Call Private APIs
directly
from your Frontend.
Building with V0, Cursor, or Bolt? Don't create a backend just to hide a key. Proxy your requests through Salting and ship instantly.
Stop Exposing Your Keys
Don't let complex backend setup block your frontend velocity.
The Insecure Setup
Direct API Call
The Secure Setup
Secure Bridge Request
Why Choose SaltingIO?
The security of a backend. The speed of a frontend.
Stop Leaking Keys
Frontend frameworks bake .env variables into your public JavaScript. Salting keeps keys strictly server-side, so they never touch the browser or your build artifacts.
Skip the Backend
Don't spin up a Node.js server just to hide one API key. Salting gives you a serverless gateway instantly, so you can focus on shipping.
Bypass CORS Errors
Calling APIs from the browser often fails due to CORS errors. Salting handles the handshake for you and adds DDoS protection automatically.
How It Works
Secure your API keys and endpoints in three simple steps
Paste Your Key
Paste your raw API key or endpoint into the dashboard. We encrypt it instantly.
Get Bridge URL
Receive a unique 'salting.io' link that acts as a secure proxy for your requests.
Ship to Production
Swap the URL in your frontend code. No backend setup, no leaked keys.
Works with your modern Stack
Zero configuration required. Just swap the URL.
Anthropic
Gemini
Stripe
Supabase
Firebase
Vercel
ResendAnthropicGeminiStripeSupabaseFirebaseVercelResendBuilt for Modern Architectures
Whether you're shipping a web app, mobile binary, or AI agent.
Single Page Apps
Perfect for React, Vue, and Next.js. Stop exposing keys in your client-side bundles.
Works with all frameworks Zero backend config Instant key rotation
Mobile & IoT
Hardcoded keys in mobile binaries (APK/IPA) are easily reverse-engineered. Salting protects them remotely.
No app store updates needed Secure binary distribution Device-level rate limiting
AI Agents & Wrappers
Building a wrapper around OpenAI or Anthropic? Protect your quota from theft and abuse.
Hidden system prompts Cost control per user Usage analytics
Built for Scale
Global edge network delivering sub-millisecond latency.
Global Latency
Daily Requests
Uptime SLA
For API Platforms & Providers
Stop monetization leakage. Prevent abuse, scraping, and unauthorized key sharing at the edge.
Stop Key Sharing
Detect and block users who share their API keys across multiple devices or IP addresses.
White-Label Gateway
Give your users a branded secure URL (e.g., 'proxy.your-api.com') instead of raw keys.
Enforce Usage Limits
Hard limits on a per-user basis. Ensure no customer exceeds their paid tier.
Partner with Salting
Join our network of secured providers. We handle the security infrastructure so you can focus on building your API.
Frequently Asked Questions
Everything you need to know about SaltingIO
Salting adds less than 30ms of overhead. We run on a global edge network close to your users.
No! That's the beauty of SaltingIO. You can protect your API keys directly from your frontend application without needing any backend infrastructure. This makes it perfect for static sites, JAMstack applications, and serverless functions where you want to keep your API keys secure without building a backend.
No. We are a pass-through proxy. We do not store or log your response bodies, only metadata for analytics.
Yes. You can proxy requests to any HTTP endpoint, including your own custom servers or third-party APIs.
We'll notify you when you're approaching your limits, and you can upgrade your plan at any time. We never cut off your service without warning. If you exceed limits, requests will be rate-limited according to your plan, but you'll always have the option to upgrade for more capacity.
Getting started is easy! You can try our demo right here on the homepage—just paste your API key or endpoint URL and generate a secure link. For full access, sign up for a free account. No credit card required. You'll get instant access to all features and can start protecting your APIs immediately.