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JWT Decode (manylives.me)
x402
JWT Decode (manylives.me) is a paid API for AI agents from manylives.me, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).
Decodes a JWT token without signature verification, returning the header (algorithm, key ID), payload claims, and timing fields (issued-at, not-before, expiry) with live expiry status.
Price / call$0.002
Success—
StatusUnknown
How this service works
Decode a JWT without verifying it: header (algorithm, key id), payload claims, and issued, not-before and expiry times with whether it is expired now.
Output
A JSON object with: header fields (alg, typ, kid if present), payload containing all claims (sub, iat, exp, nbf, and any custom claims), human-readable ISO timestamps for issued-at, not-before, and expiry, a boolean 'expired' field reflecting whether the token is expired right now, and a 'signature_verified: false' flag (since this endpoint decodes without verifying).
Example use cases
Debug expired auth token
“I have this JWT from our auth service and users are getting 401 errors — can you decode it and tell me if it's expired and what the expiry time was: eyJhbGciOiJSUzI1NiIsImtpZCI6ImFiYzEyMyJ9.eyJzdWIiOiJ1c2VyXzQ1NiIsImV4cCI6MTcwMDAwMDAwMH0.c2ln”
Inspect token claims before processing
“Before I trust this JWT from the incoming webhook, can you decode it and show me all the payload claims and the algorithm used — I just want to see what's in there without verifying the signature: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJyb2xlIjoiYWRtaW4iLCJpYXQiOjE3OTAwMDAwMDB9.c2ln”
Check token timing and key ID
“Can you parse this JWT and tell me the issued-at time, not-before time, expiry, whether it's expired right now, and what key ID is in the header: eyJhbGciOiJFUzI1NiIsImtpZCI6ImtleS0yMDI0In0.eyJzdWIiOiJzZXJ2aWNlQSIsIm5iZiI6MTc5MDAwMDAwMCwiZXhwIjoxNzkxNDQyMDY0fQ.c2ln”
Technical details
Endpoint
POSThttps://manylives.me/paid/util/jwt-decode?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to quickly inspect or debug a JWT — reading claims, checking expiry, or identifying the algorithm and key ID — without needing the signing secret or public key. Ideal for debugging, logging pipelines, or pre-processing tokens before forwarding them. Not suitable when you need cryptographic signature verification.
Side effects
- Malformed JWT (not three base64url segments separated by dots) returns an error
- Empty or missing 'token' field returns a validation error
- Token with invalid base64url encoding in header or payload returns a parse error
- Extremely large tokens may be rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| token | string | the JWT (required) |
Output
Schema · Response
{
"type": "json",
"example": {
"header": {
"alg": "HS256",
"typ": "JWT"
},
"expired": false,
"expires": "2026-10-08T06:47:44.000Z",
"payload": {
"exp": 1791442064,
"sub": "…"
},
"signature_verified": false
}
}Tags
x402
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