JWT Decoder — Inspect Claims, Expiry & Algorithm
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JWT token decoder API for AI agents. Decode and inspect JSON Web Tokens without verification: extract header (algorithm, type), payload (claims, issuer, audience), expiry timestamp, and signature info. Tools: security\_decode\_jwt. Use this for debugging authentication flows, inspecting token claims, or verifying token structure. IMPORTANT: This decodes without verifying — for security validation, verify signatures server-side. Returns: {header, payload, claims, expiresAt, algorithm}. No API key required — x402 micropayment $0.001/call on Base L2.
Decode and inspect JWT tokens by extracting the header, payload, claims, expiry, and signature algorithm without verification.
- Version:
- hosted
- Publisher:
- axel-belfort
- Company:
- klymax402 (third-party)
- Pricing:
- Pay-per-call via x402.
- Summary written by google/gemini-2.5-flash-lite from the server’s own site and README; facts above come from the registries.
Install
Generated from the server’s transport data — never hand-written. Placeholders in angle brackets are yours to fill.
Run it with its own identity, a budget you set, and every call audited — no local config to keep in sync.
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What it can do
As declared by the publisher
Tools · 1
security_decode_jwtUse this when you need to decode and inspect a JWT token without verifying its signature. Returns the full header, payload, and expiration status. 1. header -- algorithm (RS256, HS256, etc.) and toke