# ETSI NGSI-LD API (ISG CIM)

**Canonical:** https://apis.io/apis/etsi/ngsi-ld/  
**Provider:** ETSI — https://apis.io/providers/etsi/  
**Documentation:** https://forge.etsi.org/rep/cim/ngsi-ld-openapi

ETSI NGSI-LD API (ISG CIM) is one of 24 APIs that [ETSI](https://apis.io/providers/etsi/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Context Information, NGSI-LD, Smart Cities, IoT, and JSON-LD. The published artifact set on APIs.io includes API documentation, an API reference, and an OpenAPI specification.

The NGSI-LD API standardised by ETSI ISG CIM in GS CIM 009, a JSON-LD context information management API for entities, attributes, relationships, subscriptions, temporal queries, entity types, context source registration and distributed federation. It is the API layer beneath most European smart-city and FIWARE deployments and is published as OpenAPI 3.0.3 and 3.1.0.

## Machine-readable artifacts (7)

- **Documentation** — https://www.etsi.org/technologies/context-information-management
- **APIReference** — https://forge.etsi.org/rep/cim/ngsi-ld-openapi
- **Repository** — https://forge.etsi.org/rep/cim/ngsi-ld-openapi
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/etsi/refs/heads/main/openapi/ngsi-ld/ngsi-ld-api-3.0.3.yaml
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/etsi/refs/heads/main/openapi/ngsi-ld/ngsi-ld-api-3.1.0.yaml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/etsi/refs/heads/main/overlays/etsi-ngsi-ld-overlay.yaml
- **AgentSkill** — https://raw.githubusercontent.com/api-evangelist/etsi/refs/heads/main/skills/etsi-ngsi-ld-manage-context-entities.md

## Other ETSI APIs (12)

- [ETSI MEC 011 Edge Platform Application Enablement API](https://apis.io/apis/etsi/mec-011-edge-platform-application-enablement/)
- [ETSI MEC 012 Radio Network Information API](https://apis.io/apis/etsi/mec-012-radio-network-information/)
- [ETSI MEC 013 Location API](https://apis.io/apis/etsi/mec-013-location/)
- [ETSI MEC 014 UE Identity API](https://apis.io/apis/etsi/mec-014-ue-identity/)
- [ETSI MEC 015 Traffic Management APIs](https://apis.io/apis/etsi/mec-015-traffic-management/)
- [ETSI MEC 016 UE Application Interface API](https://apis.io/apis/etsi/mec-016-ue-application-interface/)
- [ETSI MEC 010-2 Application Package and Lifecycle Management APIs](https://apis.io/apis/etsi/mec-010-2-application-lifecycle-management/)
- [ETSI MEC 021 Application Mobility Service API](https://apis.io/apis/etsi/mec-021-application-mobility/)
- [ETSI MEC 028 WLAN Information API](https://apis.io/apis/etsi/mec-028-wlan-information/)
- [ETSI MEC 029 Fixed Access Information API](https://apis.io/apis/etsi/mec-029-fixed-access-information/)
- [ETSI MEC 030 V2X Information Services API](https://apis.io/apis/etsi/mec-030-v2x-information-services/)
- [ETSI MEC 033 IoT API](https://apis.io/apis/etsi/mec-033-iot/)

## Tags

Context Information, NGSI-LD, Smart Cities, IoT, JSON-LD

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