@vibecodeapp/proxy

A transparent fetch proxy that auto-patches global fetch on import. Zero configuration required—just import and go.

Installation

bun add @vibecodeapp/proxy

Quick Start

import '@vibecodeapp/proxy'

// That's it! All fetch requests to supported AI APIs are now proxied.
const response = await fetch('https://api.openai.com/v1/chat/completions', {
  method: 'POST',
  headers: { 'Authorization': 'Bearer sk-...' },
  body: JSON.stringify({ model: 'gpt-4', messages: [...] })
})

Configuration

Environment Variables

Set your project ID via environment variable:

VIBECODE_PROJECT_ID=your-project-id

Programmatic Configuration

import { setProxyProjectId, setProxiedDomains } from '@vibecodeapp/proxy'

// Set project ID at runtime
setProxyProjectId('your-project-id')

// Override the list of proxied domains
setProxiedDomains([
  'api.openai.com',
  'api.anthropic.com',
  'custom-api.example.com'
])

Proxied Domains

By default, requests to these domains are routed through the proxy:

• api.openai.com
• api.anthropic.com
• api.x.ai
• amazonaws.com (includes Bedrock)
• generativelanguage.googleapis.com
• api.elevenlabs.io

The proxy also fetches an updated domain list from the server on initialization.

How It Works

1. Import-time patching: When you import the package, it immediately patches globalThis.fetch
2. URL matching: Each fetch request is checked against the list of proxied domains
3. Transparent routing: Matching requests are rewritten to go through proxy.vibecodeapp.com
4. Credential injection: Your project ID is added to proxied requests for authentication

Original:  https://api.openai.com/v1/chat/completions
Proxied:   https://api.openai.com.proxy.vibecodeapp.com/v1/chat/completions

API Reference

setProxyProjectId(projectId: string): void

Set the project ID used for authentication with the proxy.

setProxiedDomains(domains: string[]): void

Override the list of domains that should be routed through the proxy.

getOriginalFetch(): typeof fetch

Get the original, unpatched fetch function if you need to bypass the proxy.

import { getOriginalFetch } from '@vibecodeapp/proxy'

const originalFetch = getOriginalFetch()
await originalFetch('https://api.openai.com/...') // Bypasses proxy

Runtime Support

• ✅ Node.js
• ✅ Bun
• ✅ Deno

The package also patches undici when available for better Node.js SDK compatibility.

License

MIT