# AI tools for “API Testing”

2,000 matching tools; showing 24, ranked by relevance.

Related categories: [ai-testing](https://openaitools.app/category/ai-testing.md), [ai-api](https://openaitools.app/category/ai-api.md)

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1969 | [YouTube Caption Translator](https://openaitools.app/tool/youtube-caption-translator) | 0 | — | Free | Translate YouTube captions in 15 languages with your own Gemini API key | — | [.md](https://openaitools.app/tool/youtube-caption-translator.md) |
| 1970 | [Conversor de Áudio para Texto](https://openaitools.app/tool/conversor-de-udio-para-texto) | 0 | — | Freemium | Chrome extension that turns audio and microphone speech into text with OpenAI | — | [.md](https://openaitools.app/tool/conversor-de-udio-para-texto.md) |
| 1971 | [ChatKuma - ChatGPT Extension](https://openaitools.app/tool/chatkuma-chatgpt%E6%8F%92%E4%BB%B6) | 0 | — | Paid | A ChatGPT sidebar with web search, image generation, and document RAG | — | [.md](https://openaitools.app/tool/chatkuma-chatgpt%E6%8F%92%E4%BB%B6.md) |
| 1972 | [LLM Text Summarizer](https://openaitools.app/tool/llm-text-summarizer) | 0 | — | Free | Right-click any text and get an AI summary | — | [.md](https://openaitools.app/tool/llm-text-summarizer.md) |
| 1973 | [AI Board (GPT Support)](https://openaitools.app/tool/ai-board-gpt-support) | 0 | — | Contact for Pricing | Corporate-grade ChatGPT and Gemini access with data masking, QA logs and central controls. | — | [.md](https://openaitools.app/tool/ai-board-gpt-support.md) |
| 1974 | [Title and Content Generator by nConnect](https://openaitools.app/tool/title-and-content-generator-by-nconnect) | 0 | — | Freemium | Draft SEO page titles and content descriptions in Chrome using your own ChatGPT API key. | — | [.md](https://openaitools.app/tool/title-and-content-generator-by-nconnect.md) |
| 1975 | [마케팅 크롬확장 앱 (Marketing Chrome Extension)](https://openaitools.app/tool/ji9rav2ikmn2hw72o6june7rwx3b5jfq) | 0 | — | Paid | AI-assisted Naver Ji-sik-in answer writing in Chrome | — | [.md](https://openaitools.app/tool/ji9rav2ikmn2hw72o6june7rwx3b5jfq.md) |
| 1976 | [마케팅 크롬확장 프로그램 (Marketing Chrome Extension)](https://openaitools.app/tool/x4gfqxotpxtdkfl8bspqa6q8mizb7foj) | 0 | — | Paid | A Chrome extension that drafts Naver 지식iN answers with your own OpenAI API key. | — | [.md](https://openaitools.app/tool/x4gfqxotpxtdkfl8bspqa6q8mizb7foj.md) |
| 1977 | [OpenRepli](https://openaitools.app/tool/openrepli) | 0 | — | Free | Free, signup-free AI replies for LinkedIn, Twitter/X and Instagram using your own OpenAI key. | — | [.md](https://openaitools.app/tool/openrepli.md) |
| 1978 | [Upwork Cover Letter Generator with Chat GPT](https://openaitools.app/tool/upwork-cover-letter-generator-with-chat-gpt) | 0 | — | Free | Draft Upwork cover letters from the job page with your own ChatGPT API key | — | [.md](https://openaitools.app/tool/upwork-cover-letter-generator-with-chat-gpt.md) |
| 1979 | [One Paragraph](https://openaitools.app/tool/one-paragraph) | 0 | — | Freemium | Turn any selected text into a single crisp paragraph with your own OpenAI key | — | [.md](https://openaitools.app/tool/one-paragraph.md) |
| 1980 | [ChatGPT Keyword Assistant](https://openaitools.app/tool/chatgpt-keyword-assistant) | 0 | — | Freemium, Paid | Get smarter keyword suggestions in Google Search with the ChatGPT API | — | [.md](https://openaitools.app/tool/chatgpt-keyword-assistant.md) |
| 1981 | [FO Translator](https://openaitools.app/tool/fo-translator) | 0 | — | Free | Open-source AI translation with an agent reflection workflow | — | [.md](https://openaitools.app/tool/fo-translator.md) |
| 1982 | [Manaliza Pro](https://openaitools.app/tool/manaflow-link) | 0 | — | Freemium | Prepare, go live, cut Shorts and optimise — one browser studio for news and YouTube | — | [.md](https://openaitools.app/tool/manaflow-link.md) |
| 1983 | [Sanket's OpenAI Search](https://openaitools.app/tool/sanket-s-openai-search) | 0 | — | Freemium, Free | A lightweight Chrome side panel that brings OpenAI search, summaries and grammar fixes to any page. | — | [.md](https://openaitools.app/tool/sanket-s-openai-search.md) |
| 1984 | [Sagai - Writing Assistant](https://openaitools.app/tool/sagai-writing-assistant) | 0 | — | Free | A proofreader in your browser, one highlight at a time | — | [.md](https://openaitools.app/tool/sagai-writing-assistant.md) |
| 1985 | [Alt Text Generator for X (formerly Twitter)](https://openaitools.app/tool/%E4%BB%A3%E6%9B%BF-%E7%94%9F%E6%88%90-for-x-%E6%97%A7twitter) | 0 | — | Free | Auto-generate accessible alt text for the images you post on X | — | [.md](https://openaitools.app/tool/%E4%BB%A3%E6%9B%BF-%E7%94%9F%E6%88%90-for-x-%E6%97%A7twitter.md) |
| 1986 | [Text-to-Speech with OpenAI TTS](https://openaitools.app/tool/text-to-speech-with-openai-tts) | 0 | — | Freemium | Read any selected web text aloud with OpenAI's natural voices | — | [.md](https://openaitools.app/tool/text-to-speech-with-openai-tts.md) |
| 1987 | [CatPaw: Fast AI Keyboard](https://openaitools.app/tool/catpaw-ai-keyboard) | 0 | — | Freemium | A fast AI keyboard for iPhone that runs on your own ChatGPT or Gemini API | — | [.md](https://openaitools.app/tool/catpaw-ai-keyboard.md) |
| 1988 | [Youtube Transcript AI Summary](https://openaitools.app/tool/youtube-transcript-ai-summary) | 0 | — | Freemium | Summarize YouTube transcripts with ChatGPT, Claude or Gemini | — | [.md](https://openaitools.app/tool/youtube-transcript-ai-summary.md) |
| 1989 | [Hyperlink Summariser - GPT](https://openaitools.app/tool/hyperlink-summariser-gpt) | 0 | — | Freemium | Summarise linked pages with GPT without leaving your article | — | [.md](https://openaitools.app/tool/hyperlink-summariser-gpt.md) |
| 1990 | [MindPeer Research Assistant](https://openaitools.app/tool/mindpeer-research-assistant) | 0 | — | Freemium | AI web summaries and instant research reports in your browser | — | [.md](https://openaitools.app/tool/mindpeer-research-assistant.md) |
| 1991 | [Prompta](https://openaitools.app/tool/prompta) | 0 | — | Freemium | Bring your own ChatGPT key to a fast, automation-ready iOS chat app | — | [.md](https://openaitools.app/tool/prompta.md) |
| 1992 | [Copy Image without Background](https://openaitools.app/tool/copy-image-without-background) | 0 | — | Freemium | Right-click any web image and copy it with the background removed via your own remove.bg API key. | — | [.md](https://openaitools.app/tool/copy-image-without-background.md) |

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Source: https://openaitools.app/?q=API%20Testing

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