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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use JWT Decoder with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Stop hallucinating Base64 translations. Instantly decode complex JWT tokens into readable headers and payloads with exact expiration mathematics.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 2 capabilities

The complete JWT Decoder capability set.

These are the exact actions your AI can choose when you ask it to work with JWT Decoder.

Capability set01 / 01

01-02

2 capabilities in this set.

Part of 2 available through JWT Decoder.

  1. 01

    Decode base64 string

    Pass the raw JWT string and receive the parsed JSON without any signature verification. Decodes any Base64 string deterministically into UTF-8 text

  2. 02

    Decode jwt token

    Pass the raw Base64 text and receive the decoded content. Decodes a JWT token deterministically. Extracts the header, payload, and calculates the exact expiration date

Observed, not estimated

884ms average. Fast in production.

JWT Decoder is checked daily against the live service.

Daily averagePeak 1131ms
Aug 23Today
Fastest day
673ms
Slowest day
1131ms
14-day trend
Improving-27%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 2 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of JWT Decoder, so you can see the experience inside your AI.

It does not authenticate your account with JWT Decoder. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

JWT Decoder Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_JtisWyM2L8SwCbAosdXvoaNUkIeJdtsNTEISeftK/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — JWT Decoder capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "jwt-base64-decoder-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_JtisWyM2L8SwCbAosdXvoaNUkIeJdtsNTEISeftK/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions JWT Decoder owners ask.

  • 01

    Is it secure?

    Yes, decoding runs completely local.

  • 02

    Does it verify the JWT signature?

    No, this is a strict decoder for reading payloads, not an authentication gateway.

  • 03

    Can it decode hex as well?

    It is specialized in Base64 and JWT headers/payloads.

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