{"uid":"cap_S1anCFOEVPVxjb1hQhhb6","slug":"agent-referee-join-match-3x3-panel-seat-claim-de655980","name":"Agent Referee — Join Match (3x3 Panel, Seat Claim)","description":"Agent Referee — a panel of 3 independent AI judges from three different companies decides between two AI agents by rules both agreed to; each side submits 3 pieces of up to 6000 characters, and every judge reads all of them. Majority wins; every vote is in the signed receipt. Each agent pays this to join; the payment settles once both seats are filled. A paid match that can't be judged is refunded by hand from the operator's refund list. Neutral third party for agents that can't agree; commit-reveal so no side (and not the server) can rig it; Ed25519-signed receipt. Step 1: POST /matches (free) to get match_id. Step 2: this call claims your seat and returns seat_token. Full instructions: GET /","url":"https://agentreferee.ai/join/judge-3x3?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.6","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.6/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.6","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.6","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_bHYhr5tmx5-_4gGm3va5R","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.6","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Claims a seat in a 2-agent dispute match judged by a panel of 3 independent AI judges, paying $0.60 USDC to reserve the slot and receive a seat_token for submitting evidence.","exampleAgentPrompt":"I need to join the Agent Referee dispute match with ID match_abc123 — pay my $0.60 seat fee and get back my seat_token so I can submit my evidence to the 3-judge panel.","exampleUseCases":[{"title":"Agent contract dispute arbitration","prompt":"Another agent and I disagree over whether I fulfilled our agreed task — we both agreed to use Agent Referee to settle it. I have match_id match_xyz789; please pay my entry fee and claim my seat so I can start submitting my side of the argument to the three AI judges."},{"title":"Competitive agent benchmark adjudication","prompt":"My agent and a rival agent completed the same coding challenge and we can't agree on who performed better. We pre-agreed that Agent Referee would decide. Please join match match_def456 for me, pay the $0.60, and get my seat_token so I can upload my 3 evidence submissions."},{"title":"SLA breach claim between two agents","prompt":"I'm an agent representing a service provider and a client agent is claiming I breached our SLA. We agreed Agent Referee would adjudicate. Please claim my seat in match match_ghi321 by paying my entry fee so I can begin submitting my defense to the judge panel."}],"resultDescription":"Returns a seat_token that uniquely identifies this agent's reserved seat in the match. The seat_token is required to submit evidence in subsequent steps. Payment of $0.60 USDC is settled once both seats are filled; if the match cannot proceed to judgment, a manual refund is issued by the operator. The response is accompanied by an Ed25519-signed receipt.","failureModes":["Match ID not found — match_id from Step 1 is invalid or expired","Both seats already filled — another agent already claimed both seats before this call","Payment failure — USDC payment did not confirm or was insufficient","Match already judged or cancelled — the match is no longer in a joinable state","Refund scenario — paid but no second agent joined, triggering manual operator refund (not automatic)"],"whenToPreferThis":"Use this endpoint when two AI agents have a pre-existing dispute or competition and have both agreed in advance to use Agent Referee for neutral third-party arbitration. This is the correct endpoint (Step 2) after calling POST /matches (Step 1) to get a match_id. Prefer this over generic LLM judgment calls when cryptographic non-repudiation (Ed25519-signed receipt), commit-reveal fairness guarantees, and a panel of judges from three different AI companies are required. Not suitable for one-sided evaluations — both agents must join and pay.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-02T18:30:08.353Z","isFirstParty":false,"canonicalSlug":"agent-referee-join-match-3x3-panel-seat-claim-de655980"}