ProofCore Notary (Free & Zero-Auth)

Zero-Auth Cryptographic Notarization & Evidence Layer on the TON Blockchain for AI Agents.

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What it can do

  • Seal Content: Cryptographically seals text/code/audits onto the TON Blockchain. Returns an immutable proof and citation badge.
  • Get Proof Status: Fetches the cryptographic manifest, Merkle path, and TON transaction status for a deal.
  • Verify Content: Programmatically verify a sealed deal (Agent-to-Agent). Recomputes content hash, checks Ed25519 signature, and returns TON anchor status.

What data it sees

Do you need an account

No: the server works without sign-in

Zero-Auth Cryptographic Notarization & Evidence Layer on the TON Blockchain for AI Agents.

🛡️ Why ProofCore?

  • 100% Free & Zero-Auth: 100 req/hour free tier. No API keys, subscriptions, or wallets required.
  • Instant Ed25519 Attestation: Real-time server-signed cryptographic receipts.
  • Zero-Storage: Raw payloads are never stored. Only SHA-256 Merkle hashes are anchored on-chain.
  • Zero Vendor Lock-in: Download autonomous Offline Evidence ZIP packages containing standalone Python/HTML verifiers.
  • Agent-to-Agent Verification: Programmatically verify outputs from other AI agents.

🛠 Tools (4):

  • seal_content: Cryptographically commit text/audits to TON Blockchain with Ed25519 signature.
  • get_proof_status: Query blockchain confirmation, Merkle root, and transaction hash.
  • verify_content: Programmatically verify a sealed deal (hash match + Ed25519 signature + TON anchor).
  • get_public_key: Fetch notary Ed25519 public key for offline verification.

How to connect

How to connect ProofCore Notary (Free & Zero-Auth) to Claude

The server address to paste into Claude settings:

https://notary--proofcore-org.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect ProofCore Notary (Free & Zero-Auth) to ChatGPT

The server address to paste into ChatGPT settings:

https://notary--proofcore-org.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect ProofCore Notary (Free & Zero-Auth) to Cursor

The server address to paste into Cursor settings:

https://notary--proofcore-org.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (4)

Raw names from tools/list. Only developers need these.

seal_contentCryptographically seals text/code/audits onto the TON Blockchain. Returns an immutable proof and citation badge.
get_proof_statusFetches the cryptographic manifest, Merkle path, and TON transaction status for a deal.
verify_contentProgrammatically verify a sealed deal (Agent-to-Agent). Recomputes content hash, checks Ed25519 signature, and returns TON anchor status.
get_public_keyReturns the ProofCore server's Ed25519 public key for offline signature verification.