# NGED Connected Data Portal API

**Canonical:** https://apis.io/apis/national-grid-electricity-distribution/nged-connected-data-api/  
**Provider:** National Grid Electricity Distribution — https://apis.io/providers/national-grid-electricity-distribution/  
**Base URL:** https://connecteddata.nationalgrid.co.uk/api/3/action/  
**Documentation:** https://connecteddata.nationalgrid.co.uk/api-guidance

NGED Connected Data Portal API is one of 2 APIs that [National Grid Electricity Distribution](https://apis.io/providers/national-grid-electricity-distribution/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Open Data, Electricity, Distribution Network, Grid, and Smart Metering. The published artifact set on APIs.io includes API documentation, an API reference, authentication docs, a getting-started guide, and a support channel.

The public CKAN 2.9.8 Action API behind National Grid Electricity Distribution's Connected Data Portal, documented by NGED on its own API Guidance page. Exposes the DNO's open data catalogue — 91 datasets, 8,687 resources, 155 tags and 6 data groups (connection, demand, flexibility, innovation, system-and-network, system-planning) — covering live power cuts, live primary and secondary substation measurements, LV load monitoring, the Embedded Capacity Register, the generation capacity register, distribution substation data and the Ofgem-mandated aggregated smart meter consumption data. Catalogue-level calls (package_list, package_search, package_show, group_list, group_show, tag_list, status_show) return 200 anonymously. Resource-level calls (resource_show, datastore_search) and the majority of resource download URLs are gated behind a free API token, returning "Access denied: Resource access restricted to registered users".

## Machine-readable artifacts (16)

- **Documentation** — https://connecteddata.nationalgrid.co.uk/api-guidance
- **APIReference** — https://docs.ckan.org/en/latest/api/index.html
- **Portal** — https://connecteddata.nationalgrid.co.uk/
- **Datasets** — https://connecteddata.nationalgrid.co.uk/dataset/
- **Authentication** — https://connecteddata.nationalgrid.co.uk/api-guidance
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/national-grid-electricity-distribution/refs/heads/main/authentication/national-grid-electricity-distribution-authentication.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/national-grid-electricity-distribution/refs/heads/main/conventions/national-grid-electricity-distribution-conventions.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/national-grid-electricity-distribution/refs/heads/main/errors/national-grid-electricity-distribution-problem-types.yml
- **DataModel** — https://raw.githubusercontent.com/api-evangelist/national-grid-electricity-distribution/refs/heads/main/data-model/national-grid-electricity-distribution-data-model.yml
- **MCPServer** — https://raw.githubusercontent.com/api-evangelist/national-grid-electricity-distribution/refs/heads/main/mcp/national-grid-electricity-distribution-mcp.yml
- **SignUp** — https://connecteddata.nationalgrid.co.uk/user/register
- **GettingStarted** — https://connecteddata.nationalgrid.co.uk/registration-and-subscription
- **Documentation** — https://connecteddata.nationalgrid.co.uk/registration-and-subscription
- **License** — https://www.nationalgrid.co.uk/open-data-licence
- **Support** — https://connecteddata.nationalgrid.co.uk/contact
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/national-grid-electricity-distribution/refs/heads/main/apis.yml

## Other National Grid Electricity Distribution APIs (1)

- [NGED Connected Data DCAT Catalogue](https://apis.io/apis/national-grid-electricity-distribution/nged-connected-data-catalogue/)

## Tags

Open Data, Electricity, Distribution Network, Grid, Smart Metering, Flexibility, CKAN

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/national-grid-electricity-distribution/nged-connected-data-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/national-grid-electricity-distribution/.