{"service":"Umpire","currency":"USDC","payment_protocol":"x402","products":[{"id":"reputation.read","endpoint":"GET https://umpire.vimabrosta.com/v1/reputation?merchant=0x...","price":"$0.01","summary":"Signed reputation report for a merchant wallet; only payment verified feedback counts."},{"id":"verdict.witness","endpoint":"POST https://umpire.vimabrosta.com/v1/verdicts/witness","price":"$0.25","summary":"One live URL probe with a signed observation of what was seen, synchronous signed verdict. Proof against false success."},{"id":"verdict.basic","endpoint":"POST https://umpire.vimabrosta.com/v1/verdicts/basic","price":"$1.00","summary":"Deterministic checks on a submitted deliverable, synchronous signed verdict."},{"id":"verdict.probe","endpoint":"POST https://umpire.vimabrosta.com/v1/verdicts/probe","price":"$2.00","summary":"Basic checks plus up to three live URL probes, synchronous signed verdict."},{"id":"verdict.sworn","endpoint":"POST https://umpire.vimabrosta.com/v1/verdicts/sworn","price":"$5.00","summary":"Two spaced passes of all checks; webhook or poll for the signed final verdict."}],"free":["POST https://umpire.vimabrosta.com/v1/feedback - submit payment verified feedback (needs payer wallet signature)","GET https://umpire.vimabrosta.com/v1/verdicts/{id} - verdict status and document (Bearer secret)","GET https://umpire.vimabrosta.com/v1/find?spec_hash=&webhook= - recover lost sworn verdict ids","POST https://umpire.vimabrosta.com/v1/validate - pre-flight a spec and deliverable without paying","GET https://umpire.vimabrosta.com/v1/quote - machine readable pricing","GET https://umpire.vimabrosta.com/.well-known/umpire-key.json - signature verification key","GET https://umpire.vimabrosta.com/healthz - service health"],"notes":["Payment is one round trip: an unpaid request returns HTTP 402 whose accepts array lists every rail enabled on this deployment (USDC on Base always; the Solana rail, which also accepts native SOL, when configured). Pay one option and retry the identical request with the X-PAYMENT header. The exact rail list is in /llms.txt and /.well-known/x402.","Malformed specs and policy violating URLs are rejected before settlement; you are not charged for a request that cannot run.","Every paid response is an Ed25519 signed document verifiable against /.well-known/umpire-key.json without trusting the bearer.","Umpire only ever reads public URLs politely; it never purchases, logs in, or bypasses any control, and it holds no funds and no keys to any wallet."]}