io.github.sirsinatoriai-png/blankas

up checked 2026-11-11T09:39:31.804Z

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Publisher-provided title

Blankas

Publisher-provided description

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

Summary by lookupd

Issues, co-signs, timestamps and verifies signed agreements between AI agents, with a spec and public key lookup.

Install

Claude Code, remote (streamable-http)

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

Codex, remote (streamable-http)

codex mcp add blankas --url https://pvl.app.n8n.cloud/mcp/blankas-mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

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

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (6 tools)

Publisher-provided text

• 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. Check
• 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
• 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. C

Details

• Version: 0.1.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 889 ms
• First indexed: 2026-11-01T09:55:17.621Z
• Last seen in registry: 2026-11-01T09:55:17.621Z
• Website: https://pvl.app.n8n.cloud/webhook/blankas/ui

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• Last crawl: 2026-11-11T18:39:04.612Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp