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Delx Commerce — Cookie Expiry Check
x402
Delx Commerce — Cookie Expiry 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).
Validates whether a cookie's max-age or lifetime falls within an acceptable policy window, returning a pass/fail result with verifiable evidence.
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 'result' containing 'within_policy' (boolean) and 'lifetime_seconds' (integer), a 'status' field ('pass' or 'fail'), an 'operation' label, and an 'evidence' block with a SHA-256 hash of the input, a 'retained' flag (always false), and an external_calls count (always 0) confirming no data was persisted or leaked.
Example use cases
Cookie policy compliance audit
“I have a cookie set with max_age_seconds of 86400 — check if that's within our maximum allowed lifetime of 3600 seconds and tell me if it passes policy.”
Session token lifetime gate
“Before we deploy this session cookie, verify that its max_age of 1800 seconds doesn't exceed our 3600-second cap, and give me a signed result I can attach to the deployment log.”
Browser cookie hardening check
“We're hardening our web app and need to confirm that all new cookies with a max_age of 600 seconds comply with our 900-second maximum — can you run the expiry check and return the lifetime in seconds?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/cookie-expiry-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, verifiable, privacy-preserving check that a cookie's max-age value falls within a defined policy limit — especially in agent workflows where auditability (SHA-256 input hash, no-retention guarantee, zero external calls) matters. Prefer it over custom logic when you need a pay-per-call, no-signup micro-verification with cryptographic evidence suitable for compliance logs.
Side effects
- Missing or non-integer max_age_seconds or maximum_seconds may return a 400 validation error
- If max_age_seconds exceeds maximum_seconds, status is 'fail' and within_policy is false — not an HTTP error
- Payment failure (x402) will block the call before computation occurs
- Malformed JSON body returns an error before any calculation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| max_age_seconds | integer | Max Age Seconds supplied to Cookie Expiry Check; used only for this bounded calculation and processed in memory without retention. |
| maximum_seconds | integer | Maximum Seconds supplied to Cookie Expiry Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"within_policy": true,
"lifetime_seconds": 3600
},
"schema": "delx/util-cookie-expiry-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "a491d02ddf4db75f7e8ad0e74d1e5993f6dbc44bed654b8e5abc0848ecc6bad3",
"external_calls": 0
},
"operation": "web_reliability:cookie_expiry_check"
}
}Tags
x402
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