Comfort Systems USA

Comfort Systems USA (NYSE: FIX) is a Houston-based mechanical, electrical and plumbing contractor — one of the largest in the United States — that installs, services and maintains HVAC, piping, electrical and building-automation systems for commercial, industrial and institutional buildings through more than 45 operating companies in over 170 locations. Its business lines are construction (engineering and design, prefabrication, virtual construction), modular and off-site construction, building services (maintenance, on-demand and retrofit) and building automation (controls, monitoring, security and energy management). The company publishes no public API, developer program, SDK or machine-readable contract; its web presence is a WordPress marketing site and an investor-relations site.

Comfort Systems USA is profiled on the APIs.io network. Tagged areas include HVAC, Mechanical, Construction, Electrical, and Plumbing.

🌐 Visit website 📡 Source on GitHub

5.8/100 minimal ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

0 APIs

HVACMechanicalConstruction Electrical Plumbing Building Automation Modular ConstructionBuilding ServicesEnergy Management Fortune 1000

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 5.8/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 1.3 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 1.2 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities 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/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/comfort-systems-usa: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Pricing Plans 1

Published pricing tiers and plan structures.

Comfort Systems Usa Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Comfort Systems Usa Rate Limits

0 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Comfort Systems Usa Finops

FINOPS

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Comfort Systems Usa Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnownProbe

WellKnownProbe

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

ContactUs

ContactUs

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 7

The organization behind the API

Website

Website

About

About

Careers

Careers

InvestorRelations

InvestorRelations

Newsroom

Newsroom

LinkedIn

Facebook

Facebook

Scroll for all 7

Other 6

Properties that don't map to a standard resource type

Leadership

Leadership

BoardOfDirectors

BoardOfDirectors

Sustainability

Sustainability

DataSubjectRequest

DataSubjectRequest

SECFilings

SECFilings

RegulatoryPosture

RegulatoryPosture

Source (apis.yml)

aid: comfort-systems-usa
url: https://raw.githubusercontent.com/api-evangelist/comfort-systems-usa/refs/heads/main/apis.yml
name: Comfort Systems USA
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/comfort-systems-usa.png
tags:
- HVAC
- Mechanical
- Construction
- Electrical
- Plumbing
- Building Automation
- Modular Construction
- Building Services
- Energy Management
- Fortune 1000
description: 'Comfort Systems USA (NYSE: FIX) is a Houston-based mechanical, electrical and plumbing contractor — one of the
  largest in the United States — that installs, services and maintains HVAC, piping, electrical and building-automation systems
  for commercial, industrial and institutional buildings through more than 45 operating companies in over 170 locations. Its
  business lines are construction (engineering and design, prefabrication, virtual construction), modular and off-site construction,
  building services (maintenance, on-demand and retrofit) and building automation (controls, monitoring, security and energy
  management). The company publishes no public API, developer program, SDK or machine-readable contract; its web presence
  is a WordPress marketing site and an investor-relations site.'
created: '2026-04-19'
modified: '2026-09-19'
specificationVersion: '0.23'
apis: []
common:
- type: Website
  url: https://www.comfortsystemsusa.com
  x-note: live probe answers HTTP 202 SiteGround sgcaptcha bot challenge to our crawler; page exists (Wayback 2026-06-24,
    DNS resolves, TLS valid) — an edge policy, not a dead pointer
- type: About
  url: https://comfortsystemsusa.com/company-profile/
  x-note: live 202 sgcaptcha challenge; confirmed via Wayback capture 2026-05-28
- type: Leadership
  url: https://comfortsystemsusa.com/management-team/
  x-note: live 202 sgcaptcha challenge; confirmed via Wayback capture 2026-05-28
- type: BoardOfDirectors
  url: https://comfortsystemsusa.com/board-of-directors/
  x-note: live 202 sgcaptcha challenge; confirmed via Wayback capture 2026-06-12
- type: Careers
  url: https://comfortsystemsusa.com/careers/
  x-note: live 202 sgcaptcha challenge; confirmed via Wayback capture 2026-05-28
- type: ContactUs
  url: https://comfortsystemsusa.com/contact-us/
  x-note: live 202 sgcaptcha challenge; confirmed via Wayback capture 2026-06-12
- type: Sustainability
  url: https://comfortsystemsusa.com/sustainability/
  x-note: live 202 sgcaptcha challenge; confirmed via Wayback capture 2026-06-12; links 2025 Sustainability Report, Code of
    Conduct and supplier policies
- type: PrivacyPolicy
  url: https://comfortsystemsusa.com/privacy-policy/
  x-note: live 202 sgcaptcha challenge; confirmed via Wayback capture 2026-06-12; the only legal page the site publishes —
    no terms of use exists
- type: DataSubjectRequest
  url: https://comfortsystemsusa.com/privacy-policy/
  x-note: email channel (information@comfortsystemsusa.com) for access, correction and deletion requests, stated in the privacy
    policy — harvest record in regulatory/
- type: InvestorRelations
  url: https://investors.comfortsystemsusa.com/
  x-note: live probe answers Akamai 403 Access Denied to our crawler on every path; Notified IR site confirmed via Wayback
    capture 2026-01-08
- type: Newsroom
  url: https://investors.comfortsystemsusa.com/news-releases
  x-note: live Akamai 403 to our crawler; press-release index confirmed via Wayback capture 2025-12-19
- type: SECFilings
  url: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001035983
  x-note: EDGAR CIK 0001035983, COMFORT SYSTEMS USA INC, ticker FIX, large accelerated filer; data.sec.gov submissions probed
    200
- type: LinkedIn
  url: https://www.linkedin.com/company/comfort-systems-usa
- type: Facebook
  url: https://www.facebook.com/ComfortSystemsUsa
  x-note: linked from the site footer (Wayback 2026-06-24); not probed live
- type: DomainSecurity
  url: security/comfort-systems-usa-domain-security.yml
- type: WellKnownProbe
  url: well-known/comfort-systems-usa-well-known.yml
  x-note: probe record only — no /.well-known/ document is served on any host, so no WellKnown pointer is emitted
- type: RegulatoryPosture
  url: regulatory/comfort-systems-usa-regulatory-posture.yml
  x-note: one harvested signal (data_subject_request); every conventional path answers the sgcaptcha challenge
- type: Plans
  url: plans/comfort-systems-usa-plans-pricing.yml
  x-note: plan_count 0 — no API, no API pricing
- type: RateLimits
  url: rate-limits/comfort-systems-usa-rate-limits.yml
  x-note: limit_count 0 — no API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-09-19'
  status: minimal
  artifacts_added: 2
  pass: local-v3
x-coverage:
  state: none
  reason: not-a-software-company
  detail: 'Comfort Systems USA is an HVAC, electrical and plumbing contractor (NYSE: FIX, SIC 1731 Electrical Work) whose
    only web surfaces are a SiteGround-hosted WordPress marketing site and a Notified investor-relations site with no developer,
    API, integration or partner page anywhere in their navigation; the api.comfortsystemsusa.com and developer.comfortsystemsusa.com
    hosts the prior scaffolded API entry named do not exist in DNS (NXDOMAIN), and every path on comfortsystemsusa.com — including
    /openapi.json, /llms.txt and every /.well-known/ document — answers a 202 sgcaptcha bot-challenge shell rather than a
    document.'
  evidence:
  - url: https://api.comfortsystemsusa.com/
    status: 0
  - url: https://developer.comfortsystemsusa.com/docs
    status: 0
  - url: https://www.comfortsystemsusa.com/openapi.json
    status: 202
  - url: https://www.comfortsystemsusa.com/llms.txt
    status: 202
  - url: https://www.comfortsystemsusa.com/.well-known/agent-card.json
    status: 202
  - url: https://investors.comfortsystemsusa.com/
    status: 403
  - url: https://api.github.com/orgs/comfort-systems-usa
    status: 200
  - url: https://pypi.org/pypi/comfortsystemsusa/json
    status: 404
  checked: '2026-09-19'

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