# zurelay > One OpenAI- and Anthropic-compatible API for Claude, GPT, Gemini, Grok, DeepSeek, Nano Banana, GPT Image and Seedance, at a fraction of each lab's price. zurelay is a drop-in API: keep the OpenAI or Anthropic SDK you use and change the base URL and the key. - OpenAI-compatible base URL: https://api.zurelay.com/v1 (chat, images, video, models) - Anthropic-compatible base URL: https://api.zurelay.com (POST /v1/messages, for Claude models) - Authentication: `Authorization: Bearer zr_live_…` or `x-api-key: zr_live_…` - Model IDs and what each reads: GET https://api.zurelay.com/v1/models. With live prices: https://zurelay.com/docs/models.md - Every docs page in one file: https://zurelay.com/llms-full.txt ## Get started - [Introduction](https://zurelay.com/docs.md): One OpenAI- and Anthropic-compatible API for Claude, GPT, Gemini, Grok, DeepSeek, Nano Banana, GPT Image and Seedance, at a fraction of each lab's price. - [Quickstart](https://zurelay.com/docs/quickstart.md): Make your first request in two minutes: create a key, point an SDK at zurelay, send a message. - [API keys and authentication](https://zurelay.com/docs/authentication.md): How to send your API key, keep it safe, and what each key can be limited to. - [Models](https://zurelay.com/docs/models.md): Every model on zurelay with its ID, what it reads (images, PDFs, audio, video), its context window and its price. ## Chat - [Chat completions](https://zurelay.com/docs/chat.md): POST /v1/chat/completions: messages, streaming, tool calling, structured output, reasoning effort and usage. - [Images, PDFs, audio and video input](https://zurelay.com/docs/multimodal.md): Send pictures, documents, recordings and clips to the models that read them, as data or links, in OpenAI or Anthropic format. - [Anthropic Messages and Claude Code](https://zurelay.com/docs/anthropic.md): POST /v1/messages for Claude models with the Anthropic SDKs, Claude Code and anything else that speaks Anthropic's API. ## Images - [Image generation](https://zurelay.com/docs/images.md): POST /v1/images/generations: prompts, resolutions, aspect ratios, pixel sizes, response formats and prices. - [Image editing and reference images](https://zurelay.com/docs/image-editing.md): Edit a picture or combine several: POST /v1/images/edits (OpenAI's multipart form or JSON) and reference images on generations. - [Nano Banana](https://zurelay.com/docs/nano-banana.md): Everything about Nano Banana Pro and Nano Banana 2 on zurelay: sizes, prices, up to 14 reference images, editing, text in images and prompting. - [GPT Image](https://zurelay.com/docs/gpt-image.md): GPT Image 2, 2.5 Flare and 2.5 Sunburst on zurelay: sizes, quality, editing with up to 16 images. ## Video - [Video generation](https://zurelay.com/docs/video.md): POST /v1/videos and polling: prompts, length, resolution, aspect ratio, audio, start and end frames, reference images and prices. - [Seedance](https://zurelay.com/docs/seedance.md): Seedance 2.5, 2.0, 2.0 Fast and 2.0 Mini on zurelay: which to pick, image-to-video, up to 9 reference images and prompting. ## Platform - [Smart routing](https://zurelay.com/docs/smart-routing.md): When a model is down, its closest alternative answers instead of an error. Automatic or your own rules, per key or per request. - [Key limits and rules](https://zurelay.com/docs/key-rules.md): Monthly and daily budgets, rate limits, expiry, allowed models and allowed IP addresses for each API key. - [Errors](https://zurelay.com/docs/errors.md): Every error zurelay returns, what it means and what to do about it. - [Reliability, retries and timeouts](https://zurelay.com/docs/reliability.md): How zurelay keeps requests answered, how long it waits, and when your client should retry. - [Pricing and billing](https://zurelay.com/docs/billing.md): Prepaid credit, how tokens, images, media and video seconds are counted, failed requests, and the request log. ## Tools - [Integrations](https://zurelay.com/docs/integrations.md): Set up Claude Code, Cursor, Cline, the OpenAI and Anthropic SDKs, LangChain, n8n and more with zurelay. - [Claude Code](https://zurelay.com/docs/integrations/claude-code.md): Anthropic’s coding agent for the terminal and IDE. - [OpenCode](https://zurelay.com/docs/integrations/opencode.md): Open-source coding agent for the terminal. - [Cursor](https://zurelay.com/docs/integrations/cursor.md): The AI code editor. Chat and agent on your key. - [Cline](https://zurelay.com/docs/integrations/cline.md): Autonomous coding agent for VS Code and JetBrains. - [Kilo Code](https://zurelay.com/docs/integrations/kilo-code.md): Open-source coding agent for VS Code and CLI. - [Continue](https://zurelay.com/docs/integrations/continue.md): Open-source assistant for VS Code and JetBrains. - [Aider](https://zurelay.com/docs/integrations/aider.md): AI pair programming in your terminal. - [Zed](https://zurelay.com/docs/integrations/zed.md): The fast editor with a built-in agent panel. - [OpenAI Node SDK](https://zurelay.com/docs/integrations/openai-node.md): Official OpenAI library for TypeScript and JS. - [OpenAI Python SDK](https://zurelay.com/docs/integrations/openai-python.md): Official OpenAI library for Python. - [Anthropic SDK](https://zurelay.com/docs/integrations/anthropic-sdk.md): Official Claude libraries for Python and TS. - [Vercel AI SDK](https://zurelay.com/docs/integrations/vercel-ai-sdk.md): Streaming, tools and UI hooks for TypeScript. - [LangChain](https://zurelay.com/docs/integrations/langchain.md): Agents and LangGraph, in Python or JavaScript. - [LlamaIndex](https://zurelay.com/docs/integrations/llamaindex.md): RAG and document agents over your own data. - [cURL](https://zurelay.com/docs/integrations/curl.md): Plain HTTP, for any language or a quick test. - [Hermes Agent](https://zurelay.com/docs/integrations/hermes-agent.md): Nous Research’s agent for terminal and chat apps. - [OpenClaw](https://zurelay.com/docs/integrations/openclaw.md): Open-source personal assistant on your devices. - [Open WebUI](https://zurelay.com/docs/integrations/open-webui.md): Self-hosted, ChatGPT-style chat for your team. - [LibreChat](https://zurelay.com/docs/integrations/librechat.md): Open-source, multi-user chat with agents. - [LobeHub](https://zurelay.com/docs/integrations/lobehub.md): Open-source AI workspace, formerly LobeChat. - [Cherry Studio](https://zurelay.com/docs/integrations/cherry-studio.md): A desktop AI client for Windows, macOS and Linux. - [SillyTavern](https://zurelay.com/docs/integrations/sillytavern.md): Local-first frontend for character chat. - [n8n](https://zurelay.com/docs/integrations/n8n.md): Workflow automation with AI agent nodes. - [Dify](https://zurelay.com/docs/integrations/dify.md): AI workflows, agents and RAG on a canvas. ## Optional - [Model pages](https://zurelay.com/models): one page per model with prices, speed, status and examples. - [Support](mailto:support@zurelay.com): support@zurelay.com, or Support in the dashboard.