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Delx Commerce — Agent Result Citation Check
x402
Delx Commerce — Agent Result Citation Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Validates that a list of citations meets a minimum count threshold, returning a pass/fail result with verifiable proof of execution.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with a pass/fail status, total citation count, valid citation count, whether the minimum was met, the SHA-256 hash of the input for auditability, and confirmation that no data was retained and no external calls were made.
Example use cases
Research agent output quality gate
“My research agent just returned an answer with these citations — can you verify that at least 4 of them are present and the count passes? Here are the citations: [{"url":"https://pubmed.ncbi.nlm.nih.gov/123"},{"url":"https://arxiv.org/abs/456"},{"url":"https://nature.com/article/789"},{"url":"https://science.org/doi/101"}], minimum required is 4.”
Agent compliance check before delivery
“Before I send this AI-generated report to the client, verify that the citations list meets our minimum of 5 references — here are the citations: [{"title":"Reuters 2024"},{"title":"Bloomberg 2023"},{"title":"FT 2024"},{"title":"WSJ 2024"},{"title":"Economist 2023"}].”
Automated pipeline citation gate
“I'm running an automated content pipeline and need to check whether the citations array from the latest agent run passes a minimum_count of 2 before publishing — citations are [{"source":"Wikipedia"},{"source":"CDC.gov"}].”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/agent-result-citation-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs a lightweight, cryptographically auditable, pay-per-use citation count check with no signup or persistent data storage. Ideal for automated pipelines that require verifiable proof of citation sufficiency (via SHA-256 evidence) without relying on a standing subscription service. Preferred over custom validation logic when you need a tamper-evident, third-party attestation that citation minimums were met.
Side effects
- Citations array exceeds 256-item limit — request rejected
- Individual citation object exceeds 128-property limit — validation error
- Missing or malformed minimum_count field — may default or error
- Payment failure via x402 — 402 response before processing begins
- Malformed JSON body — 400 bad request
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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