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Cookie Security Check
x402
Cookie Security Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Validates cookie security attributes (Secure, HttpOnly, SameSite) against a caller-defined policy and returns a deterministic pass/advisory verdict
Price / call$0.001
Success—
StatusUnknown
How this service works
Cookie Security Check: Cookie Security Check checks Secure, HttpOnly, and SameSite attributes against policy from bounded caller-supplied values without an external provider. Call Cookie Security Check before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for Cookie Security Check as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stateless…
Output
Returns versioned deterministic JSON containing: normalized evidence extracted from the Set-Cookie header (Secure, HttpOnly, SameSite attribute values), a computed security finding describing any policy violations, and an explicit pass or advisory status indicating whether the cookie meets the caller-supplied policy requirements.
Example use cases
Pre-cache cookie policy gate
“Before I cache this web response, validate the Set-Cookie header 'auth=xyz; Secure; HttpOnly; SameSite=None' — I require Secure and HttpOnly to be set, and SameSite must be either 'Strict' or 'Lax', not 'None'.”
Third-party API response audit
“I just got a response from an external API and the Set-Cookie header is 'token=abc; Path=/; SameSite=Lax'. Check whether it passes my policy: Secure is required, HttpOnly is required, and only Strict or Lax are acceptable SameSite values.”
Redirect safety check for cookies
“Before I follow this redirect, can you validate the cookie in the response header 'sid=def456; Secure; SameSite=Strict' against a policy that requires Secure but does not require HttpOnly, and allows any SameSite value?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/cookie-security-checkWhen to prefer
Choose this endpoint when you need a lightweight, stateless, deterministic validation of cookie security attributes against a caller-defined policy — without any external dependencies or data retention. Ideal for agents that must gate on cookie compliance before caching, redirecting, retrying, or accepting a web response. Prefer this over custom parsing logic when you need normalized evidence and an explicit pass/advisory verdict in a consistent JSON format.
Side effects
- Malformed or missing Set-Cookie header may result in parsing errors or incomplete evidence
- Header exceeding 8192 character limit will be rejected
- Invalid or unsupported SameSite values in allowed_same_site list may produce unexpected advisory results
- Boolean fields (require_secure, require_http_only) omitted default to unchecked policy — may produce lenient results if not explicitly set
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| header | string | Header supplied to Cookie Security Check; used only for this bounded calculation and processed in memory without retention. |
| require_secure | boolean | Require Secure supplied to Cookie Security Check; used only for this bounded calculation and processed in memory without retention. |
| allowed_same_site | array | Allowed Same Site supplied to Cookie Security Check; used only for this bounded calculation and processed in memory without retention. |
| require_http_only | boolean | Require HTTP Only supplied to Cookie Security Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"name": "sid",
"attributes": {
"path": "/",
"secure": true,
"httponly": true,
"samesite": "Lax"
},
"value_length": 3,
"secure_policy_passed": true
},
"schema": "delx/util-cookie-security-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "b2535750ee2a8d64e7fa26e4f6b035b8925174e765e5275f7a364bd9d4e021dc",
"external_calls": 0
},
"operation": "web_reliability:cookie_security_check"
}
}Tags
x402
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