Public API Hub
Developer APIs Directory
Connect your AI models and applications to rich data. Browse free and public APIs covering finance, weather, machine learning, nutrition, geolocation, and general utilities.
Anthropic Messages API
Anthropic•Pay-as-you-go (per token)
API for Claude 3.5 Sonnet, Claude 3.5 Haiku, and Claude 3 Opus. Known for exceptional reasoning, large context windows (200k+ tokens), and tool/function execution.
claude reasoning agentic
Category: Text Generation
DeepSeek API
DeepSeek•Pay-as-you-go (extremely cheap)
Highly cost-effective API for DeepSeek-V3 and DeepSeek-Coder. Fully OpenAI-compatible endpoint with extremely low token pricing.
llm coding cheap
Category: Text Generation
OpenAI Chat Completions API
OpenAI•Pay-as-you-go (per token)
API for GPT-4o, GPT-4o-mini, and GPT-4 models. Supports text generation, multimodal inputs (images), structured JSON outputs, function calling, and streaming.
llm chat multimodal
Category: Text Generation