AOTrust Notarization & Evidence Server

Cryptographic proof of existence for AI agents. Base x402, NEAR anchored. Free tier.

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": {
    "aotrust-notarization-evidence-server": {
      "command": "npx",
      "args": [
        "-y",
        "aotrust-notarization-evidence-server"
      ]
    }
  }
}

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

Documentation Overview

AOTrust — Cryptographic Proof of Existence for AI Agents

AOTrust issues PDRs (Provenance Data Records) — 239-byte cryptographic receipts proving a digital artifact existed at a specific time. $0.01 USDC on Base via x402. Anchored daily to NEAR blockchain. No account needed. Supports ordinary (v0x03) and bilateral (v0x04) signatures.

Quickstart

bash

# 1. Compute SHA-256 hash of your artifact
HASH=$(echo -n "Hello AOTrust" | sha256sum | cut -d' ' -f1)

# 2. Request notarization → get 402 payment details
curl -X POST https://api.aotrust.link/notarize \
  -H "Content-Type: application/json" \
  -d "{\"work_hash\":\"$HASH\",\"agent_sig\":\"\",\"agent_pubkey\":\"\"}"

# 3. Pay $0.01 USDC on Base (EIP-3009), then POST with x-payment header
# Full example: see SKILL.md → "Step 3: Pay"

For full EIP-3009 signing code (Python + ethers.js examples), see SKILL.md.

Interfaces

Interface	Best for	Auth
HTTP API	Developers, scripts, CI/CD	x402 payment (no API key needed)
MCP	AI agents (Claude, Cursor)	OAuth 2.1 PKCE

Endpoints:

API: https://api.aotrust.link/notarize
MCP: https://api.aotrust.link/mcp
Verify: https://verify.aotrust.link
Docs: https://docs.aotrust.link

PDR Specification & Tools

pdr-spec.md — PDR v2.3/v2.4 binary format (Internal 193B + External 239B, ordinary + bilateral)
pdr_parser.py — standalone parser, zero dependencies, offline verification
aotrust-notarize/SKILL.md — full integration guide for AI agents

Comparison

Feature	AOTrust	Chainlink	OpenTimestamps	Notary.fyi
Price/PDR	$0.01	$0.25+	Free (slow)	$0.50+
Payment rail	x402 USDC	LINK	Bitcoin TX	Stripe
PDR format	239B binary	Oracle data	OTS file	PDF
AI agent native	MCP + HTTP	No	No	No
Blockchain anchor	NEAR (daily)	Ethereum	Bitcoin	None
Offline verify	Yes (pdr_parser.py)	No	Yes	No

GitHub Action

Notarize build artifacts or AI-generated files directly in CI/CD — free, no wallet needed.

yaml

- uses: GitSerge-crypto/aotrust-skills/action@v1
  with:
    files: dist/*

Outputs: shield_id, verify_url, pdr_b64. Results appear in $GITHUB_STEP_SUMMARY as a markdown table with verification links.

Example workflow

yaml

name: Release
on:
  release:
    types: [published]

jobs:
  notarize:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: GitSerge-crypto/aotrust-skills/action@v1
        with:
          files: dist/*
      - name: Show shield ID
        run: echo "Shield ID: ${{ steps.notarize.outputs.shield_id }}"

License

MIT

Related MCP Servers

View all in Finance & Fintech View all alternatives

Reviews

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

Frequently Asked Questions about AOTrust Notarization & Evidence Server

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "aotrust-notarization-evidence-server": { "command": "npx", "args": ["-y", "AOTrust Notarization & Evidence Server"] } }

AllMCPs Directory Badge

Full Badge Customizer

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:

Live Dynamic SVG Preview

AOTrust Notarization & Evidence Server AllMCPs Directory Badge

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/aotrust-notarization-evidence-server?style=directory)](https://allmcps.com/mcp/aotrust-notarization-evidence-server)

HTML Embed

<a href="https://allmcps.com/mcp/aotrust-notarization-evidence-server"><img src="https://allmcps.com/api/badge/aotrust-notarization-evidence-server?style=directory" alt="AOTrust Notarization & Evidence Server on AllMCPs" /></a>

Technical Specs & Signals

CategoryFinance & Fintech

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.

★ Spotlight Slot

Feature Your MCP Server

Get maximum visibility for your server across our directory, search results, and detail pages.

Spotlight Your Server

Own this project?

This directory is pre-filled from public sources. Claim via GitHub README, site badge, or DNS TXT to unlock edit access and the Official badge and attach your website — proof is checked automatically, then reviewed by our team.

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 💰 Finance & Fintech →Best MCP servers for Finance & Fintech →Alternatives to AOTrust Notarization & Evidence Server →Install in Claude Desktop Install in Cursor Install in VS Code

Documentation Overview

AOTrust — Cryptographic Proof of Existence for AI Agents

Quickstart

bash

# 1. Compute SHA-256 hash of your artifact
HASH=$(echo -n "Hello AOTrust" | sha256sum | cut -d' ' -f1)

# 2. Request notarization → get 402 payment details
curl -X POST https://api.aotrust.link/notarize \
  -H "Content-Type: application/json" \
  -d "{\"work_hash\":\"$HASH\",\"agent_sig\":\"\",\"agent_pubkey\":\"\"}"

# 3. Pay $0.01 USDC on Base (EIP-3009), then POST with x-payment header
# Full example: see SKILL.md → "Step 3: Pay"

For full EIP-3009 signing code (Python + ethers.js examples), see SKILL.md.

Interfaces

Interface	Best for	Auth
HTTP API	Developers, scripts, CI/CD	x402 payment (no API key needed)
MCP	AI agents (Claude, Cursor)	OAuth 2.1 PKCE

Endpoints:

API: https://api.aotrust.link/notarize
MCP: https://api.aotrust.link/mcp
Verify: https://verify.aotrust.link
Docs: https://docs.aotrust.link

PDR Specification & Tools

pdr-spec.md — PDR v2.3/v2.4 binary format (Internal 193B + External 239B, ordinary + bilateral)
pdr_parser.py — standalone parser, zero dependencies, offline verification
aotrust-notarize/SKILL.md — full integration guide for AI agents

Comparison

Feature	AOTrust	Chainlink	OpenTimestamps	Notary.fyi
Price/PDR	$0.01	$0.25+	Free (slow)	$0.50+
Payment rail	x402 USDC	LINK	Bitcoin TX	Stripe
PDR format	239B binary	Oracle data	OTS file	PDF
AI agent native	MCP + HTTP	No	No	No
Blockchain anchor	NEAR (daily)	Ethereum	Bitcoin	None
Offline verify	Yes (pdr_parser.py)	No	Yes	No

GitHub Action

Notarize build artifacts or AI-generated files directly in CI/CD — free, no wallet needed.

yaml

- uses: GitSerge-crypto/aotrust-skills/action@v1
  with:
    files: dist/*

Outputs: shield_id, verify_url, pdr_b64. Results appear in $GITHUB_STEP_SUMMARY as a markdown table with verification links.

Example workflow

yaml

name: Release
on:
  release:
    types: [published]

jobs:
  notarize:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: GitSerge-crypto/aotrust-skills/action@v1
        with:
          files: dist/*
      - name: Show shield ID
        run: echo "Shield ID: ${{ steps.notarize.outputs.shield_id }}"

License

MIT

Frequently Asked Questions about AOTrust Notarization & Evidence Server