# Amentum

**Canonical:** https://apis.io/providers/amentum/  
**Website:** https://www.amentum.com  
**APIs profiled:** 0

Amentum Holdings, Inc. (NYSE: AMTM) is a global advanced engineering and technology solutions company serving U.S. federal customers across defense, intelligence, energy, space, and civilian missions, with allied work in the United Kingdom and Australia. The company was created from the spin-off of AECOM's Management Services business in 2020, and on September 27, 2024 completed a Reverse Morris Trust transaction with Jacobs Solutions to merge Jacobs' Critical Mission Solutions (CMS) and Cyber & Intelligence (C&I) businesses into Amentum. Post-merger Amentum reports approximately $14.4 billion in fiscal year 2025 revenue, a $47.1 billion backlog, ~53,000 employees in 80 countries, and is headquartered in Chantilly, Virginia. The business is organized around six capability areas — Mission Modernization & Sustainment, Space Systems, Digital Transformation, Sustainability & Environment, Advanced Energy Solutions, and Data Analytics & Cyber. Most delivery occurs under contract through classified, CAC-gated, or program portals; no public developer portal, OpenAPI, or REST API has been identified.

## Kin Score — 9.3 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 9.3).

| 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 | 18.4 |
| Access Clarity | 18.4 |

Regulatory layer — **Energy & Utilities**: 20.3 (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 |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Amentum Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Federal Services, Defense IT, National Security, Intelligence, Space Systems, Nuclear, Energy, Environmental Services, Engineering Services, Cyber, Digital Transformation, Government Contractor

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