Yes, Thunderbit is free to use.

How do I install Thunderbit?

Thunderbit is a local plugin. Install it using npm package: @thunderbit/mcp-server and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What credentials does Thunderbit need?

Thunderbit requires the following credentials or environment variables: THUNDERBIT_API_KEY. You can find setup instructions on the server detail page.

What AI apps work with Thunderbit?

Thunderbit uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Thunderbit MCP Server

by Thunderbit Open

Developer ToolsUse Caution4.6MCP RegistryLocal

Free

Server data from the Official MCP Registry

AI-powered web scraping MCP. Distill pages to Markdown or extract structured data via JSON Schema.

About

AI-powered web scraping MCP. Distill pages to Markdown or extract structured data via JSON Schema.

Security Report

4.6

Use Caution4.6High Risk

This is a well-structured MCP server and CLI toolkit for the Thunderbit API with proper authentication via API keys and no malicious patterns detected. The codebase demonstrates good security practices including secure credential handling through environment variables, input validation via Zod schemas, and appropriate error handling. Minor code quality concerns around broad exception handling and potential null/undefined edge cases do not materially impact security. Supply chain analysis found 2 known vulnerabilities in dependencies (0 critical, 2 high severity). Package verification found 1 issue (1 critical, 0 high severity).

8 files analyzed · 7 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

HTTP Network Access

Connects to external APIs or services over the internet.

Unverified package source

We couldn't verify that the installable package matches the reviewed source code. Proceed with caution.

What You'll Need

Set these up before or after installing:

Your Thunderbit API key (tb_...). Get one at https://app.thunderbit.com/consoleRequired

Environment variable: THUNDERBIT_API_KEY

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-thunderbit-open-thunderbit-mcp-server": {
      "env": {
        "THUNDERBIT_API_KEY": "your-thunderbit-api-key-here"
      },
      "args": [
        "-y",
        "@thunderbit/thunderbit-cli"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.