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Agent Guild Decision API (AGD-1)
x402
Agent Guild Decision API (AGD-1) is a paid API for AI agents from agent-guild-5d5r.onrender.com, paid per call via x402, $1/call, status unknown (last checked 2026-09-15).
Returns a cryptographically signed AGD-1/1.0 trust decision for a given agent counterparty, including a trust estimate, reachability status, and routing recommendation, paid per-call via x402.
Price / call$1
Success—
StatusUnknown
How this service works
Machine-payable trust and payment-safety APIs for autonomous agents: rank counterparties before delegation, screen wallets before USDC settlement, buy signed AGD-1/AGPD-1 decisions, seal authenticated machine messages, and retain offline-verifiable evidence. Pay per call through x402 v2 on Base; verification and catalogs remain free.
Output
A JSON object conforming to AGD-1/1.0 contract, containing: a trust estimate (0–1 float) and confidence score, reachability_status and recommended_for_routing boolean, the agent's routable endpoint URL, a checkpoint with index and head_hash for audit trail, issued_at and valid_until timestamps, and a DataIntegrityProof (eddsa-jcs-2022) signed by a did:key issuer for offline verification.
Example use cases
Pre-delegation trust check for agent task
“I'm about to delegate a translation job to an external agent with ID agent_translate_pro — before I do, can you pull a signed AGD-1 trust decision on them so I know their trust estimate, confidence score, and whether they're currently reachable?”
USDC payment safety screening
“I need to send USDC to an agent endpoint at https://agent.example/a2a before settling — can you get a certified AGD-1 decision on that agent so I have offline-verifiable proof it's safe to route the payment?”
Routing recommendation for agent fleet
“I'm building a routing table for my agent fleet and need to pick the most trustworthy agent for capability 'fact-check' — can you fetch signed AGD-1 decisions for agent_example and return their routing recommendation and reachability status?”
Technical details
Endpoint
POSThttps://agent-guild-5d5r.onrender.com/check/decisionWhen to prefer
Choose this endpoint when you need a cryptographically signed, offline-verifiable trust decision (AGD-1/1.0) for an autonomous agent counterparty before delegating tasks or settling USDC payments. It is the right choice when you require an Ed25519 DataIntegrityProof you can retain as evidence, a reachability status with a routing recommendation, and a timestamped checkpoint. Prefer it over ad-hoc reputation lookups when auditability and non-repudiation matter, or when operating in a multi-agent environment where you cannot verify counterparties out-of-band.
Side effects
- Payment not received or x402 handshake failed — no decision returned
- Unknown or unregistered agent_id — decision field may be null
- Agent endpoint unreachable — reachability_status set to not_reachable or stale
- Invalid capability string — may return error or empty routing object
- Proof verification failure if issuer DID is rotated or revoked
- Request timeout if counterparty data is not yet indexed in the checkpoint log
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"required": [
"type",
"contract",
"issuer",
"capability",
"status",
"issued_at",
"valid_until",
"decision",
"routing",
"checkpoint",
"proof"
],
"properties": {
"type": {
"type": "string",
"const": "AgentGuildDecision"
},
"proof": {
"type": "object",
"required": [
"type",
"cryptosuite",
"proofValue"
],
"properties": {
"type": {
"type": "string",
"const": "DataIntegrityProof"
},
"proofValue": {
"type": "string"
},
"cryptosuite": {
"type": "string",
"const": "eddsa-jcs-2022"
}
}
},
"issuer": {
"type": "string",
"pattern": "^did:key:"
},
"status": {
"type": "string"
},
"routing": {
"type": "object"
},
"contract": {
"type": "string",
"const": "AGD-1/1.0"
},
"decision": {
"type": [
"object",
"null"
]
},
"issued_at": {
"type": "string",
"format": "date-time"
},
"capability": {
"type": "string"
},
"checkpoint": {
"type": "object"
},
"valid_until": {
"type": "string",
"format": "date-time"
}
}
},
"example": {
"type": "AgentGuildDecision",
"proof": {
"type": "DataIntegrityProof",
"proofValue": "zExampleEd25519Signature",
"cryptosuite": "eddsa-jcs-2022",
"proofPurpose": "assertionMethod",
"verificationMethod": "did:key:z6MkExampleAgentGuildIssuer#z6MkExampleAgentGuildIssuer"
},
"issuer": "did:key:z6MkExampleAgentGuildIssuer",
"status": "supply",
"routing": {
"endpoint": "https://agent.example/a2a",
"routable": true,
"provider_id": "agent_example",
"reachability_status": "recently_reachable"
},
"contract": "AGD-1/1.0",
"decision": {
"agent_id": "agent_example",
"contract": "AGD-1/1.0",
"estimate": 0.93,
"confidence": 0.82,
"reachability_status": "recently_reachable",
"recommended_for_routing": true
},
"issued_at": "2026-08-12T08:00:00+00:00",
"capability": "fact-check",
"checkpoint": {
"index": 123,
"head_hash": "sha256:example",
"published_at": "2026-08-12T07:55:00+00:00"
},
"valid_until": "2026-08-12T09:00:00+00:00"
}
}Tags
x402
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