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Delx JWT Expiry Seconds Checker
x402
Delx JWT Expiry Seconds Checker 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).
Parses a JWT token and returns its expiration time, seconds remaining, and whether it is expired — without verifying the signature
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 JWT is expired (boolean), the raw expiration Unix timestamp (exp), the number of seconds remaining until expiration, and a note clarifying that only claims are parsed and the signature is not verified. Also includes the schema identifier 'delx/util-jwt-exp-seconds/v1' and a signature_verified field (always false).
Example use cases
Pre-flight token expiry check
“Before I make this API call, can you check if this JWT is still valid and how many seconds it has left: eyJhbGciOiJSUzI1NiJ9.eyJleHAiOjE3OTk5OTk5OTl9.signature123”
Automated session refresh trigger
“I need to know if this user session token is about to expire — check the expiry on this JWT and tell me the seconds remaining so I can decide whether to refresh it: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE3MjAwMDAwMDB9.abc”
Debugging stale token issue
“A service keeps rejecting my token. Can you decode the expiration claims from this JWT and tell me if it's already expired: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyMSIsImV4cCI6MTY5MDAwMDAwMH0.xyz”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/jwt-exp-seconds?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, cheap, lightweight way to inspect JWT expiration claims without full signature verification — ideal for pre-call token checks, session management, or debugging expired tokens. It is not a substitute for full JWT verification; use it when you only need the timing/expiry information and trust the token's origin separately.
Side effects
- Malformed or non-JWT string returns an error response
- Token with no exp claim may return unexpected results
- Signature is explicitly not verified — validity of claims cannot be trusted cryptographically
- Network or payment failure may prevent response delivery
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| token | string | Input field: token. |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"exp": 4800000000,
"note": "claims only — signature not verified",
"schema": "delx/util-jwt-exp-seconds/v1",
"expired": false,
"seconds_remaining": 3009483560,
"signature_verified": false
}
}Tags
x402
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