CategoriesAPI Testing

Companies in the category 'API Testing'

These are companies that provide open source tools for testing the functionality, performance, and security of APIs.

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Insomnia

Open-source API client & testing platform

Insomnia is an open-source, cross-platform API client for designing, debugging, and testing REST, GraphQL, gRPC, WebSocket, and SSE endpoints. Originally developed by Gregory Schier as an independent project, it was acquired by Kong Inc. in 2019 and is now maintained as part of Kong's API platform. Insomnia supports local, Git-based, and cloud storage workflows, enabling teams to collaborate on API development and automate testing through CI/CD pipelines.

Location: Victoria, BC, Canada
Founded: 2015
Industries
Software
Technologies
Developer ToolsAPI Design
Sectors
Enterprise
Licenses
Apache-2.0
Updated: May 15, 2026
2 people
15 headlines
HTTPie

Human-friendly API testing tools

HTTPie is a developer-focused company building tools that make APIs simple and intuitive. Its flagship open-source CLI client for HTTP requests has become one of the most popular developer tools on GitHub, and the company now offers a full-featured web and desktop API testing platform as well as an AI-powered interface for API interaction.

Location: San Francisco, CA, USA
Founded: 2020
Industries
Software
Technologies
HTTPDeveloper Tools
Sectors
Developers
Licenses
BSD-3-Clause
Updated: April 15, 2026
1 person
3 headlines

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