{"slug":"mini-tollbooth-onrender-com-idempotency-6fdd0a","title":"NOT ENFORCEMENT — deterministic idempotency key minting ($0.02)","host":"mini-tollbooth.onrender.com","method":"GET","resource":"https://mini-tollbooth.onrender.com/idempotency","category":"market","description":"NOT ENFORCEMENT — deterministic idempotency key minting ($0.02): hashes your normalized write intent + caller nonce into a retry key and resolves post-timeout state (UNKNOWN_OUTCOME + recommended action). The lane mints the key — the CALLER must attach it; a server that ignores idempotency keys make","price_listed":0.02,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"caller_nonce":"payout-2026-10-05-001","write_intent":"send 5 USDC to 0x8BE8D056d5F0bEF850eC9ed5C4a8d647cBE896C0"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"caller_nonce":{"description":"Disambiguator for genuinely-different writes with identical intent text — optional, generated if omitted.","type":"string"},"transport_evidence":{"description":"{outcome, endpoint, elapsed_ms} — what failed, optional.","type":"object"},"write_intent":{"description":"The write the key covers — required.","type":"string"}},"required":["write_intent"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"NOT ENFORCEMENT — deterministic idempotency key minting ($0.02): hashes your normalized write intent + caller nonce into a retry key and resolves post-timeout state (UNKNOWN_OUTCOME + recommended action). The lane mints the key — the CALLER must attach it; a server that ignores idempotency keys makes any key decoration. Toll: $0.02 USDC on Base or Solana.","last_updated":"2026-10-05T20:10:58.495Z","schemes":["exact"]}