> For the complete documentation index, see [llms.txt](https://docs.fastrouter.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fastrouter.ai/integrations.md). # Integrations - [Coding Assistants](https://docs.fastrouter.ai/integrations/coding-assistants.md): Use FastRouter as an OpenAI-compatible provider inside your coding assistant. One key, 100+ models, full observability and cost control. - [Aider](https://docs.fastrouter.ai/integrations/coding-assistants/aider.md): Track usage, control costs, and add guardrails to your Aider coding sessions - [Claude Code](https://docs.fastrouter.ai/integrations/coding-assistants/claude-code.md): This guide walks you through setting up Claude Code to work with FastRouter.ai as your API provider. - [Codex CLI](https://docs.fastrouter.ai/integrations/coding-assistants/codex-cli.md): Integrating Codex CLI with FastRouter. - [Cursor](https://docs.fastrouter.ai/integrations/coding-assistants/cursor.md): Track usage, control costs, and add guardrails to your Cursor AI editor - [Cline](https://docs.fastrouter.ai/integrations/coding-assistants/cline.md): Track usage, control costs, and add guardrails to your Cline coding agent - [Roo Code](https://docs.fastrouter.ai/integrations/coding-assistants/roo-code.md): Track usage, control costs, and add guardrails to your Roo Code coding agent - [OpenCode](https://docs.fastrouter.ai/integrations/coding-assistants/opencode.md): Track usage, control costs, and add guardrails to your OpenCode coding agent - [DeepSeek Reasonix CLI](https://docs.fastrouter.ai/integrations/coding-assistants/deepseek-reasonix-cli.md): Integrating DeepSeek Reasonix CLI with FastRouter. - [Kilo Code](https://docs.fastrouter.ai/integrations/coding-assistants/kilo-code.md): Track usage, control costs, and add guardrails to your Kilo Code coding sessions - [DeepSeek Reasonix CLI](https://docs.fastrouter.ai/integrations/coding-assistants/deepseek-reasonix-cli-1.md): Route DeepSeek Reasonix CLI through FastRouter for unified model access, observability, failover, and organizational controls. - [XCode](https://docs.fastrouter.ai/integrations/coding-assistants/xcode.md): Track usage, control costs, and add guardrails to your Xcode AI coding sessions. - [Agents](https://docs.fastrouter.ai/integrations/agents.md): Route any Python agent framework through FastRouter. One key, 100+ models, and full cost visibility across every agent call. - [AutoGen](https://docs.fastrouter.ai/integrations/agents/autogen.md): Track usage, control costs, and add guardrails to your AutoGen multi-agent apps - [Agno](https://docs.fastrouter.ai/integrations/agents/agno.md): Track usage, control costs, and add guardrails to your Agno agents - [CrewAI](https://docs.fastrouter.ai/integrations/agents/crewai.md): Track usage, control costs, and add guardrails to your CrewAI multi-agent crews - [Langgraph](https://docs.fastrouter.ai/integrations/agents/langgraph.md): Track usage, control costs, and add guardrails to your LangGraph agents - [OpenAI Agent SDK](https://docs.fastrouter.ai/integrations/agents/openai-agent-sdk.md): Track usage, control costs, and add guardrails to your OpenAI Agents SDK applications - [OpenClaw](https://docs.fastrouter.ai/integrations/agents/openclaw.md) - [Running Hermes Agent with FastRouter](https://docs.fastrouter.ai/integrations/agents/running-hermes-agent-with-fastrouter.md) - [Pydantic AI](https://docs.fastrouter.ai/integrations/agents/pydantic-ai.md): Track usage, control costs, and add guardrails to your Pydantic AI agents - [App](https://docs.fastrouter.ai/integrations/app.md): Point ready-to-run agent apps and chat gateways at FastRouter. Install once, run a setup command, get 100+ models with full cost visibility. - [Instructor](https://docs.fastrouter.ai/integrations/app/instructor.md): Track usage, control costs, and add guardrails to your Instructor structured outputs - [LlamaIndex](https://docs.fastrouter.ai/integrations/app/llamaindex.md): Track usage, control costs, and add guardrails to your LlamaIndex applications - [LangChain](https://docs.fastrouter.ai/integrations/app/langchain.md): Track usage, control costs, and add guardrails to your LangChain applications - [n8n](https://docs.fastrouter.ai/integrations/app/n8n.md): Track usage, control costs, and add guardrails to your n8n AI workflows - [Open WebUI](https://docs.fastrouter.ai/integrations/app/open-webui.md): Track usage, control costs, and add guardrails to your Open WebUI deployment - [Scalekit](https://docs.fastrouter.ai/integrations/app/scalekit.md): Add per-user OAuth tool calling to your FastRouter agent with Scalekit. Gmail, GitHub, Slack, and more, with zero custom OAuth code. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.fastrouter.ai/integrations.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.