# AI tools for “Chat-to-API”

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

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

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Kie.ai](https://openaitools.app/tool/kie-ai-affordable-secure-deepseek-r1-api) | 2,275,553 | -22.4% | Pay-as-you-go | One API key for video, image, music, and chat models | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/kie-ai-affordable-secure-deepseek-r1-api.md) |
| 2 | [OpenAI Platform](https://openaitools.app/tool/openai) | 234,678,639 | -9.6% | Paid | Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents. | category: ai-api; keywords 51%; semantic match | [.md](https://openaitools.app/tool/openai.md) |
| 3 | [CometAPI](https://openaitools.app/tool/cometapi) | 602,966 | +49.7% | Pay-as-you-go (credits) | One OpenAI-compatible API key for 500+ AI models | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/cometapi.md) |
| 4 | [ZenMux](https://openaitools.app/tool/zenmux) | 444,394 | +16.7% | Freemium, Paid | One unified API for 100+ AI models, with insurance when output disappoints | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/zenmux.md) |
| 5 | [Chatbase](https://openaitools.app/tool/chatbase) | 396,383 | -7% | Freemium, Paid | Build customer-facing AI agents for support, sales, and product guidance | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/chatbase.md) |
| 6 | [Chat Data](https://openaitools.app/tool/chat-data) | 181,358 | +275.8% | Freemium, Paid | Build custom AI agents and support chatbots trained on your own data, across every channel | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/chat-data.md) |
| 7 | [GPTProto](https://openaitools.app/tool/gptproto) | 148,457 | +15.4% | Pay-as-you-go | One API key, one balance, 200+ text, image, video and audio models | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/gptproto.md) |
| 8 | [PoYo.AI](https://openaitools.app/tool/poyo-ai) | 126,258 | -16.2% | Free Trial, Paid | One API key for 500+ image, video, music, chat, and 3D models | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/poyo-ai.md) |
| 9 | [Callbell](https://openaitools.app/tool/callbell) | 487,975 | -24% | Freemium, Free Trial, Paid, Contact for Pricing | One shared inbox for WhatsApp, Instagram, Messenger, Telegram and web chat — with AI agents on top. | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/callbell.md) |
| 10 | [Chat01.ai](https://openaitools.app/tool/chat01-ai) | 122,748 | -15.4% | Freemium | Free, unlimited-feeling access to frontier ChatGPT-style models in your browser | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/chat01-ai.md) |
| 11 | [ChatPDF](https://openaitools.app/tool/chatpdf) | 1,044,477 | -3.7% | Freemium | Chat with any PDF, video, or website and get cited answers in seconds | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/chatpdf.md) |
| 12 | [Privatemode AI](https://openaitools.app/tool/privatemode-ai) | 73,071 | +28.2% | Free Trial, Paid, Contact for Pricing | Confidential AI chat and API where your data stays encrypted even during processing | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/privatemode-ai.md) |
| 13 | [PDF.ai](https://openaitools.app/tool/pdf-ai) | 387,819 | -5.5% | Freemium, Free Trial | Chat with any PDF and get cited answers instantly | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/pdf-ai.md) |
| 14 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | category: ai-api; keywords 51% | [.md](https://openaitools.app/tool/claude-2.md) |
| 15 | [Wasapi](https://openaitools.app/tool/wasapi-io) | 58,485 | +1.8% | Free Trial, Paid | The WhatsApp platform for teams that sell and support at scale | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/wasapi-io.md) |
| 16 | [Qwen 4 (Alibaba Qwen4)](https://openaitools.app/tool/qwen-4) | 35,101,353 | -6.2% | Freemium | Alibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context. | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/qwen-4.md) |
| 17 | [reAPI](https://openaitools.app/tool/reapi) | 20,221 | +888.3% | Paid | One OpenAI-compatible API across image, video, chat, music and code models | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/reapi.md) |
| 18 | [Crazyrouter](https://openaitools.app/tool/crazyrouter) | 77,144 | +1.8% | Paid | One API key, hundreds of AI models behind a single endpoint | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/crazyrouter.md) |
| 19 | [DeepSeek](https://openaitools.app/tool/deepseek) | 372,761,591 | +4.3% | Freemium | High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs. | category: ai-api; keywords 51% | [.md](https://openaitools.app/tool/deepseek.md) |
| 20 | [TapTalk.io](https://openaitools.app/tool/taptalk-io) | 18,804 | -33.9% | Paid | One inbox for every channel, with a no-code GenAI chatbot | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/taptalk-io.md) |
| 21 | [Botnoi Chatbot](https://openaitools.app/tool/botnoi-ai) | 82,620 | -24% | Freemium | Build no-code AI agents that answer customers on chat and phone 24/7. | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/botnoi-ai.md) |
| 22 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | semantic match | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 23 | [ChatKit](https://openaitools.app/tool/chatkit) | 3,846 | -12.2% | Paid | A refined ChatGPT interface powered by your own API key | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/chatkit.md) |
| 24 | [Google AI Studio](https://openaitools.app/tool/google-ai-studio) | 112,620,020 | +2% | Freemium | Google's rapid prototyping IDE and developer API workbench for building multimodal applications with Gemini models. | category: ai-api; keywords 51% | [.md](https://openaitools.app/tool/google-ai-studio.md) |

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Source: https://openaitools.app/?q=Chat-to-API

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