All servers · AI models & agents

Blankas

io.github.sirsinatoriai-png/blankas · v0.1.0

Measured by MCP Station

Description written by the publisher, not verified

Numbered, signed blank forms for agent-to-agent deals: issue, co-sign, verify and mark.

Connect

claude mcp add --transport http blankas https://pvl.app.n8n.cloud/mcp/blankas-mcp

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

Tools as reported by the server

• 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 look up timestamped
• 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.

Tool changes

• 2026-10-24: blankas_marks, blankas_mark, blankas_verify, blankas_issue, blankas_spec, blankas_info
• 2026-10-21: blankas_marks, blankas_mark, blankas_verify, blankas_issue, blankas_spec, blankas_info

Website · JSON · Text for agents · Registry updated 2026-10-20