§ 01 / INTEGRATIONS

Connect with a REST API.

BounceCheck is API-first. Verify emails from any backend, form, or workflow with a simple HTTP call. Connect to thousands of tools through Zapier — no native integration required.

View API Docs Get API key

§ 02 / API CAPABILITIES

One endpoint. Endless possibilities.

Simple JSON over HTTPS

Standard REST. POST an email, get a verification result. Works with any language.

Webhooks

Subscribe to verification events. Auto-retry with exponential backoff.

Bearer auth

API key authentication with scoped permissions. Rotate keys anytime.

Works anywhere

cURL, Python, Node.js, Ruby, Go, PHP, or any HTTP client.

§ 03 / CODE

Verify in three lines.

No SDK required. Just an API key and any HTTP client. Read the docs for full request and response specs, error codes, and webhook payloads.

Full API reference

curl

curl https://api.bouncecheck.email/v1/verify
  -H "Authorization: Bearer sk_live_..."
  -H "Content-Type: application/json"
  -d '{"email": "[email protected]"}'

# Response
{
  "email": "[email protected]",
  "is_valid": true,
  "score": 98
}

§ 04 / USE CASES

Common patterns.

Validate at signup

Drop verification into your registration form to block disposable and invalid addresses before they hit your database.

01User submits form

02Your backend calls API

03Reject if Invalid

Clean lists before send

Run your email list through the API in bulk before exporting to your ESP. Lower bounce rates instantly.

01Export from ESP

02Verify via API

03Re-import clean list

Form integrations via Zapier

Connect Typeform, HubSpot Forms, or any form tool through Zapier. Verify every submission automatically.

01Form submit (Zapier trigger)

02BounceCheck verify (Zap action)

03Route to CRM

§ 05 / ZAPIER

Connect via Zapier.

Use Zapier's webhook action to call BounceCheck from any of the thousands of apps Zapier supports — no code required. Perfect for connecting form tools, CRMs, and email platforms to verification.

Typeform signup → Verify → Google Sheet

Shopify order → Verify email → Klaviyo

HubSpot form → Verify → Slack alert

Stripe customer → Verify → Salesforce

§ GET STARTED

Build your first integration in minutes.

View API Docs

curl https://api.bouncecheck.email/v1/verify -H "Authorization: Bearer sk_live_..." -H "Content-Type: application/json" -d '{"email": "[email protected]"}' # Response { "email": "[email protected]", "is_valid": true, "score": 98 }