aWATTar

aWATTar provides a free, public REST API delivering real-time and next-day hourly electricity spot prices sourced from the EPEX Spot market exchange for both Austria and Germany. The API enables developers, smart home integrators, and commercial operators to build dynamic energy pricing applications that respond to market conditions. Prices are updated daily at 14:00 CET covering the following day, and the API returns JSON data including start/end timestamps and market price per MWh. No authentication token is required, making integration straightforward for any developer. The service is offered free of charge under a fair-use policy of 100 requests per day per client, supporting use cases such as EV charging optimization, smart heating control, and automated energy management systems.

aWATTar publishes 1 API contract indexed on the APIs.io network: Market Data API. Tagged areas include Electricity, Energy, Spot Price, EPEX Spot, and Dynamic Pricing.

The aWATTar catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

aWATTar’s developer surface includes documentation, engineering blog, pricing, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.5/100 thin ▬ flat Agent 29/100 agent ready Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreeOpen⚡ Free to try

1 published contract

Electricity EnergySpot PriceEPEX SpotDynamic Pricing Austria Germany Smart Energy IoT

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 27.5/100 · thin

Contract Quality 11.4 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 2.7 / 17

Operational Transparency 1.2 / 11

Contract Governance 1.0 / 10

Discoverability 5.6 / 9

Regulatory Posture 1.4 / 15

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 11.9 — up to +17.6 composite points
Access Clarity scores 15.8 — up to +16.8 composite points
Operational Transparency scores 10.5 — up to +11.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/awattar/apis.yml: open an issue on github.com/api-evangelist/awattar to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Energy and Utilities	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 1

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

aWATTar Market Data API

EPEX Spot electricity market price data

Open Collections 1

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

aWATTar Market Data API

OPEN COLLECTION

aWATTar API pricing

Not yet checked against aWATTar's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free	Free

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Awattar Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Awattar Rate Limits

1 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

aWATTar

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Awattar Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Awattar Context

5 classes · 8 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

aWATTar — jsonschema rules

4 rules · 3 warnings 1 info

SPECTRAL

JSON Schema 1

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

aWATTar Market Data Response

2 properties

JSON SCHEMA

Examples 1

Example request and response payloads for these APIs.

Awattar Market Data Example

2 fields

EXAMPLE

Security Posture 1

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

Awattar Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Awattar Agentic Access

1 operation

1 operations · 0 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Source (apis.yml)

name: aWATTar
description: aWATTar provides a free, public REST API delivering real-time and next-day hourly electricity spot prices sourced
  from the EPEX Spot market exchange for both Austria and Germany. The API enables developers, smart home integrators, and
  commercial operators to build dynamic energy pricing applications that respond to market conditions. Prices are updated
  daily at 14:00 CET covering the following day, and the API returns JSON data including start/end timestamps and market price
  per MWh. No authentication token is required, making integration straightforward for any developer. The service is offered
  free of charge under a fair-use policy of 100 requests per day per client, supporting use cases such as EV charging optimization,
  smart heating control, and automated energy management systems.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Free · Open access
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/awattar.png
url: https://raw.githubusercontent.com/api-evangelist/awattar/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
tags:
- Electricity
- Energy
- Spot Price
- EPEX Spot
- Dynamic Pricing
- Austria
- Germany
- Smart Energy
- IoT
apis:
- aid: awattar:awattar-market-data-api
  name: aWATTar Market Data API
  description: EPEX Spot electricity market price data
  humanURL: https://www.awattar.at/services/api
  baseURL: https://api.awattar.at
  tags:
  - Market Data
  properties:
  - type: OpenAPI
    url: openapi/awattar-market-data-api-openapi.yml
  - type: Documentation
    url: https://www.awattar.at/services/api
common:
- type: AgenticAccess
  url: agentic-access/awattar-agentic-access.yml
- type: DomainSecurity
  url: security/awattar-domain-security.yml
- type: Website
  url: https://www.awattar.at
- type: Documentation
  url: https://www.awattar.at/services/api
- type: GitHubOrg
  url: https://github.com/awattarenergy
- type: LinkedIn
  url: https://www.linkedin.com/company/awattar
- type: Blog
  url: https://www.awattar.at/blog
- type: Pricing
  url: https://www.awattar.at/tariffs/hourly
- type: Plans
  url: plans/awattar-plans-pricing.yml
- type: RateLimits
  url: rate-limits/awattar-rate-limits.yml
- type: FinOps
  url: finops/awattar-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

aWATTar API — frequently asked questions

Does aWATTar have an API?

Yes. APIs.io lists 1 API from aWATTar, including aWATTar Market Data API.

Is there an OpenAPI specification for the aWATTar API?

Yes. APIs.io indexes 1 OpenAPI specification for aWATTar, each linked for download from this page.

How much does the aWATTar API cost?

APIs.io lists 1 pricing plan for aWATTar, with each plan's price, limits and inclusions under Pricing on this page.

Is the aWATTar API ready for AI agents?

aWATTar has a Kin Score of 27.5 out of 100 (thin) and an Agent Readiness score of 29.1 (agent-ready), scored by API Evangelist on 2026-11-06.

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get_provider_ratingPRO — composite, band, trend and facet scores.
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