MCP servers that ship as code — a repository or a package you install and run locally (usually over stdio). They have no hosted endpoint, so we cannot probe or grade them: instead each one shows its repository, install command, license, stars and when it was last updated.
Collected from GitHub repositories and npm, PyPI, Cargo, Go, Maven, NuGet and RubyGems packages tagged as MCP servers, the official MCP Registry, Docker's MCP catalog, ModelScope, Baidu MCP World, Cline and other public directories; one entry per repository. A server that also offers a hosted endpoint is listed under Remote instead. These entries are not counted in our reachability, verification or readiness statistics.
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Community-driven library of tested prompts — npm for AI agent configs
MIT -
Community-driven library of tested prompts and MCP tool configurations — npm for AI agent configs
pypi MIT -
telegram-bot-testing-mcpgithub.com/0x216/telegram-bot-testing-mcpupdated this year
Write test scenarios for your Telegram bot — Claude runs them like a human QA. MCP server driving the official Telegram Web client in a real browser: structured reads, button presses, files, screenshots, Mini Apps. No MTProto libraries.
MIT ★ 2 -
A library, CLI tool, and MCP server for automated and scripted accessibility testing using VoiceOver (macOS) and NVDA (Windows)
★ 1 -
Highly configurable YATT MCP server library: spin up your own UI-testing MCP server (35 tools, Playwright engine, headless-first) with strict, typed configuration for paths, HTTP transport, auth, permissions, sessions and retention.
npm MIT -
MCP server, command line and TypeScript library that test, drive and measure iOS and Android apps on simulators, emulators and real phones.
npm MIT ★ 1 -
AI-first local mock server and HTTPS proxy for client tests: a coding agent drives it over MCP or the CLI, and test code embeds it as a library
npm MIT -
Render testing built for AI agents: a map of the screen instead of screenshots, actions by intent, map-to-map comparison. MCP server and library. Verified by Healer.
MIT -
Debug and fault-test any WebRTC session — Chrome extension, MCP server for AI coding agents, npm library, and Playwright plugin. Live RTCPeerConnection/WebSocket inspection, reconnect testing, network-loss simulation.
MIT ★ 4 -
MCP server for the Web UI Component Specification — behavioral specs, tests, and principles for web UI component libraries
MIT -
regexlabgithub.com/cognis-digital/regexlabupdated this year
Test, explain & benchmark regexes + a library of security patterns
NOASSERTION -
MCP server for the Web UI Component Specification — behavioral specs, tests, and principles for web UI component libraries
pypi MIT License -
MCP server that gives your agent a library of its own tested, reusable scripts.
pypi MIT -
MCP server that gives your agent a library of its own tested, reusable scripts.
MIT ★ 2 -
Exact, tested US construction calculators for code and AI assistants: roof pitch, concrete, gravel, brick, paint, drywall, deck, markup. TypeScript library + MCP server.
MIT -
MCP server and library for independent verification of agent payment and outcome receipts. Written against the published specs, tested against the protocol authors' own vectors.
npm Apache-2.0 -
Provide a simple Python library to handle tasks efficiently with full type support, continuous testing, and complete code coverage.
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calibre_full_mcp_servergithub.com/FaceDeer/calibre_full_mcp_serverupdated this year
A full-featued Calibre MCP server with granular permissions for read/write/import/etc. Locally tested and freshly released, consider this an alpha. Back your library up before you give an agent write permissions.
MIT ★ 25 -
solo-founder-osgithub.com/alex-jb/solo-founder-osupdated this year
Self-evolving 10-agent stack for one-person companies. Cron + eval + reflexion + skill library + PR-gated evolver. pip install solo-founder-os · 513 tests · MIT.
MIT ★ 12 -
An open compatibility testing network: does this library API actually run on your version, OS and runtime? Real build evidence, verified samples, and the environment each result came from.
Apache-2.0 ★ 2 -
66 agent skills, 13 role agents and 8 MCP servers for AI assistants that build software, review code, write, research, analyse data and do quant work. Open Agent Skills format, with tested standard-library checkers.
MIT -
AI-agent-native low cycle fatigue strain-life analysis. Python library plus MCP server: reduce strain-controlled test data, fit Basquin, Coffin-Manson, and Ramberg-Osgood models, predict life with mean-stress corrections, and save results for recall.
MIT -
Let LLMs author your integration tests—E2E-style.
MIT ★ 10 -
Gherkio lets you describe HTTP-based integration tests as declarative YAML scenarios. Define requests, assertions, variable extractions, and orchestration — all in a simple, human-readable format that stays maintainable over time.
MIT ★ 3 -
Give your AI agents full control over any Electron app. Zero changes to your existing code. Made for AgentsRoom.dev.
MIT ★ 13 -
SeleniumBase for Rust (unofficial port): browser automation and testing with the SeleniumBase API, a driverless Chrome DevTools engine, stealth mode, and an MCP server for AI agents.
NOASSERTION ★ 1 -
🎨 Enhance Storybook with this TypeScript MCP server for seamless AI interaction, allowing easy access to components, stories, and screenshots.
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MCP server for Storybook - provides AI assistants access to components, stories, properties and screenshots. Built with TypeScript and Model Context Protocol SDK.
npm AGPL-3.0 ★ 15 -
Rust SDK and MCP server for RIGOL bench instruments — DP800 power supplies and DHO800/900 oscilloscopes, with library-enforced safety limits
MIT ★ 1 -
Unofficial driver for the Vega Virtual Device: remote keys, screenshots and video with sound, from scripts and AI agents. CLI, Node library and MCP server.
npm MIT -
Zero-error LLM execution via SPRT voting. Rust library and MCP server implementing the MAKER algorithm for mathematically-grounded error correction in long-horizon AI agent tasks. Research experiment based on arXiv:2511.09030
MIT ★ 5