# Build with Brigg

Connect your business systems and agents through one published API.

API keys are currently available to selected workspaces. [Contact Brigg](mailto:axel@brigg.no) to enable access.

## Choose your integration

- [Build a server integration](https://developer.brigg.app/developers/quickstart) — create a scoped workspace key and make your first call.
- [Connect an agent](https://developer.brigg.app/developers/mcp) — choose personal or shared workspace access.
- [Receive change events](https://developer.brigg.app/developers/webhooks) — verify signatures and handle durable delivery.

## Explore the API

Browse the [API reference](https://developer.brigg.app/developers/reference) by product area and resource. Every published operation includes request fields, result schemas and access requirements. Workspace-specific app schemas are available through authenticated discovery.

## Integration essentials

Understand [authentication](https://developer.brigg.app/developers/authentication), [permissions](https://developer.brigg.app/developers/permissions), [HTTP conventions](https://developer.brigg.app/developers/http) and [safe retries and limits](https://developer.brigg.app/developers/reliability). Before extending the API, read [publishing app operations](https://developer.brigg.app/developers/publishing).

## Contract lifecycle

[Stable contracts](https://developer.brigg.app/developers/versioning) receive at least 30 days of notice before planned retirement. [The API changelog](https://developer.brigg.app/developers/changelog) lists changes and migration notices.

For agents and client generation, use the [Markdown index](https://developer.brigg.app/developers/llms.txt), [full Markdown reference](https://developer.brigg.app/developers/llms-full.txt), and [OpenAPI specification](https://developer.brigg.app/developers/openapi.json).