# Cernion MaStR Monitor API

**Canonical:** https://apis.io/apis/cernion-de/cernion-de-mastr-monitor-api/  
**Provider:** Cernion — https://apis.io/providers/cernion-de/  
**Base URL:** https://api.cernion.de  
**Documentation:** https://api.cernion.de/api/docs

Cernion MaStR Monitor API is one of 144 APIs that [Cernion](https://apis.io/providers/cernion-de/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include MaStR Monitor. The published artifact set on APIs.io includes an OpenAPI specification.

MaStR installation change monitoring with field-level delta detection and email notifications (v0.27). Watches track changes to MaStR installations based on saved queries with configurable schedules.

## Operations (12)

| Method | Path | Summary |
|---|---|---|
| POST | `/api/mastr-monitor/watches` | Create MaStR monitor watch |
| GET | `/api/mastr-monitor/watches` | List MaStR monitor watches |
| GET | `/api/mastr-monitor/watches/:watchId` | Get MaStR monitor watch |
| DELETE | `/api/mastr-monitor/watches/:watchId` | Delete MaStR monitor watch and all linked objects |
| POST | `/api/mastr-monitor/watches/:watchId/run` | Run watch now |
| GET | `/api/mastr-monitor/watches/:watchId/deltas` | Get delta history for watch |
| GET | `/api/mastr-monitor/watches/:watchId/deltas/:deltaId` | Get one delta by ID |
| GET | `/api/mastr-monitor/watches/:watchId/snapshot` | Get latest snapshot in JSON or CSV |
| POST | `/api/mastr-monitor/watches/:watchId/subscribe` | Create subscription for watch |
| DELETE | `/api/mastr-monitor/watches/:watchId/subscribe/:token` | Unsubscribe token |
| GET | `/api/mastr-monitor/confirm/:token` | Confirm email subscription by token |
| POST | `/api/mastr-monitor/from-session` | Create watch from Live-CSV session (stub) |

## Machine-readable artifacts (1)

- **OpenAPI** — https://artifacts.apis.io/cernion-de/openapi/cernion-de-mastr-monitor-api-openapi.yml

## Other Cernion APIs (12)

- [Cernion Actor Personas API](https://apis.io/apis/cernion-de/cernion-de-actor-personas-api/)
- [Cernion Agent Manifest API](https://apis.io/apis/cernion-de/cernion-de-agent-manifest-api/)
- [Cernion Agent Receipts API](https://apis.io/apis/cernion-de/cernion-de-agent-receipts-api/)
- [Cernion Agent Sidecar API](https://apis.io/apis/cernion-de/cernion-de-agent-sidecar-api/)
- [Cernion Agnes Bottleneck API](https://apis.io/apis/cernion-de/cernion-de-agnes-bottleneck-api/)
- [Cernion AI Agent API](https://apis.io/apis/cernion-de/cernion-de-ai-agent-api/)
- [Cernion Altdaten Assessment API](https://apis.io/apis/cernion-de/cernion-de-altdaten-assessment-api/)
- [Cernion Analytics API](https://apis.io/apis/cernion-de/cernion-de-analytics-api/)
- [Cernion Assets API](https://apis.io/apis/cernion-de/cernion-de-assets-api/)
- [Cernion Authentication API](https://apis.io/apis/cernion-de/cernion-de-authentication-api/)
- [Cernion Automatisierungsradar API](https://apis.io/apis/cernion-de/cernion-de-automatisierungsradar-api/)
- [Cernion Battery Redispatch Special Gate API](https://apis.io/apis/cernion-de/cernion-de-battery-redispatch-special-gate-api/)

## Tags

MaStR Monitor

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/cernion-de/cernion-de-mastr-monitor-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/cernion-de/.