Build

Build is an AI-native operating partner for the built world, pairing autonomous AI agents (its "Dougie" platform) with deep domain expertise to accelerate commercial real estate and infrastructure development. The platform automates mission-critical development workflows including site selection, due diligence, underwriting, investment-committee memos, test-fit analysis, market and zoning research, environmental diligence, and ESG reporting. Build serves institutional clients across data centers, industrials, energy, power, office, telecommunications, mixed-use, hotels, and multifamily. Backed by Index Ventures; profiled in the API Evangelist network. Build is a services company and does not currently publish a public developer API.

Build is profiled on the APIs.io network. Tagged areas include Company, Business Applications, Artificial Intelligence, AI Agents, and Real-Estate.

Build’s developer surface includes engineering blog and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub

17.4/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

CompanyBusiness ApplicationsArtificial IntelligenceAI AgentsReal-EstateCommercial Real EstateInfrastructureConstructionESGDue Diligence

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 17.4/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 0.5 / 20

Access Clarity 8.7 / 20

Operational Transparency 1.4 / 13

Contract Governance 0.0 / 12

Discoverability 6.9 / 10

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 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 3 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/build: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

Login

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Access & Security 6

Authentication, authorization, and security posture

Security

Security

Compliance

Compliance

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

SecurityTxt

SecurityTxt

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Company

Company

Source (apis.yml)

aid: build
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/build.png
name: Build
description: Build is an AI-native operating partner for the built world, pairing autonomous AI agents (its "Dougie" platform)
  with deep domain expertise to accelerate commercial real estate and infrastructure development. The platform automates mission-critical
  development workflows including site selection, due diligence, underwriting, investment-committee memos, test-fit analysis,
  market and zoning research, environmental diligence, and ESG reporting. Build serves institutional clients across data centers,
  industrials, energy, power, office, telecommunications, mixed-use, hotels, and multifamily. Backed by Index Ventures; profiled
  in the API Evangelist network. Build is a services company and does not currently publish a public developer API.
url: https://raw.githubusercontent.com/api-evangelist/build/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- index-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Business Applications
- Artificial Intelligence
- AI Agents
- Real-Estate
- Commercial Real Estate
- Infrastructure
- Construction
- ESG
- Due Diligence
tags_raw:
- Company
- Business Applications
- Artificial Intelligence
- AI Agents
- Real Estate
- Commercial Real Estate
- Infrastructure
- Construction
- ESG
- Due Diligence
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.build.inc
- type: Company
  url: https://www.build.inc/company
- type: Blog
  url: https://www.build.inc/blog
- type: Login
  url: https://app.build.inc/login
- type: TermsOfService
  url: https://www.build.inc/terms
- type: PrivacyPolicy
  url: https://www.build.inc/privacy
- type: Security
  url: https://www.build.inc/security
- type: Compliance
  url: https://build.inc/trust
- type: TrustCenter
  url: security/build-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/build-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/build-domain-security.yml
- type: SecurityTxt
  url: well-known/build-security.txt
- type: WellKnown
  url: well-known/build-well-known.yml
- type: LLMsTxt
  url: llms/build-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Build

Kin Score

Security Posture 3

Build Domain Security

Build Vulnerability Disclosure

Build Trust Center

Resources