Browse free open source Model Context Protocol (MCP) Servers and projects below. Use the toggles on the left to filter open source Model Context Protocol (MCP) Servers by OS, license, language, programming language, and project status.
Python tool for converting files and office documents to Markdown
MCP for xiaohongshu.com
Lemonade helps users run local LLMs with the highest performance
MCP server to work with Telegram through MTProto
Wanaku MCP Router
A command-line interface for interacting with MCP
MCP Server for interacting with manifest v2 compatible browsers
MCP server for Grafana
MCP server wrapper for OpenAI Codex CLI
MCP Server for IDA Pro
Last9 MCP Server
AI app store powered by 24/7 desktop history. open source
Model Context Protocol (MCP) server to interact with Firebase service
Go server implementing Model Context Protocol (MCP) for filesystem
AniList MCP server for accessing anime and manga data
A Model Context Protocol (MCP) Gateway & Registry
Model Context Protocol (MCP) server for DeepSource
Adds powerful web scraping and search to Cursor and Claude
Model Context Protocol server for GraphQL
A Model Context Protocol (MCP) server that enables secure interaction
GUI/CLI tool for downloading Xiaohongshu
A Binary Ninja plugin, MCP server
MCP (Model Context Protocol) server for the Contentful Management API
Mini Kubernetes AI Dashboard
A middleware to provide an openAI compatible endpoint
Open source model context protocol (MCP) servers provide a standardized way for artificial intelligence models to connect with external tools, services, and data sources through a common communication framework. Rather than relying on custom integrations for every connection, these servers establish a consistent interface that allows AI applications to retrieve information, execute actions, and interact with business resources more efficiently. Their open source nature also gives organizations the flexibility to inspect, modify, and extend functionality based on their own operational requirements.
As adoption of AI continues to expand across industries, MCP servers have become increasingly valuable for organizations seeking reliable and scalable connectivity between language models and enterprise environments. They can bridge AI systems with internal databases, document repositories, cloud services, APIs, productivity platforms, development tools, and business applications while maintaining a structured method for exchanging requests and responses. This approach simplifies integration efforts and supports the creation of more capable AI-driven workflows.
Many organizations choose open source model context protocol (MCP) servers because they offer transparency, customization, and greater control over deployment. Teams can tailor authentication methods, security policies, permissions, and supported tools to match internal governance requirements while benefiting from ongoing community-driven improvements. As AI initiatives mature, these servers play an important role in creating interoperable ecosystems that allow language models to work more effectively with the systems and information businesses rely on every day.
Open source Model Context Protocol (MCP) servers are generally available without licensing fees, making them an attractive option for organizations looking to reduce upfront expenses. While the server itself may be free to use, businesses should still budget for the infrastructure required to host and operate it. Costs can vary depending on whether the server is deployed on local hardware, private infrastructure, or cloud environments, as well as the expected number of users and connected services.
The total cost of ownership extends beyond deployment. Organizations may need to invest in implementation, configuration, security, monitoring, maintenance, and ongoing updates to keep the server reliable and secure. Additional expenses can arise from integrating the MCP server with existing tools, training internal teams, or hiring technical experts to customize workflows. Evaluating these operational costs alongside infrastructure requirements provides a more accurate picture of the long-term investment.
Open source model context protocol (MCP) servers can integrate with a wide range of business tools that extend AI capabilities and streamline workflows. Common integrations include customer relationship management platforms, enterprise resource planning solutions, knowledge management systems, document management tools, databases, cloud storage services, and communication platforms. They can also connect with workflow automation tools, API management platforms, identity and access management solutions, monitoring and logging tools, analytics platforms, and developer tools. For organizations using AI, MCP servers often integrate with large language models, retrieval-augmented generation frameworks, vector databases, and data processing pipelines to provide secure, context-aware interactions. Integration with security, governance, and auditing solutions also helps organizations maintain visibility, control permissions, and support compliance requirements. These connections enable businesses to centralize access to information while allowing AI applications to interact with multiple data sources through a standardized interface.
Selecting the right open source model context protocol (MCP) servers starts with understanding the tasks the server must support, the types of tools it will connect to, and the environments where it will operate. Evaluate compatibility with AI models, APIs, databases, file systems, and business applications to ensure smooth integration. Review authentication methods, permission controls, logging capabilities, and security features to protect sensitive data and manage access effectively. Consider scalability, performance, deployment flexibility, and the ease of extending functionality as requirements change. Strong documentation, active community support, regular updates, and clear licensing can reduce implementation challenges and improve long-term reliability. Testing the server with realistic workloads before deployment helps confirm that it delivers the performance, stability, and features needed for your organization.