Ohmium

Ohmium International designs, manufactures and deploys modular, vertically-stackable proton exchange membrane (PEM) electrolyzer systems for cost-competitive green hydrogen production. Its Lotus PEM electrolyzer platform integrates power electronics, water treatment and controls into skid-mounted modules for industrial, energy and mobility customers, and is paired with EPC and remote monitoring and maintenance (RM&M) services. Ohmium is a hardware and clean-energy engineering company: it publishes no public developer program, no API reference and no machine-readable specification, and its customer-facing monitoring and service portals are third-party SaaS products hosted on Ohmium subdomains behind login.

Ohmium is profiled on the APIs.io network. Tagged areas include Company, Green Hydrogen, Hydrogen, Electrolyzers, and Clean Energy.

Ohmium’s developer surface includes engineering blog, support, YouTube channel, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub

11.3/100 emerging ▬ flat Agent 0/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company Green Hydrogen Hydrogen Electrolyzers Clean Energy Energy Manufacturing Industrial Equipment Decarbonization

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 11.3/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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

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 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/.

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 github.com/api-evangelist/ohmium: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

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

Ohmium Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 3

Status, limits, changes, and where to get help

PressReleases

PressReleases

Support

Support

Contact

Contact

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 5

The organization behind the API

Website

About

Blog

Careers

LinkedIn

Other 3

Properties that don't map to a standard resource type

Products

Products

Resources

Resources

CompanyProfile

CompanyProfile

Source (apis.yml)

aid: ohmium
name: Ohmium
description: 'Ohmium International designs, manufactures and deploys modular, vertically-stackable proton exchange membrane
  (PEM) electrolyzer systems for cost-competitive green hydrogen production. Its Lotus PEM electrolyzer platform integrates
  power electronics, water treatment and controls into skid-mounted modules for industrial, energy and mobility customers,
  and is paired with EPC and remote monitoring and maintenance (RM&M) services. Ohmium is a hardware and clean-energy engineering
  company: it publishes no public developer program, no API reference and no machine-readable specification, and its customer-facing
  monitoring and service portals are third-party SaaS products hosted on Ohmium subdomains behind login.'
url: https://raw.githubusercontent.com/api-evangelist/ohmium/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-09-02'
  method: derived
image: https://cdn.prod.website-files.com/62727ad5ed2dca1929e23851/62727e583c4685117faeab2a_ohmium-webclip.png
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.23'
created: '2026-08-04'
modified: '2026-08-04'
tags:
- Company
- Green Hydrogen
- Hydrogen
- Electrolyzers
- Clean Energy
- Energy
- Manufacturing
- Industrial Equipment
- Decarbonization
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.ohmium.com/
- type: About
  url: https://www.ohmium.com/about-ohmium
- type: Products
  url: https://www.ohmium.com/products
- type: Blog
  url: https://www.ohmium.com/blog
- type: PressReleases
  url: https://www.ohmium.com/press-release
- type: Resources
  url: https://www.ohmium.com/resources
- type: Support
  url: https://help.ohmium.com/support/home
- type: Contact
  url: https://www.ohmium.com/contact
- type: Careers
  url: https://ohmium.wd12.myworkdayjobs.com/Ohmium_Careers
- type: PrivacyPolicy
  url: https://www.ohmium.com/privacy-policy
- type: TermsOfService
  url: https://www.ohmium.com/terms-and-conditions
- type: LinkedIn
  url: https://www.linkedin.com/company/ohmium
- type: YouTube
  url: https://www.youtube.com/@ohmiuminc
- type: CompanyProfile
  url: https://forgeglobal.com/ohmium_stock/
- type: DomainSecurity
  url: security/ohmium-domain-security.yml
- type: LLMsTxt
  url: llms/ohmium-llms.txt
x-enrichment:
  date: '2026-08-04'
  status: minimal
  artifacts_added: 2
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Ohmium manufactures PEM electrolyzer hardware and publishes no developer program at all; the only software on its
    domains is third-party SaaS on custom subdomains (Canary Labs Axiom at canary.ohmium.com, Freshworks at workspace.ohmium.com,
    Freshdesk at help.ohmium.com) plus an Azure Static Web App lead-time tool whose /api/* routes answer 401.
  evidence:
  - url: https://www.ohmium.com/openapi.json
    status: 404
  - url: https://www.ohmium.com/.well-known/api-catalog
    status: 404
  - url: https://www.ohmium.com/llms.txt
    status: 404
  - url: https://leadtime.ohmium.com/api/swagger.json
    status: 401
  checked: '2026-08-04'

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