Prometheus Fuels

Prometheus Fuels is a Santa Cruz, California energy company founded in 2019 by Rob McGinnis and launched out of Y Combinator, producing carbon-neutral electrofuels from atmospheric CO2. Its "no-desorb" direct air capture system dissolves CO2 into carbonate ions in water, and its Faraday Reactor hydrocarbon electrolyzer converts that carbon into methanol, gasoline, diesel, jet fuel and renewable natural gas at room temperature and atmospheric pressure using off-grid solar power. The company also markets an Ultra Long Duration Energy Storage (ULDES) product aimed at data-center power, and operates the Titan Forge Alpha pilot plant in Santa Cruz. It is backed by BMW i Ventures, Maersk Growth and Y Combinator. Prometheus Fuels publishes no product API, developer portal or SDK — it is a physical fuels manufacturer. The single machine-readable surface it operates is the WordPress REST API (wp/v2) behind its corporate site at prometheusfuels.ai, which serves anonymous read access to pages, posts, the site's `news-articles` custom post type, categories, tags, media, comments, users, search, taxonomies, types and statuses, with write operations gated behind WordPress application passwords. This profile was enriched by the API Evangelist pipeline from that live surface.

Prometheus Fuels publishes 12 APIs on the APIs.io network, including news-articles API, pages API, posts API, and 9 more. Tagged areas include Company, Energy, Climate Tech, Carbon Capture, and Synthetic Fuels.

Prometheus Fuels’ developer surface includes authentication, YouTube channel, and 17 more developer resources.

🌐 Visit website 📡 Source on GitHub

28.2/100 thin ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

12 APIs

Company Energy Climate Tech Carbon Capture Synthetic Fuels Direct Air Capture Energy Storage content-api WordPress

Kin Score

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

Composite quality — 28.2/100 · thin

Contract Quality 10.5 / 19

Developer Ergonomics 4.6 / 15

Access Clarity 0.0 / 15

Operational Transparency 0.3 / 10

Contract Governance 0.4 / 9

Discoverability 5.6 / 8

Regulatory Posture 3.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 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 0 / 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

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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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/prometheus-fuels: 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 →

APIs 12

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

Prometheus Fuels news-articles API

The news-articles API from Prometheus Fuels — 10 operation(s) over the site's `news-articles` custom post type, the company's published press and news coverage. Read operations ...

Prometheus Fuels pages API

The pages API from Prometheus Fuels — 13 operation(s) for pages, including revisions and autosaves.

Prometheus Fuels posts API

The posts API from Prometheus Fuels — 13 operation(s) for posts, including revisions and autosaves.

Prometheus Fuels media API

The media API from Prometheus Fuels — 9 operation(s) for the site's media library.

Prometheus Fuels categories API

The categories API from Prometheus Fuels — 7 operation(s) for categories.

Prometheus Fuels tags API

The tags API from Prometheus Fuels — 7 operation(s) for tags.

Prometheus Fuels comments API

The comments API from Prometheus Fuels — 7 operation(s) for comments.

Prometheus Fuels users API

The users API from Prometheus Fuels — 21 operation(s) for users and application-password management. The collection read is anonymous; everything else requires authentication.

Prometheus Fuels search API

The search API from Prometheus Fuels — 1 operation for cross-type site search.

Prometheus Fuels taxonomies API

The taxonomies API from Prometheus Fuels — 2 operation(s) describing the site's taxonomies.

Prometheus Fuels types API

The types API from Prometheus Fuels — 2 operation(s) describing the site's content types.

Prometheus Fuels statuses API

The statuses API from Prometheus Fuels — 2 operation(s) describing publication statuses.

Scroll for all 12

Open Collections 13

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

API Collection

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Categories API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Comments API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Media API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) News Articles API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Pages API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Posts API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Search API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Statuses API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Tags API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Taxonomies API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Types API

OPEN COLLECTION

Prometheus Fuels Website Content API (WordPress REST API) Users API

OPEN COLLECTION

Scroll for all 13

Security Posture 2

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

Prometheus Fuels Authentication

http · 1 scheme

SECURITY

Prometheus Fuels Domain Security

TLSv1.3

SECURITY

Resources

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

AgentSkill

AgentSkill

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Lifecycle

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Company 4

The organization behind the API

Website

Website

About

About

LinkedIn

Twitter

Twitter

Other 2

Properties that don't map to a standard resource type

Technology

Technology

SecondaryMarket

SecondaryMarket

Source (apis.yml)

aid: prometheus-fuels
name: Prometheus Fuels
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://prometheusfuels.ai/wp-content/uploads/2026/03/logo_favicon-300x300.png
description: Prometheus Fuels is a Santa Cruz, California energy company founded in 2019 by Rob McGinnis and launched out
  of Y Combinator, producing carbon-neutral electrofuels from atmospheric CO2. Its "no-desorb" direct air capture system dissolves
  CO2 into carbonate ions in water, and its Faraday Reactor hydrocarbon electrolyzer converts that carbon into methanol, gasoline,
  diesel, jet fuel and renewable natural gas at room temperature and atmospheric pressure using off-grid solar power. The
  company also markets an Ultra Long Duration Energy Storage (ULDES) product aimed at data-center power, and operates the
  Titan Forge Alpha pilot plant in Santa Cruz. It is backed by BMW i Ventures, Maersk Growth and Y Combinator. Prometheus
  Fuels publishes no product API, developer portal or SDK — it is a physical fuels manufacturer. The single machine-readable
  surface it operates is the WordPress REST API (wp/v2) behind its corporate site at prometheusfuels.ai, which serves anonymous
  read access to pages, posts, the site's `news-articles` custom post type, categories, tags, media, comments, users, search,
  taxonomies, types and statuses, with write operations gated behind WordPress application passwords. This profile was enriched
  by the API Evangelist pipeline from that live surface.
url: https://raw.githubusercontent.com/api-evangelist/prometheus-fuels/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.23'
created: '2026-08-05'
modified: '2026-08-05'
tags:
- Company
- Energy
- Climate Tech
- Carbon Capture
- Synthetic Fuels
- Direct Air Capture
- Energy Storage
- content-api
- WordPress
tags_raw:
- Company
- Energy
- Climate Tech
- Carbon Capture
- Synthetic Fuels
- Direct Air Capture
- Energy Storage
- Content API
- WordPress
apis:
- aid: prometheus-fuels:prometheus-fuels-news-articles-api
  name: Prometheus Fuels news-articles API
  description: The news-articles API from Prometheus Fuels — 10 operation(s) over the site's `news-articles` custom post type,
    the company's published press and news coverage. Read operations respond anonymously; writes require WordPress application
    passwords.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - news-articles
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-news-articles-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-news-articles-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-pages-api
  name: Prometheus Fuels pages API
  description: The pages API from Prometheus Fuels — 13 operation(s) for pages, including revisions and autosaves.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - Pages
  tags_raw:
  - pages
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-pages-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-pages-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-posts-api
  name: Prometheus Fuels posts API
  description: The posts API from Prometheus Fuels — 13 operation(s) for posts, including revisions and autosaves.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - Posts
  tags_raw:
  - posts
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-posts-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-posts-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-media-api
  name: Prometheus Fuels media API
  description: The media API from Prometheus Fuels — 9 operation(s) for the site's media library.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - Media
  tags_raw:
  - media
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-media-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-media-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-categories-api
  name: Prometheus Fuels categories API
  description: The categories API from Prometheus Fuels — 7 operation(s) for categories.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - Categories
  tags_raw:
  - categories
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-categories-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-categories-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-tags-api
  name: Prometheus Fuels tags API
  description: The tags API from Prometheus Fuels — 7 operation(s) for tags.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - Tags
  tags_raw:
  - tags
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-tags-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-tags-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-comments-api
  name: Prometheus Fuels comments API
  description: The comments API from Prometheus Fuels — 7 operation(s) for comments.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - Comments
  tags_raw:
  - comments
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-comments-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-comments-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-users-api
  name: Prometheus Fuels users API
  description: The users API from Prometheus Fuels — 21 operation(s) for users and application-password management. The collection
    read is anonymous; everything else requires authentication.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - User
  tags_raw:
  - users
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-users-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-users-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-search-api
  name: Prometheus Fuels search API
  description: The search API from Prometheus Fuels — 1 operation for cross-type site search.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - Search
  tags_raw:
  - search
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-search-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-search-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-taxonomies-api
  name: Prometheus Fuels taxonomies API
  description: The taxonomies API from Prometheus Fuels — 2 operation(s) describing the site's taxonomies.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - taxonomies
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-taxonomies-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-taxonomies-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-types-api
  name: Prometheus Fuels types API
  description: The types API from Prometheus Fuels — 2 operation(s) describing the site's content types.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - Types
  tags_raw:
  - types
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-types-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-types-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: prometheus-fuels:prometheus-fuels-statuses-api
  name: Prometheus Fuels statuses API
  description: The statuses API from Prometheus Fuels — 2 operation(s) describing publication statuses.
  humanURL: https://prometheusfuels.ai/wp-json/
  baseURL: https://prometheusfuels.ai/wp-json
  tags:
  - Status
  tags_raw:
  - statuses
  properties:
  - type: OpenAPI
    url: openapi/prometheus-fuels-statuses-api-openapi.yml
  - type: Overlay
    url: overlays/prometheus-fuels-statuses-overlay.yaml
  - type: Documentation
    url: https://prometheusfuels.ai/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Authentication
  url: authentication/prometheus-fuels-authentication.yml
- type: Conventions
  url: conventions/prometheus-fuels-conventions.yml
- type: ErrorCatalog
  url: errors/prometheus-fuels-problem-types.yml
- type: DataModel
  url: data-model/prometheus-fuels-data-model.yml
- type: Lifecycle
  url: lifecycle/prometheus-fuels-lifecycle.yml
- type: Conformance
  url: conformance/prometheus-fuels-conformance.yml
- type: X-MCPServerCandidate
  url: mcp/prometheus-fuels-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
  url: skills/prometheus-fuels-browse-news-articles.md
- type: AgentSkill
  url: skills/prometheus-fuels-search-site-content.md
- type: LLMsTxt
  url: llms/prometheus-fuels-llms.txt
- type: DomainSecurity
  url: security/prometheus-fuels-domain-security.yml
- type: Website
  url: https://prometheusfuels.ai/
- type: About
  url: https://prometheusfuels.ai/about/
- type: Technology
  url: https://prometheusfuels.ai/technology/
- type: GitHubOrganization
  url: https://github.com/Prometheus-Fuels
- type: LinkedIn
  url: https://www.linkedin.com/company/prometheusfuels
- type: Twitter
  url: https://x.com/prometheusfuels
- type: YouTube
  url: https://www.youtube.com/@PrometheusFuels
- type: SecondaryMarket
  url: https://forgeglobal.com/prometheus-fuels_stock/
x-enrichment:
  date: '2026-08-05'
  status: enriched
  artifacts_added: 37
  pass: local-v1

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