Webersheim

Webersheim is a German digital agency behind the alcometer.de project, offering a free, open-source blood‑alcohol calculator (Promillerechner) for the public and as a Model Context Protocol (MCP) server for AI assistants. The service estimates blood‑alcohol concentration using Widmark’s formula, provides German drink‑driving limits, and includes tools for conversion and limits lookup, all without registration or authentication.

Webersheim is listed with 1 API on the APIs.io network. Tagged areas include Alcohol, Health, Calculator, Germany, and MCP.

Webersheim’s developer surface includes documentation, getting-started guide, support, and 7 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

12.7/100 emerging ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessOpen

1 API 1 MCP Servers

Alcohol Health Calculator Germany MCP

Kin Score

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

Composite quality — 12.7/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.4 / 17

Access Clarity 0.9 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 5.5 / 9

Regulatory Posture 2.9 / 15

Agent readiness — 4/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Health 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

12 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 5.3 — up to +18.9 composite points
Developer Ergonomics scores 20.2 — up to +16.0 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/alcometer-de/apis.yml: open an issue on github.com/api-evangelist/alcometer-de 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 →

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

APIs 1

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

alcometer.de MCP

MCP API offering blood‑alcohol estimation tools.

MCP Servers 1

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

Webersheim MCP Server

Remote MCP server at www.alcometer.de.

MCP SERVER

Security Posture 2

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

Alcometer De Authentication

0 schemes

SECURITY

Alcometer De Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Alcometer De Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: alcometer-de
name: Webersheim
description: Webersheim is a German digital agency behind the alcometer.de project, offering a free, open-source blood‑alcohol
  calculator (Promillerechner) for the public and as a Model Context Protocol (MCP) server for AI assistants. The service
  estimates blood‑alcohol concentration using Widmark’s formula, provides German drink‑driving limits, and includes tools
  for conversion and limits lookup, all without registration or authentication.
url: https://artifacts.apis.io/alcometer-de/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-01 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Open access
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
tags:
- Alcohol
- Health
- Calculator
- Germany
- MCP
image: https://www.alcometer.de/og.png
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: LLMsTxt
  url: llms/alcometer-de-llms.txt
- type: MCPServer
  url: mcp/alcometer-de-mcp.yml
- type: Hosts
  url: hosts/alcometer-de-hosts.yml
- type: DomainSecurity
  url: security/alcometer-de-domain-security.yml
- type: Website
  url: https://alcometer.de/
- type: DeveloperPortal
  url: https://www.alcometer.de/fuer-entwickler/
- type: Documentation
  url: https://www.alcometer.de/fuer-entwickler/
- type: GettingStarted
  url: https://www.alcometer.de/fuer-entwickler/
- type: PrivacyPolicy
  url: https://www.alcometer.de/datenschutz/
- type: Support
  url: mailto:legal@webersheim.de
apis:
- name: alcometer.de MCP
  description: MCP API offering blood‑alcohol estimation tools.
  humanURL: https://www.alcometer.de/fuer-entwickler/
  baseURL: https://www.alcometer.de/mcp
  aid: alcometer-de:alcometer-de-mcp
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 21
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

Webersheim API — frequently asked questions

Does Webersheim have an API?

Yes. APIs.io lists 1 API from Webersheim, including alcometer.de MCP.

How do I authenticate with the Webersheim API?

Webersheim documents its authentication (0 schemes). The details are profiled on APIs.io as Alcometer De Authentication.

Does Webersheim have an MCP server?

Yes. APIs.io lists 1 MCP server for Webersheim: Remote MCP server at www.alcometer.de.

Is the Webersheim API ready for AI agents?

Webersheim has a Kin Score of 12.7 out of 100 (emerging) and an Agent Readiness score of 3.5 (human-only), scored by API Evangelist on 2026-11-06.

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