# Green Hills Software

**Canonical:** https://apis.io/providers/green-hills-software/  
**Website:** https://www.ghs.com/  
**APIs profiled:** 0

Green Hills Software is a privately held embedded software company founded in 1982 by Dan O'Dowd and Carl Rosenberg and headquartered in Santa Barbara, California. It builds safety- and security-certified real-time operating systems (INTEGRITY, INTEGRITY-178 tuMP, u-velOSity), embedded hypervisors (INTEGRITY Multivisor, u-visor), optimizing C/C++/Ada/Fortran compilers, the MULTI and AdaMULTI integrated development environments, the TimeMachine back-in-time debug suite, the DoubleCheck static analyzer, the Green Hills Probe hardware debugger, and networking, file-system and USB middleware. Its customers ship these components inside aerospace, defense, automotive, medical, industrial, rail, telecommunications and consumer devices. Green Hills is a toolchain and operating-system vendor rather than an API provider: the programmable interfaces it ships are in-product C/C++, POSIX and MULTI-Python scripting APIs delivered with a licensed installation and documented in manuals distributed with the product, and its technical support portal at support.ghs.com requires an account. No public web API, developer portal, or machine-readable API description was found on any Green Hills host during enrichment.

## Kin Score — 12.3 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (-0.7 from 13.0).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 7.1 |
| Commercial Clarity | 18.4 |
| Access Clarity | 18.4 |

## Agent readiness — 2.5 (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 | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Security (1)

- **Green Hills Software Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Green Hills Software Plans Pricing**

## Tags

Company, Embedded Systems, Real-Time Operating Systems, RTOS, Compilers, Developer Tools, Debugging, Virtualization, Safety Critical, Automotive, Aerospace and Defense, Cybersecurity

---

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