email verification api javascript
Email verification API JavaScript
Use native fetch in browser-based tools or server-side JavaScript runtimes to validate addresses.
Short setup with one HTTP request.
Easy to wire into forms, jobs, or services.
Works well with server-side validation before signup.
fetch("https://your-domain.com/api/v1/[email protected]", {
headers: { "X-Api-Key": "ev_your_key_here" }
}).then(r => r.json()).then(console.log);JavaScript integration
This example shows a direct REST call with a single access key and a JSON response.
Recommended flow
Validate the email on the server, show a helpful message if the result is risky or disposable, and only create the account after a clean result.
Implementation checklist
Keep the key server-side, use a timeout on the request, and surface a clear error state if the API returns an invalid or disposable result.
Operational notes
Separate staging from production and log only the fields needed for troubleshooting, not secrets or raw credentials.
Integration pattern
Use a server-side API key, validate on the backend, and return a short JSON result to your signup or import flow. That keeps secrets out of the browser and lets you enforce policy before you create user records.
Production concerns
The important pieces are rate limits, error codes, billing state, and clear response shapes. If a verification API is hard to integrate or hard to explain, developers will either skip it or wire it incorrectly.
FAQ
Do I need a library?
No. A simple fetch or HTTP client is enough.
Should I log responses?
Yes, but avoid logging secrets or raw credentials.
Do these pages replace docs?
No. They support discovery, search intent, and onboarding.
Why keep the code example short?
Because developers need the shape of the request, not a wall of boilerplate.