This blog was originally published on Descope . OpenAI's Custom GPTs offer a powerful way to create AI agents that can interact directly with your APIs through natural language conversations. Imagine you have a deployed FastAPI application that implements DevOps tools such as triggering CI/CD workflows, getting deployment logs, usage analytics, and other operational tasks. While integrating your API with an LLM sounds like a perfect task for a Model Context Protocol (MCP) server, MCP servers can be complex to implement and maintain, often posing security challenges that necessitate external middleware. Even FastAPI MCP wrappers introduce routing changes, CORS policies, and deployment overhead that quickly becomes its own project. With Descope Inbound Apps , you're given a much simpler approach to establishing an OAuth compliant connection between your API and a custom GPT.…