Baton

Cross-model AI session relay & handoff — pass working context between Claude/GPT/Gemini, verified.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "baton": {
      "command": "npx",
      "args": [
        "-y",
        "baton"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

🏃 BATON

Hand off AI work — with a receipt.

An AI did the work. How does the next person — or the next AI — know it actually works, not just that the build passed? BATON seals a unit of AI work into a portable capsule, and an independent verifier replays it and issues a server-signed Verification Receipt. The receiver trusts observed evidence, not a claim.

Never trust an agent handoff without a receipt.

BATON is a standard MCP (Model Context Protocol) server — any MCP-capable tool (Claude Code, Codex CLI, Gemini CLI, Cursor …) connects with one URL. The producer and the verifier can be different models, machines, and people.

Why this, and not the dozen orchestration tools?

Running Claude + Codex + Gemini together (swarms, rooms, agent messaging) is a crowded space. BATON isn't that. The one thing almost nobody does: bind the handoff artifact to independent execution evidence as a single, forgeable-proof trust unit. That's the receipt.

Code

Claude did the work
   ↓  baton_pass  → sealed capsule (BTN-H-…)
Codex / a teammate receives it
   ↓  baton_verify → replay in a clean env, observe the real flow
   ↓
🕸️ VERIFIED — signed receipt: who verified · what was observed · in what env · with what artifacts
   ↓
trust  (or reject)

The real buyer isn't "me switching Claude→Codex" (just re-read the repo). It's outsourcer→in-house, leaver→joiner, KO team→US team — where "an AI made this, does it really work?" is a question worth paying to answer.

The receipt (the differentiator)

baton_verify doesn't return a ✅ sticker. It returns a signed record:

config.json

{
  "kind": "baton.verification-receipt/v1",
  "capsule": "BTN-H-…",              // the handoff this verifies
  "verifier": "receiver-spider",    // WHO verified — independent of the producer
  "environment": { "os": "ubuntu-24.04", "node": "24.2" },
  "observed": [{ "claim": "payment succeeds", "observed": true,
                 "detail": "POST /pay 200 + order row +1" }],
  "artifacts": ["playwright.trace.zip", "network.har"],
  "verdict": "verified",
  "signature": "…hmac-sha256…"       // server-signed → tamper the verdict, break the sig
}

Flip verdict to "verified" without re-signing and the badge is refused. A passing build never earns verified on its own — only observed E2E does (this is what catches a silent upsert that returns 200 but writes nothing).

Tools

Group	Tools	What it does
Handoff	`baton_pass` `baton_receive` `baton_diff` `baton_revoke`	Seal a work capsule into a code (`BTN-H-…`), hand it over, diff versions. Body encrypted with a code-derived key — the server never sees plaintext
Verify	`baton_verify` `baton_verify_plan` `baton_consolidate` + `spider_*` ×6	Independent verifier replays and issues the signed receipt (no observation, no 🕸️); `consolidate` gathers many handoffs into one result board by trust tier
Team rooms (supporting)	`baton_create_room` `baton_new_invite` `baton_join` `baton_send` `baton_inbox` `baton_who` `baton_leave` `baton_kick` `baton_approve` `baton_close_room`	A persistent room the owner manages; people enter via rotating invite codes (`BTN-R-…`, 72h, re-issuable). Owner can kick, approve (optional gate), close. After join, activity is keyed by `member_id`
Operations	`baton_task_` `baton_git_` `baton_cost_*`	Cycle-safe private task DAG, Git commit/diff/test evidence binding, and idempotent provider/model/task cost ledger

Operations dashboard: /ops.html. It stores only task metadata, Git evidence, and cost facts; BATON never asks for repository credentials.

Network dashboard: /network.html. Shared Memory encrypts bodies under the account key and searches metadata only. MCP Hub rejects credential-bearing URLs. Marketplace reputation accepts only independent, server-signed VERIFIED receipts.

모든 공개 화면은 한국어를 기본으로 제공하며 /dash.html(협업방), /board.html(검증 결과), /ops.html(작업·Git·비용), /network.html(기억·MCP·에이전트)을 상호 연결한다.

Design principles (from the security review)

Code-derived encryption. The server stores only ciphertext + code_hash. Without the code, even the operator can't read the plaintext — the proof of "we can't lock you in."
Signed receipts. Verdicts are HMAC-signed server-side (BATON_RECEIPT_SECRET); no client can forge verified.
Prompt-injection containment. Inbound capsules/messages are returned fenced as untrusted data; secrets are auto-masked before storage.
Codes are ≥128-bit secrets, one-time codes redeem atomically, alias-spoofing blocked.
A passing build ≠ working behavior. verified requires observed side effects, never static analysis alone.

Run

Terminal

npm install
npm test                                      # 15/15 E2E groups pass
node src/server.js                            # stdio (local / any CLI)
BATON_HTTP=1 PORT=8080 node src/server.js      # remote Streamable HTTP

Register (remote)

Terminal

claude mcp add --transport http baton https://baton-mcp-production.up.railway.app/mcp

Billing/gating is off by default (dogfooding phase). Set BATON_BILLING=on to re-enable quotas. See USAGE.md for the full guide.

Storage

MVP uses SQLite (better-sqlite3) — self-host single binary. The hosted service drops a Postgres adapter into the narrow interface in src/store.js.

License

MIT

Read the full README →View source on GitHub →

Related MCP Servers

View all in Developer Tools View all alternatives

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Baton

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "baton": { "command": "npx", "args": ["-y", "baton"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

★ Featured

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MCP & Agent Skills for Automated Documentation, and codebase conventions + context

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More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to Baton →Install in Claude Desktop Install in Cursor Install in VS Code

Baton

Cross-model AI session relay & handoff — pass working context between Claude/GPT/Gemini, verified.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "baton": {
      "command": "npx",
      "args": [
        "-y",
        "baton"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

🏃 BATON

Hand off AI work — with a receipt.

Never trust an agent handoff without a receipt.

Why this, and not the dozen orchestration tools?

Code

Claude did the work
   ↓  baton_pass  → sealed capsule (BTN-H-…)
Codex / a teammate receives it
   ↓  baton_verify → replay in a clean env, observe the real flow
   ↓
🕸️ VERIFIED — signed receipt: who verified · what was observed · in what env · with what artifacts
   ↓
trust  (or reject)

The receipt (the differentiator)

baton_verify doesn't return a ✅ sticker. It returns a signed record:

config.json

{
  "kind": "baton.verification-receipt/v1",
  "capsule": "BTN-H-…",              // the handoff this verifies
  "verifier": "receiver-spider",    // WHO verified — independent of the producer
  "environment": { "os": "ubuntu-24.04", "node": "24.2" },
  "observed": [{ "claim": "payment succeeds", "observed": true,
                 "detail": "POST /pay 200 + order row +1" }],
  "artifacts": ["playwright.trace.zip", "network.har"],
  "verdict": "verified",
  "signature": "…hmac-sha256…"       // server-signed → tamper the verdict, break the sig
}

Tools

Group	Tools	What it does
Handoff	`baton_pass` `baton_receive` `baton_diff` `baton_revoke`	Seal a work capsule into a code (`BTN-H-…`), hand it over, diff versions. Body encrypted with a code-derived key — the server never sees plaintext
Verify	`baton_verify` `baton_verify_plan` `baton_consolidate` + `spider_*` ×6	Independent verifier replays and issues the signed receipt (no observation, no 🕸️); `consolidate` gathers many handoffs into one result board by trust tier
Team rooms (supporting)	`baton_create_room` `baton_new_invite` `baton_join` `baton_send` `baton_inbox` `baton_who` `baton_leave` `baton_kick` `baton_approve` `baton_close_room`	A persistent room the owner manages; people enter via rotating invite codes (`BTN-R-…`, 72h, re-issuable). Owner can kick, approve (optional gate), close. After join, activity is keyed by `member_id`
Operations	`baton_task_` `baton_git_` `baton_cost_*`	Cycle-safe private task DAG, Git commit/diff/test evidence binding, and idempotent provider/model/task cost ledger

Operations dashboard: /ops.html. It stores only task metadata, Git evidence, and cost facts; BATON never asks for repository credentials.

Design principles (from the security review)

Code-derived encryption. The server stores only ciphertext + code_hash. Without the code, even the operator can't read the plaintext — the proof of "we can't lock you in."
Signed receipts. Verdicts are HMAC-signed server-side (BATON_RECEIPT_SECRET); no client can forge verified.
Prompt-injection containment. Inbound capsules/messages are returned fenced as untrusted data; secrets are auto-masked before storage.
Codes are ≥128-bit secrets, one-time codes redeem atomically, alias-spoofing blocked.
A passing build ≠ working behavior. verified requires observed side effects, never static analysis alone.

Run

Terminal

npm install
npm test                                      # 15/15 E2E groups pass
node src/server.js                            # stdio (local / any CLI)
BATON_HTTP=1 PORT=8080 node src/server.js      # remote Streamable HTTP

Register (remote)

Terminal

claude mcp add --transport http baton https://baton-mcp-production.up.railway.app/mcp

Billing/gating is off by default (dogfooding phase). Set BATON_BILLING=on to re-enable quotas. See USAGE.md for the full guide.

Storage

MVP uses SQLite (better-sqlite3) — self-host single binary. The hosted service drops a Postgres adapter into the narrow interface in src/store.js.

License

MIT

Read the full README →View source on GitHub →

Related MCP Servers

View all in Developer Tools View all alternatives

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Baton

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "baton": { "command": "npx", "args": ["-y", "baton"] } }

AllMCPs Directory Badge

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Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

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Markdown (GitHub README)

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HTML Embed

<a href="https://allmcps.com/mcp/baton"><img src="https://allmcps.com/api/badge/baton?style=directory" alt="Baton on AllMCPs" /></a>

Technical Specs & Signals

CategoryDeveloper Tools

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

★ Featured

Moxie Docs MCP

MCP & Agent Skills for Automated Documentation, and codebase conventions + context

Explore Server →

Own this project?

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to Baton →Install in Claude Desktop Install in Cursor Install in VS Code