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Open-source MCP servers and tools
46 open-source mcp servers & registries tools. MCP Servers & Registries tools listed as Free because they are open-source projects you can download and run. Check each project's license, and note that hosting and model costs may still apply.
How to read this page. The tools are grouped by category and are not ranked. Pricing labels come from vendors' own pages when we could confirm them. Always verify plans and limits on the vendor's site.
MCP Servers & Registries (46)
| Tool | What it does | Pricing | Link |
|---|---|---|---|
| AWS MCP Servers | Open-source MCP servers from AWS Labs that give AI assistants access to AWS services and docs. | Free | Official site |
| Azure MCP Server | Microsoft MCP server that connects agents to Azure services. | Free | Official site |
| Blender MCP | Community MCP plugin that lets Claude and other LLMs control Blender 3D. | Free | Official site |
| Brave Search MCP Server | Official Brave Search MCP server. | Free | Official site |
| Bright Data MCP | Bright Data MCP server for web access and scraping. | Free | Official site |
| Chrome DevTools MCP | Official MCP server that lets coding agents control and inspect a live Chrome browser through DevTools. | Free | Official site |
| ClickHouse MCP Server | ClickHouse MCP server for running queries from AI assistants. | Free | Official site |
| dbt MCP Server | dbt Labs MCP server for dbt project metadata, semantic layer and commands. | Free | Official site |
| Desktop Commander | MCP server for terminal commands and file editing on your computer. | Free | Official site |
| Elasticsearch MCP Server | Elastic MCP server for querying Elasticsearch from AI tools. | Free | Official site |
| ElevenLabs MCP | Official ElevenLabs MCP server for text to speech and audio tools. | Free | Official site |
| Fetch MCP Server | Reference MCP server for fetching web content. | Free | Official site |
| Filesystem MCP Server | Reference MCP server for secure file operations. | Free | Official site |
| Firebase MCP Server | Firebase CLI MCP server for managing Firebase projects from AI tools. | Free | Official site |
| Firecrawl MCP Server | Firecrawl MCP server for web scraping and crawling. | Free | Official site |
| Git MCP Server | Reference MCP server for reading and manipulating Git repositories. | Free | Official site |
| GitHub MCP Server | GitHub's official MCP server for repositories, issues and pull requests. | Free | Official site |
| Grafana MCP Server | MCP server for Grafana dashboards, data sources and incidents. | Free | Official site |
| Heroku MCP Server | MCP server for managing Heroku apps and resources. | Free | Official site |
| HOL Plugins | Public registry of AI coding-agent plugins across Claude Code, Codex, Cursor, MCP and related runtimes, ranked by trust score with scanner-backed security signals. | Free | Official site |
| Hugging Face MCP Server | Official Hugging Face MCP server that lets AI assistants search models, datasets, Spaces and papers on the Hub. | Free | Official site |
| Kubernetes MCP Server | MCP server for Kubernetes and OpenShift clusters. | Free | Official site |
| MCP Python SDK | Official Python SDK for MCP. | Free | Official site |
| MCP Toolbox for Databases | Open-source MCP server from Google for connecting agents to databases. | Free | Official site |
| MCP TypeScript SDK | Official TypeScript SDK for MCP servers and clients. | Free | Official site |
| mcp-agent | Framework from LastMile AI for building agents with MCP. | Free | Official site |
| Memory MCP Server | Reference MCP server for a knowledge-graph memory. | Free | Official site |
| Monday.com MCP | monday.com MCP server for boards and items. | Free | Official site |
| MongoDB MCP Server | Official MCP server for interacting with MongoDB databases and Atlas. | Free | Official site |
| Neon MCP Server | MCP server for managing Neon Postgres projects and databases in natural language. | Free | Official site |
| Obsidian MCP | MCP server for Obsidian vaults via the Local REST API plugin. | Free | Official site |
| PagerDuty MCP Server | PagerDuty official MCP server for incidents and services. | Free | Official site |
| Perplexity MCP Server | Perplexity official MCP server for its Sonar API. | Free | Official site |
| Pinecone MCP | Pinecone developer MCP server for indexes and docs. | Free | Official site |
| Playwright MCP | Microsoft's MCP server that lets agents drive a browser with Playwright. | Free | Official site |
| Postman MCP Server | Official MCP server that connects AI agents to Postman APIs and collections. | Free | Official site |
| Qdrant MCP Server | Official Qdrant MCP server for semantic memory on Qdrant. | Free | Official site |
| Redis MCP Server | Redis's official MCP server for working with data in Redis. | Free | Official site |
| Semgrep MCP | Semgrep MCP server for scanning code for vulnerabilities. | Free | Official site |
| Sequential Thinking MCP | Reference MCP server for step-by-step problem solving. | Free | Official site |
| Serena | Open-source coding agent toolkit with semantic code retrieval via MCP. | Free | Official site |
| Snowflake MCP Server | Snowflake Labs MCP server for Cortex AI, object management and SQL. | Free | Official site |
| Tavily MCP | Tavily MCP server for search and extraction. | Free | Official site |
| Terraform MCP Server | HashiCorp MCP server for Terraform registry and workflows. | Free | Official site |
| Twilio MCP Server | Twilio Labs MCP server exposing Twilio APIs to AI assistants. | Free | Official site |
| Unity MCP | MCP server bridging AI assistants and the Unity Editor. | Free | Official site |