n3rgy
n3rgy data limited is a United Kingdom smart-energy data platform, registered in England (No. 11712674) and owned by Smart Metering Systems Ltd. It sits between Great Britain's mandated smart-metering infrastructure — the DCC network, SMETS2 home area networks (HANs), and the ESME/GSME electricity and gas meters behind them — and the organisations that want to read from it, letting a business collect consumption, production, and tariff data for a property (addressed by MPAN/MPRN, collectively MPxN) once the occupant has granted consent, without that business having to become a DCC user in its own right. Its API posture is public in documentation and closed in access: a genuinely anonymous MkDocs developer guide and a complete OpenAPI 3.0.1 contract for the Customer Service API V2 are served to anyone, while every operation is x-api-key gated and live keys must be enabled by the n3rgy back office after a business sign-up. Britain mandated the metering infrastructure, not a consumer data right, so nothing here is a Consumer Data Right or Green Button implementation — n3rgy publishes no open grid or market data at all, and the formerly public consumer API is, by the company's own statement, no longer available.
n3rgy publishes 13 APIs on the APIs.io network, including Create Export Profiles API, Customer Service API V2 API, Find Mpxn API, and 10 more. Tagged areas include Energy, United Kingdom, Utilities, Smart Metering, and Electricity.
The n3rgy catalog on APIs.io includes 1 event-driven AsyncAPI specification.
n3rgy’s developer surface includes authentication, documentation, signup flow, developer portal, pricing, support, changelog, and 19 more developer resources.
What this lets a business do 1
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
APIs 13
Individual APIs this provider publishes, each with its own machine-readable definition.
n3rgy Create Export Profiles API
The Create Export Profiles API from n3rgy — 1 operation(s) for create export profiles.
n3rgy Customer Service API V2 API
The Customer Service API V2 API from n3rgy — 1 operation(s) for customer service api v2.
n3rgy Find Mpxn API
The Find Mpxn API from n3rgy — 2 operation(s) for find mpxn.
n3rgy Get Update Frequencies API
The Get Update Frequencies API from n3rgy — 1 operation(s) for get update frequencies.
n3rgy Internal API
The Internal API from n3rgy — 1 operation(s) for internal.
n3rgy Mpxn API
The Mpxn API from n3rgy — 3 operation(s) for mpxn.
n3rgy Push API
The Push API from n3rgy — 2 operation(s) for push.
n3rgy Read Inventory API
The Read Inventory API from n3rgy — 1 operation(s) for read inventory.
n3rgy Reset All Update Frequencies API
The Reset All Update Frequencies API from n3rgy — 1 operation(s) for reset all update frequencies.
n3rgy Set Defaults API
The Set Defaults API from n3rgy — 1 operation(s) for set defaults.
n3rgy Set Meter Update Frequency API
The Set Meter Update Frequency API from n3rgy — 1 operation(s) for set meter update frequency.
n3rgy Update Now API
The Update Now API from n3rgy — 1 operation(s) for update now.
n3rgy Upload API
The Upload API from n3rgy — 4 operation(s) for upload.
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Rate Limits 1
Documented rate limits and quota policies.
N3Rgy Rate Limits
RATE LIMITSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Examples 7
Example request and response payloads for these APIs.
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Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 4
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 2
Pagination, idempotency, versioning, errors, and events
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 2
Properties that don't map to a standard resource type
Source (apis.yml)
Work with this as data
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