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Delx Commerce — CORS Origin Check
x402
Delx Commerce — CORS Origin 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 whether a given origin is allowed by a CORS policy, checking against a list of permitted origins and credential requirements.
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 the normalized origin, a boolean indicating whether it is allowed, and whether credentials are permitted. Also includes a schema identifier, a pass/fail status, and an evidence block containing a SHA-256 hash of the input, a flag confirming no data is retained, and a count of external calls made (always 0, meaning fully in-memory computation).
Example use cases
API gateway CORS validation
“I need to check whether requests from https://dashboard.myapp.com are permitted by my CORS policy — the allowed origins are ['https://dashboard.myapp.com', 'https://api.myapp.com'] and credentials should be true.”
Debugging cross-origin errors
“My frontend at https://staging.mysite.io keeps getting CORS errors. Can you verify if that origin is in my allowed list ['https://mysite.io', 'https://www.mysite.io'] with credentials set to false?”
Security audit of CORS whitelist
“I'm auditing our CORS setup — please check if https://partner.vendor.com would be allowed through our policy with allowed origins ['https://trusted.vendor.com', 'https://partner.vendor.com'] and credentials enabled.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/cors-origin-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a trustless, pay-per-use, verifiable CORS origin validation with no signup or persistent data storage. Ideal for AI agents or automated pipelines that need on-demand CORS checks with cryptographic evidence of computation, especially when you want to avoid standing up your own CORS logic or need auditability via input hash. Prefer over self-hosted solutions when you need verifiable, stateless, zero-retention computation with micro-payment billing.
Side effects
- Invalid or malformed origin URL may produce unexpected results
- Allowed list exceeding 256 items will be rejected
- Payment failure via x402 protocol will block the request
- Origin string exceeding 8192 characters will be rejected
- Missing required fields may result in validation errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| origin | string | Origin supplied to CORS Origin Check; used only for this bounded calculation and processed in memory without retention. |
| allowed | array | Allowed supplied to CORS Origin Check; used only for this bounded calculation and processed in memory without retention. |
| credentials | boolean | Credentials supplied to CORS Origin Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"origin": "https://app.example.com/",
"allowed": true,
"credentials": true
},
"schema": "delx/util-cors-origin-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "502a62c83d87812324c4b1fe1a2a0df77db850e0a6e49fef68313499e8d02d82",
"external_calls": 0
},
"operation": "web_reliability:cors_origin_check"
}
}Tags
x402
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