ClearFlame Engines

ClearFlame Engine Technologies was a Woodridge, Illinois clean-combustion engine startup founded in 2016 by BJ Johnson and Julie Blumreiter, developing a retrofit technology that let conventional heavy-duty diesel engines run on ethanol and other low-carbon liquid fuels for the hard-to-electrify segments of transportation — long-haul trucking, agriculture, construction and other non-road diesel applications. It raised roughly $50M across Series A and B rounds from venture and industrial investors including John Deere, and appeared on secondary markets such as Forge Global. The company is a hardware and powertrain engineering business with no developer program, no public API and no machine-readable specifications; by 2025 it had lost investor support, its co-founder CEO had departed, it was listed as not in good standing in Illinois, and it moved toward bankruptcy and asset liquidation. Its website no longer serves content.

ClearFlame Engines is profiled on the APIs.io network. Tagged areas include Company, Engines, Clean Energy, Transportation, and Heavy Duty Trucking.

🌐 Visit website 📡 Source on GitHub
3.9/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
0 APIs
CompanyEnginesClean EnergyTransportationHeavy Duty TruckingDecarbonizationEthanolManufacturing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 3.9/100 · minimal
Contract Quality 0.0 / 21
Developer Ergonomics 0.0 / 17
Commercial Clarity 0.0 / 17
Operational Transparency 0.0 / 11
Governance 0.0 / 10
Discoverability 3.9 / 9
Regulatory Posture 0.0 / 15
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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/clearflame-engines: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Resources

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: clearflame-engines
name: ClearFlame Engines
description: ClearFlame Engine Technologies was a Woodridge, Illinois clean-combustion engine startup founded in 2016 by BJ
  Johnson and Julie Blumreiter, developing a retrofit technology that let conventional heavy-duty diesel engines run on ethanol
  and other low-carbon liquid fuels for the hard-to-electrify segments of transportation — long-haul trucking, agriculture,
  construction and other non-road diesel applications. It raised roughly $50M across Series A and B rounds from venture and
  industrial investors including John Deere, and appeared on secondary markets such as Forge Global. The company is a hardware
  and powertrain engineering business with no developer program, no public API and no machine-readable specifications; by
  2025 it had lost investor support, its co-founder CEO had departed, it was listed as not in good standing in Illinois, and
  it moved toward bankruptcy and asset liquidation. Its website no longer serves content.
url: https://raw.githubusercontent.com/api-evangelist/clearflame-engines/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-08-09'
modified: '2026-08-09'
tags:
- Company
- Engines
- Clean Energy
- Transportation
- Heavy Duty Trucking
- Decarbonization
- Ethanol
- Manufacturing
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://forgeglobal.com/clearflame-engines_stock/
x-enrichment:
  date: '2026-08-09'
  status: nochange
  artifacts_added: 0
  pass: local-v1
x-coverage:
  state: none
  reason: defunct
  detail: ClearFlame moved toward bankruptcy and asset liquidation in 2025 after losing investor support, and clearflameengines.com
    now answers every path with a Cloudflare 522 (origin unreachable) — the last Wayback capture of a working site is 2025-07-09,
    and there was never a developer program on it to begin with.
  evidence:
  - url: https://www.clearflameengines.com/
    status: 522
  - url: https://www.clearflameengines.com/.well-known/agent-card.json
    status: 0
  - url: https://api.clearflameengines.com/
    status: 0
  - url: https://pypi.org/simple/clearflame/
    status: 404
  checked: '2026-08-09'