Vouch SDK for Node.js - Server-side email validation
npm install @vouch-in/nodeOfficial Vouch SDK for Node.js - Server-side email validation with higher rate limits.
``bash`
npm install @vouch-in/nodeor
yarn add @vouch-in/nodeor
pnpm add @vouch-in/node
`javascript
import { Vouch } from "@vouch-in/node";
// Initialize with your server API key
const vouch = new Vouch(
process.env.VOUCH_PROJECT_ID,
process.env.VOUCH_SERVER_KEY,
);
// Validate an email
const result = await vouch.validate("user@example.com", {
ip: req.ip,
userAgent: req.headers["user-agent"],
});
if (result.recommendation === "allow") {
// Create user account
console.log("Email is valid!");
} else {
console.log("Validation failed:", result.recommendation);
}
`
`javascript
import express from "express";
import { Vouch } from "@vouch-in/node";
const app = express();
const vouch = new Vouch(PROJECT_ID, SERVER_KEY);
app.post("/api/signup", async (req, res) => {
const { email } = req.body;
const result = await vouch.validate(email, {
ip: req.ip,
userAgent: req.get("user-agent"),
});
if (result.recommendation !== "allow") {
return res.status(400).json({ error: "Email validation failed" });
}
// Create user...
res.json({ success: true });
});
``
- Higher rate limits (5,000/hour vs 1,000/hour for client)
- No domain restrictions
- IP and User-Agent override
- Works with Express, Fastify, Koa, etc.
- Serverless compatible (AWS Lambda, Vercel, Cloudflare Workers)
| Feature | Client Key | Server Key |
| ------------------- | ------------ | ------------ |
| Domain Restrictions | Yes | No |
| Rate Limits | 1,000/hour | 5,000/hour |
| Override IP/UA | No | Yes |
| Use Case | Browser apps | Backend APIs |
For complete documentation, examples, and API reference, visit:
- @vouch-in/js - Browser SDK
- @vouch-in/next - Next.js integration
- @vouch-in/remix - Remix integration
Proprietary. Copyright (c) Vouch. All rights reserved.
See the SDK License Agreement for terms.