Email Validation API - Verify Addresses Before They Bounce
Real-time email verification API for developers who need clean data in their apps and workflows.
Validate Emails at the Point of Entry
Block invalid and risky addresses before they reach your database.
No credit card required.
Bad Email Data Breaks Everything Downstream
Invalid emails do not just bounce. They create bigger problems:
- Database pollution. Bad addresses corrupt user data and skew any metric tied to it.
- Sender reputation damage. Hard bounces signal poor list hygiene, and transactional emails can start landing in spam.
- Scaling nightmares. Manual cleaning does not work when you process hundreds of signups per hour.
- Future deliverability debt. Every invalid address you store today is a bounce waiting to happen later.
Catching bad emails after they enter your system always costs more than blocking them at entry.
Validate Emails at the Point of Entry
BoltRoute's email validation API catches invalid addresses before they reach your database.
Verify at signup, checkout, or form submission. The API returns actionable results so your code can route each address as Valid, Invalid, Risky, Catch-all, Disposable, or Role-based.
One API call. Clean data in. Bad data out.
Email Verification API Built for Developers
| Feature | Benefit |
|---|---|
| REST API + Webhooks | Integrate quickly and receive async callbacks for bulk jobs without polling. |
| Single and Bulk Verification | Validate one address per request or process thousands in a batch. |
| Detailed Diagnostics | Each response includes SMTP validation, syntax checks, domain health, and risk scoring for routing decisions. |
| Configurable Catch-All Handling | Accept, flag, or reject risky addresses based on your tolerance. |
BoltRoute gives you the raw verification results. You control the application logic.
Get Started in 3 Steps
- Sign up and get your API key.
Start with 100 free verifications and no credit card required. - Send a request.
POST an email address to the endpoint and get a JSON response. - Act on the results.
Route valid emails into your system and block, flag, or queue the rest based on your rules.
From signup to first API call in under five minutes.
Fits Into Your Existing Stack
You can connect BoltRoute with:
- Zapier - Trigger verifications from 5,000+ apps
- n8n - Build custom verification workflows with full control
- Google Sheets - Verify lists without leaving your spreadsheet
- Direct API - Integrate with any platform that supports HTTP
No vendor lock-in. Your data stays yours.
Simple, Credit-Based Pricing
| Plan | Credits | Price |
|---|---|---|
| Basic | 10,000 | $29/mo |
| Professional | 100,000 | $129/mo |
| Enterprise | 500,000 | $279/mo |
| Custom | 1M+ | Contact us |
Credits never expire. Use them when you need them.
Start with 100 free verifications and no credit card required.
Start Validating Emails in Your App Today
Stop bad data at the source. BoltRoute's email validation API gives your code what it needs to keep your database clean.
No credit card required. First API call in minutes.
Frequently Asked Questions
What does the email validation API return?
Each request returns a JSON response with result status (Valid, Invalid, Risky, Catch-all, Disposable, Role-based), SMTP validation, syntax check, domain health, and risk score. You get raw data to build your own routing logic.
How fast is the email verification API response?
Single-email verification returns results in milliseconds for most requests. Response time varies based on the receiving mail server, but typical lookups complete in under one second.
Can I validate emails in bulk via API?
Yes. You can submit batch requests through the API and receive results via webhook when processing completes. For file-based uploads, BoltRoute also supports CSV, Excel, and text files through the dashboard.
Do you support catch-all and role-based email detection?
Yes. The API flags both catch-all domains, which accept any address, and role-based emails like info@ or support@. You can configure how your system handles each type.
What happens after my 100 free verifications?
You need to upgrade to a paid plan to continue. Plans start at $29/month for 10,000 credits. Credits never expire, so you only pay for what you use.
Warmup Starts With Verified Emails
Verify addresses first so warmup improves reputation, not burns it.