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X402 Delivery Status Check
x402
X402 Delivery Status 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 whether an HTTP delivery status code is among a caller-supplied set of accepted success codes, returning acceptance or rejection with normalized evidence and mismatch reasons for x402 agent delivery flows.
Price / call$0.001
Success—
StatusUnknown
How this service works
X402 Delivery Status Check: X402 Delivery Status Check classifies delivery HTTP status against accepted success codes from bounded caller-supplied values without an external provider. Call X402 Delivery Status 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 X402 Delivery Status Check as versioned…
Output
Returns contract-specific validation results including an explicit accept or reject decision, normalized evidence of the status comparison, and a list of mismatch reasons explaining why the status was or was not within the accepted codes. Response is versioned and stateless — no data is retained.
Example use cases
Gate payment on delivery success
“We got back HTTP status 204 from the agent delivery and our contract accepts [200, 201, 204] — can you confirm this delivery status is acceptable before we release the x402 payment?”
Reject unexpected redirect status
“The agent delivery came back with status 302, but our accepted statuses are only [200, 201]. Check if that's a valid delivery or if we should reject it and hold payment.”
Validate partial-success delivery code
“Our x402 delivery result returned status 206, and the caller says accepted codes are [200, 206, 207]. Can you run the delivery status check and tell me if there are any mismatch reasons before we finalize acceptance?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/x402-delivery-status-checkWhen to prefer
Use this endpoint when you need a deterministic, in-memory, stateless check of an HTTP status code against a caller-defined set of accepted codes within an x402 or agentic delivery pipeline — especially before committing payment or accepting a delivery payload. Prefer this over manual comparisons when you need normalized evidence, mismatch reasons, and an explicit versioned accept/reject verdict suitable for audit trails or contract enforcement.
Side effects
- Status integer outside valid HTTP range may yield unexpected classification results
- Empty accepted_statuses array will always result in rejection
- accepted_statuses array exceeding 256 items will be rejected by schema validation
- Non-integer status values will fail input validation
- Network error reaching the endpoint returns no validation result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| status | integer | Status supplied to X402 Delivery Status Check; used only for this bounded calculation and processed in memory without retention. |
| accepted_statuses | array | Accepted Statuses supplied to X402 Delivery Status Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"status": 200,
"accepted": true,
"accepted_statuses": [
200,
201
]
},
"schema": "delx/util-x402-delivery-status-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "ec66015a70d65b7a2e71745b867a2956516fe4253c9db40194da8e70462fd249",
"external_calls": 0
},
"operation": "delivery_contract:x402_delivery_status_check"
}
}Tags
x402
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