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Abstract API

Utilities

Email validation, phone validation, IP geolocation, and more

Abstract API bundles dozens of small utility APIs — email verification, phone validation, IP lookup, VAT validation, holidays, and more — into a single platform.

Details

Auth Type

API Key (api_key param)

Rate Limit

100 req/month (free per API)

Pricing

Free 100 req/month; from $9/month

Full Docs

API Key (api_key param)

1. Go to https://app.abstractapi.com/ 2. Sign up and pick an API 3. Copy your API key from the dashboard 4. Paste it in the API Key field

Get API Credentials

Getting Started

Try It Instantly

Click "Try It" above to test the API in the playground

Add to Your Agent

Click "Add to Agent" to get your API key and integrate

Common Use Cases

Email validation

Phone number verification

IP geolocation

VAT number lookup

Public holidays

💻 Code Examples

Get started quickly with these code examples in your favorite language

curl -X GET \
  'https://www.callio.dev/api/proxy/abstract-api/forward?target=https%3A%2F%2Femailvalidation.abstractapi.com%2Fendpoint' \
  -H 'Authorization: Bearer YOUR_CALLIO_KEY' \
  -H 'Content-Type: application/json'

💡 Tip: Replace YOUR_CALLIO_KEY with your actual Callio API key from the dashboard.

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