When asked for the best API testing tool, 6 AI assistants named 5 brands between them this month. Postman was named most often, followed by Insomnia and Bruno. One brand was named by every assistant that answered: Postman.
Who named whom
| Brand | ChatGPT | Perplexity | Claude | Grok | DeepSeek | Cohere | Named by |
|---|---|---|---|---|---|---|---|
| Postman | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | 6 of 6 |
| Insomnia | ✓ | · | ✓ | · | ✓ | ✓ | 4 of 6 |
| Bruno | · | ✓ | · | ✓ | ✓ | · | 3 of 6 |
| Hoppscotch | ✓ | · | ✓ | ✓ | · | · | 3 of 6 |
| Katalon Studio | ✓ | · | · | · | · | ✓ | 2 of 6 |
Share of voice
What each assistant said
ChatGPT
Named 4 brands, in this order: Postman, Insomnia, Hoppscotch, Katalon Studio.
When considering the best API testing tool for a small business, you want a tool that is cost-effective, easy to use, and provides the necessary features to meet your testing needs.
Perplexity
Named 2 brands, in this order: Postman, Bruno.
For a small business, the best default choice is usually Postman because it is widely used, has a free tier, and is described as an accessible starting point for API testing and collaboration.
Claude
Named 3 brands, in this order: Postman, Insomnia, Hoppscotch.
Grok
Named 3 brands, in this order: Postman, Bruno, Hoppscotch.
DeepSeek
Named 3 brands, in this order: Postman, Insomnia, Bruno.
For a small business, the "best" API testing tool depends on your team's technical level, budget, and whether you need just testing or also monitoring.
Cohere
Named 3 brands, in this order: Postman, Insomnia, Katalon Studio.
Choosing the best API testing tool for a small business depends on factors like budget, ease of use, scalability, and specific testing needs.
The questions asked
- What is the best API testing tool for a small business?
Asked between 2026-09-26 and 2026-09-26. Not answering this month: Gemini, Mistral.
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See the GEO suiteHow this was measured
Each month we ask every assistant the same plain buyer questions, worded the way a person shopping for this kind of product would ask them, with no brand suggested in the question except where the question itself names the market leader to find alternatives to. Each assistant answers in a fresh session with no earlier conversation, so an answer reflects what the assistant says to anyone who asks, not what it was steered towards.
From each answer we keep the product and company names it recommends. A name counts only when it appears in the answer as a proper name, is not a heading such as "Best for" or "Pricing", and is confirmed by a second assistant naming it too, by a website the answer cites, or by being the market leader named in the question. Share of voice is each brand's share of all brand mentions in the category this month. Assistants that could not answer this month are listed as not answering, never counted as naming nobody.
Cite this page
https://mentionfox.com/ai-recommends/api-testing-tools