Anthropic’s developer API for the Claude family of large language models, offering chat, vision, tool-use and agentic capabilities.
A cloud-based API that lets developers integrate OpenAI’s cutting-edge language, image, and audio models into their own products via simple RESTful endpoints.
Gemini API lets developers call Google’s multimodal Gemini family of large language models—covering text, vision, audio and video—to generate, analyze and transform content in their own applications.
OpenRouter is a unified API gateway and marketplace that lets developers access, compare, and route requests across 400+ large-language models from 60+ providers through a single, fully OpenAI-compatible endpoint.
OpenAI-compatible REST API that lets developers access DeepSeek’s large-scale language models (e.g., **deepseek-chat**, **deepseek-reasoner**) through familiar `/chat/completions` and `/completions` endpoints.
xAI API gives developers OpenAI-compatible endpoints for the Grok family of language, vision and image-generation models.
One API is a self-hosted key-management and distribution gateway that unifies OpenAI-style access to dozens of LLM providers, enabling centralized quota, billing and user management through a single binary or Docker image.
LiteLLM is an open-source LLM gateway and Python SDK that lets developers call more than 100 commercial and open-source models through a single OpenAI-compatible interface, complete with cost tracking, rate-limiting, load-balancing and guardrails.
