Your users connect their own API keys through Byoky. You get Claude, GPT-4, Gemini, and 12 more providers — without spending a cent on infrastructure.
Stop worrying about API bills killing your project. Your users connect their own AI keys through Byoky — you get the full power of Claude, GPT-4, Gemini, and 12 more providers without spending a cent on infrastructure.
Indie dev? Startup? Side project? It doesn't matter. If your users have API keys, you have a product. No billing integration, no usage caps, no margin pressure.
One click to connect. Stream AI responses through your wallet.
Drag an app between groups — the wallet translates on the fly.
No extension? Scan a QR code with the Byoky app. Keys proxy through your phone.
Share AI access without sharing your key. Set a budget, generate a link, revoke anytime.
Integrate with any AI provider using their native SDK. Just swap in Byoky's fetch — keys never touch your app.
npm install @byoky/sdk to add to an existing project · npx create-byoky-app to scaffold a new one
Works with official SDKs from Anthropic, OpenAI, Gemini, Mistral, and 11 more providers. Just swap in Byoky's fetch.
Full SSE streaming support through the extension proxy. No special handling needed.
Your server makes LLM calls through the user's browser via WebSocket. Keys never leave the extension — even server-side.
The Byoky Bridge lets CLI tools and desktop apps route through the wallet via a local HTTP proxy. Keys stay in the extension.
Let users share token access without sharing API keys. Relay-backed with budget caps, expiry, and instant revocation.
import Anthropic from '@anthropic-ai/sdk';
import { Byoky } from '@byoky/sdk';
const byoky = new Byoky();
const session = await byoky.connect({
providers: [{ id: 'anthropic', required: true }],
modal: true, // built-in connect UI with QR code
});
// Use the native Anthropic SDK — keys never exposed
const client = new Anthropic({
apiKey: session.sessionKey,
fetch: session.createFetch('anthropic'),
});Add the Byoky extension to Chrome or Firefox — or grab the iOS or Android app. Set a master password to encrypt your vault.
Paste API keys or add a Claude setup token. Everything is encrypted locally with AES-256-GCM. Multiple keys per provider.
Visit any Byoky-enabled app. Approve access in one click. Your keys stay in the vault — always.
15 providers supported. Bring credentials from any of them.
Chrome extensions that handle API keys have a track record of abuse. Byoky was built to be the exception.
Byoky encrypts keys locally with AES-256-GCM, proxies every request, and gives users full visibility into what apps access. Your users install it once and trust every app you build.
Security isn't a feature — it's the entire point.
Keys encrypted with PBKDF2 (600K iterations). 12-character minimum with real-time strength meter. Web Crypto API — no dependencies.
API keys never leave the extension process. Apps receive temporary session tokens. The extension proxies every request.
Every API request is logged with the app origin, provider, status, and timestamp. Complete visibility into credential usage.
Set token allowances per app — total or per provider. The proxy enforces limits so no app can overspend.
Share token access with anyone — your API key stays in your wallet. Requests relay through you. Budget-capped with instant revocation.
Export your vault as an encrypted .byoky file with a separate backup password. Import on any device.
No cloud. No telemetry. No tracking. Everything is stored on your device, encrypted behind your master password.
Drag an app between groups to swap which model it talks to — even across providers.
Bucket your connected apps into groups and pin each group to a credential. Move an app from a Claude group into a GPT group and the wallet transparently translates the request — Anthropic ↔ OpenAI ↔ Gemini ↔ Cohere. Request bodies, response bodies, and SSE streams are rewritten on the fly. Apps keep calling their preferred SDK; the wallet picks the upstream.
No code changes. Live sessions reroute the next request automatically. Run the same agent on Claude one day and GPT the next without touching a line of code. Try a new model without rewriting your prompts.
Connect any browser to your Byoky mobile wallet via QR code.
No browser extension needed. The web app shows a pairing code, you scan it with the Byoky iOS or Android app, and your keys proxy through your phone. Works on any browser, any computer. Keep the app open while using the web app.
const session = await byoky.connect({
providers: [{ id: 'anthropic' }],
useRelay: true,
modal: true, // built-in connect UI with QR code
});
// Works exactly the same as extension modeByoky is fully open source under the MIT license. Audit the code, contribute, or fork it.
Star on GitHubMIT License — free forever.
Install in 30 seconds. No account required.