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Head-to-head · API Security Testing Software

Schemathesis vs Pentestas API Scanner

  • Updated Sep 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Schemathesis #7 in API Security Testing Software 7.1/10 Free plan Free plan✓ 0 of 5 features Visit Schemathesis
Pentestas API Scanner #8 in API Security Testing Software 6.8/10 Free plan · paid from $99/mo · 14-day trial Free plan✓ 4 of 5 features Visit Pentestas

Schemathesis leads on 0 checks, Pentestas API Scanner on 4, and 1 is even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSchemathesis · 7.1/10
  • Free planboth
  • Most featuresPentestas API Scanner · 4 of 5

Schemathesis scores higher on our rubric for api security testing software: 7.1 against 6.8 out of 10; our editors rank them #7 and #8.

Pentestas API Scanner offers api discovery; Schemathesis doesn't publish it. Pentestas API Scanner offers authentication testing; Schemathesis doesn't publish it. Pentestas API Scanner offers authorization testing; Schemathesis doesn't publish it. Pentestas API Scanner offers input-validation testing; Schemathesis doesn't publish it.

Schemathesis is the better fit for open-source schema and workflow testing. Pentestas API Scanner is the better fit for multi-protocol API testing.

  • Schemathesis fits best

    Open-source schema and workflow testing

  • Pentestas API Scanner fits best

    Multi-protocol API testing

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Side by side

Feature Schemathesis 7.1/10 Visit ↗ Pentestas API Scanner 6.8/10 Visit ↗
At a glance
Editor score 7.1 6.8
Ranking #7 in API Security Testing Software #8 in API Security Testing Software
Best for Open-source schema and workflow testing Multi-protocol API testing
Pricing model Free Free plan + paid
Starting price Not published $99/mo
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Cloud, Self-hosted
Platforms Windows, macOS, Linux Web
Support Email, Community, Docs Email, Live chat, Phone, Community
Integrations 5 integrations 5 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Schemathesis 0/5 · Pentestas API Scanner 4/5
API discovery Not published ✓ (best)
Authentication testing Not published ✓ (best)
Authorization testing Not published ✓ (best)
Input-validation testing Not published ✓ (best)
Business-logic testing Not published Not published
Specs
Deployment Not published Hybrid
API formats Not published REST, SOAP, OpenAPI, Swagger, Postman, GraphQL, gRPC
Our review
Pros
  • Generates property-based tests from OpenAPI and GraphQL schemas
  • Supports stateful workflows, authentication, replay, and coverage reporting
  • Integrates with GitHub Actions, GitLab CI, pytest, Docker, and Allure
  • Tests REST, SOAP, GraphQL, gRPC, OpenAPI, Swagger, and Postman APIs
  • Covers authentication, authorization, BOLA/BFLA, JWT, and injection testing
  • Exports PDF, CSV, and JSON reports with CI/CD and team integrations
Cons
  • Self-hosted deployment places setup and operations with the team
  • Focuses more narrowly on schema-driven failures than vulnerability testing
  • Requires an OpenAPI or GraphQL schema for its core test generation
  • Free API Scanner access is limited to two runs per tool per IP per day
  • Starter focuses on automated web scanning rather than full API scanning
  • On-premise deployment and custom integrations are reserved for Enterprise
Our verdict

Schemathesis is an open-source API testing tool for developers and quality teams working with OpenAPI and GraphQL APIs. It generates property-based test cases from schemas, sends them to an API, and checks responses for server errors,…

Read the review →

Pentestas API Scanner evaluates live APIs and uploaded API specifications for security weaknesses. It is designed for teams testing REST, SOAP, OpenAPI, Swagger, Postman, GraphQL, and gRPC interfaces, with browser-based workflows for API…

Read the review →
  1. SchemathesisAPI Security Testing Software 7.1Free plan
  2. Pentestas API ScannerAPI Security Testing Software 6.8Free plan · paid from $99/mo · 14-day trial

Strengths and trade-offs

  • Schemathesis — where it wins

    • Generates property-based tests from OpenAPI and GraphQL schemas
    • Supports stateful workflows, authentication, replay, and coverage reporting
    • Integrates with GitHub Actions, GitLab CI, pytest, Docker, and Allure

    Where it doesn't

    • Self-hosted deployment places setup and operations with the team
    • Focuses more narrowly on schema-driven failures than vulnerability testing
    • Requires an OpenAPI or GraphQL schema for its core test generation

  • Pentestas API Scanner — where it wins

    • Tests REST, SOAP, GraphQL, gRPC, OpenAPI, Swagger, and Postman APIs
    • Covers authentication, authorization, BOLA/BFLA, JWT, and injection testing
    • Exports PDF, CSV, and JSON reports with CI/CD and team integrations

    Where it doesn't

    • Free API Scanner access is limited to two runs per tool per IP per day
    • Starter focuses on automated web scanning rather than full API scanning
    • On-premise deployment and custom integrations are reserved for Enterprise
  • Schemathesis7.1/10 · Free plan

    Schema-driven API testing with workflows, adaptive checks, and CI reporting.

    Visit SchemathesisFull verdict →
  • Pentestas API Scanner6.8/10 · Free plan · paid from $99/mo · 14-day trial

    A multi-protocol API scanner with useful free access and broad security checks.

    Visit PentestasFull verdict →

More comparisons

All API security testing software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update