# Achates Power

**Canonical:** https://apis.io/providers/achates-power/  
**Website:** https://achatespower.com/  
**APIs profiled:** 0

Achates Power is a San Diego, California engine technology company founded in 2004 by Dr. James Lemke and John Walton that develops opposed-piston, two-stroke compression-ignition engine architecture and licenses the resulting engine designs, development tools, simulation software and patents to engine manufacturers and OEMs. Its engines target passenger vehicles, medium and heavy-duty commercial trucks, military vehicles, and off-road and power-generation applications, and the company has claimed fuel-efficiency improvements of as much as 30 percent over conventional engines at comparable or better emissions. Achates Power has received U.S. Army TARDEC, Department of Energy and ARPA-E funding and partners with engine manufacturers such as Fairbanks Morse. It is a privately held hardware and engineering licensing business and publishes no public developer program, API, or machine-readable API artifacts.

## Kin Score — 9.6 / 100 (minimal)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (-1.4 from 11.0).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 2.4 |
| Commercial Clarity | 21.1 |
| Access Clarity | 21.1 |

Regulatory layer — **Energy & Utilities**: 18.9 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Security (1)

- **Achates Power Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Automotive, Engines, Manufacturing, Clean Technology, Transportation, Defense, Power Generation

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/achates-power/). Scores are computed from the provider's own public artifacts under a published rubric.