# AI tools for “GPT API integration”

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 | [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 100%; semantic match | [.md](https://openaitools.app/tool/openai.md) |
| 2 | [AI/ML API](https://openaitools.app/tool/ai-ml-api) | 232,946 | -20.1% | Pay-as-you-go credits (free to start); enterprise custom pricing on request | One universal API for 500+ AI models and 1,000+ agentic tools | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/ai-ml-api.md) |
| 3 | [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 60% | [.md](https://openaitools.app/tool/deepseek.md) |
| 4 | [ZeroGPT](https://openaitools.app/tool/zerogpt) | 32,864,541 | +19.7% | Freemium, Paid | AI content detection and a full writing toolkit in one place | category: ai-api; semantic match | [.md](https://openaitools.app/tool/zerogpt.md) |
| 5 | [MacGPT](https://openaitools.app/tool/macgpt) | 26,224 | -7.5% | Freemium | ChatGPT in your Mac menu bar, inline and everywhere | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/macgpt.md) |
| 6 | [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 | [.md](https://openaitools.app/tool/claude-2.md) |
| 7 | [Wokey](https://openaitools.app/tool/wokey) | 55,092 | +202.2% | Paid | One verifiable API key for Claude, GPT, Kimi and Grok at a fraction of list price | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/wokey.md) |
| 8 | [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 60%; semantic match | [.md](https://openaitools.app/tool/cometapi.md) |
| 9 | [GPT Image 2 API (APIMart)](https://openaitools.app/tool/gpt-image-2api) | 383,148 | +6.3% | Paid, Contact for Pricing | A developer endpoint for OpenAI's GPT Image 2 model with 1K–4K output and pay-as-you-go pricing | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/gpt-image-2api.md) |
| 10 | [APIMart](https://openaitools.app/tool/apimart) | 383,148 | +6.3% | Freemium, Paid | One OpenAI-compatible API for 190+ text, image, video and audio models | category: ai-api; keywords 71%; semantic match | [.md](https://openaitools.app/tool/apimart.md) |
| 11 | [ToAPIs](https://openaitools.app/tool/toapis) | 14,757 | -51.4% | Free Trial, Paid | One OpenAI-compatible key for 200+ text, image and video models | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/toapis.md) |
| 12 | [OminiGate](https://openaitools.app/tool/ominigate) | 12,708 | -1.8% | Paid, Contact for Pricing | One key, one balance, and every major text, image, and video model behind a single OpenAI-compatible endpoint. | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/ominigate.md) |
| 13 | [Flaq AI](https://openaitools.app/tool/flaq-ai-api-platform) | 328,715 | +127.9% | Paid | One API key for the world's leading image, video and language models | category: ai-api; keywords 60%; semantic match | [.md](https://openaitools.app/tool/flaq-ai-api-platform.md) |
| 14 | [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 60%; semantic match | [.md](https://openaitools.app/tool/gptproto.md) |
| 15 | [Vapi](https://openaitools.app/tool/vapi) | 662,301 | -11.4% | Freemium | Build, test, and deploy production-grade voice AI agents over API | category: ai-api; keywords 60%; semantic match | [.md](https://openaitools.app/tool/vapi.md) |
| 16 | [OpenRouter](https://openaitools.app/tool/openrouter-ai) | 19,941,437 | -6.2% | Paid | One API key for hundreds of AI models from every major provider | category: ai-api; keywords 60% | [.md](https://openaitools.app/tool/openrouter-ai.md) |
| 17 | [APIMaster](https://openaitools.app/tool/apimaster) | 210,182 | +46.3% | Paid | One OpenAI-compatible key for discounted GPT, Claude and Gemini access | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/apimaster.md) |
| 18 | [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 | [.md](https://openaitools.app/tool/google-ai-studio.md) |
| 19 | [OrcaRouter](https://openaitools.app/tool/orcarouter) | 975,300 | -5.2% | Freemium | One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control | category: ai-api; semantic match | [.md](https://openaitools.app/tool/orcarouter.md) |
| 20 | [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 71%; semantic match | [.md](https://openaitools.app/tool/crazyrouter.md) |
| 21 | [OfoxAI](https://openaitools.app/tool/ofoxai) | 239,718 | +12.7% | — | One API key, 100+ LLMs, official pricing with no platform markup | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/ofoxai.md) |
| 22 | [DeepL](https://openaitools.app/tool/deepl) | 95,110,871 | -1.7% | Freemium | Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages. | category: ai-api | [.md](https://openaitools.app/tool/deepl.md) |
| 23 | [BeatAPI](https://openaitools.app/tool/beatapi-ai-model-data-web-apis-for-agents) | 99,987 | +1,012.7% | Freemium | One API key for 70+ AI models, 1,000+ data APIs and web tools | category: ai-api; keywords 60%; semantic match | [.md](https://openaitools.app/tool/beatapi-ai-model-data-web-apis-for-agents.md) |
| 24 | [Crun AI](https://openaitools.app/tool/crun-ai) | 85,008 | -30.9% | Free Trial, Paid | One API for 100+ top video, image and audio AI models | category: ai-api; keywords 60%; semantic match | [.md](https://openaitools.app/tool/crun-ai.md) |

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

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