# Delx JWT Expiry Seconds Checker

> 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

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/jwt-exp-seconds?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-jwt-expiry-seconds-checker-4d5c3bcb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B1p4C1Yq4XKzWITM2MOcq

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability delx-jwt-expiry-seconds-checker-4d5c3bcb -d '<json body>'
```

Example prompt: Can you check how many seconds are left before this JWT token expires: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwiZXhwIjoxNzAwMDAwMDAwfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c

## When to prefer this

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.

## Known failure modes

- 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

## 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).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "token": {
   "type": "string",
   "description": "Input field: token."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "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
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-jwt-expiry-seconds-checker-4d5c3bcb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)