JWT Decoder API MCP Server

Decode JWT tokens — inspect header, payload, claims, expiry. x402 micropayment.

Local serverstdio

What is the JWT Decoder API MCP Server?

Decode JWT tokens — inspect header, payload, claims, expiry. x402 micropayment.

What the server does

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.

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Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

ToolWhat it does
security_decode_jwtPOST

How to install the JWT Decoder API MCP Server

{
  "mcpServers": {
    "jwt-decoder": {
      "url": "https://jwt-decoder.api.klymax402.com/mcp"
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Example prompts to try

  • “Use JWT Decoder API to security decode jwt.”

Frequently asked questions

Decode JWT tokens — inspect header, payload, claims, expiry. x402 micropayment. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.