# OMN API Documentation

> Developer documentation for the OMN (Online Media Net) REST APIs by apollon
> GmbH+Co. KG: Core API (PIM, DAM, CM, PEO, Common), Workflow API and Search API.
> Guides are available as plain Markdown; API definitions as OpenAPI YAML/JSON.

## Guides (latest)

- [Getting Started](api/latest/getting-started.md): first API request, prerequisites, API overview
- [Authentication](api/latest/authentication.md): OAuth 2.0 / OIDC tokens via Keycloak, access and offline tokens
- [REST API Usage](api/latest/rest-api-usage.md): URI schema, HTTP methods, OMN operations, bulk processing
- [Error Handling](api/latest/error-handling.md): status codes and error response format

## API Specifications (latest)

- [Core API – PIM OpenAPI spec](specs/latest/omn-core-api-pim.yaml)
- [Core API – DAM OpenAPI spec](specs/latest/omn-core-api-dam.yaml)
- [Core API – Common OpenAPI spec](specs/latest/omn-core-api-common.yaml)
- [Core API – CM OpenAPI spec](specs/latest/omn-core-api-cm.yaml)
- [Core API – PEO OpenAPI spec](specs/latest/omn-core-api-peo.yaml)
- [Workflow API OpenAPI spec](specs/latest/omn-workflow-api.yaml)
- [Search API OpenAPI spec](specs/latest/omn-search-api.yaml)
- [Core API merged OpenAPI spec](specs/latest/core-api-openapi.yaml)