OpenAI API

GPT-5 series models, embeddings, and the Responses API with native MCP and tool use

Interfaces

1/5 verified

MCP servernot offered
OpenAPI specverifiedraw.githubusercontent.com/openai/openai-openapi/master/openapi.yaml
Skill filenot offered
llms.txtnot offered
Structured feednot offered

Verified means we fetched it and it answered. Claimed means it is listed but has not been reached yet.

Related services
Anthropic Claude API Claude models with tool use, the MCP connector, Agent Skills, and the Claude Agent SDK	5/5
Vercel AI Gateway Unified model endpoint with failover, spend limits, and observability, wired into the AI SDK	5/5
Google Gemini API Gemini multimodal models via Google AI Studio and Vertex AI, with function calling and MCP support	5/5
LiteLLM Open-source proxy and SDK exposing 100+ model providers behind one OpenAI-compatible API	5/5
OpenRouter One OpenAI-compatible endpoint in front of hundreds of hosted models, with automatic fallback and per-key spend limits	5/5
Hugging Face Inference Serverless and dedicated inference for open models, plus a hosted MCP endpoint over Hub tools	5/5