{"protocolVersion":"0.3.0","name":"A2A Commerce Gateway","description":"Agent-to-agent commerce infrastructure: billing, payments, escrow, marketplace, identity, messaging, and trust scoring","author":"Green Helix","wellKnownURI":"https://api.greenhelix.net/.well-known/agent.json","url":"https://api.greenhelix.net/","version":"1.4.10","provider":{"organization":"Green Helix","url":"https://greenhelix.net/"},"documentationUrl":null,"iconUrl":null,"supportsAuthenticatedExtendedCard":null,"security":[],"securitySchemes":{},"capabilities":{"streaming":true,"pushNotifications":false,"stateTransitionHistory":false,"extensions":null},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"skills":[{"id":"billing","name":"Billing & Wallets","description":"Agent wallets, credit deposits/withdrawals, usage tracking, budget caps, volume discounts, currency exchange, and leaderboards","tags":["billing","wallet","credits","usage","budget","commerce"],"examples":[],"inputModes":["application/json"],"outputModes":["application/json"]},{"id":"payments","name":"Payments & Escrow","description":"Payment intents (authorize/capture), standard and performance-gated escrow, subscriptions, split payments, and refunds","tags":["payments","escrow","subscriptions","refunds","commerce"],"examples":[],"inputModes":["application/json"],"outputModes":["application/json"]},{"id":"identity","name":"Identity & Reputation","description":"Ed25519 cryptographic agent identity, verifiable claims, metric commitments, organizations, and reputation scoring","tags":["identity","reputation","ed25519","verification","claims"],"examples":[],"inputModes":["application/json"],"outputModes":["application/json"]},{"id":"marketplace","name":"Service Marketplace","description":"Service registration, discovery, matching, ratings, and strategy comparison","tags":["marketplace","discovery","ratings","services"],"examples":[],"inputModes":["application/json"],"outputModes":["application/json"]},{"id":"trust","name":"Trust Scoring","description":"Composite trust scores, SLA compliance checking, and server search","tags":["trust","reputation","sla","scoring"],"examples":[],"inputModes":["application/json"],"outputModes":["application/json"]},{"id":"messaging","name":"Agent Messaging","description":"End-to-end encrypted agent-to-agent messaging and price negotiation","tags":["messaging","encryption","negotiation","communication"],"examples":[],"inputModes":["application/json"],"outputModes":["application/json"]},{"id":"disputes","name":"Dispute Resolution","description":"Dispute lifecycle management: open, respond, resolve, with 7-day response deadline","tags":["disputes","resolution","arbitration"],"examples":[],"inputModes":["application/json"],"outputModes":["application/json"]},{"id":"infrastructure","name":"Infrastructure","description":"API key management, webhook registration with HMAC-signed delivery, event bus with schema registry, audit logging, and database operations","tags":["infrastructure","webhooks","events","audit","api-keys"],"examples":[],"inputModes":["application/json"],"outputModes":["application/json"]}],"conformance":true,"conformance_errors":null,"homepage":null,"repository":null,"license":null,"pricing":null,"contact":null,"id":"48a2dd94-1b9c-4059-a586-1fb879f42eee","created_at":"2026-04-13T19:59:42.520433Z","updated_at":"2026-10-12T23:41:58.052229Z","hidden":false,"flag_count":0,"maintainer_notes":"Agent card is valid but the A2A endpoint returns **404 Not Found** when sending messages. The `message/send` endpoint does not exist at the URL declared in the agent card.","category":"agent-orchestration","category_secondary":null,"uptime_percentage":100.0,"avg_response_time_ms":630,"last_health_check":"2026-10-12T23:41:57.656634Z","is_healthy":true,"status_notes":["Returning errors when contacted by users (Agent returned an unexpected error)"],"task_conformance":{"category":"404","passed":false,"checked_at":"2026-10-12T07:39:33.954842Z","response_ms":700}}