Every programmer has watched an LLM choke on a big blob of JSON: it forgets fields, invents others, and quietly gives up on the nested bits. quicktype does the opposite. The more JSON you hand it, the more certain it becomes about the types underneath—and now your coding agent can borrow that certainty.
quicktype MCP is a Model Context Protocol server that gives your coding agent the ability to understand JSON as humans do—by inferring its high-level shape and purpose.
Given JSON and a target language, quicktype returns type definitions (e.g. schema, classes, structs, interfaces) and serializers in the target language.
quicktype has written billions of lines of code that better understand data, and can help your agent do the same. The MCP server makes quicktype's capabilities available to AI coding assistants like Claude and Cursor, enabling them to work with JSON data more intelligently.
Try quicktype in your browser at app.quicktype.io, or add the MCP server to your AI assistant at mcp.quicktype.io.
