Ostrom website screenshot

Ostrom

Ostrom is a fully digital green-energy provider based in Berlin, Germany, offering variable, fixed, and dynamic electricity tariffs managed entirely through a mobile app, with smart-meter integration, device control, EV-charging optimization, and a NeoGrid virtual power plant. Its developer API lets Ostrom customers and partners integrate with the smart energy-management platform: OAuth2-secured REST endpoints for user data, orders, contracts, smart-meter energy consumption, day-ahead EEX spot prices, product pricing, and partner webhooks.

Ostrom publishes 7 APIs on the APIs.io network, including Auth API, Contracts API, Orders API, and 4 more. Tagged areas include Company, Energy, Electricity, Green Energy, and Smart Meter.

The Ostrom catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Ostrom’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 20 more developer resources.

51.5/100 developing ▬ flat Agent 39/100 agent ready Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessSelf serve
7 APIs 1 MCP Servers
CompanyEnergyElectricityGreen EnergySmart MeterDynamic PricingGermanySustainabilityWebhook

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 51.5/100 · developing
Contract Quality 13.5 / 21
Developer Ergonomics 8.8 / 17
Access Clarity 7.6 / 17
Operational Transparency 2.6 / 11
Contract Governance 1.7 / 10
Discoverability 6.9 / 9
Regulatory Posture 6.1 / 15
Agent readiness — 39/100 · 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 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 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
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/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/ostrom: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 7

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

Ostrom Auth API

Describe how to authenticate in the api

Ostrom Contracts API

Describe how to fetch information related with contracts

Ostrom Orders API

Describe how to fetch information related with orders

Ostrom Prices API

Describe how to fetch information related with prices

Ostrom Products API

Describe how to fetch information related with products

Ostrom Users API

Describe how to fetch information related with users

Ostrom Webhooks API

Describe how to create webhooks and receive notifications from our system.

Scroll for all 7

Open Collections 8

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

API Collection

OPEN COLLECTION

Ostrom Auth API

OPEN COLLECTION

Ostrom Auth Contracts API

OPEN COLLECTION

Ostrom Auth Orders API

OPEN COLLECTION

Ostrom Auth Prices API

OPEN COLLECTION

Ostrom Auth Products API

OPEN COLLECTION

Ostrom Auth Users API

OPEN COLLECTION

Ostrom Auth Webhooks API

OPEN COLLECTION

Scroll for all 8

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Ostrom MCP Server

MCP SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Ostrom Webhooks

ASYNCAPI

Security Posture 2

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

Ostrom Authentication

http/oauth2 · 2 schemes

SECURITY

Ostrom Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Ostrom Agentic Access

18 operations · 6 acting

18 operations · 6 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Access & Security 2

Authentication, authorization, and security posture

Operate 2

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 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: ostrom
name: Ostrom
description: 'Ostrom is a fully digital green-energy provider based in Berlin, Germany, offering variable, fixed, and dynamic
  electricity tariffs managed entirely through a mobile app, with smart-meter integration, device control, EV-charging optimization,
  and a NeoGrid virtual power plant. Its developer API lets Ostrom customers and partners integrate with the smart energy-management
  platform: OAuth2-secured REST endpoints for user data, orders, contracts, smart-meter energy consumption, day-ahead EEX
  spot prices, product pricing, and partner webhooks.'
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://cdn.prod.website-files.com/60ec127477c1e52acb31ae8c/60ffd44f1211be9d43aa3bd7_favicon-256x256.png
url: https://raw.githubusercontent.com/api-evangelist/ostrom/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- union-square-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 18
  pass: local-v1
tags:
- Company
- Energy
- Electricity
- Green Energy
- Smart Meter
- Dynamic Pricing
- Germany
- Sustainability
- Webhook
tags_raw:
- Company
- Energy
- Electricity
- Green Energy
- Smart Meter
- Dynamic Pricing
- Germany
- Sustainability
- Webhooks
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: ostrom:ostrom-auth-api
  name: Ostrom Auth API
  description: Describe how to authenticate in the api
  humanURL: https://docs.ostrom-api.io/reference/introduction
  baseURL: https://production.ostrom-api.io
  tags:
  - Authentication
  tags_raw:
  - Auth
  properties:
  - type: OpenAPI
    url: openapi/ostrom-auth-api-openapi.yml
- aid: ostrom:ostrom-contracts-api
  name: Ostrom Contracts API
  description: Describe how to fetch information related with contracts
  humanURL: https://docs.ostrom-api.io/reference/introduction
  baseURL: https://production.ostrom-api.io
  tags:
  - Contracts
  properties:
  - type: OpenAPI
    url: openapi/ostrom-contracts-api-openapi.yml
- aid: ostrom:ostrom-orders-api
  name: Ostrom Orders API
  description: Describe how to fetch information related with orders
  humanURL: https://docs.ostrom-api.io/reference/introduction
  baseURL: https://production.ostrom-api.io
  tags:
  - Order
  tags_raw:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/ostrom-orders-api-openapi.yml
- aid: ostrom:ostrom-prices-api
  name: Ostrom Prices API
  description: Describe how to fetch information related with prices
  humanURL: https://docs.ostrom-api.io/reference/introduction
  baseURL: https://production.ostrom-api.io
  tags:
  - Prices
  properties:
  - type: OpenAPI
    url: openapi/ostrom-prices-api-openapi.yml
- aid: ostrom:ostrom-products-api
  name: Ostrom Products API
  description: Describe how to fetch information related with products
  humanURL: https://docs.ostrom-api.io/reference/introduction
  baseURL: https://production.ostrom-api.io
  tags:
  - Product
  tags_raw:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/ostrom-products-api-openapi.yml
- aid: ostrom:ostrom-users-api
  name: Ostrom Users API
  description: Describe how to fetch information related with users
  humanURL: https://docs.ostrom-api.io/reference/introduction
  baseURL: https://production.ostrom-api.io
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/ostrom-users-api-openapi.yml
- aid: ostrom:ostrom-webhooks-api
  name: Ostrom Webhooks API
  description: Describe how to create webhooks and receive notifications from our system.
  humanURL: https://docs.ostrom-api.io/reference/introduction
  baseURL: https://production.ostrom-api.io
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/ostrom-webhooks-api-openapi.yml
common:
- type: Overlay
  url: overlays/ostrom-openapi-overlay.yaml
- type: DeveloperPortal
  url: https://developer.ostrom-api.io/
- type: Documentation
  url: https://docs.ostrom-api.io/
- type: APIReference
  url: https://docs.ostrom-api.io/reference/introduction
- type: GettingStarted
  url: https://docs.ostrom-api.io/docs/getting-started
- type: Support
  url: https://support.ostrom.de/
- type: Blog
  url: https://ostrom.de/en/blog
- type: Pricing
  url: https://ostrom.de/en/strompreis
- type: SignUp
  url: https://ostrom.de/en/calculate-tariff
- type: Login
  url: https://join.ostrom.de
- type: TermsOfService
  url: https://ostrom.de/en/terms-and-conditions-overview
- type: PrivacyPolicy
  url: https://ostrom.de/en/privacy-policy
- type: Authentication
  url: authentication/ostrom-authentication.yml
- type: Sandbox
  url: sandbox/ostrom-sandbox.yml
- type: Conventions
  url: conventions/ostrom-conventions.yml
- type: ChangeLog
  url: changelog/ostrom-changelog.yml
- type: Lifecycle
  url: lifecycle/ostrom-lifecycle.yml
- type: ErrorCatalog
  url: errors/ostrom-problem-types.yml
- type: DataModel
  url: data-model/ostrom-data-model.yml
- type: Conformance
  url: conformance/ostrom-conformance.yml
- type: Webhooks
  url: asyncapi/ostrom-webhooks.yml
- type: MCPServer
  url: mcp/ostrom-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/ostrom-llms.txt
- type: DomainSecurity
  url: security/ostrom-domain-security.yml
- type: AgenticAccess
  url: agentic-access/ostrom-agentic-access.yml
- type: Website
  url: https://ostrom.de