OpenAPI Tools
Your APIs, Now AI Tools
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Sankar Kumar

OpenAPI Tools - Your APIs, Now AI Tools

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Whether it's your own API or a third-party service like Calendly or Stripe, you can now connect and start using them instantly in your AI workflows—no complex coding required and for free.

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Sankar Kumar
Maker
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I’m Sankar, and along with my friend Abhinav, we built OpenAPI Tools to make AI tool development radically simpler. We noticed how painful it is to go from raw APIs to functional tools that can be used in LLM agents. Manually writing input schemas, handling validations, and wiring everything up with LangChain or Anthropic takes a lot of time and is error-prone. So we built a platform where you can: 🚀 Upload your API spec (Swagger/cURL) 🛠️ Instantly generate tools with proper schemas, validations, and logic 🔌 Use them via SDK (with LangChain, OpenAI, Anthropic, etc.) 🧩 Run locally or deploy on your own infra—no vendor lock-in, and we never store secrets We’ve made sure it’s easy to create, manage, and even version your tools. It’s completely free to try—and we’d love your feedback! 💬 Drop any questions or suggestions here—we’re actively listening and building! 👉 Try it out at openapitools.com Thanks so much for the support! 🙌 — Sankar 🚀