Buyer's guide

Best API Testing Platforms software for Startup (1-50)

10 api testing platforms tools that fit Startup (1-50), ranked. Compare fit and pricing, or start from the full api testing platforms guide.

10 matching toolsStartup (1-50)

1
Nected
Business Rules Engines
Nected is a low-code decision intelligence platform that unifies rule engines and workflow automation for backend process management and experimentation.
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2
StatusCake
Website Uptime Monitoring
StatusCake provides uptime monitoring, page speed testing, SSL monitoring, and hosted status pages for websites and APIs.
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3
Postman
API Testing Platforms
Postman is an API platform for designing, testing, documenting, and monitoring APIs with collaboration features for developer teams.
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4
CircleCI
CI/CD
CircleCI is a continuous integration and delivery platform that automates build, test, and deployment pipelines. It supports cloud and self-hosted environments with powerful parallelism and…
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5
Mailjet
Email Deliverability
Mailjet by Sinch is an email delivery and marketing platform with collaborative editing, API sending, and real-time analytics for teams.
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6
Checkly
Monitoring & Observability
Checkly is a monitoring-as-code platform for API monitoring and end-to-end testing that integrates with CI/CD pipelines to detect issues before they affect users.
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7
APIContext
API Testing Platforms
API monitoring and performance platform delivering global testing, compliance evidence, and availability SLAs for critical APIs.
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8
Swagger
API Testing Platforms
Swagger by SmartBear provides API design, documentation, testing, and governance tools built around the OpenAPI specification standard for API-first development.
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9
Mailgun
Email Deliverability
Mailgun by Sinch is a transactional email API service for developers, providing email sending, receiving, validation, and deliverability optimization.
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10
Prismic
Headless CMS
Prismic is a headless page builder and CMS that enables marketers to build pages independently while developers maintain code quality.
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11
Karate Labs
Test Automation Frameworks
Open source API testing framework combining test automation with API mocks and performance.
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12
Bruno
API Developer Tools
Open source API client that stores collections directly in your filesystem using a plain text markup language.
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13
Requestly
API Testing Platforms
Browser extension and desktop app for intercepting, modifying, and mocking HTTP requests for debugging and testing.
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What is the best api testing platforms software for Startup (1-50)?

The list above ranks 10 api testing platforms tools that fit Startup (1-50), ordered so the most complete, vendor-maintained profiles surface first. Open any profile for pricing and fit detail.