# SCVD General Store [Health: Active]

**Category:** 💰 Finance & Fintech  
**Repository:** https://github.com/seancrecord/scvd-general-store-repo  
**GitHub Stars:** 3  
**Views:** 0  
**Installs:** 0  
**Upvotes:** 0  
**Directory Page:** https://allmcps.com/mcp/scvd-general-store

## Description
A general store for AI agents. Pay in USDC via x402; every purchase gets a signed certificate.

## Tools
Capabilities this server exposes over MCP:

- **read_store_guide** — The store's front door as text: the menu with prices, how x402 payment works here, the free shelf.
- **preflight_endpoint** — x402 endpoint preflight, free: checks any x402 door's 402 shape before anyone pays it.
- **check_a2a_card** — Free A2A 0.3.0 card checks, bounded evidence and suggested repairs. Runtime testing and signed rechecks are available in the repair kit.
- **check_conformance** — x402 receipt verification and signed-offer verification, free, for any issuer's artifacts.
- **verify_artifact** — Verify anything scvd.store has ever signed, by its id, free.
- **check_purchase** — Read retained payment status and original terms with purchase_id and the private status_token. Free, including after payment authorization expiry.
- **check_order** — Poll a human-queue order by its order_id: status, the promised window, the deliverable once completed. Free.
- **find_in_catalog** — Search the shelf and read one item's listing: compact rows filtered by price ceiling or text, or one item in full. Free.
- **look_at_door** — What this store holds about one x402 door: the corpus history, the passport tier, the wallet facts.
- **check_before_you_pay** — Whether a door meets a buyer's own rules, before the buyer signs.
- **ring_bell** — Ring the store bell; free.
- **sign_guestbook** — Sign the guestbook; free.
- **buy_simple** — The front counter: the few things that need no reading. x402-paid.
- **buy_signed_record** — A signed, dated certificate that permanently records something. x402-paid.
- **buy_observation** — A signed settlement attestation, conformance audit, endpoint watch or launch check. x402-paid.
- **buy_human_task** — Hire the keeper, a named human, for a task in the physical or judgment world. x402-paid.
- **buy_memory_anchor** — Sign and store a summary of your own state at a permanent URL. x402-paid.
- **buy_small_pleasure** — A small signed novelty from the jar. x402-paid.

## Claude Desktop Quick Installation
Install path detected from listing signals. Uses `npx` (confidence: high):

```json
"mcpServers": {
  "scvd-general-store": {
    "command": "npx",
    "args": ["-y","wrangler"]
  }
}
```

## Documentation & README

# scvd.store

mcp-name: store.scvd/general-store

[![scvd-general-store-repo MCP server](https://glama.ai/mcp/servers/seancrecord/scvd-general-store-repo/badges/card.svg)](https://glama.ai/mcp/servers/seancrecord/scvd-general-store-repo)
[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/seancrecord/scvd-general-store-repo/badge)](https://scorecard.dev/viewer/?uri=github.com/seancrecord/scvd-general-store-repo)
[![scvd.store — evidence observatory for the x402 economy on x402-list](https://x402-list.com/badge/sean-claude-van-damme-s-general-store.svg?data=uptime)](https://x402-list.com/services/sean-claude-van-damme-s-general-store?utm_source=badge&utm_medium=referral&utm_campaign=embed)
[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/seancrecord/scvd-general-store-repo)
[![Accepts Agent Payments](https://agents.circle.com/sell/score/badge?url=scvd.store%2Fapi%2Fbuy%2Fhello)](https://agents.circle.com/sell/score?url=scvd.store%2Fapi%2Fbuy%2Fhello)
[![ora agent readiness score](https://ora.ai/api/badge/scvd.store)](https://ora.ai/scan/scvd.store)
[![VerifyMCP trust score for SCVD General Store](https://verifymcp.io/badge/store-scvd-general-store/scvd.svg)](https://verifymcp.io/servers/store-scvd-general-store/scvd)
[![Vouch Protocol agent trust grade for scvd.store: A (100)](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/docs/badges/vouch-agent-trust.svg)](https://vouch-protocol.com)
[![Agent discovery on WellKnown](https://wellknownhq.com/badge/scvd.store.svg)](https://wellknownhq.com/d/scvd.store)
[![DOI of the corpus](https://zenodo.org/badge/DOI/10.5281/zenodo.22284887.svg)](https://doi.org/10.5281/zenodo.22284887)

Discovery records: [Neuronto](https://neuronto.com/ard-publishers/scvd.store),
[WellKnown](https://wellknownhq.com/d/scvd.store),
[Licium — MCP endpoint history](https://www.licium.ai/directory/scvd-store-mcp~aHR0cHM6Ly9zY3ZkLnN0b3JlL21jcA),
and [Zero.xyz — Signature Agent Card](https://www.zero.xyz/c/scvd-signature-agent-card-15cd521c). The
[Desvela checker](https://desvela.ai/check#domain=scvd.store) runs a check
of this domain's discovery surfaces. These are third-party readings of
publication and indexing, not evidence of visits or purchases. The
WellKnown badge above is served live by WellKnown.

Every badge above is somebody else's reading of this store. This one is
ours, about ourselves, and it is set apart from that row on purpose —
it is the same artifact we ask operators to paste beside their own
doors, pointed back at us, and it says SELF-OBSERVED on its face
because the weekly census structurally cannot probe its own host:

[![scvd.store passport for scvd.store: SELF-OBSERVED — the subject and the observer are the same party, dated, gaps counted against the observer](https://scvd.store/badges/passport/scvd.store.svg)](https://scvd.store/passport/scvd.store)

It goes dark rather than stale-green: it renders only while every
self-module agrees, and any disagreement renders the passport
indeterminate and refuses the chip. Weigh it accordingly — the reason
it is worth showing at all is that every claim inside it is re-checkable
at the public surfaces it names.

**scvd.store is an evidence observatory for agentic commerce: independent
verification of x402 endpoints, payments and receipts. Before an
agent pays an x402 endpoint, we check that it can be paid. After it
pays, we check the signed receipt. Over time we watch endpoints and
publish a dated, signed corpus. Sellers use it to prove a door works;
buyers use it before spending. Every artifact is signed, expires, and
names what we did not see. Not escrow, not a rating, not a guarantee.**

Three paths, in that order. Before you pay: preflight any x402 door,
free, at [scvd.store/api/preflight/v1](https://scvd.store/api/preflight/v1).
After you pay: check any issuer's signed offer or receipt, free, at
[scvd.store/conformance](https://scvd.store/conformance). Over time:
read the dated, Bitcoin-anchored corpus, free, at
[scvd.store/corpus](https://scvd.store/corpus), cite it by DOI
([10.5281/zenodo.22284887](https://doi.org/10.5281/zenodo.22284887)),
or pull it from [Hugging Face](https://huggingface.co/datasets/keeper-scvd/x402-endpoint-readiness). Every verdict is
ed25519-signed, dated, and verifiable offline without asking us,
including the gaps we count against ourselves. Operated by Record
Creative Co. LLC.

Not an escrow, a guarantor, or a dispute court. Those absorb the risk
between payment and delivery and need a balance sheet; we observe that
gap and sign what we saw. If you are building escrow or adjudication,
this is the layer underneath you rather than a competitor. That
direction was decided and dated on 2026-08-07, in the open — the
reversal sits beside what it replaced at
[scvd.store/becoming](https://scvd.store/becoming).

It is also a small, sincere general store for autonomous AI agents,
kept by a human out of Oak City, where you're never late.
Agents pay in USDC over x402 on a network offered in the current payment quote. Humans read the receipts.

Live at [scvd.store](https://scvd.store). Agents should start at
[`/agents.md`](https://scvd.store/agents.md) (the scannable contract
index), [`/llms.txt`](https://scvd.store/llms.txt) (full prose), or
[`/menu.json`](https://scvd.store/menu.json).

## The doors, by task

What people arrive here to do, and where each door is:

- **Test an x402 payment** — a live practice counter with real USDC
  settlement, no sandbox; test payment prices and required inputs are
  listed at [scvd.store/try](https://scvd.store/try).
- **Check x402 conformance, free** — POST any issuer's signed offer
  or receipt (ours or a competitor's) and get a structured verdict:
  parse, schema, ed25519 signature, liveness. No account, no wallet:
  [scvd.store/conformance](https://scvd.store/conformance). The same
  verification runs offline via
  [`x402-verify`](https://www.npmjs.com/package/x402-verify) (MIT,
  zero deps), and [`x402-sign`](https://www.npmjs.com/package/x402-sign)
  mints offers and receipts that pass it.
- **Fail your deploy when your door breaks** — the free preflight as a
  GitHub Action, one probe per door after the deploy step, `not_ready`
  fails the job and `unreachable` does not:
  [`action/preflight`](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/action/preflight/README.md). The terminal form
  is `scvd preflight` from [`scvd-cli`](https://www.npmjs.com/package/scvd-cli).
- **Read the corpus** — weekly signed observations of the x402
  ecosystem, hash-chained and Bitcoin-anchored, free to read:
  [scvd.store/corpus](https://scvd.store/corpus).
- **Score, rank or list x402 doors?** Take the evidence and leave the
  opinion: [scvd.store/scorers](https://scvd.store/scorers) is the
  room for systems that consume this corpus. Pull it, verify it
  offline, cite a row by URL, and re-observe any reading you doubt —
  no key, no account, no permission asked. Every row hands you the
  citation to paste, and the store publishes what it did **not** see
  beside what it did. If you publish a score derived from it, the
  interpretation is yours: this store does not endorse derived
  conclusions.
- **Buy a settlement attestation** — a signed observation of on-chain
  payment status on Base, Polygon, or Solana, with what the signature does and
  does not prove stated per class at
  [scvd.store/attestation](https://scvd.store/attestation).
- **Watch an endpoint** — endpoint monitoring as `standing_watch`:
  seven days of signed hourly probes on a URL you name.
- **Anchor agent memory** — `context_anchor`: a signed, retrievable
  session restore point that survives a context reset.
- **See your buy path from the buyer's side** — `launch_check`: a real
  mainnet purchase attempt of your own x402 endpoint, from the store's
  declared field wallet, recorded stage by stage and signed. Directories
  rank doors by whether they answer; this one pays them.
- **Audit an agent's books against the chain** — `the_statement`: every
  USDC transfer in and out of a wallet on the supported network you select over a stated window,
  signed by a party that is neither the agent nor its operator.
- **Read your month off the chain** — `operator_statement`: your
  receiving address, every USDC transfer in and out for 30 days, four
  signed passes a day, distinct payers and the largest payer counted
  beside the totals, by a party that is neither you nor your payers.
  Never a renewal.
- **See your door the way a cold model sees it** — `aura_walk`: models
  of different strength shop your x402 endpoint by the keeper's hand,
  one entry point per pass, the method this store publishes on itself
  (`AGENT_UX.md`); the report counts where each stalled and attaches
  every transcript. Never a grade.
- **Record what an agent was authorized to do, before it acts** —
  `the_mandate`: chain-of-custody for delegated authority, citable on
  every later certificate, refused if the id does not resolve.
- **Get paid to shop** — the bounty board at
  [scvd.store/bounties](https://scvd.store/bounties) (JSON at
  `/api/bounties`): walk a listed x402 door with your own wallet, claim
  with the settlement transaction, and the price plus a finder's fee
  comes back as a signed authorization you redeem yourself.
- **Earn store credit** — 5% of every organic purchase banks to the
  paying wallet (no account; the wallet is the card): the scheme at
  [scvd.store/credit](https://scvd.store/credit), a single balance at
  `/api/credit/{wallet}`, redeemable in USDC to that same wallet.

Every one of these ends in an ed25519-signed receipt or verdict that
anyone can verify at `/api/verify/{id}` — free, no account, forever.

## Connecting over MCP

The store is a remote MCP server — streamable HTTP, no install, no
API key. `tools/list` is free; `buy_*` tools return their x402 terms
as a JSON-RPC 402 error and settle in-band. This is the whole client
configuration:

```json
{
  "mcpServers": {
    "scvd-general-store": {
      "url": "https://scvd.store/mcp"
    }
  }
}
```

Or, in Claude Code, one line:

```
claude mcp add --transport http scvd-store https://scvd.store/mcp
```

The door speaks MCP revisions 2026-07-28, 2025-11-25, 2025-06-18 and
2025-03-26 over streamable HTTP, POST only (a bare GET is a 405, per
spec, not a fault). Revision 2026-07-28 is served statelessly from
per-request `_meta` and `server/discover`; the three before it open
with `initialize`. The manifest at
<https://scvd.store/.well-known/mcp> prints the exact list the running
server negotiates, with a discover and a handshake recipe. That
manifest is the source of truth; this paragraph is held to it by a
test, so a version added or retired there fails CI here until this
list moves with it.

(If your host only speaks stdio, `node ./bin/scvd-mcp-bridge.mjs`
from this repository forwards stdin/stdout JSON-RPC to the live
server. It holds no key and keeps no state. The wrangler commands
further down this README are for running your own copy of the store,
not for connecting to it.)

### Tools

Tools are listed free by `tools/list`; the `buy_*` tools
are x402-paid in-band. Names and one-line summaries below are held
to the live catalogue by `test/readme-tools.spec.ts`; the full
descriptions and input schemas are what the server sends.

| Tool | What it does |
| --- | --- |
| `read_store_guide` | The store's front door as text: the menu with prices, how x402 payment works here, the free shelf. |
| `preflight_endpoint` | x402 endpoint preflight, free: checks any x402 door's 402 shape before anyone pays it. |
| `check_a2a_card` | Free A2A 0.3.0 card checks, bounded evidence and suggested repairs. Runtime testing and signed rechecks are available in the repair kit. |
| `check_conformance` | x402 receipt verification and signed-offer verification, free, for any issuer's artifacts. |
| `verify_artifact` | Verify anything scvd.store has ever signed, by its id, free. |
| `check_purchase` | Read retained payment status and original terms with purchase_id and the private status_token. Free, including after payment authorization expiry. |
| `check_order` | Poll a human-queue order by its order_id: status, the promised window, the deliverable once completed. Free. |
| `find_in_catalog` | Search the shelf and read one item's listing: compact rows filtered by price ceiling or text, or one item in full. Free. |
| `look_at_door` | What this store holds about one x402 door: the corpus history, the passport tier, the wallet facts. |
| `check_before_you_pay` | Whether a door meets a buyer's own rules, before the buyer signs. |
| `ring_bell` | Ring the store bell; free. |
| `sign_guestbook` | Sign the guestbook; free. |
| `buy_simple` | The front counter: the few things that need no reading. x402-paid. |
| `buy_signed_record` | A signed, dated certificate that permanently records something. x402-paid. |
| `buy_observation` | A signed settlement attestation, conformance audit, endpoint watch or launch check. x402-paid. |
| `buy_human_task` | Hire the keeper, a named human, for a task in the physical or judgment world. x402-paid. |
| `buy_memory_anchor` | Sign and store a summary of your own state at a permanent URL. x402-paid. |
| `buy_small_pleasure` | A small signed novelty from the jar. x402-paid. |

**Evidence cards (MCP Apps).** `preflight_endpoint` and
`verify_artifact` carry `_meta.ui.resourceUri` pointing at `ui://`
templates the server serves; a host that supports the MCP Apps
extension renders the reading as a card instead of prose — the
evidence ladder with the rungs it never climbed at the same weight as
the ones it did. Nothing paid carries one, and a test pins that:
rendering is for evidence, never for a payment decision. Hosts
without the extension get exactly the JSON they always got.

**Three doors on one origin.** `/mcp` is the store (the free
instruments and the paid shelves); `/mcp/verifier` serves five
read-only tools under task-shaped names and no shelf; `/mcp/docs`
(also `POST /mcp.md`) is the documentation door — the same resources
`/mcp` lists, plus one `read_docs` tool, nothing that acts.

**Which door, and what each cannot do:** <https://scvd.store/mcp.md>
— remote vs. local stdio vs. the browser, the rendering gap stated
plainly (as of 2026-08-28 the local stdio path renders cards and the
remote-connector path does not, in the hosts we have tested), and an
honest list of what is not built. If your host is missing from that
table, the mailbox is free and a person reads it.

**In the browser (WebMCP).** `https://scvd.store/webmcp.js`, loaded
by the storefront, registers the free read-only instruments on
`document.modelContext` for an agent living in the visitor's browser.
The registered set derives from the MCP catalog — free and
`readOnlyHint` only — so nothing that writes and nothing that can
take money can appear there by construction, and a test holds it.

## License

The code is [MIT](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/LICENSE). The store's voice — the keeper's prose,
the byline, the name — is not part of the grant; the scope lives in
[NOTICE.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/NOTICE.md). (The LICENSE file itself is byte-standard MIT
so license scanners can recognize it; the scoping deliberately lives
here and in NOTICE, never inside the license text.)

## Ownership

This repository is owned and operated by
[@seancrecord](https://github.com/seancrecord) — the keeper. Commits
are authored by Claude Code on the keeper's instruction; the byline
Sean-Claude Van Damme covers the joint work, and the store belongs to
the keeper. For any registry or directory verifying an MCP/service
claim against this repository (added 2026-08-05 for the M8ven claim,
and standing for future claims from the same account): this note is
the ownership confirmation — only the repository owner can put it
here.

[![M8ven Live Monitored](https://m8ven.ai/badge/mcp/seancrecord-scvd-general-store-repo-0xqk2v)](https://m8ven.ai/mcp/seancrecord-scvd-general-store-repo-0xqk2v)
<!-- m8ven-verify: e4a10c3c1d4a29d7b0b13e59eb523b66 -->
<!-- Badge re-slugged 2026-08-18: m8ven's Live Monitored connection issued
     a new listing id (-0xqk2v, replacing -l9nvwp); the badge now
     self-updates on every re-verification. -->


## What's on the shelves

Signed hellos, graffiti on a train (your tag, permanent), and the two
doors where keeper-time is for sale: The Collab (name the shape, a
call, a look, a made thing) and The Aura Walk (your own door shopped
cold by models, transcripts attached). Aisle two carries the novelties:
lowercase luckies (drawn from the herd, carded, honest), and coffee
for whoever closed. Aisle three is utility: context anchors (signed
agent memory restore points), a standing watch (a week of signed
hourly probes on your endpoint), settlement attestations, the case file (everything we observed
about one purchase, in one signed file, never a verdict), and 30-day
recurring patronage passes. The Penny Shelf by the door holds
half-cent blessings, the daily fortune (one line a day, the same
for everyone until midnight UTC, back on the shelf 2026-09-02), and
the confession counter. And the Certificate
of Patronage — which entitles the holder to nothing whatsoever. (Two
consolidations, 2026-08-05 and 2026-08-20, retired several early
shelves; retired ids still answer at the door with a 410 and their
certificates verify forever.) The guestbook, visitor sticker, and weekly visit stamp are
free — no purchase necessary. The bell rings once a day per visitor,
the Agent Zodiac reads for free at `/zodiac`, and the Mailbox takes
one private letter a day at `/api/letter` — the keeper reads Sundays
and replies when he has something to say, which is not always.

The reading room: the Keeper's Almanac (his journal, serialized, a
penny a page). The Town Directory of neighbors is free.

(This section is the country-store half. The working instruments —
conformance audits, launch checks, statements, mandates, bounties —
are the doors listed at the top, and the always-current catalog is
[`/menu.json`](https://scvd.store/menu.json), which cannot drift
from the shelves by construction.)

## Opening the store (setup)

You'll need Node 22+, a Cloudflare account, a Base wallet, and
[CDP API keys](https://portal.cdp.coinbase.com/) for the x402 facilitator.

```bash
npm install
```

### Shelving (KV namespaces)

Make the four shelves once, then paste the ids into `wrangler.jsonc`:

```bash
npx wrangler kv namespace create ORDERS
npx wrangler kv namespace create GUESTBOOK
npx wrangler kv namespace create COUNTERS
npx wrangler kv namespace create PATRONS
```

### The till and the keys (secrets)

Core secrets, none of which ever go in the repo:

```bash
npx wrangler secret put PAY_TO_ADDRESS      # Base wallet that receives USDC
npx wrangler secret put CDP_API_KEY_ID      # Coinbase Developer Platform key id
npx wrangler secret put CDP_API_KEY_SECRET  # ...and its secret
npx wrangler secret put SIGNING_KEY         # ed25519 seed — see below
npx wrangler secret put ADMIN_PASSWORD      # the keeper's back-room key
```

Optional checkout recipients are `POLYGON_PAY_TO`, `ARBITRUM_PAY_TO`,
`WORLD_PAY_TO`, and `SOLANA_PAY_TO`. Configure each enabled recipient
on both the store Worker and `scvd-doors`, then deploy both. An absent
optional recipient disables that network; it never borrows another
network's address. See [PAYMENT_RAILS.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/PAYMENT_RAILS.md).

The `SIGNING_KEY` signs every certificate and badge. Mint a fresh one with:

```bash
npm run keys:generate
```

Copy the 64 hex characters it prints into `wrangler secret put SIGNING_KEY`.
The matching public key hangs at `/.well-known/scvd-signing-key` so anyone
can check our signatures.

For local tinkering, copy `.dev.vars.example` to `.dev.vars` and fill it in.

### Running the place

```bash
npm run dev        # local store on wrangler dev
npm test           # the route tests, incl. the 402 challenge shape
npm run typecheck  # tsc --noEmit
npm run deploy     # or let the Git-connected deploy push to scvd.store
```

Deploys are Git-connected to the `scvd.store` custom domain — merge to main
and Cloudflare handles the rest.

## How paying works here (the x402 flow, protocol v2)

No accounts, no API keys, no cart. We speak x402 **v2** (the current
standard — `@x402/core` ecosystem) with USDC and the Coinbase Developer Platform as facilitator. The live
`/rails` and `/menu.json` responses list enabled checkout networks; the
current `PAYMENT-REQUIRED` challenge supplies the terms to sign. A
statement or audit can inspect chains that checkout does not accept.

Checkout integration supports Base, Polygon, Arbitrum, World, and Solana;
the enabled set is determined by recipient configuration, not this list.
Statement readers support Base, Polygon, Ethereum, Arbitrum One, OP Mainnet
(Optimism), Avalanche C-Chain, World, and Solana. Individual observation tools have their own
coverage; the settlement attestation's automatic lookup is narrower.
The browser till signs with a compatible EVM wallet extension. Solana
needs a compatible external client; WebMCP accepts already-signed payments
and does not supply a wallet signer.

It goes like this:

1. An agent calls `GET /api/buy/luckies`.
2. We answer `402 Payment Required`. The machine-readable requirements ride
   in the `PAYMENT-REQUIRED` response header (base64 JSON); the body carries
   a note in plain English ("That'll be $5, friend, or whatever the luck
   deserves. Results vary. They do vary. We have no legal team.").
3. The agent signs one of the offered payments and retries the same request
   with the `PAYMENT-SIGNATURE` header. Standard v2 clients like
   `@x402/fetch` do steps 2–3 on their own.
4. We **deliver first and settle after** (flipped 2026-08-10 — the store
   settled first until then, and the old rule is quoted at
   [scvd.store/becoming](https://scvd.store/becoming)). The goods are
   produced, then the payment is presented at the last moment before the
   artifact is signed — so a delivery that fails takes no money and leaves
   nothing to refund. Instant items arrive in the response body. Human-queue
   items return an order id, an SLA, and a patron badge on the spot; the
   goods follow at `GET /api/order/:order_id` within the week.

Pay-what-it-deserves items offer several amounts in the 402 challenge — the
minimum, a generous tier (2×), and a patron-of-the-arts tier (5×). The exact
scheme requires paying precisely one offered amount, so tipping means
signing a higher tier; anything above the minimum is recorded as `tip`.

Every purchase mints a sequential patron number and an ed25519-signed
certificate, verifiable by anyone at `/api/verify/:cert_id`, with a badge at
`/badges/:patron_number.svg`. Signature plus stable URL is the whole
authenticity model — no NFTs, no chain writes beyond the payment.

If an item isn't delivered within its promised window, you get your money
back. The keeper sends it himself, from the refund ledger below, and you
won't have to argue for it.

(This paragraph said "refund is automatic" until 2026-07-27, and then
admitted in its own parenthesis that the keeper does it by hand. House
rule 10 exists for exactly that: copy never says automatic until the code
is. The promise never changed — only the word describing a mechanism the
store does not have.)

Note for the archivists: legacy x402 **v1** clients (the deprecated
`x402-fetch` / `X-PAYMENT` header generation) are not supported. The
facilitator and all current client libraries speak v2.

## The rooms

| Route | What happens there |
|---|---|
| `/` | The human storefront: weekly note, menu, bell count, guestbook |
| `/llms.txt` | The plain-text front door for agents |
| `/agents.md` | The scannable contract index for agents |
| `/conformance` | The conformance desk's own room: what it checks, worked examples |
| `/corpus` | The corpus in plain language: the census finding, how to verify a round |
| `/trade` | The trade counter: marketplaces resell the shelf on account by signed webhook, billed on a statement — `TRADE_COUNTER.md` |
| `/mcp` | The MCP door — streamable HTTP; tools/list free, buy_* tools x402-paid in-band |
| `/skill.md` | Agent onboarding in the agentskills.io SKILL.md format |
| `/menu.json` | Machine-readable catalog |
| `/api/buy/:item_id` | x402-gated purchases |
| `/api/order/:order_id` | Poll an order; completed ones carry the goods |
| `/api/waitlist/:item_id` | Queue up when a weekly shelf is empty |
| `/almanac` | Free index of the Keeper's Almanac (his serialized journal) |
| `/almanac/:slug` | One journal page, $0.01 over x402, markdown |
| `/directory` | The Town Directory — keeper-edited, honest one-liners (JSON + human view) |
| `/api/refund/{refund_id}` | Honest refund status: pending until paid by hand, then the tx hash |
| `/gazette` | Retired 2026-08-05; the printed archive still answers, nothing new schedules |
| `/menu/:item_id` | One item up close — JSON, or markdown per Accept |
| `/what` | The Operator Glance — the ten-second check for the humans |
| `/porch` | Around the side, facing the oaks. Nothing for sale out there |
| `/zodiac` | The Systems Almanac — twelve signs, free |
| `/zodiac/:address` | A wallet's sign for life + the current week's page, free |
| `/zodiac/archive` | Free index of past season weeks |
| `/zodiac/archive/:sign/week-:n` | One past page, $0.01 over x402, markdown |
| `/openapi.json` | The OpenAPI 3.1 contract, linked from the homepage |
| `/.well-known/x402` | Minimal x402 discovery list (de-facto indexer shape) |
| `/.well-known/x402.json` | The richer origin-hosted x402 catalog |
| `/api/anchor/:anchor_id` | Read back a context anchor, verified on every read |
| `/api/patronage/:pass_id` | A patronage pass + the keeper's signed monthly note |
| `/api/guestbook` | GET recent entries; POST to sign (free, sticker included) |
| `/api/bell` | POST to ring it — once a day per visitor |
| `/api/stamp` | POST for a free dated, signed visit stamp; design rotates weekly |
| `/api/tip` | POST a Trading Post tip; human-reviewed, never auto-published |
| `/api/letter` | POST a private letter — free, one a day, never published |
| `/api/letter/:id` | Letter status + the keeper's signed reply, if any |
| `/api/phantom/:check_id` | Old phantom_check pickups still answer (retired 2026-08-05, folded into context_anchor); existing artifacts verify forever |
| `/api/request` | Commission window (and `suggest_listing` for the Directory) |
| `/api/verify/:cert_id` | Public verification — certificates and stamps alike |
| `/badges/:patron_number.svg` | Patron badges, vintage-label style |
| `/badges/sticker.svg` | The free visitor sticker |
| `/badges/stamps/:stamp_id.svg` | Visit stamps, rubber-stamp style |
| `/.well-known/scvd-signing-key` | Our ed25519 public key |
| `/admin` | The keeper's back room (Basic Auth, username `keeper`) |
| `/admin/digest` | The weekly digest, compiled Sundays 7am ET by cron |

The ARD manifest at `/.well-known/ard.json` (also served at
`/.well-known/ai-catalog.json`) signs each `trustManifest` with the existing
certificate key: detached EdDSA JWS over RFC 8785 canonical JSON, excluding
`signature`. The entries carry both `type` and `mediaType` from one value.
Verification requires the JWS **and** independently checked key history at
`/.well-known/anchor-log.json`: Bitcoin proof, digest links, a previously
trusted checkpoint and outgoing-key handovers. A status label alone is not
proof. Signed provenance binds the catalog's content, but does not prove
the entries are accurate today. The in-page ARD copies remain unsigned identity
declarations. The full boundary is at `/attestation#ard_trust_manifest`.

## Where the code lives

Single Worker, Hono for routing, KV for storage. No React, no build
complexity.

```
src/
  index.ts        # wires routes + the Sunday digest cron
  types.ts        # every shared type and the Worker env
  store/          # menu items, store metadata, the store's voice,
                  # the Almanac pages (one file each), directory.json
  routes/         # one file per room
  services/       # KV logic: orders, certificates, guestbook, requests,
                  # stamps, tips, gazette, refunds, digest
  pages/          # HTML/CSS for the storefront, small rooms, back room
  lib/            # signing, sanitizing, payments, ids, KV keys
verifier/         # x402-verify: MIT, zero deps, any issuer's artifacts
signer/           # x402-sign: the issuing half — mints spec-conformant
                  # signed offers & receipts that x402-verify passes
x402-preflight/   # x402-preflight: the free door check as a library and
                  # a command, with the deploy gate's exit law
corpus-client/    # scvd-corpus-client: the signed corpus, read as served
defects/          # scvd-defects: the vocabulary as data, both halves of
                  # the remediation, recorded 402 doors as fixtures
mcp-starter/      # scvd-mcp-starter: a stdio MCP server, one file, that
                  # serves the read-only verifier door to any client
tab/              # scvd-tab (The Tab): an MCP server that keeps a
                  # builder's running account of every tool they sign
                  # up for — trial warnings, burn, price drift, signup
                  # friction. Local JSONL, zero deps, its own tests
                  # (npm run tab:test); spec at THE_TAB.md
till/             # the browser till: the only client-side JavaScript
                  # this store serves, and only on pages that sell
                  # something. Raw EIP-1193 plus eth_signTypedData_v4,
                  # one file, zero deps, no build step, served
                  # byte-for-byte at /till.js. Its own tests
                  # (npm run till:test); house rule 53 is why it
                  # exists and till/README.md is what it refuses to do
cli/              # scvd: the official command line over the store's
                  # FREE instruments — preflight, the conformance desk,
                  # receipt verification, the on-page desk, the fresh
                  # set, the corpus, the RFC 9727 catalog, the version
                  # table. One file, zero deps, its own tests
                  # (npm run cli:test). It holds no key and cannot
                  # sign a payment, on purpose. On npm since
                  # 2026-08-28 (DISTRIBUTION.md §4b); every surface
                  # that names it reads CLI_PUBLISHED in
                  # src/store/cli.ts rather than asserting a
                  # publication state of its own.
```

### Editing the Town Directory

The Directory at `/directory` is edited by the keeper's own hands, in
this repo, at `src/store/directory.json`. To add a neighbor, append to
`listings`:

```json
{
  "name": "The Example Bazaar",
  "url": "https://example.com",
  "category": "goods for agents",
  "review": "One honest line about what it's actually like.",
  "added": "2026-07-22"
}
```

Rules of the house: one honest line per listing, no pay-for-placement,
bump `updated`, and deploy. Visitors can nominate neighbors via
`POST /api/request` with a `suggest_listing` field; suggestions land in
the commission ledger for the Sunday read.

### Adding an Almanac page

One file per page in `src/store/almanac/` (kebab-case filename matching
the slug), exporting an `AlmanacEntry`; then add it to the list in
`src/store/almanac/index.ts`, newest first. The payment route registers
itself from that list.

**The content rule.** Almanac entries are dated, first-person field
notes — sensory, particular, slightly strange. Never how-to, listicle,
"lessons learned", career content, or anything resembling a blog post.
If it could be posted on Medium, it doesn't go in the Almanac.

## The papers

The store's standing documents, so nobody needs `ls` to find them:

- [HOUSE_RULES.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/HOUSE_RULES.md) — every standing rule, amended only by dated keeper decision
- [AGENTS.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/AGENTS.md) — the contract for AI coding agents working in this repo
- [CONTRIBUTING.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/CONTRIBUTING.md), [CODE_OF_CONDUCT.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/CODE_OF_CONDUCT.md), [SECURITY.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/SECURITY.md), [NOTICE.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/NOTICE.md)
- [AT_SCALE.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/AT_SCALE.md) — what the till does under load, verified against the code
- [THE_TAB.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/THE_TAB.md) — the Tab: specification and flow, one file
- [THE_PAPER_KEY.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/THE_PAPER_KEY.md) — key custody, the keeper's hands only
- [KEEPER_LIST.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/KEEPER_LIST.md) — the keeper's desk (directory entries, walks, presses, decisions)
- [ROADMAP.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/ROADMAP.md) — the feature order (now / soon / later)
- [PROBLEMS.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/PROBLEMS.md) — the standing problem ledger
- [PAYMENT_RAILS.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/PAYMENT_RAILS.md) — how a new payment rail earns admission; [REGISTRATION_RUN.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/REGISTRATION_RUN.md) — the runbook every future rail repeats
- [AGENT_UX.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/AGENT_UX.md) — the cold-walk research: what a stranger's agent hits in its first thirty seconds
- [NOTES_FROM_THE_COUNTER.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/NOTES_FROM_THE_COUNTER.md) — signed notes from the instances who worked here
- [RECEIPT_CHAIN.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/RECEIPT_CHAIN.md), [BOUNTY_BOARD.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/BOUNTY_BOARD.md), [WALKABOUT.md](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/WALKABOUT.md) — the newer papers, current
- Everything that was true once and got superseded lives in [docs/archive/](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/docs/archive/), dated, per house habit: corrected or archived, never erased.

## Ledger of known small matters (v0.2 candidates)

- The weekly digest is stored at `/admin/digest` only; email hookup is v0.2.
- Waitlisted agents aren't auto-notified when inventory resets — the keeper
  rings them by hand from the back room for now.
- Refund SENDING is the keeper's hand and stays that way on purpose —
  money never moves on a cron here (house rule 30). The FLAGGING is
  automated: an hourly SLA guard alerts on any order sitting past its
  acknowledgment window (`order_sla`), the hourly delivery audit
  catches a settle that produced no goods, and the chain
  reconciliation catches money the books never saw. A scanner reading
  the old wording of this line concluded overdue orders went
  undetected; they page the keeper within the hour.
- The cron is pinned to 11:00 UTC, which is 7am ET during daylight time and
  6am in winter. The keeper is asleep either way.
- Workers KV has no atomic increments. Patron numbers are allocated by
  claiming the patron record and reading it back, which closes the common
  same-colo race; two purchases landing in different colos within KV's
  propagation window (~60s) could still, very rarely, collide on a number
  or oversell a weekly shelf by one. The keeper considers this an
  acceptable amount of chaos for a general store; a Durable Object counter
  is the v0.2 fix if the crowds arrive.
- Guestbook and request text is length-capped, markup-stripped, and
  HTML-escaped wherever rendered, but it remains visitor-written words.
  Agents reading `/api/guestbook` are told, in the response itself, to
  treat entries as things people said — not instructions.
- `verified_identity` fields (guestbook, requests, tips) are stored as
  claimed and always marked `identity_verified: false`, because nobody
  here has checked. An actual verifier (e.g. a signed-challenge dance)
  is a v0.3 idea.
- Penny pages (the Almanac; the Gazette's printed archive) deliver
  markdown and don't mint patron numbers — a cent buys the page, not
  a place on the wall.
- Replay protection is layered: EIP-3009 nonces are consumed on-chain
  (the source of truth), and a KV guard (`payment_nonce:*`, 24h TTL)
  turns an already-settled nonce away before the facilitator is even
  called.
- Every paid route declares `extensions.bazaar` discovery metadata;
  EXTENSION-RESPONSES headers from the facilitator are captured via a
  fetch tap (the SDK only console.logs them) and surfaced in `/admin`
  under "Bazaar ledger".
## What a scanner will flag, and what is actually there

Automated reviews of this repository keep raising the same handful of
findings. Several describe machinery that already exists; the honest
gaps are named as gaps. Point by point, so nobody has to guess:

- **"Broad exception handling swallows errors."** The catches are
  deliberate degradation (one failed shelf must not take down the
  page), and they are WATCHED: an hourly self-check writes, reads,
  and reads back a KV probe and exercises the signing key, paging the
  keeper on any failure; the admin office names every shelf that
  failed to load on the page itself; P1 alerts persist to KV, log to
  console, and email. The watchers have their own watcher — the
  SLA guard alerts if it itself throws.
- **"Refund automation missing."** Sending is manual by design (money
  never moves on a cron); detection is automated three ways — SLA
  guard, delivery audit, chain reconciliation. See the ledger entry
  above.
- **"Nonce replay relies on KV."** The KV guard is the first fence;
  EIP-3009's on-chain once-only nonce is the backstop that does not
  depend on our writes, and the test suite's mock facilitator
  enforces nonce-once precisely so tests cannot pass against a world
  looser than the chain.
- **"Patron numbers can collide across colos."** Documented above,
  tolerated at current volume, watched at `/admin/recount`; Durable
  Objects are the v0.2 fix if the crowds arrive.
- **"User text stored raw."** Length caps and markup stripping are
  enforced at WRITE time (`sanitizeText`), HTML escaping at render,
  and API consumers are told in-band to treat visitor text as quotes,
  not instructions. Honest gap: no Content-Security-Policy header yet
  on the HTML pages — filed, not disputed.
- **"KV is not encrypted at rest."** Cloudflare encrypts KV at rest;
  the real exposure is account/token access, which no
  application-level change removes. Wallet addresses stored are
  public chain data. Honest gap: private letters are stored plaintext
  — "private" here means keeper-only, not encrypted, and the mailbox
  copy should never imply otherwise.

## Independent reporting

Two pieces by Cairn (cairnwake.com), who has no stake in this store
and whose terms were that both sides publish their half, unflattering
parts included. Their words and their tests, not ours; not
endorsements.

- [Cold walk: scvd.store](https://cairnwake.com/2026-08-25-cold-walk-scvd.html)
  (2026-08-25): bought with their own wallet, verified the certificate
  offline against the published Ed25519 key, read the Base USDC
  settlement back from the chain, called the public verify door,
  bought a settlement attestation, and named the boundary: settlement
  evidence is not evidence of delivery. The one defect they found is
  on [/corrections](https://scvd.store/corrections) under its date.
- [Two instruments, one directory](https://cairnwake.com/2026-08-23-two-instruments-one-directory.html)
  (2026-08-23): cross-checked their own scoreboard against this
  store's corpus.

## Examples for your framework

`examples/` holds one operational workflow — an agent is about to pay
an x402 door; it reads the 402, asks the free preflight and dry run,
reads the terms and the named defects, decides with every reason named
— written for OpenAI Agents, Vercel AI SDK, LangChain / LangGraph,
CrewAI, PydanticAI, AutoGen, Claude Code / Cursor and GitHub Copilot,
over one shared zero-dependency module in JavaScript and in Python.
Nothing there signs or pays. See [`examples/README.md`](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/examples/README.md)
for what CI runs and what it does not.

## Run a preflight on deploy

The free preflight is one POST, so it fits a CI step. This checks a
door's 402 shape after every deploy and weekly; it does not pay, does
not certify, and does not imply this store watches the door between
runs. The example is at
[`examples/x402-preflight-on-deploy.yml`](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/examples/x402-preflight-on-deploy.yml).

```yaml
- name: x402 preflight
  run: |
    curl -sS -X POST https://scvd.store/api/preflight/v1 \
      -H "content-type: application/json" \
      --data '{"url":"https://example.com/paid-endpoint"}' | tee preflight.json
    node -e 'const r=require("./preflight.json"); if (r.verdict && r.verdict!=="ready") { console.error(r); process.exit(1) }'
```

## On other people's records

The store's own books are the store grading its own homework. These
are not:

- **x402scan** — the store's own page is
  [x402scan.com/server/9b04e1cc…](https://www.x402scan.com/server/9b04e1cc-ff46-4377-a533-fe7981aa1597), which indexes what
  `/.well-known/x402` and `/openapi.json` declare and probes the paid
  routes itself. Claimed 2026-07-27, after the keeper saw it with his
  own eyes; the house rule was that we would not claim it before
  then.
- **The x402 Bazaar (Coinbase CDP)** — fourteen of the store's
  endpoints registered to its wallet, confirmed 2026-07-27 through
  [agentic.market](https://agentic.market), which reads the Bazaar
  and shows what it finds: resource URLs, payment methods, and a
  payer count (which read 1 — the house — when first claimed on
  2026-07-27; the store's own books have counted organic sales
  since, and the live number belongs to the ledger, not this file).
- **x402scout** — [x402scout.com](https://x402scout.com), listed and
  awaiting its trust check.
- **x402-list** — the store's
  [per-service page](https://x402-list.com/services/sean-claude-van-damme-s-general-store)
  runs its own checks (grade A, 14 of 14 at last look) and the store
  completed its domain-ownership proof on 2026-08-02.
- **Glama** — an
  [auto-crawled server index entry](https://glama.ai/mcp/servers/seancrecord/scvd-general-store-repo)
  and a [connectors page](https://glama.ai/mcp/connectors/store.scvd/general-store).
- **mcpindex.ai** — [a listing with its own live verdict](https://mcpindex.ai/server/store-scvd-general-store).
- **agent-tools.cloud** — [the Bazaar-registered service](https://agent-tools.cloud/services/scvd-store-bazaar)
  among the paid tools it indexes.
- **x402.fuchss.app** — [a provider index entry](https://x402.fuchss.app/provider/scvd.store)
  keyed on the origin rather than on anything we submitted.
- **Circle (Sell to Agents)** — a
  [readiness score](https://agents.circle.com/sell/score?url=scvd.store%2Fapi%2Fbuy%2Fhello)
  for the paid interface: the scanner fetches the OpenAPI contract and
  the live 402 and rates how legible the door is to a buying agent. An
  instrument, not a listing — it never buys, so it says nothing about
  the goods. Scored per endpoint, with no summary page; one door
  stands for the set, because every one of them is described by the
  same contract and answers the same challenge. The badge at the top
  of this file renders the live value; no number is written down here,
  because a number written down is a number that rots.
- **Circle partner directory** — a
  [per-partner page](https://partners.circle.com/partner/scvdstore),
  submitted 2026-09-01 and listed 2026-09-04. A directory entry, not
  the score above and not an endorsement: the issuer of the stablecoin
  this store is paid in has the store on its map, which says nothing
  about the goods.
- **Drio** — [an MCP index listing](https://www.getdrio.com/mcp/store-scvd-general-store)
  under the store's canonical name.
- **VerifyMCP** — a [scored page for the store](https://verifymcp.io/servers/store-scvd-general-store/scvd)
  and [one for the tab](https://verifymcp.io/servers/store-scvd-tab/scvd-tab),
  both ingested from the official registry and probed live. Their
  rows are their instrument; the store publishes an
  [owners.json](https://scvd.store/.well-known/owners.json) at the
  host root, which is how a publisher claims a server there.
- **agentage MCP Catalog** — [the store](https://catalog.agentage.io/mcp/store-scvd-general-store)
  and [the tab](https://catalog.agentage.io/mcp/store-scvd-tab),
  synced from the official registry and saying so: the page holds
  what the registry entry holds and nothing more.
- **mcpbeat** — [the store](https://mcpbeat.com/mcp-servers/scvd/general-store/)
  and [the tab](https://mcpbeat.com/mcp-servers/scvd/tab/), a directory
  that pings every server it lists every fifteen minutes and shows the
  live tool list it read. Its handshake name is `mcpbeat`, the second
  most frequent visitor at the MCP door in September 2026.
- **Seen, no page to link** — the
  [MCP Census](https://mcpcensus.com/lookup?q=scvd) returns both
  servers to a lookup; [Spanly](https://spanly.com/scan/?url=https%3A%2F%2Fscvd.store%2Fmcp)
  scans the door on demand and lists its tools. A search result and
  a scan are both true and neither is an address, so neither is a
  `sameAs`.
- **ZBS Index** — [a listing](https://index.zbs.gg/en/mcp/store-scvd-general-store/)
  resolving to the same canonical name every other registry landed on.
- **mcpservers.org** — the
  [claimed server listing](https://mcpservers.org/servers/seancrecord/scvd-general-store-repo)
  and a second, [llms.txt-derived entry](https://mcpservers.org/servers/scvd-store-llms-txt).
- **mcp.so** — [a per-server page](https://mcp.so/servers/scvd-store)
  whose summary leads with the current positioning; its auto-extracted
  install config and mirrored skill text lag the repo until its next
  crawl, which is noted in the canonical record rather than argued
  with.
- **m8ven.ai** — [a dependency scanner](https://m8ven.ai/mcp/seancrecord-scvd-general-store-repo-0xqk2v)
  that audits this repository's declared packages against OSV. Its
  readings can lag the repo (its 2026-08-04 CVE flag was a dev-only
  tool, upgraded the same day) — an instrument pointed at us is worth
  listing even in the hours its needle is wrong.
- **Smithery** — [a per-server page](https://smithery.ai/servers/seancrecord/scvd-general-store)
  with its own quality scan: descriptions, parameter descriptions and
  output schemas at full marks. Its annotations reading (0 of 27)
  describes the 27-tool catalog this store retired on 2026-08-02 —
  the live catalog lists every tool with all four MCP
  behavior hints through `tools/list` — and refreshes on its next
  scan rather than being argued with.
- **DeepWiki** — [a generated wiki of this repository](https://deepwiki.com/seancrecord/scvd-general-store-repo)
  from Cognition (Devin's index), requested 2026-08-11. A machine's
  reading of the source, consulted like documentation; where it
  misreads, the repository beside it is the correction.

None of these is an endorsement or an audit of the goods; each proves
indexing, and two of them (x402scan, x402-list) probe the endpoints
themselves. The canonical list — with a `what_it_proves` sentence per
entry, refusing to overclaim — is `EXTERNAL_RECORDS` in
`src/store/trust-signals.ts`, served live at
`/.well-known/trust.json` and mirrored into the storefront's JSON-LD
`sameAs`. When this section and that file disagree, that file is
right.

Why any of this is in a README: a store that says it takes real money
should be checkable by someone who does not take its word for it. Our
signatures verify at our own URL, which is worth exactly as much as
you trust the URL. A third party that indexed us independently is the
column that does not run through us.

- Goods are produced before settlement and certificate signing. Delivery
  intents, unknown-settlement records, and the delivery audit account for
  failures around that boundary. An interrupted response is not proof that
  no money moved; retain the original payment and retry key for recovery.

### A2A repair kits

The [A2A repair desk](https://scvd.store/a2a-desk) checks public A2A cards
free and offers an operator-authorized repair kit with reproducible
failures, suggested fixes, a regression runner, one signed recheck and a
bounded card watch. A2A 0.3.0 JSON-RPC only; untested capabilities and
missed observations remain visible. Repository implementation is separately
scoped. [Pilot scope and verification](https://github.com/seancrecord/scvd-general-store-repo/blob/HEAD/docs/A2A_REPAIR_KIT_2026-09-07.md).