# 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) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 217 | [Outlier AI](https://openaitools.app/tool/outlier-ai) | 10,372,036 | +7.6% | Paid | Get paid to train the next generation of AI models | — | [.md](https://openaitools.app/tool/outlier-ai.md) | | 218 | [Cleanvoice AI](https://openaitools.app/tool/cleanvoice-ai) | 913,998 | +8.2% | Freemium | AI audio and video podcast editor that cleans up recordings in minutes | — | [.md](https://openaitools.app/tool/cleanvoice-ai.md) | | 219 | [mcp-use](https://openaitools.app/tool/mcp-use) | 5,746 | -2.9% | Contact for Pricing | Open-source framework and cloud for building, deploying and testing MCP servers | — | [.md](https://openaitools.app/tool/mcp-use.md) | | 220 | [ComfyOnline](https://openaitools.app/tool/comfyonline) | 19,465 | -30.7% | Freemium, Paid | Run ComfyUI workflows in the cloud and ship them as APIs | — | [.md](https://openaitools.app/tool/comfyonline.md) | | 221 | [ELSA Speak](https://openaitools.app/tool/elsaspeak-com) | 958,654 | -21.9% | Freemium, Free Trial | AI English speaking coach with instant pronunciation feedback | — | [.md](https://openaitools.app/tool/elsaspeak-com.md) | | 222 | [Cleanup.pictures](https://openaitools.app/tool/cleanup-pictures) | 853,632 | -18% | Freemium | Erase people, objects and watermarks from any photo in seconds | — | [.md](https://openaitools.app/tool/cleanup-pictures.md) | | 223 | [Novita AI](https://openaitools.app/tool/novita-ai) | 271,371 | -10.4% | Paid | One cloud for 200+ model APIs, agent sandboxes and GPU compute | — | [.md](https://openaitools.app/tool/novita-ai.md) | | 224 | [Adversa AI](https://openaitools.app/tool/adversa-ai) | 15,868 | +10.4% | Contact for Pricing | Coding agent security that stops AI-driven risk before it lands | — | [.md](https://openaitools.app/tool/adversa-ai.md) | | 225 | [RealEstateAPI](https://openaitools.app/tool/realestateapi-com) | 14,589 | +3.4% | Contact for Pricing | Developer-first API for U.S. property data, valuations and address verification | — | [.md](https://openaitools.app/tool/realestateapi-com.md) | | 226 | [APIDot](https://openaitools.app/tool/apidot) | 10,487 | -33% | Freemium, Paid | One API key for premium image, video, music, chat and 3D generation models | — | [.md](https://openaitools.app/tool/apidot.md) | | 227 | [Erase.bg](https://openaitools.app/tool/erase-bg) | 761,610 | -12.1% | Freemium | Free AI background removal for HD images and video | — | [.md](https://openaitools.app/tool/erase-bg.md) | | 228 | [Assessment Systems (assess.com)](https://openaitools.app/tool/assess-com) | 53,615 | +3.8% | Contact for Pricing | Enterprise online exam platform with professional psychometrics | — | [.md](https://openaitools.app/tool/assess-com.md) | | 229 | [Certiverse](https://openaitools.app/tool/certiverse-com) | 79,501 | +6.3% | Contact for Pricing | End-to-end certification platform built by psychometricians | — | [.md](https://openaitools.app/tool/certiverse-com.md) | | 230 | [Higress](https://openaitools.app/tool/higress) | 13,318 | -17.9% | Contact for Pricing | Open-source AI gateway for LLM APIs, agents and MCP servers | — | [.md](https://openaitools.app/tool/higress.md) | | 231 | [Browser Cloud by TestMu AI](https://openaitools.app/tool/browser-cloud-by-testmu-ai) | 901,340 | +13.2% | Freemium, Paid, Contact for Pricing, Free | Real cloud Chrome sessions for AI agents | — | [.md](https://openaitools.app/tool/browser-cloud-by-testmu-ai.md) | | 232 | [Magic Eraser](https://openaitools.app/tool/magic-eraser) | 883,631 | +10.2% | Freemium | Erase unwanted objects from photos in seconds — free and no signup | — | [.md](https://openaitools.app/tool/magic-eraser.md) | | 233 | [Command Code](https://openaitools.app/tool/command-code) | 2,358,177 | -12.1% | Freemium, Contact for Pricing | The coding agent that learns your coding taste | — | [.md](https://openaitools.app/tool/command-code.md) | | 234 | [Vbee AI Voice](https://openaitools.app/tool/vbee-ai-voice) | 563,444 | +12.1% | Free Trial, Contact for Pricing | Vietnamese AI text-to-speech, voice cloning, and dubbing for creators | — | [.md](https://openaitools.app/tool/vbee-ai-voice.md) | | 235 | [Salad](https://openaitools.app/tool/salad-gpu-cloud) | 713,519 | +10.4% | Free Trial, Paid, Contact for Pricing | Distributed GPU cloud that orchestrates the world's idle consumer GPUs | — | [.md](https://openaitools.app/tool/salad-gpu-cloud.md) | | 236 | [Lingvanex](https://openaitools.app/tool/lingvanex) | 661,553 | -9% | Contact for Pricing | On-premise translation and speech recognition for enterprises | — | [.md](https://openaitools.app/tool/lingvanex.md) | | 237 | [Dify](https://openaitools.app/tool/dify-ai) | 819,691 | -15% | Freemium | Build, deploy, and govern production-ready agentic AI workflows | — | [.md](https://openaitools.app/tool/dify-ai.md) | | 238 | [AProxy](https://openaitools.app/tool/aproxy) | 36,540 | -41.4% | Free Trial, Paid | Residential, ISP, and datacenter proxy network built for AI-scale web data collection | — | [.md](https://openaitools.app/tool/aproxy.md) | | 239 | [MusicGPT](https://openaitools.app/tool/musicgpt) | 788,044 | -30.6% | Freemium | Generate songs, beats, sound effects and voiceovers with AI | — | [.md](https://openaitools.app/tool/musicgpt.md) | | 240 | [DET Practice](https://openaitools.app/tool/det-practice) | 115,015 | +15.9% | Freemium | Ace the Duolingo English Test with AI scoring and 18,000+ practice questions | — | [.md](https://openaitools.app/tool/det-practice.md) | Page 10 of 84 · [← Previous page](https://openaitools.app/index.md?q=API+Testing&page=9) · [Next page →](https://openaitools.app/index.md?q=API+Testing&page=11) For programmatic access use `https://openaitools.app/api/tools?q=…` or MCP `https://openaitools.app/api/mcp`. --- Source: https://openaitools.app/?q=API%20Testing More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)