Sublime Systems is a Somerville, Massachusetts cement manufacturer spun out of MIT that makes Sublime Cement, a low-carbon replacement for ordinary portland cement. Its ambient-temperature electrochemical "refinery for rocks" process extracts reactive calcium and silicates from low-value rocks and industrial byproducts and blends them into an ASTM-compliant cement that drops into existing concrete mix designs and equipment. The company sells through general-contractor distribution partners and publishes no developer program, API, SDK or machine-readable contract of any kind.
Sublime Systems is profiled on the APIs.io network. Tagged areas include Company, Cement, Construction Materials, Climate Tech, and Decarbonization.
Sublime Systems’ developer surface includes engineering blog and 8 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) 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.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
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/.
aid: sublime-systems
name: Sublime Systems
description: Sublime Systems is a Somerville, Massachusetts cement manufacturer spun out of MIT that makes Sublime Cement,
a low-carbon replacement for ordinary portland cement. Its ambient-temperature electrochemical "refinery for rocks" process
extracts reactive calcium and silicates from low-value rocks and industrial byproducts and blends them into an ASTM-compliant
cement that drops into existing concrete mix designs and equipment. The company sells through general-contractor distribution
partners and publishes no developer program, API, SDK or machine-readable contract of any kind.
url: https://raw.githubusercontent.com/api-evangelist/sublime-systems/refs/heads/main/apis.yml
image: https://sublime-systems.com/wp-content/uploads/2025/05/image-3.jpg
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-09-18'
modified: '2026-09-18'
tags:
- Company
- Cement
- Construction Materials
- Climate Tech
- Decarbonization
- Manufacturing
- Electrochemistry
apis: []
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
common:
- type: Website
url: https://sublime-systems.com
- type: Blog
url: https://sublime-systems.com/news/
- type: BlogRSS
url: https://sublime-systems.com/feed/
- type: PrivacyPolicy
url: https://sublime-systems.com/privacy-policy/
- type: Contact
url: https://sublime-systems.com/build/
- type: LinkedIn
url: https://www.linkedin.com/company/sublime-cement/
- type: Careers
url: https://jobs.lever.co/SublimeSystems
- type: SecondaryMarket
url: https://www.hiive.com/securities/sublime-systems-stock
- type: DomainSecurity
url: security/sublime-systems-domain-security.yml
x-enrichment:
date: '2026-09-18'
status: minimal
artifacts_added: 2
pass: local-v3
x-coverage:
state: none
reason: not-a-software-company
detail: Sublime Systems manufactures low-carbon cement sold through general-contractor distribution partners; sublime-systems.com
is a WordPress marketing site with no developer section, and every OpenAPI, GraphQL, llms.txt, agent-card and /.well-known/
path probed on it returned 404.
evidence:
- url: https://sublime-systems.com/
status: 200
- url: https://sublime-systems.com/developers
status: 404
- url: https://sublime-systems.com/openapi.json
status: 404
- url: https://sublime-systems.com/.well-known/agent-card.json
status: 404
- url: https://sublime-systems.com/.well-known/security.txt
status: 404
checked: '2026-09-18'
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