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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[Experimental] Tokyo Transit MCP Server is a modular backend designed to provide structured public transportation intelligence for AI agents.
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Experimental, pre-release. Drives Android devices and emulators, iOS Simulators and iPhones for AI agents: a daemon with a live mirror of every screen, a CLI and an MCP server, built around the latency of each tap-and-observe step
MIT ★ 6 -
Equinix Docs and API specifications MCP Server (experimental)
pypi MIT -
researchforgegithub.com/forger-labs-hq/researchforgeupdated this year
From papers to proof — a Claude-first research and experimentation CLI.
pypi Apache-2.0 -
ghost-mcpgithub.com/philipithomas/ghost-mcpupdated this year
An experimental MCP server for Contraption Company essays
MIT ★ 1 -
temple-os-mcpgithub.com/barrettotte/temple-os-mcpupdated this year
An experimental MCP server for TempleOS
MIT -
mcp-testgithub.com/evanallen13/mcp-testupdated this year
Minimal experimental MCP server in Python.
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experimental MCP - encrypted thoughts for LLMs
MIT ★ 2 -
github-braingithub.com/wham/github-brainupdated this year
An experimental GitHub MCP server with local database.
MIT ★ 78 -
@mseep/hexdocs-mcpstale
Unofficial, experimental MCP server for HexDocs, based in the search API.
npm ISC -
foundry-mcp-servergithub.com/PraneshASP/foundry-mcp-serverupdated this year
An experimental MCP Server for foundry built for Solidity devs
MIT ★ 254 -
mcp_exploitdbgithub.com/CyberRoute/mcp_exploitdbupdated this year
Experimental MCP local server for bug hunters to speed up exploits searches
★ 7 -
Experimental MCP server for browser automation using Puppeteer (inspired by @modelcontextprotocol/server-puppeteer)
npm MIT -
Experimental prototype of an F# development toolkit delivered via the Model Context Protocol (MCP).
MIT ★ 13 -
stylegan-cli-mcpgithub.com/curegit/stylegan-cli-mcpupdated this year
Experimental MCP server setup for the StyleGAN CLI tools
NOASSERTION -
fusion-data-mcpgithub.com/SpollaL/fusion-data-mcpupdated this year
MCP server for nuclear fusion experimental databases (LHD, MAST, Alcator C-Mod)
MIT ★ 1 -
DISCLAIMER: This server is still in experimental status! Use it with caution!
npm ISC -
strands-mcp-servergithub.com/cagataycali/strands-mcp-serverupdated this year
Experimental: Bidirectional MCP integration for Strands Agents.
Apache-2.0 ★ 7 -
Own-account DeepSeek Web MCP with experimental Doubao and Gemini website transports
npm MIT -
@ignfab/geocontextgithub.com/ignfab/geocontextupdated this year
An experimental MCP server providing access to the services and data of the french Geoplateform
npm MIT -
Experimental and unofficial MCP Server for interacting with Couchbase Sync Gateway
MIT -
Experimental MCP server providing access to the services and data of the french Geoplateform
MIT ★ 32 -
pgrgithub.com/entireio/pgrupdated this year
PGR is an experimental, stateless MCP code-search server for studying how ranking, latency, and output shaping affect agentic search.
MIT ★ 63 -
An experimental system for connecting AI agents to an Obsidian vault through a controlled service layer.
MIT -
An experimental DSL used for building embeddable artifacts and orchestrating pipelines.
Apache-2.0 ★ 1 -
MCP (Model Context Protocol) server exposing fetch-cwe-list tools for LLM agents. Experimental/alpha — APIs may change.
npm MIT -
A2Agithub.com/gstdcoin/A2Aactive
Experimental Python/Node.js clients and a local MCP server for AI agents to talk to the GSTD platform API.
Apache-2.0 ★ 2 -
🏓 An experimental and educational script for Ping-pong server demonstrating remote MCP (Model Context Protocol) calls
★ 2 -
meetings-mcp-servergithub.com/MarcKarbowiak/meetings-mcp-serverupdated this year
Experimental MCP server for meeting-centric AI workflows. Demonstrates tool orchestration, structured outputs, and production-minded AI integration patterns.
MIT -
Domain-agnostic MCP server for autonomous experimentation with metric-driven keep/rollback decisions and reproducible experiment history.
Apache-2.0 ★ 3 -
Computer Use for macOS: background app control, native human controls and verified updates over MCP. Windows and Linux ports are experimental.
MIT ★ 4 -
ml-mcpgithub.com/PushPullCommitPush/ml-mcpupdated this year
A comprehensive MCP (Model Context Protocol) server for ML model training, fine-tuning, and experimentation. Transform your AI assistant into a full ML engineering environment.
NOASSERTION ★ 4 -
Filo è un server MCP sperimentale e non ufficiale per il Design system .italia | Filo is an experimental unofficial MCP server for Design System .italia
BSD-3-Clause ★ 6 -
Local MCP server: macOS apps and a browser by element index, plus iPhone Mirroring (experimental).
npm MIT ★ 4 -
Local MCP server: macOS apps and a browser by element index, plus iPhone Mirroring (experimental).
npm MIT -
An experimental MCP service for Azure AI Search in Python
MIT -
Experimental zero-runtime-dependency MCP skill library with BM25 search and indexed Ed25519 status; clients must enforce that status.
Apache-2.0 ★ 1 -
An experimental local MCP server for symbolic, numerical, dimensional, and plotting tools in engineering and physics workflows.
MIT -
KoniSynth is an experimental synthesizer laboratory for the sounds of the 60s to the 90s with MCP support
AGPL-3.0 ★ 1 -
Experimental MCP server for driving Zemax OpticStudio from a coding agent (code-only; vendor data built locally)
pypi Apache-2.0 ★ 19 -
🌍 Terraform Model Context Protocol (MCP) Tool - An experimental CLI tool that enables AI assistants to manage and operate Terraform environments. Supports reading Terraform configurations, analyzing plans, applying configurations, and managing state with Claude Desktop integration. ⚡️
MIT ★ 372 -
moodle-mcp-for-ai-agentsgithub.com/x-name15/moodle-mcp-for-ai-agentsupdated this year
Personal MCP tool that I use to provide Moodle context to different AI clients (Experimental)
GPL-3.0 -
@atsp-world/mcp-server: MCP stdio proxy for ATSP World, a live experimental discovery run on agent activity and its bounds (no Genesis core)
NOASSERTION -
A ledger of experimental data and process, kept encrypted and backed by proof. GitHub for code, Hugging Face for models, Provena for verifiable science.
NOASSERTION -
The mobile-agent, mobile-agent-daemon and mobile-agent-mcp binaries for macOS on Apple silicon (aarch64-apple-darwin), from the release's attested tarball, which @mobileagent/cli installs on such a host. Experimental, pre-release.
npm MIT -
[Maintenance paused] Experimental local coordination for Claude Code sessions: MCP messaging, task tracking, and tmux/Zellij auto-wake.
MIT ★ 2 -
Local CLI and MCP tools for experimental load-path analysis of 3D-printed STL parts, CAD revision comparisons, visual reviews, and human-guided engineering sessions.
MIT -
An experimental Model Context Protocol (MCP) server that allows LLM clients (like Claude Desktop) to dynamically retrieve the latest implementation details and documentation from popular AI libraries such as LangChain, LlamaIndex, and OpenAI.
MIT -
Open source, self-hostable, experimental tool for discovering relevant hedges using event contracts and prediction markets. It does not hold money or place trades. Any order happens on the source venue (today, Kalshi). Inspired by Blanket.
MIT ★ 1 -
Experimental MCP server for accessible, interactive MAIDR charts in MCP Apps, with AI-guided navigation, screen-reader support, sonification, and braille.
GPL-3.0 ★ 1 -
codeprismgithub.com/rustic-ai/codeprismupdated this year
An experimental, 100% AI-generated, high-performance code intelligence server providing AI assistants with a graph-based understanding of codebases.
NOASSERTION ★ 32 -
conductorgithub.com/Dragoon0x/conductorupdated this year
Design-intelligent MCP server for Figma. 201 tools, 17 categories. 8px grid, type scales, semantic colors, accessibility, code export. Experimental - DYOR.
NOASSERTION ★ 2 -
MCP server for the fine-tuner's publish workflow on Hugging Face Hub — upload models with resumable retry, inspect repos, and maintain model cards. GGUF quantization is included but experimental.
npm MIT -
My First MCP Serverno update data
Provide a simple and easy-to-run MCP server implementation that supports stdio and SSE transports. Enable seamless integration with MCP clients using Node.js or Docker environments. Facilitate quick startup and testing of MCP capabilities for development and experimentation.
smithery -
Local WhatsApp MCP tools for Codex on macOS: scoped reads and confirmed replies. Stable community source release; Claude and other MCP clients experimental.
MIT ★ 2 -
Give your AI its own Windows desktop session while you keep using yours. Local viewer, CLI and MCP. Experimental preview for Windows 11.
MIT ★ 5 -
openfinance-br-mcpgithub.com/brunovicco/openfinance-br-mcpupdated this year
Experimental MCP server for Open Finance Brasil, with mock support for accounts, balances, transactions, credit cards, investments, consent flows, and FAPI-BR security mechanisms.
MIT ★ 3 -
Magneto is a non-LLM adversarial citation gate whose job is to prevent hallucinations by fact-checking an agent in real-time. Currently for Kiro. EXPERIMENTAL.
NOASSERTION -
Beancount MCP Server is an experimental implementation that utilizes the Model Context Protocol (MCP) to enable AI assistants to query and analyze Beancount ledger files using Beancount Query Language (BQL) and the beanquery tool.
MIT ★ 53 -
Local-first Plaud Note Pro audio vault. Direct Bluetooth imports, Mistral/Voxtral transcription, Markdown documents, AI chat, REST API and MCP. Tauri macOS app; experimental Android.
MIT ★ 41