Open source mcp-tools projects

Every project in the registry tagged mcp-tools, ranked by real GitHub adoption.

projects 4 combined stars ★ 32K refresh nightly
01 ActivePieces ★ 25K

Automate workflows with no-code integration platform

last push9 hours ago languageTypeScript license
02 pentestagent ★ 3.1K

PentestAgent is an AI agent framework for black-box security testing, supporting bug bounty, red-team, and penetration testing workflows.

last push11 days ago languagePython licenseMIT
03 toolhive ★ 2.2K

ToolHive is an enterprise-grade platform for running and managing Model Context Protocol (MCP) servers.

last push7 hours ago languageGo licenseApache-2.0
04 Voiden ★ 1.8K

Build APIs like code with Git-native workspace

last push7 days ago languageTypeScript licenseApache-2.0

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Frequently asked questions

How many open source mcp-tools projects are there?

This registry tracks 4 projects tagged mcp-tools, with 31,547 GitHub stars between them. The most-adopted is ActivePieces at 24,522 stars.

Are these mcp-tools projects free to use?

Yes — 3 of the 4 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which mcp-tools project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these mcp-tools projects still maintained?

4 of the 4 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.