Technology

Anthropic API

Programmatic access to Anthropic's Claude models (Opus, Sonnet, Haiku) for complex reasoning, vision, and tool-use applications.

The Anthropic API delivers programmatic access to the Claude model family (Opus, Sonnet, Haiku), enabling developers to integrate state-of-the-art AI into applications. Use the Messages API for conversational tasks, leveraging Claude 3.5 Sonnet for balanced performance or Claude 3 Opus for complex analysis. Key features include Tool Use (function calling), Vision capabilities for image analysis, and a large 200K token context window for extensive document processing. This API provides a powerful, reliable foundation for next-generation AI projects.

https://docs.anthropic.com

What builders pair with Anthropic API

Projects using both technologies. Select a pairing to see a project.

Built with Anthropic API

OpenAI API 45 shared projects Python 19 shared projects FastAPI 10 shared projects Next 10 shared projects Claude Code 7 shared projects Gemini 6 shared projects

12 more pairings

React 6 shared projects TypeScript 6 shared projects Node 5 shared projects LangChain 4 shared projects Supabase 4 shared projects AWS 3 shared projects Bun 3 shared projects Claude Sonnet 3 shared projects Google Cloud Platform 3 shared projects LangGraph 3 shared projects LLM 3 shared projects MCP 3 shared projects

Pairing: OpenAI API

Photo from the event — Event photo

Self-Hosting Open Weight Models: What It Actually Cost Us in Production

San Diego · August 20, 2026

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