AI tools that work with your own API key (BYOK)

Bring your own OpenAI, Claude, Gemini or OpenRouter key: you pay the provider directly at API prices, with no markup, and your prompts skip the middleman.

102 tools checked by hand, updated October 2026. What is BYOK?

OpenAI 94Anthropic 73Google Gemini 69OpenRouter 35Ollama 34Mistral 29All providers

All BYOK tools

102 tools, newest first
  • AirmailAI

    Web, Chrome extension · Open source

    Visit

    Open-source BYOK chat app for desktop Chromium browsers that sends your OpenAI, Anthropic, Gemini or OpenRouter key straight to the provider.

    Works with:OpenAIAnthropicGoogle GeminiOpenRouter

  • Bees

    Free to start · macOS, Windows, Linux · Open source

    Visit

    Open-source multi-agent platform that runs agent teams on your own computers with local Ollama models or your own Claude and OpenAI keys.

    Works with:OllamaAnthropicOpenAI

  • Kodus

    Free Community plan; Teams $10/developer/month · Web, Self-hosted · Open source

    Visit

    Open-source AI code review (a CodeRabbit alternative) that runs on your own OpenAI, Anthropic, Gemini or OpenAI-compatible model key with zero markup.

    Works with:OpenAIAnthropicGoogle Gemini

  • OpenDesign

    Free desktop app with BYOK; paid plans for hosted models · macOS, Windows · Open source

    Visit

    Open-source AI design agent workspace (a Claude Design alternative) that works with your own API key or your local coding agent, no account needed.

    Works with:AnthropicOpenAIAzure OpenAIGoogle Gemini+2 more

  • OpenDocBot

    Free for up to 30 users; commercial license above that

    Visit

    Client-side AI agent for Word, Excel and PowerPoint that runs on your own OpenAI, Anthropic, Gemini, DeepSeek or OpenRouter key, or a local Ollama model.

    Works with:OpenAIAnthropicGoogle GeminiDeepSeek+2 more

  • OxideTerm

    Free · macOS, Windows, Linux · Open source

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    Open-source SSH and remote-server workspace with a BYOK AI assistant that uses your OpenAI, Anthropic, Gemini, DeepSeek or Ollama key.

    Works with:OpenAIAnthropicGoogle GeminiDeepSeek+1 more

  • Shotluma

    Free · Web · Open source

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    Free, open-source App Store screenshot editor whose AI generation runs in the browser on your own Gemini, Qwen, OpenAI, Anthropic or xAI key.

    Works with:Google GeminiQwenOpenAIAnthropic+1 more

  • SideNote Pro

    30-day free trial, then $49 one-time · Windows

    Visit

    Docked AI assistant for Windows 10 and 11 that works with your own OpenAI, Anthropic, Gemini, DeepSeek or OpenRouter key, or local Ollama and LM Studio models.

    Works with:OpenAIOpenRouterAnthropicGoogle Gemini+3 more

  • Whytap

    Free · macOS · Open source

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    Free, open-source Mac notch app with voice input, an AI agent and notes that runs on your own OpenAI, Anthropic, OpenRouter, Deepgram or ElevenLabs keys.

    Works with:OpenAIAnthropicOpenRouterDeepgram+1 more

  • 5ire

    Free, open source · macOS, Windows, Linux · Open source

    Visit

    Free, open-source desktop AI assistant and MCP client that works with your own keys for OpenAI, Claude, Gemini, DeepSeek and more.

    Works with:OpenAIAzure OpenAIAnthropicGoogle Gemini+5 more

  • Aider

    Free, open source · CLI · Open source

    Visit

    AI pair programming in your terminal. Works with your own Anthropic, OpenAI, DeepSeek and other model keys.

    Works with:AnthropicOpenAIDeepSeek

  • AnythingLLM

    Free · macOS, Windows, Linux · Open source

    Visit

    Private AI app for chatting with your documents. Runs local models or connects to OpenAI, Anthropic, Gemini and others with your key.

    Works with:OpenAIAzure OpenAIAnthropicGoogle Gemini+9 more

  • big-AGI

    Free; Pro $9/month · Web · Open source

    Visit

    Multi-model AI workspace that runs, compares and merges answers from many providers using your own API keys.

    Works with:OpenAIAnthropicGoogle GeminixAI+14 more

  • BoltAI

    One-time purchase, free trial · macOS, iOS

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    Native Mac and iOS AI app that connects to OpenAI, Claude, Gemini, Mistral, Bedrock and local models with your own keys.

    Works with:OpenAIAnthropicGoogle GeminiMistral+6 more

  • ChatWise

    macOS, Windows

    Visit

    Desktop AI chat app for many LLMs with your own API keys, local data storage, web search and MCP tools.

    Works with:OpenAIAnthropicGoogle GeminiDeepSeek

  • Cline

    Free, open source · VS Code, JetBrains, CLI · Open source

    Visit

    Open-source AI coding agent for VS Code, JetBrains and the terminal. Bring your own key, endpoint or local model.

    Works with:AnthropicOpenAIGoogle GeminiOllama+1 more

  • Cursor

    Free plan + paid plans · macOS, Windows, Linux

    Visit

    AI code editor built on VS Code. Add your own OpenAI, Anthropic, Google, Azure or Bedrock key for chat and agent models.

    Works with:OpenAIAnthropicGoogle GeminiAzure OpenAI+1 more

  • Dify

    Free self-hosted Community Edition; paid cloud plans · Self-hosted, Web · Open source

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    Open-source platform for building AI workflows, agents and RAG apps with your own model provider keys. Cloud or self-hosted.

    Works with:OpenAIAnthropicGoogle GeminiAzure OpenAI+1 more

  • Elephas

    From $19/month, 7-day free trial · macOS

    Visit

    Private Mac AI app that answers questions from your own documents, using your own OpenAI, Claude or Gemini account.

    Works with:OpenAIAnthropicGoogle Gemini

  • goose

    Free, open source · macOS, Windows, Linux · Open source

    Visit

    Open-source AI agent for desktop and CLI that automates engineering tasks with any LLM and MCP extensions.

    Works with:AnthropicOpenAIGoogle GeminiOpenRouter+3 more

  • Jan

    Free, open source · macOS, Windows, Linux · Open source

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    Free, open-source ChatGPT alternative that runs models on your computer or connects to online models with your API key.

    Works with:OpenAIAnthropicGoogle GeminiMistral+2 more

  • Kilo Code

    Free to start, no markup on model usage · VS Code, JetBrains, CLI · Open source

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    Open-source AI coding agent for VS Code, JetBrains and the CLI. Use 500+ models at zero markup or bring your own keys.

    Works with:AnthropicOpenAIGoogle GeminiOpenRouter+8 more

  • n8n

    Free to self-host; paid cloud plans · Self-hosted, Web

    Visit

    Workflow automation platform for building AI agents with 500+ integrations, using your own model credentials. Self-host or cloud.

    Works with:OpenAIAnthropicGoogle GeminiMistral+6 more

  • Nanobrowser

    Free, open source · Chrome extension · Open source

    Visit

    Open-source Chrome extension AI agent that browses for you. Keys stay in your browser and go only to their provider.

    Works with:AnthropicOpenAIGoogle GeminiOpenRouter+4 more

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What is BYOK?

Bring your own key: the app uses an API key from your own AI provider account instead of its own.

Read the guide
  • No markup

    You pay OpenAI, Anthropic or Google their API price per token. Many BYOK apps are free or a one-time purchase.

  • Your data, your account

    Requests run under your own provider account and its data terms; many apps keep the key on your device.

  • Any model

    Switch between GPT, Claude, Gemini, DeepSeek or local models with Ollama without a new subscription.