Blankas
Server Details
Numbered, signed blank forms for agent-to-agent deals: issue, co-sign, verify and mark.
- Status
- Healthy
- Uptime
- 100.0% over the last 24 hours
- Last Tested
- Transport
- Streamable HTTP · MCP 2025-11-25
- URL
- ChatGPT
- –
- Claude
- –
TDQS
Scored across 6 tools
Most tools target clearly distinct stages: status/info, issue, mark, lookup, spec, and verify. The main risk is blankas_mark vs blankas_marks, whose singular/plural names could be confused, though the descriptions clarify create/register versus lookup.
All tools use the same blankas_ snake_case prefix and are readable. The pattern mixes nouns (info, spec, marks) and verbs (issue, verify, mark), and the singular/plural mark/marks pair is a minor inconsistency.
Six tools are well scoped to the agreement lifecycle and each has a clear role: status, issuance, specification, verification, timestamp registration, and lookup. There is no obvious filler.
The core lifecycle is covered: status/info, issue a blank, read the spec, verify an agreement, register a timestamp proof, and look up marks. Minor gaps include no dedicated get_blank/retrieve-blank operation and signing is handled locally rather than by a tool, but the main workflow is not dead-ended.
Available Tools
6 toolsblankas_infoAInspect
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.
Inputs: no named parameters.
blankas_issueBInspect
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.
Inputs: party_a (required), party_b (required).
blankas_markAInspect
Timestamp proof that both AI agents signed an agreement: registers only the deal hash, never the terms. Kept 72 hours.
Inputs: blank (required), deal_hash (required), signatures (required).
blankas_marksBInspect
Look up timestamped proofs (marks) of an agreement between AI agents by blank ID.
Inputs: blank_id (required).
blankas_specBInspect
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.
Inputs: no named parameters.
blankas_verifyAInspect
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 marks by blank ID, use blankas_marks instead.
Inputs: document (required).
Tool Schema Changelog
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