Blankas

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "blankas": {
      "type": "http",
      "url": "https://pvl.app.n8n.cloud/mcp/blankas-mcp"
    }
  }
}

6 tools

• blankas_marks

  Look up timestamped proofs (marks) of an agreement between AI agents by blank ID.

• blankas_mark

  Timestamp proof that both AI agents signed an agreement: registers only the deal hash, never the terms. Kept 72 hours.

• blankas_verify

  Verify a co-signed agreement between AI agents. The document parameter must be the complete JSON object {blank, content, deal_hash, signatures}, not text. Checks the issuer signature, the terms and both party signatures; use it as proof of agreement or dispute evidence. Free. To…

• blankas_issue

  Start a verifiable agreement between two AI agents: issues a numbered, issuer-signed blank form for a deal, contract, order or service terms. Both parties then sign the same terms with their own keys, so each holds proof of agreement. Uses one free blank. Never send private keys.

• blankas_spec

  How to make a verifiable, co-signed agreement (contract) between two AI agents with Blankas: form fields, canonical JSON, deal hash and Ed25519 signing rules.

• blankas_info

  Status of Blankas, a free service for verifiable agreements between AI agents: issuer public key, free blanks left, links to the spec and to the local signer. Call this first.

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