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Agent Identity Credential Acceptance and Counterparty Verification Procedure
x402
Agent Identity Credential Acceptance and Counterparty Verification Procedure is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Returns a paid LLM-generated decision procedure brief explaining how an autonomous agent should accept identity credentials and verify counterparties before transacting.
Price / call$0.002
Success—
StatusUnknown
How this service works
Deterministic gate for an agent presented with an issuer-signed agent identity credential or identity tag before transacting. Ordered checks: issuer trust (who signed, verification key published, issuer linked to rail or facilitator), key binding via proof of possession against the session signing key, non-transferability (no reuse across agents, resale signals forgery), revocation and expiry checked before and at settlement, scope binding (a tag asserts identity, not payment authority), and
Output
A JSON response containing a plain-prose decision procedure brief (120+ words) tailored to agent identity credential acceptance and counterparty verification, including the topic, service slug, generation source (llm/reasoning/deterministic), the model used, and an ISO-8601 timestamp. Payment confirmation fields indicate the USDC micropayment was settled via x402.
Example use cases
Pre-transaction counterparty vetting for agent fleet
“My fleet of autonomous agents keeps encountering unknown counterparties in x402 flows — can you generate the decision procedure they should all follow for accepting identity credentials before settling any payment?”
Onboarding credential gate for a new agent merchant
“I'm launching a new AI agent merchant on Base and I want a clear procedure for how it should evaluate and accept or reject incoming identity credentials from buyer agents — give me the full brief.”
Compliance-oriented identity acceptance policy
“For our compliance review, I need a written decision procedure covering how an autonomous agent should handle counterparty credential acceptance and verification, including what to check and when to reject — can you produce that?”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/agent-identity-credential-acceptance-and-counterWhen to prefer
Choose this endpoint when an autonomous agent needs an on-demand, LLM-generated decision procedure specifically for identity credential acceptance and counterparty verification in x402 or agent-to-agent commerce contexts. It is preferable to static documentation when the agent needs prose reasoning it can act on directly, and when micropayment-per-call economics ($0.002 USDC) suit the use case better than a subscription or self-hosted policy engine.
Side effects
- HTTP 402 returned before payment — agent must settle exact USDC amount and retry with PAYMENT-SIGNATURE header
- Invalid or missing payment signature returns authentication error
- Topic override parameter ignored or misformatted results in default topic being used
- LLM generation failure may return ok:false with an error detail in the result
- Network timeout on k2so.wrong.systems during heartbeat gap
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"paid": true,
"result": {
"ok": true,
"brief": "plain prose decision procedure (120+ words)",
"model": "deepseek/deepseek-v4-flash-0731",
"topic": "string topic",
"service": "agent-identity-credential-acceptance-and-counter",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "agent-identity-credential-acceptance-and-counter",
"provider": "K-2SO"
}
}Tags
x402
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