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Explore Cleariflow's library of APIs

Production-ready endpoints for validation, lookup, and generation.

Email Validation

Popular
Validation

Validate email addresses with syntax, domain, and SMTP verification. Reduce bounces, improve deliverability, and protect your platform from spam.

Exchange Rates

Lookup & data

Get real-time and historical exchange rates for 80+ currencies with bank-grade accuracy. Perfect for financial applications, e-commerce, and currency conversion services.

IP Geolocation

Lookup & data

Get comprehensive location data for any IP address worldwide. Perfect for analytics, fraud prevention, content localization, and security applications.

User Avatars

Generation

Generate customizable user avatars with flexible styling options. Perfect for user profiles, chat applications, and identity systems with PNG or SVG formats.

Phone Validation

Validation

Structurally validate and normalize phone numbers to E.164 with libphonenumber. Get line type and optional carrier/location metadata where available. Ideal for registration forms and contact cleanup — not live line verification.

VAT Validation & Rates

Validation

Validate VAT numbers through official VIES API and calculate tax rates for EU countries. Perfect for e-commerce, invoicing systems, and tax compliance.

Bank Validation

Validation

Validate international bank accounts (IBAN) and BIC codes with comprehensive format checking. Perfect for payment systems, financial applications, and bank account verification.

Built for developers by developers

Everything you need to ship reliable API integrations at scale

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A global architecture that ensures fast, reliable, and redundant service with industry-standard data sovereignty and privacy.

Built for scale

Whether you have 10 or 10,000 requests per second, we're ready for you.

Built for blazing speed

Milliseconds matter. We obsess about every single one of them in a response.

Built for reliable uptime

Every minute of uptime counts. That's why teams in production trust us worldwide.

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Customer-obsessed technical support

Everything you need to get live and stay that way. Fast, responsive, and friendly support from developers. 24/7 via email and chat.

Integrate with your stack

Cleariflow integrates with the tools you already use, from cloud platforms to CRMs, ERPs, and low-code tools.

World-class docs and SDKs

We obsess over time to first production request. Code samples, libraries, and SDKs to get you started quickly.

Ready for the enterprise

Compliance is at our core. We're committed to industry-standard security and privacy frameworks.

Integrate with your stack

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Shopify
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Pricing

Pay only for what you use

Monthly request limits match each product page; dollar amounts match plan labels across the site.

Email Validation

Validate email addresses with syntax, domain, and SMTP verification.Reduce bounces, improve deliverability, and protect your platform from spam.

Free
Monthly
$0
100 API calls / month included
REST API access
Up to 1 requests/sec
JSON responses
Get started
Starter
Monthly
$6
5,000 API calls / month included
Everything in Free
Up to 3 requests/sec
Billed as shown in your account
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Basic
Monthly
$12
15,000 API calls / month included
Everything in Free
Up to 5 requests/sec
Billed as shown in your account
Choose plan
Popular
Standard
Monthly
$23
30,000 API calls / month included
Everything in Free
Up to 10 requests/sec
Billed as shown in your account
Choose plan
Business
Monthly
$33
50,000 API calls / month included
Everything in Free
Up to 25 requests/sec
Billed as shown in your account
Choose plan
Professional
Monthly
$66
150,000 API calls / month included
Everything in Free
Up to 50 requests/sec
Billed as shown in your account
Choose plan

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