aid: anthropic-claude name: Anthropic Claude description: >- Anthropic Claude is a family of frontier large language models (Opus, Sonnet, Haiku) accessible via the Anthropic API for building AI assistants, agents, and integrations. The API supports streaming chat completions, tool use, vision, prompt caching, batch processing, the Files API, computer use, and the Model Context Protocol, with authentication via x-api-key headers and a base URL at api.anthropic.com. type: Index image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg tags: - Artificial Intelligence - Large Language Models - LLM - Generative AI - Chat - Agents - Claude url: >- https://raw.githubusercontent.com/api-evangelist/anthropic-claude/refs/heads/main/apis.yml created: '2026-05-11' modified: '2026-05-11' specificationVersion: '0.19' apis: - aid: anthropic-claude:messages-api name: Anthropic Claude Messages API description: >- REST API for sending messages to Claude models with support for streaming, tool use, vision, system prompts, prompt caching, and extended thinking. Authentication uses an x-api-key header with an anthropic-version header. humanURL: https://docs.anthropic.com/en/api/messages baseURL: https://api.anthropic.com tags: - Messages - Chat - Completions - Tool Use - Vision - Streaming properties: - type: Documentation url: https://docs.anthropic.com/en/api/messages - type: API Reference url: https://docs.anthropic.com/en/api/getting-started - type: OpenAPI url: openapi/anthropic-claude-openapi.yml - type: Getting Started url: https://docs.anthropic.com/en/api/getting-started common: - type: Website url: https://www.anthropic.com - type: Documentation url: https://docs.anthropic.com - type: API Reference url: https://docs.anthropic.com/en/api/getting-started - type: Console url: https://console.anthropic.com - type: Sign Up url: https://console.anthropic.com/login - type: Pricing url: https://www.anthropic.com/pricing - type: Models url: https://docs.anthropic.com/en/docs/about-claude/models - type: Authentication url: https://docs.anthropic.com/en/api/getting-started - type: Rate Limits url: https://docs.anthropic.com/en/api/rate-limits - type: Errors url: https://docs.anthropic.com/en/api/errors - type: Versioning url: https://docs.anthropic.com/en/api/versioning - type: Status url: https://status.anthropic.com - type: Support url: https://support.anthropic.com - type: Privacy Policy url: https://www.anthropic.com/legal/privacy - type: Terms of Service url: https://www.anthropic.com/legal/commercial-terms - type: GitHub Organization url: https://github.com/anthropics - type: Python SDK url: https://github.com/anthropics/anthropic-sdk-python - type: TypeScript SDK url: https://github.com/anthropics/anthropic-sdk-typescript - type: Cookbook url: https://github.com/anthropics/anthropic-cookbook - type: Claude Code url: https://www.anthropic.com/claude-code - type: Model Context Protocol url: https://modelcontextprotocol.io - type: Blog url: https://www.anthropic.com/news - type: X (Twitter) url: https://x.com/AnthropicAI - type: LinkedIn url: https://www.linkedin.com/company/anthropicresearch - type: YouTube url: https://www.youtube.com/@anthropic-ai features: - name: Frontier Models description: >- Access to Claude Opus, Sonnet, and Haiku families of large language models with industry-leading reasoning, coding, and agentic capabilities. - name: Tool Use description: >- Define custom tools that Claude can invoke during conversations to call external APIs, query databases, or execute code. - name: Vision description: >- Multi-modal input supports images alongside text for analysis, OCR, diagrams, and document understanding. - name: Prompt Caching description: >- Cache large prompts (system instructions, documents, examples) to reduce cost and latency on subsequent requests. - name: Streaming description: >- Server-sent events stream responses token-by-token for low-latency interactive experiences. - name: Batch API description: >- Submit large batches of asynchronous requests at 50 percent discount with results delivered within 24 hours. - name: Files API description: >- Upload and reference files for use across Messages, batches, and computer-use sessions. - name: Computer Use description: >- Allow Claude to control a virtual computer (screenshots, mouse, keyboard) to complete multi-step tasks autonomously. - name: Extended Thinking description: >- Enable extended reasoning steps for harder problems with transparent thinking traces. useCases: - name: AI Assistants and Chatbots description: >- Build conversational assistants for customer support, productivity, and knowledge work powered by Claude models. - name: Coding Agents description: >- Power software engineering agents that read, edit, run, and test code across large repositories. - name: Document Processing description: >- Extract, summarize, and analyze long documents using large context windows and vision capabilities. - name: Content Generation description: >- Generate marketing copy, technical writing, translations, and creative content at scale. - name: Agentic Workflows description: >- Orchestrate multi-step agent workflows using tool use, MCP servers, and computer use for end-to-end task automation. integrations: - name: Amazon Bedrock description: Access Claude models via the AWS Bedrock API - name: Google Cloud Vertex AI description: Access Claude models via Google Cloud Vertex AI - name: Model Context Protocol description: Open protocol for connecting Claude to external tools and data sources - name: LangChain description: First-class LangChain integration for chains and agents - name: LlamaIndex description: Use Claude as the LLM for RAG and indexing workflows maintainers: - FN: Kin Lane email: kin@apievangelist.com