Back to A2A Commerce Gateway
Card snapshot
api.greenhelix.net
·
2026-05-15 00:28:29 UTC
·
04106792ff927def2eb0ed26503cc3293f9060fb61ab480c17d81baa2d654f1c
This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.
{
"name": "A2A Commerce Gateway",
"description": "Agent-to-agent commerce infrastructure: billing, payments, escrow, marketplace, identity, messaging, and trust scoring",
"url": "https://api.greenhelix.net",
"version": "1.4.10",
"provider": {
"organization": "Green Helix",
"url": "https://greenhelix.net"
},
"capabilities": {
"streaming": true,
"pushNotifications": false,
"stateTransitionHistory": false
},
"authentication": {
"schemes": [
"bearer"
],
"description": "API key via Authorization: Bearer a2a_{tier}_{key} header. Free tier available (500 credits, 100 req/hr)."
},
"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"
]
}
],
"defaultInputModes": [
"application/json"
],
"defaultOutputModes": [
"application/json"
]
}