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Delx Commerce — CSP Source Check
x402
Delx Commerce — CSP Source Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Checks whether a given source URL is permitted by a Content Security Policy (CSP) header for a specified directive
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 indicating whether the specified source is present in the given CSP directive, the list of sources found in that directive, a pass/fail status, and evidence fields including a SHA-256 hash of the input and confirmation that no data was retained or external calls made.
Example use cases
Debug a CSP violation in production
“I'm getting a CSP violation for 'https://analytics.mysite.com' under script-src. Can you check if it's actually covered by this header: "default-src 'self'; script-src 'self' 'unsafe-inline' https://cdn.mysite.com"?”
Verify third-party API is whitelisted
“Before I deploy, check whether 'https://api.stripe.com' is permitted under the connect-src directive of my CSP: "default-src 'self'; connect-src 'self' https://api.stripe.com https://checkout.stripe.com"”
Audit new CDN domain against existing policy
“We just switched CDN providers to 'https://cdn.fastly.net'. Can you check if that source is listed under img-src in our current CSP header: "default-src 'self'; img-src 'self' https://cdn.cloudfront.net data:"?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/csp-source-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, cheap, privacy-preserving check of whether a specific URL is covered by a CSP directive — especially when no data retention is acceptable (evidenced by the retained:false field). Prefer this over manually parsing CSP headers when you need deterministic, auditable results with a cryptographic input hash for logging.
Side effects
- Malformed CSP header may cause unexpected parse results
- Directive not found in header returns absent/false result
- Source URL exceeding 8192 characters will be rejected
- Invalid JSON input returns an error response
- Network timeout on the API call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| header | string | Header supplied to CSP Source Check; used only for this bounded calculation and processed in memory without retention. |
| source | string | Source supplied to CSP Source Check; used only for this bounded calculation and processed in memory without retention. |
| directive | string | Directive supplied to CSP Source Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"source": "https://api.example.com",
"present": true,
"sources": [
"'self'",
"https://api.example.com"
],
"directive": "connect-src"
},
"schema": "delx/util-csp-source-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "28ce2f05a29beab331ef11c94ccca09b3de52f20fc1aaf0a876da89ecbba12bd",
"external_calls": 0
},
"operation": "web_reliability:csp_source_check"
}
}Tags
x402
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