MCP Bridge by Appfactor

MCP Bridge by Appfactor is a specialized tool that automatically generates Model Context Protocol (MCP) tool definitions from existing API schemas. It takes REST, GraphQL, SOAP, or gRPC APIs and converts each operation into a fully described MCP tool with typed input/output schemas, parameter mappings, and documentation. This eliminates the need for developers to manually write tool definitions, which can take weeks of work.

The tool works by importing API schemas via URL, file upload, or pasted content. It automatically generates MCP tools with behavioral annotations and supports enterprise authentication methods including OAuth2, API keys, and AWS Cognito. A key feature is Code Mode, which reduces context window usage by approximately 98% by replacing hundreds of individual tool definitions with three meta-tools that allow LLMs to discover and orchestrate calls via JavaScript in a secure sandbox.

MCP Bridge by Appfactor is designed for platform engineers, AI engineers, and enterprise organizations that need to connect their existing API landscape to AI agents quickly and securely. It enables teams to expose internal APIs to AI agents without maintaining individual MCP adapters for each service, making it particularly valuable for production AI deployments that require governed tool access and observability.