OpenAPI and llms.txt
Machine-readable descriptions of the API.
Two files describe the API in machine-readable form: openapi.json for code generators and API clients, llms.txt for AI agents.
openapi.json
The specification in OpenAPI 3.0 format describes the endpoints with their main parameters, responses, errors and authentication. It also covers the events that webhooks deliver. For every detail, this documentation is authoritative.
URL
https://handelsregister.ai/openapi.json
How to use it:
- With a generator such as OpenAPI Generator, you create a typed client for your language.
- Import the file into Postman, Insomnia or Bruno and you have all requests at hand right away.
- Agent frameworks build tool definitions for a language model from the file.
Open the URL in your browser, save the file and import it.
Within version 1, new fields and values are added and existing ones stay. Build your client so that it ignores unknown fields. More in the changelog.
llms.txt
llms.txt sums up the API as a short text for language models: endpoints, parameters, features, prices and the most important rules.
URL
https://handelsregister.ai/llms.txt
Give the URL to your AI agent before it writes code for the API. That way it knows the real parameter names and response fields.