250 free verifications / mo · no card

Verify every email
before you send.

Real-time email verification with 99%+ accuracy. Reduce bounces, protect your sender reputation, and ensure every message reaches a real inbox.

Start Free → View API Docs

{ "email": "support@bouncehalt.com", "is_reachable": "safe", "is_deliverable": true, "is_disposable": false, "is_catch_all": false, "mx_found": true, "syntax_valid": true }

99%+ Verification Accuracy

<500ms Avg. Response Time

250 Free verifications / mo

No card required to start

Capabilities

Everything you need to
validate email addresses.

A complete verification pipeline that checks syntax, DNS, mailbox existence, and more — all in a single API call.

Real-Time Verification

Verify emails instantly via our REST API. Average response time under 500ms with full SMTP-level checks.

Bulk Verification

Upload CSV files with thousands of emails. Process them in the background and download clean results.

Simple REST API

Clean JSON API with comprehensive documentation. Integrate in minutes with any language or platform.

99%+ Accuracy

Multi-layer verification: syntax, MX records, SMTP handshake, catch-all detection, and disposable email checks.

Process

Three steps to clean data.

From raw email input to verified, deliverable results.

Submit Email

Send an email address via our API or paste a list into the dashboard. Single or bulk — your choice.

Deep Verification

We check syntax, DNS records, connect to the mail server, and verify the mailbox exists — without sending any email.

Get Results

Receive a detailed response: deliverable, risky, invalid, or unknown — with full diagnostic data for each check.

Developer-First

Built for developers.

A clean REST API that returns everything you need. Integrate email verification into your signup flow, CRM, or marketing platform in minutes.

RESTful JSON API

Simple POST request, comprehensive JSON response. Works with any language.
Detailed Diagnostics

Every response includes syntax, MX, SMTP, and disposable checks with full debug info.
Sub-Second Response

Most verifications complete in under 500ms. Set custom timeouts for edge cases.
Secure by Default

API key authentication, HTTPS only, rate limiting, and no email data stored.

            REQUEST
            cURL
          
curl -X POST https://api.bouncehalt.com/v1/check-email \
  -H "Content-Type: application/json" \
  -H "x-api-key: your_api_key" \
  -d '{"to_email": "user@example.com"}'

            200 OK
            Response
          
{
  "input": "user@example.com",
  "is_reachable": "safe",
  "syntax": {
    "is_valid_syntax": true,
    "domain": "example.com"
  },
  "mx": {
    "accepts_mail": true,
    "records": ["mx.example.com"]
  },
  "smtp": {
    "is_deliverable": true,
    "is_catch_all": false,
    "has_full_inbox": false
  },
  "misc": {
    "is_disposable": false,
    "is_role_account": false
  }
}

Pricing

Simple, transparent pricing.

Pay only for what you use. No hidden fees, no commitments.

Starter

$19/mo

5,000 verifications included

Single email API
99%+ accuracy
JSON responses
Email support
Top-up credits available

Start Free

Stop sending emails
into the void.

Start verifying emails in minutes. No credit card required for your first 250 verifications.

Start Free → Read the Docs

Verify every emailbefore you send.

Everything you need tovalidate email addresses.