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

VisitAnythingLLM
Free · macOS, Windows, Linux · Open source
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










VisitNanobrowser
Free, open source · Chrome extension · Open source
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


VisitOpen WebUI
Free to self-host; enterprise plans · Self-hosted, Web · Open source
Self-hosted, open-source AI chat platform for Ollama and any OpenAI-compatible API, including Anthropic and Azure.
Works with:OllamaOpenAIAnthropicAzure OpenAI
VisitSillyTavern
Free, open source · Self-hosted · Open source
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
VisitJetBrains AI Assistant
Works with your own key; JetBrains AI plans optional · JetBrains
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


VisitNovelcrafter
From $4/month, 21-day free trial · Web
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
VisitObsidian Copilot
Free plugin; paid Premium plan · macOS, Windows, Linux
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




Privacy-first journaling app for Mac, iPhone, and iPad that uses your own AI provider API key, or a fully local model, to surface patterns in your entries.
Works with:OpenAIAnthropicGoogle GeminiOllama


VisitIdea Forge Pro
Free, no account required · Web
A free browser-based tool that puts a startup idea through seven validation gates and tells you which one it fails, before you write a line of code.
Works with:OpenAIOpenRouterDeepSeekGroq


A calmer BYOK chat client for iPhone and iPad. Bring your own API keys, keep control of your models, and avoid another bloated AI workspace.
Works with:OpenAIAnthropicGoogle GeminiDeepSeek+1 more



GEO citation checker that audits whether Claude, ChatGPT, Perplexity, and Gemini recommend your brand using your own API keys.
Works with:AnthropicOpenAIPerplexityGoogle Gemini+1 more



VisitIntrascope
From $59/month · Web, Android
Secure AI workspace for teams that centralizes access to major AI models, shared context, usage tracking, and company-level BYOK controls.
Works with:OpenAIAnthropicGoogle GeminiDeepSeek+3 more
VisitUnboundChat
Free download; optional Pro subscription · macOS, Windows, Linux
Privacy-first AI chat app for Windows and Android with local storage, encrypted sync, and BYOK access to OpenRouter, OpenAI, and Google models.
Works with:OpenRouterOpenAIGoogle Gemini

VisitMultimodelChat
$2/month or $39 one-time · Web
Multi-model AI chat platform that lets users bring encrypted API keys for GPT, Claude, Gemini, Grok, OpenRouter, and custom endpoints.
Works with:OpenAIAnthropicGoogle GeminixAI+3 more



VisitIacoletti Software
$49.99 one-time · Web, Windows
Suite of free BYOK web apps including AI media analysis, scam detection, document risk review, and creative tools. Bring your own API key, pay the provider directly.
Works with:AnthropicGoogle Gemini



VisitLightjams LED Mapper
Windows
Professional LED mapping software with OpenAI integration that lets you bring your own API key at no extra cost.
Works with:OpenAI



VisitSnapNutrition AI
Free with your own key; Auto Mode $2.99/month · iOS
Free AI calorie tracker for iPhone, iPad, and Apple Watch. Bring your own Anthropic or OpenAI API key for food recognition — no subscription, no ads.
Works with:OpenAIAnthropic

VisitAiAssistWorks
Free Lite plan; paid from $3/month · Web
AI add-on for Google Sheets, Docs, and Slides that lets you use 100+ AI models with your own API keys. Fill thousands of rows, generate slides, and automate tasks without AI formulas.
Works with:OpenAIAnthropicGoogle GeminiOpenRouter+1 more


VisitOpenRouter
Pay as you go; BYOK usage has a small fee
Unified API and marketplace for top AI models (OpenAI, Anthropic, Google, Mistral, Cohere, Meta), with routing, transparent pricing, and flexible billing/BYOK options.
Works with:OpenAIAnthropicGoogle GeminiMistral+2 more


VisitBridgeApp AI
Web, iOS, Android
A unified platform offering real-time communication, task management, and AI-enhanced collaboration with BYOK security.
Works with:OpenAI

Enhance your research with AI tools for exploration, brainstorming, and in-depth analysis in seconds.
Works with:OpenAIGoogle GeminiAnthropic

VisitChatbox AI
Web, macOS, Windows
AI client app for enhancing productivity and creativity with document, image, and code interactions. Supports major platforms.
Works with:OpenAIAnthropicDeepSeekGoogle Gemini

Enhance customer interactions with customizable conversational AI voice and chat solutions.
Works with:OpenAIAzure OpenAIElevenLabs


Visit16x Prompt
Free (10 prompts/day); paid license · macOS, Windows, Linux
AI-driven tool for prompt creation and code generation leveraging models like Claude & DeepSeek, optimized for developers.
Works with:OpenAIAnthropicDeepSeek

- Visit
BossChat AI
From $89/month or $2,799 lifetime · Web
Enhance your user experience with BossChat AI, offering responsive chatbots using ChatGPT API integration.
Works with:OpenAI



VisitChatBotKit
Web, CLI
Create and deploy conversational AI bots and agents across various platforms, offering flexibility through its Bring Your Own Key (BYOK) feature.
Works with:OpenAIMistral
VisitChatsistant
Free plan; paid from $10/month · Web
No-code AI chatbot builder utilizing Retrieval-Augmented Generation (RAG) technology, enabling businesses to create and deploy conversational AI solutions efficiently.
Works with:OpenAI



VisitPrompt Selected
Free · Chrome extension
Free browser extension that allows users to run custom ChatGPT prompts on any selected text, enhancing tasks like grammar correction, translation, summarization, and explanation.
Works with:OpenAI

Customizable AI coding assistant that enhances developer productivity with context-aware code completion, in-IDE chat, and a secure, fine-tuned toolbox for self-hosted or cloud environments.
Works with:OpenAIHugging Face

Strategic Response Management (SRM) and RFP software platform that empowers organizations to efficiently manage bids, proposals, and company knowledge.
Works with:OpenAIAzure OpenAI

Chat interface that enhances interactions with large language models (LLMs) by providing a user-friendly frontend, supporting multiple AI models, and offering features like chat management and prompt libraries.
Works with:OpenAIAnthropicGoogle GeminiMistral+1 more
Tool that generates personalized comments to enhance conversations and build connections on LinkedIn.
Works with:OpenAI

Writing assistant that enhances productivity by integrating multiple AI models, offering features like AI image generation and GPT-4 Vision capabilities.
Works with:OpenAIMistralAnthropicGoogle Gemini+1 more
VisitZeroTrusted.ai
Web, Self-hosted
Firewall solutions to protect sensitive data during interactions with large language models (LLMs), ensuring privacy and security.
Works with:OpenAIMetaGroq

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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 guideNo 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.