G2 Vendor Directory

CallerAPI

by CallerAPI

24

Reviews

4.3

Star rating

#15

Rank in Phone Verification

Pros and cons

Pros

  • Ease of Use
  • API Integration
  • Real-Time Data
  • Easy Integrations
  • User Interface
  • Performance

Cons

  • Slow Performance
  • Expensive
  • Poor Customer Support
  • Pricing Issues
  • Billing Issues
  • Limited Customization

Traffic & LLM citations

Monthly G2.com page views and citations by AI answer engines for CallerAPI.

Page views and citations · CallerAPI

Source: G2 review data

Winning from

Based on reviewers who said they switched from another product.

Key stats

—

58

Small Business

1

Adoption by company size

SegmentShare of reviews
Small Business45.8%
Mid-Market25.0%
Enterprise29.2%

Quarterly history

QuarterReviewsStar rating
2024 Q4104.4
2025 Q194.3
2025 Q215.0

Satisfaction ratings

Ease of Use8.9
Ease of Setup9.0
Quality of Support8.4
Meets Requirements8.8

What reviewers say

Best tool to identify call

5.0

“CallerAPI helps us to identify calls and helps us reduce spam calls.”

System Admin

Caller API Makes Phone Verification Super Simple

4.0

“I love how easy it is to verify phone numbers. The API is fast, accurate, and doesn’t need a complex setup. Just a few lines of code, and it works perfectly”

Senior Software Developer

Great Experience with Caller API

4.5

“CallerAPI fit into our existing setup easily. As a React developer, I often worry about compatibility with other tools, but CallerAPI works well with both our front-end (React) and our backend server.”

React.js Developer