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.

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

OpenAI 85Anthropic 64Google Gemini 62OpenRouter 31Mistral 29Ollama 29All providers

All BYOK tools

93 tools, newest first
  • 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

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    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

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    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

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    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

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    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

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    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

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    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

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    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

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    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

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    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

  • NewMax

    One-time lifetime license from $399 · macOS, Windows

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    Desktop AI agent that runs workflows on your local files with your own API key or a local model; nothing routes through NewMax.

    Works with:OpenAIAnthropicGoogle GeminiMistral+6 more

  • OpenCode

    Free, open source · CLI, Web · Open source

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    Open-source AI coding agent for the terminal, desktop and web that works with any model provider or local models.

    Works with:OpenAIAnthropicxAI

  • Open WebUI

    Free to self-host; enterprise plans · Self-hosted, Web · Open source

    Visit

    Self-hosted, open-source AI chat platform for Ollama and any OpenAI-compatible API, including Anthropic and Azure.

    Works with:OllamaOpenAIAnthropicAzure OpenAI

  • SillyTavern

    Free, open source · Self-hosted · Open source

    Visit

    Open-source LLM frontend for power users, popular for role-play and creative writing. Connects to many APIs with your own keys.

    Works with:OpenAIAnthropicGoogle GeminiOpenRouter+3 more

  • JetBrains AI Assistant

    Works with your own key; JetBrains AI plans optional · JetBrains

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    AI chat, code generation and completion inside JetBrains IDEs. Connect your own Anthropic, OpenAI or Gemini key, or local models.

    Works with:AnthropicOpenAIGoogle GeminiGoogle Vertex AI+2 more

  • Kerlig

    $49 one-time (1 Mac) · macOS

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    Mac app that adds AI to any app for emails, replies and proofreading, using 350+ models with your own API keys.

    Works with:OpenAIAnthropicGoogle GeminiGroq+7 more

  • LibreChat

    Free, open source · Self-hosted, Web · Open source

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    Open-source ChatGPT-style interface that brings OpenAI, Anthropic, Google, Bedrock, Mistral, OpenRouter and Ollama into one app.

    Works with:OpenAIAnthropicGoogle GeminiAzure OpenAI+4 more

  • Novelcrafter

    From $4/month, 21-day free trial · Web

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    Novel-writing platform with a story codex and optional AI help through your own OpenAI, Anthropic, OpenRouter or local models.

    Works with:OpenAIAnthropicGoogle GeminiMistral+3 more

  • Obsidian Copilot

    Free plugin; paid Premium plan · macOS, Windows, Linux

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    AI agent plugin for Obsidian that searches, organizes and writes notes with your own API keys or local models.

    Works with:OpenAIAnthropicGoogle GeminiOllama+1 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.