Decode JWT tokens — inspect header, payload, claims, expiry. x402 micropayment.
If you already use JWT Decoder API, the jwt decoder api mcp server is the piece that lets your assistant work with it directly. Decode JWT tokens — inspect header, payload, claims, expiry. x402 micropayment.
Decode and inspect JWT tokens without verification. Extracts header, payload, claims, expiry, and signature algorithm. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
The toolset is worth reading before you wire it up, because it tells you what the integration is really for:
security_decode_jwt — POSTSetup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. JWT Decoder API's toolset — security_decode_jwt — is a fair guide to whether it matches your workflow. It is maintained by Br0ski777; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| security_decode_jwt | POST |
{
"mcpServers": {
"jwt-decoder": {
"url": "https://jwt-decoder.api.klymax402.com/mcp"
}
}
}Configuration as documented by the project. Restart the client after saving.
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