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CallerAPI Reviews & Product Details

CallerAPI is an enterprise spam call blocking and telecom fraud prevention API that helps carriers, CPaaS platforms, VoIP providers, and enterprises protect their networks, reduce fraud, and improve call trust — all through a single, scalable API With global coverage across 27 countries and more than 15,000 new spam numbers identified every day, CallerAPI delivers real-time intelligence that stops robocalls, spoofing, and scam attempts before they reach end users Known for its low-latency performance (average response ~0.5 seconds) and ability to handle millions of daily lookups, CallerAPI combines spam detection, carrier validation, and risk scoring into one unified solution. Its continuously updated fraud database refreshes every 5 minutes, ensuring businesses always operate with the most accurate and reliable data Trusted by telecom operators, VoIP providers, and fraud prevention teams worldwide, CallerAPI enables organizations to strengthen compliance, raise answer rates, and protect revenue streams. With flexible integration options, white-label support, and enterprise-grade scalability, it provides the foundation for a safer, more efficient global calling ecosystem CallerAPI is building the world’s leading spam call intelligence and blocking infrastructure — purpose-built for enterprises that demand reliability, speed, and accuracy at scale

Seller

CallerAPI

Discussions

CallerAPI Community

Languages Supported

English

Overview by

Dmitry B.

Pricing

Pricing provided by CallerAPI.

Basic

$25.00

Per Month

Premium

$99.00

Per Month

View More Pricing Information

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CallerAPI Integrations

(4)

Integration information sourced from real user reviews.

CallerAPI Media

Where does CallerAPI get all the data? We are 100% transparent!

The most important features of CallerAPI

A brief description of how the API works; You send a request with your API key and the target phone number, then on the backend, the data gets pulled and compiled. Finally, it gets delivered to you in a beautiful manner!

Best phone data enrichment API benefits

Lead enhancement, CRMs, dialers and HR software benefit the most from CallerAPI

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Kartik G.

React.js Developer

Information Technology and Services

Small-Business (50 or fewer emp.)

3/10/2025

"Great Experience with Caller API"

4.5/5

What do you like best about CallerAPI?

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. Review collected by and hosted on G2.com.

What do you dislike about CallerAPI?

Sometimes, when we check very uncommon or new phone numbers, CallerAPI doesn’t have much info on them Review collected by and hosted on G2.com.

Akshay V.

Senior Software Developer

Information Technology and Services

Enterprise (> 1000 emp.)

3/15/2025

"Caller API Makes Phone Verification Super Simple"

4/5

What do you like best about CallerAPI?

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 Review collected by and hosted on G2.com.

What do you dislike about CallerAPI?

Sometimes, the response time can be a bit slow during peak hours. Also, I wish they had more detailed error messages to debug issues faster. Review collected by and hosted on G2.com.

Prashant B.

Consultant

Information Technology and Services

Enterprise (> 1000 emp.)

3/5/2025

"Reliable and Easy-to-Use Caller Management Tool"

4.5/5

What do you like best about CallerAPI?

CallerAPI helps our team manage calls smoothly. The interface is simple, and we can easily track call logs, record conversations, and analyze data. It saves a lot of time and improves our workflow. Review collected by and hosted on G2.com.

What do you dislike about CallerAPI?

Sometimes, the call analytics take longer to load, especially during peak hours. Also, I wish there were more customization options for reports. Review collected by and hosted on G2.com.

Sushant S.

Associate Business Analyst

Enterprise (> 1000 emp.)

3/7/2025

"Easy and Reliable Caller API for Business Needs"

4.5/5

What do you like best about CallerAPI?

CallerAPI is very simple to use. It gives quick and clear call details, helping me track all important calls without any trouble. The setup is easy, and the reports are useful. Review collected by and hosted on G2.com.

What do you dislike about CallerAPI?

Sometimes, the call logs take a little longer to update. Also, I wish there were more customization options in the reports. Review collected by and hosted on G2.com.

insha b.

Proposal Specialist

Small-Business (50 or fewer emp.)

12/18/2024

""Revolutionizing Caller Identification with Speed and Accuracy""

3.5/5

What do you like best about CallerAPI?

It's real-time caller identification with global coverage of 2.65 billion phone numbers. The fast response time of just 0.5 seconds and its ability to detect spam and fraud calls at scale make it incredibly efficient. Plus, the affordability (10x cheaper than competitors) and seamless integration options with CRMs and no-code tools are big highlights. Review collected by and hosted on G2.com.

What do you dislike about CallerAPI?

What I dislike about CallerAPI is that it’s unclear how easy it is to set up with all tools, especially less common ones Review collected by and hosted on G2.com.

What problems is CallerAPI solving and how is that benefiting you?

CallerAPI solves the problem of identifying unknown callers and blocking spam or fraud calls. This is a big help for corporate work because it ensures you only connect with real clients and avoid wasting time on spam. It also improves communication by giving trusted information about callers, which makes follow-ups and writing to clients much easier. Review collected by and hosted on G2.com.

Abhijeet R.

Full Stack Developer

Information Technology and Services

Small-Business (50 or fewer emp.)

2/27/2025

"A Must-Have Tool for Developers Building Call Features"

4.5/5

What do you like best about CallerAPI?

The seamless integration with both frontend and backend systems saves me hours of coding, and the documentation is crystal clear. Review collected by and hosted on G2.com.

What do you dislike about CallerAPI?

Advanced features like custom call routing require extra setup, which can feel time-consuming for complex projects. Review collected by and hosted on G2.com.

Rahul D.

DevOps Engineer

Information Technology and Services

Mid-Market (51-1000 emp.)

3/10/2025

"Reliable API for Managing Calls Efficiently"

4/5

What do you like best about CallerAPI?

CallerAPI makes it easy to automate call handling, logs everything properly, and integrates well with our DevOps workflows. Review collected by and hosted on G2.com.

What do you dislike about CallerAPI?

Sometimes, API response time fluctuates during high traffic, but overall, it’s stable. Review collected by and hosted on G2.com.

Vaishali V.

SEO SMO Executive

Information Technology and Services

Mid-Market (51-1000 emp.)

3/8/2025

"Simple Call Tracking & Great Analytics"

4.5/5

What do you like best about CallerAPI?

It helps me track calls in real-time and gives clear reports. Review collected by and hosted on G2.com.

What do you dislike about CallerAPI?

Sometimes, call logs take a few seconds to update. Review collected by and hosted on G2.com.

Sajith M.

Software Developer

Computer Software

Small-Business (50 or fewer emp.)

12/20/2024

"Streamlined API Solution for Everyday Needs"

4.5/5

What do you like best about CallerAPI?

CallerAPI is extremely user-friendly, with clear documentation and seamless integration capabilities. The response times are fast, and the dashboard makes tracking API usage intuitive. Review collected by and hosted on G2.com.

What do you dislike about CallerAPI?

There are occasional issues with customer support response times, and the pricing structure could be more transparent, especially for smaller businesses. Review collected by and hosted on G2.com.