XFuel

XFuel develops, patents, and deploys technologies that transform diverse waste into low-carbon drop-in transport fuels, using its Chemical Liquid Refining (CLR) and Mechanical Carbon Conversion (MECC) processes to produce marine (ISO 8217 DMA), road (EN590), and in-development sustainable aviation fuels. Headquartered in Dublin, Ireland, with operations in Bunyola, Spain, and backed by Union Square Ventures. XFuel publishes no public API or developer program as of 2026-07-21.

XFuel is profiled on the APIs.io network. Tagged areas include Company, Energy, Biofuels, Sustainability, and Transportation.

XFuel’s developer surface includes engineering blog and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

7.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

CompanyEnergyBiofuelsSustainabilityTransportationClimateWaste-to-Fuel

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 7.4/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.4 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.0 / 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

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/xfuel: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Contact

Contact

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 6

The organization behind the API

Website

Blog

BlogRSS

Careers

LinkedIn

Twitter

Twitter

Source (apis.yml)

aid: xfuel
name: XFuel
description: XFuel develops, patents, and deploys technologies that transform diverse waste into low-carbon drop-in transport
  fuels, using its Chemical Liquid Refining (CLR) and Mechanical Carbon Conversion (MECC) processes to produce marine (ISO
  8217 DMA), road (EN590), and in-development sustainable aviation fuels. Headquartered in Dublin, Ireland, with operations
  in Bunyola, Spain, and backed by Union Square Ventures. XFuel publishes no public API or developer program as of 2026-07-21.
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://xfuel.com/wp-content/uploads/2026/01/cropped-xfuel-ico-c-192x192.png
url: https://raw.githubusercontent.com/api-evangelist/xfuel/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: '2026-07-21'
tags:
- Company
- Energy
- Biofuels
- Sustainability
- Transportation
- Climate
- Waste-to-Fuel
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/xfuel-domain-security.yml
- type: Website
  url: https://xfuel.com
- type: LLMsTxt
  url: llms/xfuel-llms.txt
- type: Blog
  url: https://xfuel.com/news/
- type: BlogRSS
  url: https://xfuel.com/feed/
- type: PrivacyPolicy
  url: https://xfuel.com/privacy
- type: Contact
  url: https://xfuel.com/contact/
- type: Careers
  url: https://xfuel.com/careers/
- type: LinkedIn
  url: https://linkedin.com/company/xfuelhq
- type: Twitter
  url: https://twitter.com/xfuelhq
x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 3
  pass: local-v1