Smart DCC

Smart DCC (the Data Communications Company) is the Ofgem-licensed monopoly that operates Britain's national smart metering communications network, connecting electricity and gas smart meters in homes and businesses to energy suppliers, network operators and other authorised users over a single secure wide-area network. It sits in the middle of the United Kingdom energy value chain as shared infrastructure rather than as a retailer or a data marketplace, and it is regulated through the Smart Meter Communication Licence and governed by the Smart Energy Code. Its API posture reflects that position exactly. Britain mandated the infrastructure, not a consumer data right — there is no UK equivalent of the Australian Consumer Data Right for energy, so Smart DCC operates no consumer data-portability API and publishes no Green Button or Consumer Data Standards surface. The real production interface is the DCC User Interface Specification (DUIS), an XML web service reached over a DCC User Gateway Connection, plus the Self-Service Interface; the DUIS specification and its XML schema are published openly as Smart Energy Code subsidiary documents, but the gateway itself is closed to anyone who has not acceded to the Smart Energy Code and passed SMKI and User Entry Process Testing. The only self-serve, machine-readable contract Smart DCC publishes is an OpenAPI for the open-source DCC Boxed DUIS signing and validation tool on GitHub. Network statistics are shown on a public dashboard as a rendered web page with no documented open data API or bulk download, so both the consumer-data and market-data sides are effectively closed while the interface specification itself is open.

Smart DCC publishes 2 APIs on the APIs.io network: Sign API and Verify API. Tagged areas include Energy, United Kingdom, Utilities, Electricity, and Gas.

Smart DCC’s developer surface includes engineering blog, documentation, CLI, sandbox, changelog, support, pricing, and 35 more developer resources.

🌐 Visit website 📡 Source on GitHub

48.5/100 developing ▬ flat Agent 29/100 agent ready open core · GPL-3.0 Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessOpen

1 APIs

Energy United Kingdom Utilities Electricity Gas Smart Metering GridMetering InfrastructureEnergy Data

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 48.5/100 · developing

Contract Quality 9.1 / 19

Developer Ergonomics 7.8 / 15

Access Clarity 4.3 / 15

Operational Transparency 4.9 / 10

Contract Governance 2.0 / 9

Discoverability 5.0 / 8

Regulatory Posture 8.1 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/dcc-smart: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Smart DCC Sign API

The Sign API from Smart DCC — 1 operation(s) for sign.

Smart DCC Verify API

The Verify API from Smart DCC — 1 operation(s) for verify.

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

DCC Boxed DUIS Signing Tool API

OPEN COLLECTION

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Dcc Smart Dccboxed Keystore

0 properties

JSON SCHEMA

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Dcc Smart Authentication

0 schemes

SECURITY

Dcc Smart Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Dcc Smart Vulnerability Disclosure

Hackerone · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Dcc Smart Agentic Access

2 operations · 2 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Onboarding

Onboarding

Sandbox

Sandbox

Documentation 6

Reference material describing how the API behaves

Documentation

Specification

Specification

Specification

Schema

JSONSchema

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

X-MCPServerCandidate

AgenticAccess

WellKnown

LLMsTxt

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Components

Conformance

Lifecycle

Vocabulary

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Compliance

Compliance

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 7

Status, limits, changes, and where to get help

IssueTracker

Contact

StatusPage

ChangeLog

ChangeLog

Roadmap

Support

Scroll for all 7

Commercial 3

Pricing, plans, and the legal terms of use

License

License

PrivacyPolicy

PrivacyPolicy

Pricing

Pricing

Company 3

The organization behind the API

Website

Website

About

About

Blog

Blog

Other 4

Properties that don't map to a standard resource type

Overlay

Dashboard

Products

Regulation

Source (apis.yml)

aid: dcc-smart
url: https://raw.githubusercontent.com/api-evangelist/dcc-smart/refs/heads/main/apis.yml
name: Smart DCC
kind: company
description: Smart DCC (the Data Communications Company) is the Ofgem-licensed monopoly that operates Britain's national smart
  metering communications network, connecting electricity and gas smart meters in homes and businesses to energy suppliers,
  network operators and other authorised users over a single secure wide-area network. It sits in the middle of the United
  Kingdom energy value chain as shared infrastructure rather than as a retailer or a data marketplace, and it is regulated
  through the Smart Meter Communication Licence and governed by the Smart Energy Code. Its API posture reflects that position
  exactly. Britain mandated the infrastructure, not a consumer data right — there is no UK equivalent of the Australian Consumer
  Data Right for energy, so Smart DCC operates no consumer data-portability API and publishes no Green Button or Consumer
  Data Standards surface. The real production interface is the DCC User Interface Specification (DUIS), an XML web service
  reached over a DCC User Gateway Connection, plus the Self-Service Interface; the DUIS specification and its XML schema are
  published openly as Smart Energy Code subsidiary documents, but the gateway itself is closed to anyone who has not acceded
  to the Smart Energy Code and passed SMKI and User Entry Process Testing. The only self-serve, machine-readable contract
  Smart DCC publishes is an OpenAPI for the open-source DCC Boxed DUIS signing and validation tool on GitHub. Network statistics
  are shown on a public dashboard as a rendered web page with no documented open data API or bulk download, so both the consumer-data
  and market-data sides are effectively closed while the interface specification itself is open.
deliveryModel:
  model: open-core
  license: GPL-3.0
  open_source: true
  commercial: true
  callable_host: false
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: false
  label: Open access
  confidence: medium
  try_now_blocked_by: loopback
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-09-02'
  method: derived
image: https://www.smartdcc.co.uk/assets/images/favicon.ico
tags:
- Energy
- United Kingdom
- Utilities
- Electricity
- Gas
- Smart Metering
- Grid
- Metering Infrastructure
- Energy Data
created: '2026-07-27'
modified: '2026-07-27'
specificationVersion: '0.23'
apis:
- aid: dcc-smart:dcc-smart-sign-api
  name: Smart DCC Sign API
  description: The Sign API from Smart DCC — 1 operation(s) for sign.
  humanURL: https://github.com/SmartDCCInnovation/dccboxed-signing-tool
  baseURL: http://localhost:8080
  tags:
  - Sign
  properties:
  - type: OpenAPI
    url: openapi/dcc-smart-sign-api-openapi.yml
  - type: Documentation
    url: https://github.com/SmartDCCInnovation/dccboxed-signing-tool
  - type: SourceCode
    url: https://github.com/SmartDCCInnovation/dccboxed-signing-tool
  - type: Specification
    url: https://smartenergycodecompany.co.uk/documents/sec-subsidiary-documents/sec-appendix-ad-dcc-user-interface-specification-duis/
  - type: Authentication
    url: authentication/dcc-smart-authentication.yml
  - type: Conventions
    url: conventions/dcc-smart-conventions.yml
  - type: ErrorCatalog
    url: errors/dcc-smart-problem-types.yml
  - type: DataModel
    url: data-model/dcc-smart-data-model.yml
- aid: dcc-smart:dcc-smart-verify-api
  name: Smart DCC Verify API
  description: The Verify API from Smart DCC — 1 operation(s) for verify.
  humanURL: https://github.com/SmartDCCInnovation/dccboxed-signing-tool
  baseURL: http://localhost:8080
  tags:
  - Verify
  properties:
  - type: OpenAPI
    url: openapi/dcc-smart-verify-api-openapi.yml
  - type: Documentation
    url: https://github.com/SmartDCCInnovation/dccboxed-signing-tool
  - type: SourceCode
    url: https://github.com/SmartDCCInnovation/dccboxed-signing-tool
  - type: Specification
    url: https://smartenergycodecompany.co.uk/documents/sec-subsidiary-documents/sec-appendix-ad-dcc-user-interface-specification-duis/
  - type: Authentication
    url: authentication/dcc-smart-authentication.yml
  - type: Conventions
    url: conventions/dcc-smart-conventions.yml
  - type: ErrorCatalog
    url: errors/dcc-smart-problem-types.yml
  - type: DataModel
    url: data-model/dcc-smart-data-model.yml
common:
- type: Overlay
  url: overlays/dcc-smart-dcc-boxed-duis-signing-tool-overlay.yaml
- type: AgentSkill
  url: skills/_index.yml
- type: X-MCPServerCandidate
  url: mcp/dcc-smart-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: IssueTracker
  url: https://github.com/SmartDCCInnovation/dccboxed-signing-tool/issues
- type: License
  name: GPL-3.0
  url: https://github.com/SmartDCCInnovation/dccboxed-signing-tool/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/dcc-smart-agentic-access.yml
- type: DomainSecurity
  url: security/dcc-smart-domain-security.yml
- type: Website
  url: https://www.smartdcc.co.uk/
- type: About
  url: https://www.smartdcc.co.uk/about-dcc/
- type: Contact
  url: https://www.smartdcc.co.uk/contact-us/
- type: Blog
  url: https://www.smartdcc.co.uk/news-events/
- type: GitHubOrganization
  url: https://github.com/SmartDCCInnovation
- type: Documentation
  url: https://www.smartdcc.co.uk/document-centre/
- type: Onboarding
  url: https://www.smartdcc.co.uk/partner-with-the-dcc/
- type: Specification
  url: https://www.smartdcc.co.uk/media/d5kh4khf/dcc-user-interface-specification-v53-18-mar-2025.pdf
- type: Specification
  url: https://smartenergycodecompany.co.uk/documents/sec-subsidiary-documents/sec-appendix-ad-dcc-user-interface-specification-duis/
- type: Specification
  url: https://smartenergycodecompany.co.uk/documents/sec-subsidiary-documents/sec-appendix-ae-dcc-user-interface-code-of-connection/
- type: Schema
  url: https://www.smartdcc.co.uk/media/6490/duis-xml-schema-v51.docx
- type: Dashboard
  url: https://www.smartdcc.co.uk/our-smart-network/network-data-dashboard/
- type: Products
  url: https://www.smartdcc.co.uk/our-smart-network/network-products-services/dcc-boxed/
- type: Regulation
  url: https://smartenergycodecompany.co.uk/the-smart-energy-code/
- type: Packages
  url: packages/dcc-smart-packages.yml
- type: SDKs
  url: packages/dcc-smart-packages.yml
- type: CLI
  url: cli/dcc-smart-cli.yml
- type: Components
  url: components/dcc-smart-components.yml
- type: Sandbox
  url: sandbox/dcc-smart-sandbox.yml
- type: Conformance
  url: conformance/dcc-smart-conformance.yml
- type: Compliance
  url: https://www.smartdcc.co.uk/about-dcc/governance-regulations/governance-reports-policies/
- type: Lifecycle
  url: lifecycle/dcc-smart-lifecycle.yml
- type: StatusPage
  url: https://www.smartdcc.co.uk/our-smart-network/network-data-dashboard/performance/
- type: ChangeLog
  url: changelog/dcc-smart-changelog.yml
- type: ChangeLog
  url: https://github.com/SmartDCCInnovation/dccboxed-signing-tool/releases
- type: Roadmap
  url: https://www.smartdcc.co.uk/our-smart-network/network-updates/
- type: VulnerabilityDisclosure
  url: security/dcc-smart-vulnerability-disclosure.yml
- type: Security
  url: https://www.smartdcc.co.uk/media/sn5dn4hr/information-security-policy-3.pdf
- type: WellKnown
  url: well-known/dcc-smart-well-known.yml
- type: LLMsTxt
  url: llms/dcc-smart-llms.txt
- type: Vocabulary
  url: vocabulary/dcc-smart-vocabulary.yml
- type: JSONSchema
  url: json-schema/dcc-smart-dccboxed-keystore-schema.json
- type: Support
  url: https://www.smartdcc.co.uk/contact-us-service-users/
- type: PrivacyPolicy
  url: https://www.smartdcc.co.uk/privacy-notice/
- type: Pricing
  url: https://www.smartdcc.co.uk/about-dcc/governance-regulations/charges/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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