CheckAPI – Modern, affordable API monitoring for indie hackers and small teams

Summary: CheckAPI provides 24/7 API monitoring with instant alerts via multiple channels, featuring a modern UI and open-source codebase. It tracks uptime, response times, and incidents, offering a fast setup and affordable pricing tailored for indie hackers and small teams.

What it does

CheckAPI monitors APIs continuously and sends instant notifications through Email, Slack, Telegram, Discord, or Webhooks when an API goes down. It tracks uptime, response times, and incidents using a backend built with FastAPI, Celery, and Redis, and a frontend developed in Next.js 14 with TypeScript and Tailwind CSS.

Who it's for

It is designed for solo developers, indie hackers, and small teams of 2–10 people who need affordable, developer-friendly API monitoring without enterprise pricing or complexity.

Why it matters

CheckAPI addresses the lack of affordable, modern API monitoring tools by providing a transparent, open-source solution with a clean interface and quick setup, reducing costs and setup time compared to legacy enterprise services.