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Agent Result Citation Check
x402
Agent Result Citation Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Validates citation objects in agent results by checking for required URL and title fields, returning acceptance/rejection status with mismatch reasons and normalized evidence.
Price / call$0.001
Success—
StatusUnknown
How this service works
Agent Result Citation Check: Agent Result Citation Check checks bounded citation objects for URL and title fields from bounded caller-supplied values without an external provider. Call Agent Result Citation 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 Citation Check as versioned de…
Output
Returns contract-specific validation checks, normalized citation evidence, a list of mismatch reasons for any failing citations, and an explicit acceptance or rejection status indicating whether the supplied citations meet the required criteria.
Example use cases
Pre-payment citation gating
“I just got back an agent result with 8 citations before I pay the x402 invoice — can you run a citation check on all of them to make sure every citation has a URL and a title, and that there are at least 5 valid ones?”
Minimum citation count enforcement
“This research agent returned a report with citations but I need at least 4 of them to be well-formed with URL and title. Can you validate these citation objects and tell me if the delivery should be accepted or rejected?”
Agentic pipeline citation audit
“Our pipeline received a batch of 12 citation objects from an external agent — please verify each one has both a URL and a title field, flag any mismatches, and give me a clear accept or reject verdict before we proceed.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/agent-result-citation-checkWhen to prefer
Use this endpoint when you need a lightweight, in-memory, stateless check of citation objects before accepting or paying for an x402 agent delivery. Prefer it over manual validation when you need normalized evidence, explicit accept/reject verdicts, and mismatch reasons in a single call without retaining data or calling external providers.
Side effects
- Citations array exceeds 256-item limit — request rejected
- Citation objects exceed 128-property limit — rejected or trimmed
- minimum_count not met — result is rejection with mismatch reasons
- Malformed input structure — schema validation error
- Missing required fields in citation objects — flagged as mismatches with rejection status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| citations | array | Citations supplied to Agent Result Citation Check; used only for this bounded calculation and processed in memory without retention. |
| minimum_count | integer | Minimum Count supplied to Agent Result Citation Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"passed": true,
"total_count": 1,
"valid_count": 1,
"minimum_count": 1
},
"schema": "delx/util-agent-result-citation-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "f587a82bccbf27d7d465be830d9cd02c7ff7bdd1c8f296f294dbfa2a398f1d00",
"external_calls": 0
},
"operation": "delivery_contract:agent_result_citation_check"
}
}Tags
x402
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