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Agent Result Envelope Check
x402
Agent Result Envelope Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-19).
Validates an agent result object against schema, status, and data/error envelope rules to produce an explicit accept or reject decision before payment or delivery acceptance.
Price / call$0.001
Success—
StatusUnknown
How this service works
Agent Result Envelope Check: Agent Result Envelope Check checks a generic agent result for schema, status, and data or error from bounded caller-supplied values without an external provider. Call Agent Result Envelope Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for Agent Result Envelope Check as v…
Output
Returns contract-specific validation checks, normalized evidence, an explicit accept or reject status, and a list of mismatch reasons explaining why a result passed or failed envelope validation.
Example use cases
Pre-payment x402 result gate
“I just received an agent result for an x402 job — before I release payment, check this result object for schema validity, status, and data completeness and tell me if I should accept or reject it.”
Debugging malformed agent response
“My agent pipeline returned a result but I'm not sure if the envelope is well-formed — can you run an envelope check and show me any mismatch reasons or errors?”
Automated delivery acceptance guard
“I'm building an agent workflow that auto-accepts deliveries — validate this incoming result object against the envelope rules and only proceed if it comes back as accepted.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/agent-result-envelope-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, local, in-memory validation of an agent result envelope before committing to payment or accepting a delivery — especially in x402 workflows where accepting a bad result has financial consequences. Prefer this over manual inspection when you need structured mismatch reasons and normalized evidence rather than raw schema diff.
Side effects
- Result object exceeds maxProperties limit of 128 — returns validation error
- Malformed or missing required envelope fields cause schema rejection
- Caller-supplied result contains inconsistent status and data fields — surfaces as mismatch reasons
- Empty result object passed — may return rejection with no substantive evidence
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| result | object | Result supplied to Agent Result Envelope Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"valid": true,
"missing_fields": [],
"has_data_or_error": true
},
"schema": "delx/util-agent-result-envelope-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "c30da2c0725b81b5ab82ab69c3268cdbd81eff1c80cf99cf2fe58603f665419f",
"external_calls": 0
},
"operation": "delivery_contract:agent_result_envelope_check"
}
}Tags
x402
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