Hello API

Hello API is a tool that helps companies turn static API documentation into an interactive, web-based playground. Instead of just reading about endpoints, developers can test API calls directly in their browser, see live responses, and experiment without setting up a local environment. This makes it easier for users to understand how an API works and speeds up the integration process.

The tool works by taking your API specification and generating a full-featured playground. Key features include instant code generation for popular programming languages, a fast search function to navigate endpoints, and SEO optimization so your API is more discoverable. A visual editor for creating OpenAPI specifications is also in development, aiming to remove the need for manual spec writing.

Hello API is built for teams that provide an API to other developers. It helps API product owners, developer relations teams, and software companies improve their developer experience. The main goal is to turn confused users into happy customers by making the initial integration simpler and reducing the load on support teams. Real-world demos show it working with APIs from Notion, Stripe, and Slack.