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6 Best WhoAPI Alternatives in 2026, Free Options Included

Explore 6 alternatives to WhoAPI, vetted by our editors with real user reviews, pricing, and feature comparisons.

A quick look at the 6 best free WhoAPI alternatives

Quick answer

The best WhoAPI alternatives to try first are Bandwidth, SwaggerHub and People Data Labs. Bandwidth earns the highest SpotScore (9.2) and a 4.66★ rating. Compare all 6 on score, rating, and pricing below.

Finding a strong WhoAPI alternative is mostly about knowing which tools deliver. These 6 api management software free alternatives do, ranked by SpotScore, which combines real-user satisfaction with market presence, plus star ratings and pricing. We vet each one. Skim the table, then read the breakdowns below.

ProductSpotScoreRatingPricingBest for
BandwidthStreamline API management for seamless integration.9.2★★★★★ 4.66(190)FreeFree Trial · Quotation Based · Subscriptionteams of all sizes
SwaggerHubStreamline, secure, and elevate your APIs.9★★★★★ 4.61(102)Freefrom $90/moteams of all sizes
People Data LabsUnleash the power of people data.8.3★★★★★ 4.66(16)FreeFree Trial · Quotation Basedteams of all sizes
ChecklyEfficiently manage your APIs with Checkly.7.9★★★★☆ 4(1)Freefrom $80/moteams of all sizes
iEngage.aiEmpowering API development with AI automation.7.8★★☆☆☆ 2(1)Freefrom $24/moteams of all sizes
CA API ManagementStreamline API processes with ease.—★★★★★ 4.5(1)FreeFree Trial · Subscriptionteams of all sizes

9.2

SpotScore

Bandwidth - API Management Software

Bandwidth

Streamline API management for seamless integration.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.7

190 verified reviews

Add to compare

What is Bandwidth?

Bandwidth is a cloud communications API platform used by enterprise software development and telecom teams to embed voice, messaging, and emergency 911 services directly into applications. Unlike aggregators, it operates its own carrier network, giving businesses more control over call quality, ...

Read more about Bandwidth
Free Trial·

Bandwidth offers custom pricing plan

9.0

SpotScore

SwaggerHub - API Management Software

SwaggerHub

Streamline, secure, and elevate your APIs.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.6

102 verified reviews

Add to compare

What is SwaggerHub?

SwaggerHub is API management software for companies whose mission is to create and manage great APIs. It is easy to use in that it saves the time of having to write code or configure servers, but it has the power to automate repetitive tasks, verify security and performance requirements, and ...

Read more about SwaggerHub
Free TrialTry Free →·

SwaggerHub offers custom pricing plan

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8.3

SpotScore

People Data Labs - API Management Software

People Data Labs

Unleash the power of people data.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.7

16 verified reviews

Add to compare

What is People Data Labs?

People Data Labs, Inc. has been connecting people and data via its People Data Platform since 2006 specializing in identity resolution, authorization, attribute management, and data science solutions. The easy-to-use People Data Labs API Management Software pushes out predefined changes to the ...

Read more about People Data Labs
Free TrialTry Free →·

People Data Labs offers custom pricing plan

7.9

SpotScore

Checkly - API Management Software

Checkly

Efficiently manage your APIs with Checkly.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.0

1 verified reviews

Add to compare

What is Checkly?

Checkly is an API and end-to-end monitoring tool used by engineering teams to run automated synthetic checks on API uptime, response times, and correctness in production environments. It runs scheduled tests from multiple geographic locations and alerts teams to failures and regressions before ...

Read more about Checkly
Free TrialTry Free →·

Checkly offers custom pricing plan

7.8

SpotScore

iEngage.ai - API Management Software

iEngage.ai

Empowering API development with AI automation.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

2.0

1 verified reviews

Add to compare

What is iEngage.ai?

iEngage.ai is the AI-based API Management Software for developers and  Enterprises. It helps to automate API development, deployment, monitoring, testing and security scanning. iEngage.ai helps companies speed up the time to market of new products and services by automating the key operations ...

Read more about iEngage.ai
Free Trial·

iEngage.ai offers custom pricing plan

CA API Management

CA API Management

Streamline API processes with ease.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.5

1 verified reviews

Add to compare

What is CA API Management?

CA API Management is a web application service that enables companies to build and manage APIs. This software uses Web services technologies, Cloud computing, and DevOps methodology to make development, deployment and management of secure enterprise-class APIs easy. The software provides API ...

Read more about CA API Management
Free TrialTry Free →

The main WhoAPI competitors

WhoAPI competes with 6 other api management software tools tracked on Spotsaas. The closest by feature overlap are Bandwidth, SwaggerHub and People Data Labs. Each is compared against WhoAPI on rating, pricing and feature coverage below.

Tools similar to WhoAPI

Searches for "sites like WhoAPI" and "apps like WhoAPI" land on the same set of options as "WhoAPI alternatives" — the 6 options below cover both, whether you want a like-for-like replacement or something lighter.

The case for each pick

Bandwidth9.2Best for teams of all sizes

Quick and responsive customer support, with a dedicated team actively assisting users.

Watch for: Portal could be more responsive and inability to open links or DIDs in other tabs.

SwaggerHub9Best for teams of all sizes

User-friendly interface

Watch for: Limited advanced features

People Data Labs8.3Best for teams of all sizes

Extensive and continually evolving data source, beneficial for sales teams and business owners.

Watch for: Some data quality issues, especially with outdated or missing information.

Checkly7.9Best for teams of all sizes

Cost-effective solution

Watch for: Limited advanced features

iEngage.ai7.8Best for teams of all sizes

AI-driven automation

Watch for: May require initial setup time

CA API ManagementBest for teams of all sizes

Easy API development and management

Watch for: Can be complex to set up

Why teams look for a WhoAPI alternative

Teams usually start looking for a WhoAPI alternative for a few concrete reasons:

  • Limited API management features
  • Not focused solely on APIs
  • May lack advanced analytics
  • Pricing could be high for small users

What to prioritize in a WhoAPI alternative

On price, ratings, and standout strengths, the 6 free alternatives compare like this: 6 offer a free tier; paid plans run $24–$90, with iEngage.ai the cheapest entry point; and Bandwidth is the highest rated at 4.66★ across 190 reviews.

Our scoring approach.

Frequently Asked Questions (FAQs)

Stuck on something? We're here to help with all the questions and answers in one place.

The top-rated alternatives to WhoAPI are Bandwidth (4.7★), People Data Labs (4.7★), SwaggerHub (4.6★). Compare all 6 alternatives side-by-side above.

When evaluating alternatives to WhoAPI, prioritize: Analytics, Testing Management, Access Control, transparent pricing, free trial availability, and integrations with your existing tools. Use the filters above to compare by feature, budget, and team size.

WhoAPI starts from $13 /Month. Many alternatives offer similar functionality at different price points — some with free tiers, others with more flexible per-seat pricing. Use the filters above to narrow by budget.

Migration difficulty depends on how deeply WhoAPI is integrated into your workflows. Most alternatives offer data export/import tools and dedicated onboarding support. We recommend narrowing to 2–3 options, running a free trial, and checking each vendor's migration guides before committing.

Which WhoAPI alternative makes sense for you?

  • On a budget / just exploring: start with a free tier — Bandwidth, SwaggerHub and People Data Labs let you evaluate without paying upfront.
  • If real-user ratings matter most: Bandwidth has the strongest star rating (4.66★) among the options with verified reviews.
  • Want the safest pick: Bandwidth has the highest Spotsaas Score (9.2) in this list — a strong default if you're unsure.

What switching from WhoAPI takes

Moving away from WhoAPI is lower-risk with a phased approach. Export your data, test that the new tool imports it, and verify your key workflows. Run a small pilot before the full switch, and don't drop WhoAPI until the migration's complete. Free trials above help you test first.

Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].