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PrimeAPI JWT Decode
x402
PrimeAPI JWT Decode is a paid API for AI agents from prime-api-seven.vercel.app, paid per call via x402, $0.160058/call, status unknown (last checked 2026-09-14).
Decodes a JWT (JSON Web Token) to extract its header, payload, and signature components without verification
Price / call$0.160058
Success—
StatusUnknown
How this service works
Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.
Output
Returns the decoded JWT broken into its constituent parts: the header (algorithm, token type), the payload (all claims such as sub, iss, iat, exp, and any custom fields), and the raw signature. The payload claims are returned as a readable JSON object.
Example use cases
Example prompt
“Can you decode this JWT for me and show me the payload claims, especially the expiration and subject fields? Here's the token: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyMTIzIiwiZXhwIjoxNzAwMDAwMDAwfQ.signature”
Technical details
Endpoint
POSThttps://prime-api-seven.vercel.app/api/tools/jwt/decodeWhen to prefer
Use this endpoint when you need to quickly inspect the contents of a JWT without setting up a local library or when operating in an agent workflow that needs to read token claims (e.g., checking expiry, extracting user identity) as a standalone paid microservice call via x402/USDC on Base.
Side effects
- Invalid or malformed JWT string returns a parse error
- Empty query input returns a 400-level error
- Token with non-standard encoding may fail to decode correctly
- Network or server error returns a 5xx response
- Payment failure (insufficient USDC balance) returns a 402 error before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | Search query or input parameter |
Output
Schema · Response
{
"type": "object",
"description": "API response data"
}Tags
x402
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