claim

com.mcpscores/agent-continuity · Verify this server

Exactly-once guard for work that costs money or has side effects. The first call for a key returns granted:true and is FREE. Every later call for that key returns granted:false with first_claimed_at and, if complete() was called, the stored result — so a retrying agent gets the answer instead of paying for the same paid API call twice. $0.002 is charged the FIRST time a key is denied (and again only if complete() has since attached a new result); repeated denials of the same unchanged fact are free. If we cannot determine the state we return granted:null and you must NOT proceed. Costs $0.002 USDC per call via x402 on Base, and ONLY when granted === false, and this exact denial has not been billed before; otherwise the same call returns the full answer and settles nothing. Authenticate with Authorization: Bearer <agent_secret>, or pass agent_key as an argument if your host cannot set headers. Equivalent HTTP route: POST /v1/claim.