JWT Decoder API

io.github.Br0ski777/jwt-decoder

Decode JWT tokens â€” inspect header, payload, claims, expiry. x402 micropayment.

healthy

status

tools exposed

433ms

connect latency

379d054f2b4d

schema fingerprint

Tools (1)

security_decode_jwt

Use 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 token type 2. payload -- all claims (sub, iss, aud, iat, exp, custom claims) 3. issuedAt -- human-readab

Endpoint

https://jwt-decoder.api.klymax402.com/mcp
Category: Dev & Git · Last checked: 2026-07-30T13:46:44Z

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What this means. This server responded to the MCP handshake and listed its tools without authentication. The schema fingerprint lets us flag if tool signatures silently change (schema drift) between checks.