Call private APIs without building a backend.
Production-ready secure routing for modern applications. Built for enterprise workloads.
and more.You shouldn’t need a server just to hide a key.
Most frontend teams build a backend for one reason: keeping API credentials out of client code.
The Insecure Setup
Direct API call
headers: { 'Authorization': 'Bearer sk_live_...' }});
The Secure Setup
Secure bridge request
The security of a backend. The speed of a frontend.
Enterprise-grade API protection without the infrastructure.
Stop Leaking Keys
Frontend builds bake .env into public JavaScript. Salting keeps keys server-side so they never touch the browser or build artifacts.
Skip the Backend
Don't spin up a server just to hide one API key. Get a serverless gateway in seconds and focus on shipping.
Bypass CORS
Browser API calls often hit CORS. Salting handles the handshake and adds DDoS protection at the edge.
Paste. Encrypt. Ship.
No backend required. Get a secure endpoint in under a minute.
Paste Your Key
Paste your raw API key or endpoint into the dashboard. We encrypt it instantly.
Get Secure URL
Receive a unique endpoint 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 stack
Zero configuration. Swap the URL and go.
OpenAIAnthropic
GeminiStripeSupabase
Firebase
Vercel
ResendBuilt for modern architectures
Web apps, internal tools, and AI agents. One secure layer for all.
Single Page Apps
React, Vue, Next.js — keep API keys out of client bundles without spinning up a server.
Works with any framework CORS handled automatically Deploy to static hosts
No-Code & Internal Tools
Retool, Bubble, Webflow — call any API without exposing keys in your workspace.
Swap URLs, not code Rotate keys without redeploying Team-level access controls
AI Agents & Wrappers
Protect OpenAI and Anthropic quota from theft, abuse, and prompt extraction.
Hidden system prompts Per-user spend limits Usage analytics per endpoint
Your keys deserve serious infrastructure
Edge-deployed across multiple regions. Encrypted at rest and in transit.
For API platforms & providers
Stop leakage. Prevent abuse and unauthorized key sharing at the edge.
Stop key sharing
Detect and block users who share API keys across devices or IPs.
White-label gateway
Branded secure URLs (e.g. proxy.your-api.com) instead of raw keys.
Enforce usage limits
Per-user hard limits. No customer exceeds their paid tier.
Partner with Salting
Join our network of secured providers. We handle security so you can focus on 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. You can protect API keys from your frontend without any backend. Perfect for static sites, JAMstack, and serverless—keep 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 at any time. We never cut off your service without warning. Exceeding limits rate-limits requests per your plan; you can always upgrade for more capacity.
Try the demo on this page—paste an API key or endpoint URL and generate a secure link. For full access, sign up for a free account (no credit card). You get instant access to all features.
Start securing your APIs today
No credit card required. Get a secure endpoint in under a minute.