# JWT & Base64 Decoder MCP Server

> Use this tool when you need to decode and inspect JSON Web Tokens (JWT) and Base64-encoded data in real-time, solving authentication and data validation problems by providing a safe and efficient way to extract and analyze payload information. It accepts encoded tokens and payloads as input and returns decoded data as output. Ideal for use cases requiring secure and instant verification of token authenticity and payload integrity.

Canonical page: https://skillsregistry.net/skills/vinkius-labs-jwt-base64-decoder-mcp  
JSON: https://api.skillsregistry.net/v1/skills/vinkius-labs-jwt-base64-decoder-mcp

## Description

Enables AI agents to safely decode and inspect JWT tokens and Base64 payloads in real-time.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** verified
- **Last scanned:** 2026-09-03

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-09-03

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/wm2zy7d38h)
- **Repository:** <https://github.com/vinkius-labs/jwt-base64-decoder-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "vinkius-labs-jwt-base64-decoder-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/vinkius-labs-jwt-base64-decoder-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/vinkius-labs-jwt-base64-decoder-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt