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.

123 tools checked by hand, updated November 2026. What is BYOK?

OpenAI 112Anthropic 89Google Gemini 83Ollama 46OpenRouter 45DeepSeek 35All providers

All BYOK tools

123 tools, newest first
  • iTrans

    Free · macOS · Open source

    Visit

    Free, open-source macOS menu bar translator for selected text that sends requests straight to DeepSeek with your own API key.

    Works with:DeepSeek

  • Caotang

    Free · Web · Open source

    Visit

    Free, local-first browser writing studio for novels and scripts, with an AI agent that runs on your own Anthropic, OpenAI, Google, OpenRouter or local model key.

    Works with:AnthropicOpenAIGoogle GeminixAI+5 more

  • Infinity

    Free · macOS

    Visit

    Free Mac AI chat app with git-style branching: fork any part of an answer into its own thread, ask up to four models at once, and use your own keys or local models.

    Works with:OpenAIAnthropicGoogle GeminixAI+7 more

  • Laya

    Free · macOS, Windows, Linux · Open source

    Visit

    Open-source, local-first desktop command center that turns Slack, Gmail, GitHub, Jira and calendar notifications into AI-drafted action cards, using local models or your own API keys.

    Works with:AnthropicOpenAIGoogle GeminiOllama+1 more

  • MergeJudge

    Free AI reviews on public repos; bring your own key for private repos · Web, Self-hosted · Open source

    Visit

    AI pull request reviewer offered as a hosted GitHub App or an open-source GitHub Action, running on your own Anthropic, OpenAI or OpenAI-compatible key, local Ollama, or rules only.

    Works with:AnthropicOpenAIOllama

  • Prismix

    Free · Web · Open source

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    Free, open-source web app for generating images with OpenAI, Google and Replicate models from one interface, with your API keys kept in your browser.

    Works with:OpenAIGoogle GeminiReplicate

  • Shizue

    Free · Chrome extension · Open source

    Visit

    Free, open-source Chrome side panel for AI chat, page summaries, bilingual video captions and in-tab tasks, running on your ChatGPT plan or your own OpenAI, Claude, Gemini or OpenRouter key.

    Works with:OpenAIAnthropicGoogle GeminiOpenRouter+1 more

  • Exody

    Free · macOS, iOS

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    Free autonomous coding agent for Mac that routes each step to Claude, GPT, Gemini, Grok or a local model using your own API keys, with no seat fee or markup.

    Works with:AnthropicOpenAIGoogle GeminixAI

  • OpenBUA

    Free · Chrome extension · Open source

    Visit

    Free, open-source Chrome extension that runs an AI browser agent in your own signed-in browser, starting on the Gemini free tier with your own key.

    Works with:Google Gemini

  • PockoBots

    Free (beta) · Android · Open source

    Visit

    Open-source AI coding agent and personal bots that run on your Android phone, powered by your own OpenAI, Anthropic, Gemini, Groq or OpenRouter key with no app subscription.

    Works with:OpenAIAnthropicGoogle GeminiGroq+1 more

  • Applye

    Free desktop core · macOS · Open source

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    Open-source, local-first desktop app for job searching that scores roles and drafts tailored CVs with your own Anthropic or DeepSeek key.

    Works with:AnthropicDeepSeek

  • BayesChat

    Free (50 messages/month) + $14.99 one-time Pro · iOS

    Visit

    Private iOS AI chat client that uses your own API key with any OpenAI- or Anthropic-compatible provider, plus MCP tools, memory and presets.

    Works with:OpenAIAnthropicOllama

  • Conduit

    Free · Windows, macOS, Linux · Open source

    Visit

    Open-source desktop AI app for agents, research, writing and slides that runs on your own keys from 23 providers or local models.

    Works with:AnthropicOpenAIGoogle GeminixAI+12 more

  • Kallamo

    Free · Windows, macOS, Linux · Open source

    Visit

    Local-first, open-source studio for roleplay and long-form fiction that runs on your own OpenAI, Anthropic, Gemini or OpenRouter key or local models.

    Works with:OpenAIAnthropicGoogle GeminiGoogle Vertex AI+4 more

  • Loopcut

    Free with your own key; paid plans for hosted models · macOS, Windows · Open source

    Visit

    Open-source AI agent inside Blender that runs on your own Anthropic or OpenAI-compatible key, a ChatGPT plan or a local model.

    Works with:AnthropicOpenAIOllamaLM Studio

  • Nib

    CLI · Open source

    Visit

    Open-source terminal coding agent built for cheap models, working with your own DeepSeek, OpenAI, OpenRouter or Groq key or local Ollama.

    Works with:DeepSeekOpenAIOpenRouterGroq+1 more

  • QuickDictate

    Free for personal use; work use $19.99 one-time or $1.99/month per PC · Windows

    Visit

    Hotkey speech-to-text for Windows that types into any app using your own ElevenLabs, Deepgram, OpenAI or Google Cloud key, or offline models.

    Works with:ElevenLabsDeepgramOpenAI

  • SoloMD

    Free · macOS, Windows, Linux · Open source

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    Free, open-source Markdown editor for desktop and mobile with built-in AI tools that run on your own key from 14 providers.

    Works with:OpenAIAnthropicGoogle GeminixAI+7 more

  • Verenu

    Free · Windows, macOS · Open source

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    Free, open-source AI dictation for Windows and macOS that transcribes and cleans up your speech with your own provider key or a local model.

    Works with:GroqOpenAI

  • Wavefunction

    Free · macOS · Open source

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    Minimal open-source coding agent for Mac that runs parallel subagents on your own API keys, a ChatGPT sign-in or local models.

    Works with:AnthropicOpenAIGoogle GeminiOpenRouter+2 more

  • Phở Chat

    Free with BYOK, Pro $10/month, Founder lifetime $59 (limited seats) · Web

    Visit

    AI research workspace for clinicians and researchers that cites real PubMed and DOI sources and labels unsourced claims, with BYOK support for zero markup.

    Works with:OpenAIAnthropicGoogle GeminiDeepSeek+1 more

  • 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

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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.