Comparison

Postman vs Keploy

Postman and Keploy both land on Depends.

Postman

Depends

Confidence: Medium

Dev teams that build, test, and share APIs daily should buy . it's the category leader with a genuinely useful free tier.

Read the full report

Keploy

Depends

Confidence: Medium

Buy if your dev team is API-heavy, wants tests auto-generated from real traffic, and will run the latest patched version.

Read the full report

Postman versus Keploy
Compare	Postman	Keploy
Verdict	Depends	Depends
Best for	Teams building and testing APIs together	API-heavy dev teams
Who it's not for	Non-technical users who never touch APIs	Orgs that can't patch agents promptly . known TLS-key CVE
Privacy	No known public vulnerabilities found in the sources reviewed.^⁵	One known 2026 CVE: agent API lacked authentication and exposed TLS keys in versions 3.1.0-3.6.25; patch before production use.
Support quality	No support evidence in sources	No customer support evidence found
Public sentiment	Users praise collaboration and API testing, but complain about resource heaviness and shrinking free-tier limits.^⁷	G2 users consistently praise Keploy and Reddit QA threads show active team adoption, while Glassdoor employee reviews are mixed.
Biggest gotcha	Free tier limits start March 1 . check caps before standardizing on it^⁸	CVE-2026-82641: agent control API lacked authentication, exposing TLS keys on 3.1.0-3.6.25. Upgrade before production use.

Pick Postman when

Teams building and testing APIs together
API-first product and engineering orgs
Teams sharing collections and docs across groups
Developers integrating third-party APIs

When Postman is not a fit

Non-technical users who never touch APIs
People who just need occasional one-off request testing
Teams wanting a lightweight, local-only client
Buyers avoiding cloud accounts for basic API calls

Pick Keploy when

API-heavy dev teams
Teams wanting tests from real traffic
CI/CD pipeline owners
Open-source-first shops

When Keploy is not a fit

Orgs that can't patch agents promptly . known TLS-key CVE
Buyers needing published pricing and mature enterprise support
No-code QA teams . look at ACCELQ instead
Tiny side projects . manual tests beat running an agent

Sources

Postman homepagepostman.com
official
Postman Plans & Pricingpostman.com
official
Postman product pagepostman.com
official
About Postmanpostman.com
official
Postman product security pagepostman.com
security
Postman ranked #1 in G2's Best API Platforms reportblog.postman.com
news
Is there any API testing tool better than postman? . r/webdevreddit.com
review
Postman's free plan limits start March 1 . r/learnprogrammingreddit.com
review
Postman API Platform Reviewsites.google.com
review
The 10 Best Tools for API Testing (Beyond Postman)openapi.com
review
Top 10 Postman API Alternatives to Try in 2026generect.com
review
Postman Alternative . Keploy blogkeploy.io
review
WhatsApp utilized Postman . LinkedInlinkedin.com
news
Postman Reviews . Gartner Peer Insightsgartner.com
review
Keploy homepagekeploy.io
official
Keploy Pricingkeploy.io
official