Hildebrand Technology Limited is a London-based energy data company and, since 2019, the United Kingdom's first independent DCC Other User with a direct connection to the Smart Data Communications Company network. It sits between Britain's mandated smart-metering infrastructure and the applications built on top of it: it makes Glow hardware (CADs, in-home displays, sub-meters, temperature sensors), ingests and stores smart-meter reads at scale, and republishes them through the Glowmarkt Platform APIs, the consumer Bright app, and the commercial Glow Data Service. Its API posture is an honest reflection of the British market seam — Britain mandated the metering INFRASTRUCTURE, not a consumer data right, so there is no Consumer Data Right or Green Button obligation on Hildebrand and no standards-conformant data-sharing surface to point at. What exists instead is a proprietary but genuinely well-documented platform: five public Swagger 2.0 definitions are served anonymously from api.glowmarkt.com/api-docs, and any individual who installs Bright, creates an account and passes meter-point verification can call the same production API for their own household data with a published applicationId. Third-party organisational access to other people's data is the closed half — it runs through Glow Data Service on a signed contract from GBP 595/month per MPxN, with consumer verification and consent captured per meter point. Hildebrand publishes no open grid or market data of any kind: every documented endpoint returns HTTP 400 without an applicationId header, so this is a closed-market-data, consent-gated-consumer-data provider.
Hildebrand publishes 5 APIs on the APIs.io network, including Glowmarkt User System API, Glowmarkt Resource System API, Glowmarkt Virtual Entity System API, and 2 more. Tagged areas include Energy, United Kingdom, Utilities, Electricity, and Gas.
The Hildebrand catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Hildebrand’s developer surface includes getting-started guide, engineering blog, authentication, documentation, API reference, signup flow, pricing, and 21 more developer resources.
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.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
User, account, authentication and consent management for the Glow Platform. Covers user registration, account profiles and sessions, JWT issuance via POST /auth, an OAuth 2.0 au...
Time-series energy data retrieval. A resource is a single data stream — electricity consumption, electricity cost, gas consumption, gas cost, electricity export, reactive import...
CRUD over Virtual Entities — the Glow Platform's model of a physical "thing" such as a home or a site, made up of metadata and a collection of resources. Lists the virtual entit...
Registration and status of the physical hardware feeding the platform — gateways such as the Glow CAD and GlowStick, sensors such as smart electricity meters, and actuators such...
Alerting and messaging for Glow-based applications. Defines alert types, manages per-channel and per-culture message templates, sends alerts to users, and reports notification d...
aid: hildebrand
url: https://raw.githubusercontent.com/api-evangelist/hildebrand/refs/heads/main/apis.yml
name: Hildebrand
kind: company
description: 'Hildebrand Technology Limited is a London-based energy data company and, since 2019, the United Kingdom''s first
independent DCC Other User with a direct connection to the Smart Data Communications Company network. It sits between Britain''s
mandated smart-metering infrastructure and the applications built on top of it: it makes Glow hardware (CADs, in-home displays,
sub-meters, temperature sensors), ingests and stores smart-meter reads at scale, and republishes them through the Glowmarkt
Platform APIs, the consumer Bright app, and the commercial Glow Data Service. Its API posture is an honest reflection of
the British market seam — Britain mandated the metering INFRASTRUCTURE, not a consumer data right, so there is no Consumer
Data Right or Green Button obligation on Hildebrand and no standards-conformant data-sharing surface to point at. What exists
instead is a proprietary but genuinely well-documented platform: five public Swagger 2.0 definitions are served anonymously
from api.glowmarkt.com/api-docs, and any individual who installs Bright, creates an account and passes meter-point verification
can call the same production API for their own household data with a published applicationId. Third-party organisational
access to other people''s data is the closed half — it runs through Glow Data Service on a signed contract from GBP 595/month
per MPxN, with consumer verification and consent captured per meter point. Hildebrand publishes no open grid or market data
of any kind: every documented endpoint returns HTTP 400 without an applicationId header, so this is a closed-market-data,
consent-gated-consumer-data provider.'
accessModel:
pricing: paid
onboarding: request
trial: false
try_now: false
public: false
label: Paid · Contract required for organisational access; free self-serve for your own meter data via Bright
confidence: high
source:
- https://data.glowforindustry.com/
- https://docs.glowmarkt.com/GlowmarktAPIDataRetrievalDocumentationIndividualUserForBright.pdf
generated: '2026-07-27'
method: manual
image: https://www.hildebrand.co.uk/images/favicon.ico
tags:
- Energy
- United Kingdom
- Utilities
- Electricity
- Gas
- Smart Metering
- Energy Data
- Demand Response
- IoT
- Metering
created: '2026-07-27'
modified: '2026-07-27'
specificationVersion: '0.23'
apis:
- aid: hildebrand:glowmarkt-user-system-api
name: Glowmarkt User System API
description: User, account, authentication and consent management for the Glow Platform. Covers user registration, account
profiles and sessions, JWT issuance via POST /auth, an OAuth 2.0 authorization-code grant (POST /auth/oauth and POST /auth/oauth/access),
and — the part that matters most in the British smart-metering context — Meter Point Consent and Verification, where consent
to retrieve data is renewed and revoked per MPxN.
humanURL: https://api.glowmarkt.com/api-docs/v0-1/usersys/usertypes/
baseURL: https://api.glowmarkt.com/api/v0-1
tags:
- User
- Account
- Authentication
- Consent
- Meter Points
tags_raw:
- Users
- Accounts
- Authentication
- OAuth
- Consent
- Meter Points
properties:
- type: OpenAPI
url: openapi/hildebrand-glowmarkt-user-system-swagger.json
- type: Overlay
url: overlays/hildebrand-glowmarkt-user-system-overlay.yaml
- type: APIReference
url: https://api.glowmarkt.com/api-docs/v0-1/usersys/usertypes/
- type: Documentation
url: https://docs.glowmarkt.com/GlowmarktAPIDataRetrievalDocumentationIndividualUserForBright.pdf
- aid: hildebrand:glowmarkt-resource-system-api
name: Glowmarkt Resource System API
description: Time-series energy data retrieval. A resource is a single data stream — electricity consumption, electricity
cost, gas consumption, gas cost, electricity export, reactive import/export — each carrying a classifier such as electricity.consumption
or gas.consumption.cost. Exposes historical readings with ISO 8601 aggregation periods (PT1M through P1Y), current readings,
first/last reading times, cumulative meter reads, the tariff applied to a cost resource and its history, a DCC catchup
trigger, a DCC daily consumption log, and raw data in Hildebrand's Glow Binary format.
humanURL: https://api.glowmarkt.com/api-docs/v0-1/resourcesys/
baseURL: https://api.glowmarkt.com/api/v0-1
tags:
- Energy Data
- Consumption
- Tariffs
- Time Series
- Smart Metering
- DCC
properties:
- type: OpenAPI
url: openapi/hildebrand-glowmarkt-resource-system-swagger.json
- type: Overlay
url: overlays/hildebrand-glowmarkt-resource-system-overlay.yaml
- type: APIReference
url: https://api.glowmarkt.com/api-docs/v0-1/resourcesys/
- type: Documentation
url: https://docs.glowmarkt.com/GlowmarktAPIDataRetrievalDocumentationIndividualUserForBright.pdf
- aid: hildebrand:glowmarkt-virtual-entity-system-api
name: Glowmarkt Virtual Entity System API
description: CRUD over Virtual Entities — the Glow Platform's model of a physical "thing" such as a home or a site, made
up of metadata and a collection of resources. Lists the virtual entities a caller has access to, resolves the resources
belonging to each, manages virtual entity types and metadata attributes, and reports per-application virtual entity statistics.
humanURL: https://api.glowmarkt.com/api-docs/v0-1/vesys/
baseURL: https://api.glowmarkt.com/api/v0-1
tags:
- Virtual Entities
- Sites
- Metadata
- Energy Data
properties:
- type: OpenAPI
url: openapi/hildebrand-glowmarkt-virtual-entity-system-swagger.json
- type: Overlay
url: overlays/hildebrand-glowmarkt-virtual-entity-system-overlay.yaml
- type: APIReference
url: https://api.glowmarkt.com/api-docs/v0-1/vesys/
- type: Documentation
url: https://docs.glowmarkt.com/GlowmarktAPIDataRetrievalDocumentationIndividualUserForBright.pdf
- aid: hildebrand:glowmarkt-device-management-system-api
name: Glowmarkt Device Management System API
description: Registration and status of the physical hardware feeding the platform — gateways such as the Glow CAD and GlowStick,
sensors such as smart electricity meters, and actuators such as auxiliary load control switches. Also exposes the DCC
inventory of a meter point by MPxN or by smart-meter EUI, the resources associated to a meter point, and gateway packet-delivery
status.
humanURL: https://api.glowmarkt.com/api-docs/v0-1/dmssys/
baseURL: https://api.glowmarkt.com/api/v0-1
tags:
- Devices
- Hardware
- Gateways
- Smart Metering
- DCC
- IoT
properties:
- type: OpenAPI
url: openapi/hildebrand-glowmarkt-device-management-system-swagger.json
- type: Overlay
url: overlays/hildebrand-glowmarkt-device-management-system-overlay.yaml
- type: APIReference
url: https://api.glowmarkt.com/api-docs/v0-1/dmssys/
- aid: hildebrand:glowmarkt-notification-system-api
name: Glowmarkt Notification System API
description: Alerting and messaging for Glow-based applications. Defines alert types, manages per-channel and per-culture
message templates, sends alerts to users, and reports notification delivery and logs. Served from its own base path, /api/v0-1/ns.
humanURL: https://api.glowmarkt.com/api-docs/v0-1/notificationsys/
baseURL: https://api.glowmarkt.com/api/v0-1/ns
tags:
- Notification
- Alerts
- Templates
- Messaging
tags_raw:
- Notifications
- Alerts
- Templates
- Messaging
properties:
- type: OpenAPI
url: openapi/hildebrand-glowmarkt-notification-system-swagger.json
- type: Overlay
url: overlays/hildebrand-glowmarkt-notification-system-overlay.yaml
- type: APIReference
url: https://api.glowmarkt.com/api-docs/v0-1/notificationsys/
common:
- type: GettingStarted
url: https://docs.glowmarkt.com/GlowmarktAPIDataRetrievalDocumentationIndividualUserForBright.pdf
- type: Blog
url: https://data.glowforindustry.com/articles
- type: GitHubOrganization
url: https://github.com/HildebrandTechnology
- type: Compliance
url: https://www.hildebrand.co.uk/about
- type: Conformance
url: conformance/hildebrand-conformance.yml
- type: Conventions
url: conventions/hildebrand-conventions.yml
- type: ErrorCatalog
url: errors/hildebrand-problem-types.yml
- type: Lifecycle
url: lifecycle/hildebrand-lifecycle.yml
- type: DataModel
url: data-model/hildebrand-data-model.yml
- type: Packages
url: packages/hildebrand-packages.yml
- type: Plans
url: plans/hildebrand-plans.yml
- type: MCPServer
url: mcp/hildebrand-mcp.yml
- type: LLMsTxt
url: llms/hildebrand-llms.txt
- type: AgentSkill
url: skills/_index.yml
- type: Webhooks
url: asyncapi/hildebrand-event-surface.yml
- type: AgenticAccess
url: agentic-access/hildebrand-agentic-access.yml
- type: DomainSecurity
url: security/hildebrand-domain-security.yml
- type: Authentication
url: authentication/hildebrand-authentication.yml
- type: Website
url: https://www.hildebrand.co.uk/
- type: Documentation
url: https://api.glowmarkt.com/api-docs/v0-1/resourcesys/
- type: APIReference
url: https://api.glowmarkt.com/api-docs/v0-1/usersys/usertypes/
- type: SignUp
url: https://data.glowforindustry.com/signup
- type: Pricing
url: https://data.glowforindustry.com/#pricing
- type: Support
url: https://www.hildebrand.co.uk/contact-us
- type: Forum
url: https://forum.glowmarkt.com/
- type: LinkedIn
url: https://www.linkedin.com/company/hildebrand/
- type: PrivacyPolicy
url: https://www.hildebrand.co.uk/privacy-policy
- type: Review
url: review.yml
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
Kin Score
How this is scored →