Siteline

Siteline is billing and accounts receivable software built specifically for commercial subcontractors (trade contractors). It centralizes pay applications (including AIA G702/G703 progress billing), lien waivers, lien rights, compliance documents, change orders, collections, and A/R reporting in one workflow, replacing the spreadsheets, PDFs, and GC payment-portal logins that AP/AR teams juggle every month. Siteline integrates with construction accounting systems (Sage, Foundation, Viewpoint/Vista, Spectrum, QuickBooks, Acumatica, Sage Intacct, NetSuite, CMiC, and others) and with GC payment portals (Textura, GCPay, Procore Pay) so billing data flows without double entry. Founded in 2019 by Claire Wilson and Gloria Lin, backed by Menlo Ventures and First Round Capital; subcontractors have billed over $10B across 200,000+ projects on the platform. Siteline publishes no public developer API — integrations are managed connections rather than a self-serve API.

Siteline is profiled on the APIs.io network. Tagged areas include Company, Construction, Billing, Payments, and Accounts Receivable.

Siteline’s developer surface includes engineering blog, pricing, signup flow, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
20.0/100 emerging ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyConstructionBillingPaymentsAccounts ReceivableSubcontractorsLien WaiversComplianceConstruction FintechSaaS

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 20.0/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 2.1 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 4/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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 4 / 4
Consent & Bot Identity 0 / 3
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/siteline: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Siteline Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp
SignUp

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle
Lifecycle

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage
StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: siteline
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/siteline.png
name: Siteline
description: Siteline is billing and accounts receivable software built specifically for commercial subcontractors (trade
  contractors). It centralizes pay applications (including AIA G702/G703 progress billing), lien waivers, lien rights, compliance
  documents, change orders, collections, and A/R reporting in one workflow, replacing the spreadsheets, PDFs, and GC payment-portal
  logins that AP/AR teams juggle every month. Siteline integrates with construction accounting systems (Sage, Foundation,
  Viewpoint/Vista, Spectrum, QuickBooks, Acumatica, Sage Intacct, NetSuite, CMiC, and others) and with GC payment portals
  (Textura, GCPay, Procore Pay) so billing data flows without double entry. Founded in 2019 by Claire Wilson and Gloria Lin,
  backed by Menlo Ventures and First Round Capital; subcontractors have billed over $10B across 200,000+ projects on the platform.
  Siteline publishes no public developer API — integrations are managed connections rather than a self-serve API.
url: https://raw.githubusercontent.com/api-evangelist/siteline/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- menlo-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Construction
- Billing
- Payments
- Accounts Receivable
- Subcontractors
- Lien Waivers
- Compliance
- Construction Fintech
- SaaS
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://siteline.com
- type: Blog
  url: https://www.siteline.com/blog
- type: Pricing
  url: https://www.siteline.com/pricing
- type: SignUp
  url: https://app.siteline.com/
- type: TermsOfService
  url: https://www.siteline.com/terms
- type: PrivacyPolicy
  url: https://www.siteline.com/privacy
- type: StatusPage
  url: https://status.siteline.com
- type: LLMsTxt
  url: llms/siteline-llms.txt
- type: WellKnown
  url: well-known/siteline-well-known.yml
- type: Lifecycle
  url: lifecycle/siteline-lifecycle.yml
- type: DomainSecurity
  url: security/siteline-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 4
  pass: local-v1