This is not our API. This repository is an independent, third-party profile of a company's publicly available API surface, maintained by API Evangelist. API Evangelist does not operate, host, resell, or support this company's APIs, and is not affiliated with or endorsed by the company unless stated on the profile.
Where the information came from. Everything here is assembled from material a member of the public can reach with a browser and no credentials — the company's own website, developer portal and documentation, the specifications it publishes for public use (OpenAPI, AsyncAPI, JSON Schema,
apis.json,llms.txtand similar), its public repositories, and its public status, pricing and changelog pages. Nothing here is obtained by breaching a system, defeating an access control, or using credentials of any kind.The rating is an independent assessment. The Kin Score and Agent Readiness rating are independently calculated scores of a company's public API artifacts, produced by API Evangelist against a published rubric. They are not certifications, endorsements, security assessments, or audits, and they score published artifacts — not the quality, safety, or security of the software.
Corrections, re-scores, and removal are free. No partnership, contract, or purchase is required, and you do not need to justify the request.
- Something wrong? Open an issue on this repository, or email info@apievangelist.com.
- Published something new? Ask for a re-score and we will re-run the rating.
- Want the listing taken down? Say so and we will honor it. The profile is reduced to your company name, a factual description, and a link to your own site, and the company is recorded as unrated — never scored zero for having asked.
Response times. Acknowledgement within one business day; removal or restriction within two business days; corrections and re-scores within five business days.
Not from the company, and here with a question? You are welcome here — we would rather be the front line and point you the right way than have a good report go nowhere. What this repository can answer is narrow, though, so it is worth knowing who you are actually looking for:
- A question about how the API works, an account, billing, or a bug in the service — that is the company's own support, not us. We profile this API; we do not operate it and cannot see your account.
- A bug in an open-source project we only catalog — file it on that project's own repository. This has happened with a real and correct bug report that reached us instead of the people who could fix it, which helped nobody.
- Anything about this listing itself — the description, the tags, the rating, a missing or wrong artifact — is ours. Open an issue here.
- Not sure, or something general about API Evangelist or APIs.io — open an issue on the APIs.io Inbox and we will route it.
This repository contains no software, and we will never ask you to download anything. There is no build, release, installer, or binary here — only text and machine-readable API descriptions, so there is nothing here that can be "corrupt" or need "repairing". Any issue, comment, or email claiming otherwise and offering a download link is not from us and is hostile. Do not follow the link; it is a lure. Report it to GitHub and, if you like, tell us at info@apievangelist.com so we can take it down.
On a security or compliance team? Email info@apievangelist.com with security in the subject line and you will get a person, not a form. We will tell you exactly which public URLs this profile was built from so your team can see the same surface we did, and we will take the listing down on request while you work through it.
Full detail: Where this data comes from
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 FY2025 revenue, a $47.1 billion backlog, ~53,000 employees in 80 countries, and is headquartered in Chantilly, Virginia.
Investor Relations: https://investors.amentum.com (NYSE: AMTM)
APIs.yml: View APIs Index
- Type: Index
- Position: Consuming
- Access: 3rd-Party
Federal Services, Defense IT, National Security, Intelligence, Space Systems, Nuclear, Energy, Environmental Services, Engineering Services, Cyber, Digital Transformation, Government Contractor
No public APIs or developer portal have been identified for Amentum. The company delivers software, IT modernization, mission systems, and engineering work under contract through classified, CAC-gated, or program-specific portals. There is no public OpenAPI, REST API, SDK, or sandbox surface to profile.
- Mission Modernization & Sustainment — lifecycle engineering, operations, training, logistics, and sustainment across all warfighting domains
- Space Systems — prime contractor for NASA's Exploration Ground Systems Program at Kennedy Space Center (Artemis)
- Digital Transformation — IT modernization, cloud, software engineering, data platforms, managed services
- Sustainability & Environment — environmental remediation, climate resilience, hazardous waste, munitions response
- Advanced Energy Solutions — nuclear, clean energy, and energy infrastructure including Owner's Engineer for the UK's first Small Modular Reactors
- Data Analytics & Cyber — mission cyber, intelligence analytics, and AI/ML inherited from Jacobs' Cyber & Intelligence portfolio
U.S. Department of Defense (Army, Air Force, Navy & Marine Corps, SOCOM), the U.S. Intelligence Community, NASA, U.S. Department of Energy (LLNL, INL), U.S. Department of Homeland Security (USCIS biometrics at 130 locations), allied governments (UK MoD, Australia), and U.S. civilian customers (CAL FIRE).
- Sept 2024 — Reverse Morris Trust merger with Jacobs CMS and C&I closed; began trading as NYSE: AMTM
- FY2025 — Reported ~$14.4B revenue and $47.1B backlog; GAAP revenue up ~70% year-over-year driven by the merger
- $425M CAL FIRE contract — aerial firefighting operations support
- $406M UK SMR contract — Owner's Engineer role for the UK's first Small Modular Reactors (joint venture)
- Artemis II support — launch and recovery operations at Kennedy Space Center
- Amentum Technology, Inc. (formerly Jacobs Technology Inc.)
- Amentum Digital Infrastructure, Inc. (formerly Jacobs Telecommunications Inc.)
- Created: 2026-05-23
- Modified: 2026-05-23
FN: Kin Lane
Email: kin@apievangelist.com