# AI tools for “custom API endpoint”

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

Related categories: [ai-customer-service](https://openaitools.app/category/ai-customer-service.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) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 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; semantic match | [.md](https://openaitools.app/tool/openai.md) |
| 2 | [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 79%; semantic match | [.md](https://openaitools.app/tool/openrouter-ai.md) |
| 3 | [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 79%; semantic match | [.md](https://openaitools.app/tool/ai-ml-api.md) |
| 4 | [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 79%; semantic match | [.md](https://openaitools.app/tool/cometapi.md) |
| 5 | [Runware](https://openaitools.app/tool/runware) | 402,862 | +27.1% | Paid | One API for 400K+ AI models, plus serverless and reserved GPUs on modular data centers | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/runware.md) |
| 6 | [MuAPI](https://openaitools.app/tool/muapi) | 412,788 | +13.7% | Freemium | One API for every generative image, video and audio model | category: ai-api; keywords 79%; semantic match | [.md](https://openaitools.app/tool/muapi.md) |
| 7 | [Stable Diffusion API](https://openaitools.app/tool/stablediffusion-api) | 26,802 | -21.8% | Paid | One REST endpoint for SD 1.5, SDXL, Flux and 10,000+ community models | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/stablediffusion-api.md) |
| 8 | [AiHubMix](https://openaitools.app/tool/aihubmix) | 238,455 | -16.1% | Contact for Pricing | One API key for hundreds of AI models | category: ai-api; keywords 79%; semantic match | [.md](https://openaitools.app/tool/aihubmix.md) |
| 9 | [Treg](https://openaitools.app/tool/treg) | 452,935 | +223.4% | Freemium | One key for 4,100+ agent tools, pay per call | category: ai-api; keywords 79%; semantic match | [.md](https://openaitools.app/tool/treg.md) |
| 10 | [Together AI](https://openaitools.app/tool/together-ai) | 1,645,930 | +64.9% | Freemium, Paid | Together AI is the AI Native Cloud — a full-stack platform for running, fine-tuning and training open-source models. It spans serverless inference APIs, dedicated endpoints, GPU clusters, post-training and storage, all b | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/together-ai.md) |
| 11 | [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) |
| 12 | [EvoLink AI Model API](https://openaitools.app/tool/evolink-ai-model-api) | 312,573 | -27% | Free Trial, Paid, Contact for Pricing | One API for LLM, image, video, and audio models in production | category: ai-api; keywords 79%; semantic match | [.md](https://openaitools.app/tool/evolink-ai-model-api.md) |
| 13 | [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 79%; semantic match | [.md](https://openaitools.app/tool/ofoxai.md) |
| 14 | [Flatkey](https://openaitools.app/tool/flatkey-ai) | 49,134 | -40.8% | Paid, Contact for Pricing | One API key for frontier models, 1,000+ AI tools, and one invoice | category: ai-api; keywords 79%; semantic match | [.md](https://openaitools.app/tool/flatkey-ai.md) |
| 15 | [APIMODELS](https://openaitools.app/tool/apimodels) | 45,042 | +12% | Paid | One API key, 165+ image, video, audio and LLM models at up to 95% below official pricing | category: ai-api; keywords 79%; semantic match | [.md](https://openaitools.app/tool/apimodels.md) |
| 16 | [Groq](https://openaitools.app/tool/groq) | 3,987,936 | +10% | Paid | Ultra-fast AI inference on the LPU and LPX platform | category: ai-api; semantic match | [.md](https://openaitools.app/tool/groq.md) |
| 17 | [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 79%; semantic match | [.md](https://openaitools.app/tool/crazyrouter.md) |
| 18 | [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 79%; semantic match | [.md](https://openaitools.app/tool/zenmux.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 | [.md](https://openaitools.app/tool/deepseek.md) |
| 20 | [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 79%; semantic match | [.md](https://openaitools.app/tool/beatapi-ai-model-data-web-apis-for-agents.md) |
| 21 | [fal.ai](https://openaitools.app/tool/fal-ai) | 3,093,684 | -3.7% | Paid, pay-as-you-go usage-based pricing | One API for 1,500+ production-ready generative media models | category: ai-api; semantic match | [.md](https://openaitools.app/tool/fal-ai.md) |
| 22 | [Anakin](https://openaitools.app/tool/anakin) | 76,886 | -31.6% | Freemium | One scraping API that turns any website into agent-ready JSON | category: ai-api; keywords 79%; semantic match | [.md](https://openaitools.app/tool/anakin.md) |
| 23 | [Glean](https://openaitools.app/tool/glean) | 3,301,875 | +0.1% | Contact for Pricing | Enterprise AI grounded in your company's own knowledge | category: ai-api; semantic match | [.md](https://openaitools.app/tool/glean.md) |
| 24 | [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; semantic match | [.md](https://openaitools.app/tool/kie-ai-affordable-secure-deepseek-r1-api.md) |

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