Block spam calls with our Caller ID API

Protect your brand, customer trust, stop spam, fraud and robocalls with our enterprise spam call blocking API

Trusted by reputable Companies

Enterprise Caller ID

Phone number spam detection

Make your business stand out by using our phone number spam detection API, covering 27 countries. Our API helps businesses:

  • Increase customer answer rates by up to 65% with phone intelligence
  • Reduce fraud losses by identifying and blocking scam calls
  • Improve customer experience with verified business identity
  • Protect brand reputation from number spoofing attacks

96% Coverage

Across 27 countries

100% White Label

Resell and make profits

Detect spam calls and robocalls fast

Stop wasting time on calls that immediately drop or spam phone ads, which waste your customers' time. Focus on serving your customers instead of fighting with spam. Integrate CallerAPI, just use our templates

API integration

Flexible and scalable

No-code automation

Zapier, pipedream...

Carrier networks

Call screening

And more...

3 more integrations

Enrich caller id data with CallerAPI
Phone fraud prevention API

Telecom fraud prevention at scale

It's tiring to see non-existent or temporary phone numbers on your service, I know. We got you covered, you can integrate CallerAPI, block the fraudulent actors and never miss a real customer.

  • CallerAPI can handle millions of requests per day
  • 10x cheaper than the competition, whilst 3x richer in information
  • ~15k spam callers reported daily, updated every 5 minutes
  • Average request to response time is 0.5 seconds
  • Coverage of 27 countries

Best price on the market

Basic

$25/mo

  • 5,000 API calls/month
  • 99% uptime
  • Pre-built code
  • No-code integrations
Get started
Most Popular

Premium

$99/mo

  • 20,000 API calls/month
  • Everything in Basic
  • Priority support
  • Access to Beta testing
Get started

Enterprise

$997/pay-per-use

  • 250,000+ API calls
  • Everything in Premium
  • Scalable pricing
  • KYC API
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What our customers say

"Glad to be working with the CallerAPI team! Excited to be making this a reality on a global scale!"

CallerAPI customer

Gideon Ebose

Co-Founder, Rulebase (YC F24)

"Choosing CallerAPI was a big upgrade to our phone fraud prevention system. We've seen a 40% increase in accuracy"

CallerAPI customer

Victor Saldarriaga

CTO, Vertical Technologies

Caller ID API questions

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