# AI tools for “API builder”

1,989 matching tools; showing 24, ranked by relevance.

Filters: `platform=website`

Related categories: [ai-website-builder](https://openaitools.app/category/ai-website-builder.md), [ai-app-builder](https://openaitools.app/category/ai-app-builder.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; keywords 100%; semantic match | [.md](https://openaitools.app/tool/openai.md) |
| 2 | [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 100%; semantic match | [.md](https://openaitools.app/tool/google-ai-studio.md) |
| 3 | [MindStudio](https://openaitools.app/tool/mindstudio) | 1,793,337 | +14.2% | Contact for Pricing | No-code builder for custom AI agents and workflows | category: ai-app-builder, ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/mindstudio.md) |
| 4 | [APIMaster](https://openaitools.app/tool/apimaster) | 210,182 | +46.3% | Paid | One OpenAI-compatible key for discounted GPT, Claude and Gemini access | category: ai-website-builder, ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/apimaster.md) |
| 5 | [v0 by Vercel](https://openaitools.app/tool/v0-dev-by-vercel-labs) | 2,774,275 | -14.3% | Freemium | Prompt to working full-stack web app, published in seconds | category: ai-website-builder, ai-app-builder; keywords 100%; semantic match | [.md](https://openaitools.app/tool/v0-dev-by-vercel-labs.md) |
| 6 | [Lovable](https://openaitools.app/tool/lovable) | 31,052,090 | +3.8% | Freemium | Describe your idea in chat and Lovable turns it into a working app or website | category: ai-website-builder, ai-app-builder; semantic match | [.md](https://openaitools.app/tool/lovable.md) |
| 7 | [Pipedream](https://openaitools.app/tool/pipedream) | 312,216 | -14.3% | Freemium, Paid, Contact for Pricing | Managed auth and 10,000+ tools for the agents you're building | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/pipedream.md) |
| 8 | [Xano](https://openaitools.app/tool/xano) | 77,319 | -20% | Freemium | Build, run and govern AI-ready backends, APIs and MCP servers | category: ai-app-builder, ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/xano.md) |
| 9 | [NaN Builders](https://openaitools.app/tool/nan-builders) | 47,153 | +18.7% | Subscription | Shared GPU cluster for open models, billed at a flat rate instead of per token | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/nan-builders.md) |
| 10 | [Enter Pro](https://openaitools.app/tool/enter-pro) | 123,243 | +18.1% | Freemium | Build and deploy apps, websites and AI agents from a prompt | category: ai-website-builder, ai-app-builder, ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/enter-pro.md) |
| 11 | [WeWeb](https://openaitools.app/tool/weweb) | 329,952 | +0.8% | Freemium, Paid | AI app builder with visual editing and full code export | category: ai-website-builder, ai-app-builder; keywords 100%; semantic match | [.md](https://openaitools.app/tool/weweb.md) |
| 12 | [Dyad](https://openaitools.app/tool/dyad) | 207,981 | +3.5% | Freemium | Free, open-source AI app builder that runs on your own machine | category: ai-app-builder; keywords 100%; semantic match | [.md](https://openaitools.app/tool/dyad.md) |
| 13 | [Pollinations](https://openaitools.app/tool/pollinations) | 316,875 | +22.8% | Free | Open infrastructure and one API for generative AI builders | category: ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/pollinations.md) |
| 14 | [BuildShip](https://openaitools.app/tool/buildship) | 37,111 | -20% | Freemium | AI-powered visual workflow builder for backend APIs and automations | category: ai-app-builder, ai-api; keywords 100%; semantic match | [.md](https://openaitools.app/tool/buildship.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 100%; semantic match | [.md](https://openaitools.app/tool/vapi.md) |
| 16 | [Emergent](https://openaitools.app/tool/emergent) | 5,788,850 | +5% | Freemium | Describe an app in chat and ship it | category: ai-website-builder, ai-app-builder; semantic match | [.md](https://openaitools.app/tool/emergent.md) |
| 17 | [Luxe-magnate-core](https://openaitools.app/tool/luxe-magnate-core) | 3,694,734 | +40.5% | Freemium, Contact for Pricing | Describe what you want and an AI agent builds the website, app, or SaaS product for you. | category: ai-website-builder, ai-app-builder; semantic match | [.md](https://openaitools.app/tool/luxe-magnate-core.md) |
| 18 | [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 55% | [.md](https://openaitools.app/tool/claude-2.md) |
| 19 | [RunningHub](https://openaitools.app/tool/runninghub) | 3,105,554 | -28.5% | Freemium | Cloud ComfyUI platform to run workflows and build AI apps | category: ai-app-builder, ai-api; keywords 100% | [.md](https://openaitools.app/tool/runninghub.md) |
| 20 | [BigModel](https://openaitools.app/tool/bigmodel) | 5,700,686 | -17% | Freemium | Zhipu AI's open platform for GLM large models, multimodal APIs, and agent building | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/bigmodel.md) |
| 21 | [Jet Admin](https://openaitools.app/tool/jet-admin) | 107,335 | +39.2% | Freemium, Free Trial, Paid, Contact for Pricing | Build secure business apps, workflows and AI agents on your existing data | category: ai-app-builder; keywords 100%; semantic match | [.md](https://openaitools.app/tool/jet-admin.md) |
| 22 | [Composio](https://openaitools.app/tool/composio) | 2,782,603 | +22.8% | Freemium, Contact for Pricing | Give your AI agents secure, authenticated access to 1,700+ apps | category: ai-api; keywords 55%; semantic match | [.md](https://openaitools.app/tool/composio.md) |
| 23 | [Postman](https://openaitools.app/tool/postman) | 1,764,877 | -7.6% | Freemium | Design, test, and govern APIs — now with AI agents in the loop | category: ai-api; keywords 55%; semantic match | [.md](https://openaitools.app/tool/postman.md) |
| 24 | [Runway](https://openaitools.app/tool/runwayml) | 7,498,396 | +16.9% | Freemium, Paid, Contact for Pricing | Generative video, image, and audio tools built on frontier AI research | category: ai-api; keywords 100% | [.md](https://openaitools.app/tool/runwayml.md) |

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