--- title: CallerAPI Reviews meta\_title: 'CallerAPI Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 24 reviews by the users' company size, role or industry to find out how CallerAPI works for a business like yours. aggregate\_rating: rating\_value: 4.3 review\_count: 24 scale: '5' date\_modified: '2026-08-07' parent\_category: name: Office Management Software url: https://www.g2.com/categories/office-management-software --- # CallerAPI Reviews & Product Details Claimed ###### Profile Status This profile is currently managed by CallerAPI but has limited features. Are you part of the CallerAPI team? [Upgrade your plan](https://my.g2.com/callerapi/upgrade?utm_campaign=s3&utm_medium=claim-popup&utm_source=g2) to enhance your branding and engage with visitors to your profile! CallerAPI is a Caller ID, robocall prevention and telecom spam protection platform that gives carriers, MVNOs, CPaaS and UCaaS providers, Voice AI platforms, SIP/VoIP operators, and mobile security vendors real-time phone intelligence to stop spam, reduce fraud, and increase revenue. Through a single scalable API, a self-hosted spam feed, white-label SDKs, and a SIP firewall, CallerAPI delivers: - Spam score, reputation, and complaint history - Business identity (name, location, industry) across 195 countries - Carrier data, number type, and optional HLR lookup - Live fraud and spam detection covering 30+ countries The spam database updates every 60 seconds with 15 days of rolling history, enabling zero-latency blocking at the switch or network edge. Average API response times are under 300 ms, and the infrastructure is built to handle hundreds of millions of lookups per day. Most customers use CallerAPI in two ways: to cut the cost of answering or processing spam calls, and to resell spam protection and caller intelligence as a branded value-added service that increases ARPU and reduces churn. White-label SDKs (Swift, Java/Kotlin, Flutter, React Native) and an Asterisk module let platforms keep their own brand in front of end users. Self-serve plans start at $25/month, with volume tiers scaling to tens of millions of monthly lookups. The Spam Database Feed, SDKs, and turnkey integrations are licensed directly to match each deployment. CallerAPI is a founder-led company based in Switzerland, with the main operating entity located in the US, focused on practical, high-accuracy telecom protection that sits quietly in the call path and helps operators, platforms, and apps keep networks clean and customers protected. * * * Seller [CallerAPI](https://www.g2.com/sellers/callerapi) Discussions [CallerAPI Community](https://www.g2.com/products/callerapi/discuss) Languages Supported English Overview by Dmitry B. Show More ## Pricing Pricing provided by CallerAPI. ### Basic $25.00 Per Month ### Premium $99.00 Per Month [ View More Pricing Information ](https://www.g2.com/products/callerapi/pricing) ## Top-Rated Alternatives [ ![Plivo](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Plivo") Plivo 4.5/5(747) ](https://www.g2.com/products/plivo/reviews) [ ![Vonage Communications APIs](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Vonage Communications APIs") Vonage Communications APIs 4.2/5(404) ](https://www.g2.com/products/vonage-communications-apis/reviews) [ ![Validity Engage](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Validity Engage") Validity Engage 4.5/5(989) ](https://www.g2.com/products/validity-engage/reviews) [ View All Alternatives ](https://www.g2.com/products/callerapi/competitors/alternatives) ## User Insights Average based on 24 real user reviews. Typical contract price $0k - $0k [Sign in to view](/login) Per Month [Log in to unlock pricing and user insights](/login) ![Kartik G.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Kartik G.") KG 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. What problems is CallerAPI solving and how is that benefiting you? when a new user signed up on our site, we wanted to check if the phone number they provided was real and to know if it might be associated with spam. CallerAPI solved this problem for us. By integrating CallerAPI, we can now instantly get information about any phone number. Review collected by and hosted on G2.com. Show More 3/13/2025 Current UserValidated ReviewerIncentivizedSource: G2 invite ![Prashant B.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Prashant B.") PB 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. What problems is CallerAPI solving and how is that benefiting you? CallerAPI has streamlined our call tracking process, saving us a lot of manual work. We can now automatically log, monitor, and analyze calls, which improves customer interactions and support efficiency. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Sushant S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Sushant S.") SS 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. What problems is CallerAPI solving and how is that benefiting you? It helps me keep a record of all business calls, so I never miss any important details. It also helps my team analyze call patterns and improve customer interactions. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Abhijeet R.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Abhijeet R.") AR 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. What problems is CallerAPI solving and how is that benefiting you? It handles caller authentication and spam detection automatically, letting me focus on core app features. Review collected by and hosted on G2.com. Show More 3/4/2025 Current UserValidated ReviewerIncentivizedSource: G2 invite ![Vaishali V.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Vaishali V.") VV 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. What problems is CallerAPI solving and how is that benefiting you? I struggled to track call leads from ads. CallerAPI made it easy by showing call sources and details instantly. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Sajith M.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Sajith M.") SM 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. What problems is CallerAPI solving and how is that benefiting you? CallerAPI has simplified API management by offering robust features like real-time monitoring and detailed logs. It helps reduce development time by providing prebuilt integrations and ensures scalability as our business grows. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Manoj M.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Manoj M.") MM Manoj M. Full Stack Developer Small-Business (50 or fewer emp.) 2/27/2025 "Efficient and Reliable API for Call Management" 5/5 What do you like best about CallerAPI? It is very easy to integrate, and it's best for call tracking and management, and it simple to work with. Review collected by and hosted on G2.com. What do you dislike about CallerAPI? some times facing delays in data updates. Review collected by and hosted on G2.com. What problems is CallerAPI solving and how is that benefiting you? Its very easy method to verify number, reducing fraud and improving security. Review collected by and hosted on G2.com. Show More 3/3/2025 Current UserValidated ReviewerIncentivizedSource: G2 invite SS SHAIK S. System Admin Enterprise (\> 1000 emp.) 4/28/2025 "Best tool to identify call" 5/5 What do you like best about CallerAPI? CallerAPI helps us to identify calls and helps us reduce spam calls. Review collected by and hosted on G2.com. What do you dislike about CallerAPI? CallerAPI is very expensive for everyone to afford. Review collected by and hosted on G2.com. What problems is CallerAPI solving and how is that benefiting you? CallerAPI helps in detecting spam phone calls. It reduce the phone calls from spam. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Organic ![Panchal H.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Panchal H.") PH Panchal H. Wordpress Developer Mid-Market (51-1000 emp.) 12/23/2024 "Efficient Caller Identification tool to identify phone numbers" 5/5 What do you like best about CallerAPI? Caller API makes it easier to identify phone numbers and validates services that provide trustworthy caller ID API. Furthermore, it gives users and developers real-time identification so they may provide accurate and legitimate phone number information to their applications. It has a global reach and can recognize callers from various sources. It also makes it easier to identify spam callers. Review collected by and hosted on G2.com. What do you dislike about CallerAPI? While everything comes at some price, small business budgets could find it too expensive. Review collected by and hosted on G2.com. What problems is CallerAPI solving and how is that benefiting you? Spam calls which are the biggest headach now a days. CallAPI solves this by filtering the spam calls. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Keerthanaa N.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Keerthanaa N.") KN Keerthanaa N. Web Developer Small-Business (50 or fewer emp.) 12/11/2024 "Best tool to Identify and Block Fraud Calls" 4.5/5 What do you like best about CallerAPI? Easy to identify spam & fraud calls with real time tracking. Review collected by and hosted on G2.com. What do you dislike about CallerAPI? The pricing may be bit high for small business budgets Review collected by and hosted on G2.com. What problems is CallerAPI solving and how is that benefiting you? Provides accurate caller ID tracking and fraud detection for identifying spam Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ## Pricing Options Pricing provided by CallerAPI. ### Basic $25.00 Per Month ### Premium $99.00 Per Month ### Enterprise $997.00 250000 Lookups With One-Time Purchase [ View More Pricing Information ](https://www.g2.com/products/callerapi/pricing) ##### ##### CallerAPI Features Platform Basics - Phone Verification Accuracy Call Screening Scalability Additional Features - Phone Verification Integration Abilities Compliance with Regulations Reporting and Analytics [ View More Features ](https://www.g2.com/products/callerapi/features) ##### Categories on G2 [Phone Verification](https://www.g2.com/categories/phone-verification) ##### Explore More [What PLM platforms integrate well with CAD tools like CATIA and NX so engineers do not have to manually push design data into a separate system?](https://www.g2.com/discussions/what-plm-platforms-integrate-well-with-cad-tools-like-catia-and-nx-so-engineers-do-not-have-to-manually-push-design-data-into-a-separate-system%20)[Which financial consulting firms specialize in industry-specific cost reduction and financial performance improvement?](https://www.g2.com/discussions/which-financial-consulting-firms-specialize-in-industry-specific-cost-reduction-and-financial-performance-improvement)[Recommended data science software for e-commerce](https://www.g2.com/discussions/what-s-the-recommended-data-science-software-for-e-commerce) [What platform supports multi-country location analysis?](https://www.g2.com/discussions/what-platform-supports-multi-country-location-analysis)[What are the most trusted field sales software by sales managers at retail based on user reviews?](https://www.g2.com/discussions/what-are-the-most-trusted-field-sales-software-by-sales-managers-at-retail-based-on-user-reviews)[Pros and Cons Details](https://www.g2.com/products/callerapi/reviews?qs=pros-and-cons) [Show MoreShow Less](javascript:void(0);)