Axle Energy
Axle Energy operates a virtual power plant (VPP) platform that connects distributed energy assets — electric vehicles, EV chargers, home batteries, and heat pumps — to electricity flexibility markets through a single unified API. Partners (carmakers, charger and battery OEMs, HVAC suppliers, and utilities) register sites and assets, prequalify and enrol them in flex propositions, stream telemetry and plug/charge events, and let end users monetise shiftable demand. The API covers authentication, meter lookup (MPAN), sites, assets, telemetry/readings, rewards/payouts, validation, and half-hourly price curves, with markets live across Great Britain, France, Germany, the Netherlands, Denmark and Sweden. React/hosted UI components and a documented outbound dispatch webhook round out the developer surface.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Axle Energy the way a machine reads it — 21 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Axle Energy scores 43.9/100 (developing), with a separate agent-readiness read of 34/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-10 · rubric v0.20.0
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How we profile Axle Energy
Each block below is one kind of artifact we hold for Axle Energy. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 8
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Axle Energy 1. Authentication API
Authenticate yourself with the Axle API
Axle Energy 2. Meters API
Find key info about your sites
Axle Energy 3. Sites API
Register your sites with Axle; configure market participation
Axle Energy 4. Assets API
Register your assets with Axle
Axle Energy 5. Data API
Send asset metrics to Axle, for analysis and optimisation purposes
Axle Energy 6. Rewards API
Determine how much your users have earned by participating with Axle; allow balance withdrawal
Axle Energy 7. Validation API
Validate structured data against Axle's rules
Axle Energy 8. Examples API
Get example data for testing
Scroll within the panel for all 8 ·
Open Collections 9
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONAxle 1. Authentication API
OPEN COLLECTIONAxle 1. Authentication 2. Meters API
OPEN COLLECTIONAxle 1. Authentication 3. Sites API
OPEN COLLECTIONAxle 1. Authentication 4. Assets API
OPEN COLLECTIONAxle 1. Authentication 5. Data API
OPEN COLLECTIONAxle 1. Authentication 6. Rewards API
OPEN COLLECTIONAxle 1. Authentication 7. Validation API
OPEN COLLECTIONAxle 1. Authentication 8. Examples API
OPEN COLLECTIONScroll within the panel for all 9 ·
Event Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Axle Energy Dispatch Webhooks
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Axle Energy — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 2
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 3
Pagination, idempotency, versioning, errors, and events
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/axle-energy · machine-readable index on apis.io
This is an independent, third-party profile of Axle Energy, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.