Browse free open source MCP Gateways and projects below. Use the toggles on the left to filter open source MCP Gateways by OS, license, language, programming language, and project status.
lightweight package to simplify LLM API calls
Next Generation Agentic Proxy for AI Agents and MCP servers
Deploy and share agents with open infrastructure
A next-gen FOSS self-hosted unified zero trust secure access platform
The Cloud-Native API Gateway and AI Gateway
The Fastest LLM Gateway with built in OTel observability
Hosting, Registry, Gateway, and Chat Client
A blazing fast AI Gateway with integrated guardrails
A Model Context Protocol (MCP) Gateway & Registry
Centralized credential vault, governance, and token optimization
Docker mcp CLI plugin / MCP Gateway
Open-source MCP gateway and control plane for teams
Convert API into MCP Server in seconds
The Cloud-Native API Gateway
A Model Context Protocol server for interacting with Kong Konnect
An MCP stdio to HTTP SSE transport gateway with example server
Self-hosted MCP Gateway and Registry for AI agents
MCP Aggregator, Orchestrator, Middleware, Gateway in one docker
MCP Gateway is a reverse proxy and management layer for MCP servers
Secure vault, managed runtime, audit trail, and policy-based approvals
Gateway service that instantly transforms existing MCP Servers
Open source MCP gateways are designed to help organizations manage communication between AI models, external services, and connected tools using standardized protocols. These gateways simplify how requests are routed, authenticated, monitored, and controlled across different environments while giving teams greater flexibility over deployment and customization. Because the source code is publicly available, organizations can adapt features, extend integrations, and tailor security measures to meet their operational requirements.
Many businesses adopt open source MCP gateways to reduce vendor dependency while maintaining greater visibility into how AI interactions are processed. Development teams can configure policies for access control, logging, rate limiting, and request validation without being restricted by proprietary architectures. This flexibility makes the technology suitable for experimentation as well as production environments that demand transparency and control.
As AI ecosystems continue to expand, open source MCP gateways play an important role in connecting models with enterprise applications, cloud services, and internal tools. They help improve interoperability, simplify governance, and support consistent communication across multiple systems. Organizations evaluating these gateways often focus on scalability, security, maintainability, and compatibility with their existing technology stack.
Open source MCP gateways are often available without licensing fees, making them an attractive option for organizations looking to reduce upfront expenses. While the gateway itself may be free to use, organizations should still budget for infrastructure, hosting, security, maintenance, monitoring, and technical expertise. Costs can increase if advanced enterprise capabilities, managed hosting, or professional support are required.
Organizations with larger deployments may also incur expenses related to cloud resources, integrations, compliance, training, and ongoing administration. Some providers offer optional subscription plans or commercial licensing for advanced features, while others charge for managed services instead of the gateway itself. The overall investment depends on deployment size, performance requirements, and internal technical resources.
Open source MCP gateways can integrate with AI assistants, workflow automation tools, identity and access management platforms, API management tools, developer environments, monitoring solutions, logging platforms, and cloud infrastructure services. They also work with messaging platforms, data storage systems, and security tools to support authentication, routing, and governance. Many organizations connect them with orchestration platforms and backend services to simplify communication between AI models and business applications. Integration capabilities often depend on supported protocols, deployment architecture, and customization requirements. Well-designed integrations help create consistent data flows, improve operational visibility, and reduce manual configuration while maintaining security and scalability.
Selecting the right open source MCP gateways starts with understanding how they will connect AI models, data sources, and external services. Look for software that supports the protocols, authentication methods, and deployment environments your organization already uses. Strong security controls, flexible access management, and detailed logging can help protect sensitive information while improving visibility into gateway activity.
Scalability is equally important. Evaluate how well the gateway handles increasing workloads, supports multiple integrations, and fits into existing infrastructure. Review documentation quality, update frequency, and community activity to gauge long-term reliability. Testing the gateway with real workloads before deployment can confirm that it delivers the performance, compatibility, and management capabilities your team requires.