API UP – A SaaS platform that lets you create and host APIs instantly

API UP is a SaaS platform where you can create, deploy, and manage APIs without setting up servers or writing boilerplate.

You define your schema, commands, and rules, and API UP generates a full async API, with background tasks, authorization, built-in multi-tenant support, CRUD/search, and optimized defaults for performance and security.

What makes it different from “no-code API builders”: • new Python 3.14 web framework compiled in C • it’s not low-code — it generates a real Python project • automatic query optimization • multi-version deploy flow (dev → alpha → release) • admin UI + CLI included • SDKs for web/mobile • can self-host later if needed • multi-database support (MongoDB, Redis, etc.)

You can create an API, test it, deploy it, and call it from mobile/web apps — all self-managed inside the UI.

You can try it here: https://apiup.ai

Documentation: https://docs.apiup.ai

Early users can already play with the UI. Feedback welcome.