Vercel recently published a Model Context Protocol (MCP) adapter that makes it easy to spin up an MCP server on most major frameworks. Vapi is building an API for building real-time voice agents. They handle orchestration, scaling, and telephony to provide a completely model-agnostic and interchangeable interface for building agents.  Vapi rebuilt their MCP server on Vercel, letting users create agents, automate testing, analyze transcripts, build workflows, and give agents access to all of Vapi’s endpoints. Link to heading What are MCP servers? MCP servers are integrations for AI models to access external capabilities. Rather than thinking about MCP like a REST API, you can instead think of it as tailored toolkit that helps an AI achieve a particular task. There may be multiple APIs and other business logic used behind the scenes for a single MCP tool. If you are already familiar with tool-calling in AI , MCP is a way to invoke tools hosted on a different server.…