OpenAI API
by OpenAI
Serves OpenAI models through the Responses and Chat Completions APIs, with function calling, file search, realtime voice, and remote MCP tools, for developers building model-backed apps.
Skills
Text Generation
Generates text, code, and structured JSON from prompts with OpenAI models through the Responses API.
Function Calling
Lets models call developer-defined functions described by JSON schema to reach application data and actions.
Remote MCP Servers
Gives models tools from remote MCP servers, or private ones through Secure MCP Tunnel, during a response.
File Search
Retrieves passages from uploaded files in vector stores with semantic and keyword search inside the Responses API.
Realtime API
Runs speech-to-speech voice sessions where the model works on audio directly, keeps state, and calls tools.
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