# National Grid ESO

**Canonical:** https://apis.io/providers/national-grid/  
**Website:** https://www.neso.energy/data-portal  
**APIs profiled:** 2

National Energy System Operator (NESO) provides open data APIs for the UK electricity system, including carbon intensity forecasts, demand data, generation mix, ancillary services, balancing costs, and operational data for Great Britain's electricity network. The Carbon Intensity API delivers 96+ hour ahead forecasts at both national and regional levels, while the NESO Data Portal (CKAN-based) exposes hundreds of datasets covering the full spectrum of electricity system operations.

## Kin Score — 28.1 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 28.1).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 28.2 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 23.7 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

Regulatory layer — **Energy & Utilities**: 21.6 (matched via tags).

## Agent readiness — 18.4 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Free · Open access — onboarding: open, pricing: free, trial: no (confidence: medium).

## APIs (2)

- **Carbon Intensity API** — Official Carbon Intensity forecast API for Great Britain, developed by NESO in partnership with EDF Europe, University of Oxford, and WWF. Provides 96+ hour ahead national and r...
- **NESO Data Portal API** — CKAN-based REST API providing programmatic access to hundreds of electricity system datasets published by the National Energy System Operator. Covers ancillary services, balanci...

## Security (2)

- **National Grid Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **National Grid Vulnerability Disclosure** — Hackerone · security.txt · contact published

## Plans (1)

- **Neso Data Portal Plans**

## Tags

Energy, Electricity, Carbon Intensity, UK, Open Data, Sustainability, Grid Operations

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/national-grid/). Scores are computed from the provider's own public artifacts under a published rubric.