Simpro

Simpro (simPRO) is field service management and project/business management software for the trades - electrical, plumbing, HVAC, security, fire, and other contractors. It covers the full workflow of estimating, quoting, job management, scheduling and dispatch, asset maintenance, inventory and catalog, purchasing, timesheets, and invoicing. The Simpro REST API v1.0 exposes these resources over HTTPS, but it is not a shared public API - each API runs on the customer's own Simpro Premium build (host https://your-build.simprosuite.com) and is authenticated with OAuth2 credentials provisioned by that build's administrator. Resources are nested under a company at /api/v1.0/companies/{companyID}/... where companyID is 0 on single-company builds.

Simpro publishes 11 APIs on the APIs.io network, including Companies API, Cost Centers API, Customers API, and 8 more. Tagged areas include Field Service Management, Trades, Job Management, Project Management, and Scheduling.

Simpro’s developer surface includes authentication, documentation, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
38.0/100 thin ▬ flat Agent 48/100 agent ready Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessPaidSelf serve
11 APIs
Field Service ManagementTradesJob ManagementProject ManagementSchedulingInventoryEstimatingWorkforceSaaSContractors

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 38.0/100 · thin
Contract Quality 13.4 / 25
Developer Ergonomics 3.9 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 2.7 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 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
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/simpro: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 11

Individual APIs this provider publishes, each with its own machine-readable definition.

Simpro Companies API

Company information on the build (multi-company aware).

Simpro Cost Centers API

Accounting cost center setup.

Simpro Customers API

Company and individual customers that receive invoices.

Simpro Invoices API

Customer invoicing.

Simpro Jobs API

Job lifecycle - scheduling, stock, assets, forms, and billing.

Simpro Quotes API

Quote creation and management.

Simpro Schedules API

Resource and staff scheduling records.

Simpro Sites API

Customer sites and service locations.

Simpro Stock API

Inventory held on storage devices.

Simpro Vendor Orders API

Purchase orders raised to vendors/suppliers.

Simpro Webhooks API

Webhook subscriptions for build event notifications.

Scroll for all 11

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Simpro REST API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Simpro Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Simpro Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Simpro Finops

FINOPS

Security Posture 2

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

Simpro Authentication

oauth2 · 1 scheme

SECURITY

Simpro Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Simpro Agentic Access

52 operations · 27 acting

52 operations · 27 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: simpro
url: https://raw.githubusercontent.com/api-evangelist/simpro/refs/heads/main/apis.yml
name: Simpro
kind: company
description: Simpro (simPRO) is field service management and project/business management software for the trades - electrical,
  plumbing, HVAC, security, fire, and other contractors. It covers the full workflow of estimating, quoting, job management,
  scheduling and dispatch, asset maintenance, inventory and catalog, purchasing, timesheets, and invoicing. The Simpro REST
  API v1.0 exposes these resources over HTTPS, but it is not a shared public API - each API runs on the customer's own Simpro
  Premium build (host https://your-build.simprosuite.com) and is authenticated with OAuth2 credentials provisioned by that
  build's administrator. Resources are nested under a company at /api/v1.0/companies/{companyID}/... where companyID is 0
  on single-company builds.
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/simpro.png
tags:
- Field Service Management
- Trades
- Job Management
- Project Management
- Scheduling
- Inventory
- Estimating
- Workforce
- SaaS
- Contractors
created: '2026-07-12'
modified: '2026-07-12'
specificationVersion: '0.19'
apis:
- aid: simpro:simpro-companies-api
  name: Simpro Companies API
  description: Company information on the build (multi-company aware).
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Companies
  properties:
  - type: OpenAPI
    url: openapi/simpro-companies-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
- aid: simpro:simpro-cost-centers-api
  name: Simpro Cost Centers API
  description: Accounting cost center setup.
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Cost Centers
  properties:
  - type: OpenAPI
    url: openapi/simpro-cost-centers-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
- aid: simpro:simpro-customers-api
  name: Simpro Customers API
  description: Company and individual customers that receive invoices.
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Customers
  properties:
  - type: OpenAPI
    url: openapi/simpro-customers-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
- aid: simpro:simpro-invoices-api
  name: Simpro Invoices API
  description: Customer invoicing.
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Invoices
  properties:
  - type: OpenAPI
    url: openapi/simpro-invoices-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
- aid: simpro:simpro-jobs-api
  name: Simpro Jobs API
  description: Job lifecycle - scheduling, stock, assets, forms, and billing.
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Jobs
  properties:
  - type: OpenAPI
    url: openapi/simpro-jobs-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
- aid: simpro:simpro-quotes-api
  name: Simpro Quotes API
  description: Quote creation and management.
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Quotes
  properties:
  - type: OpenAPI
    url: openapi/simpro-quotes-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
- aid: simpro:simpro-schedules-api
  name: Simpro Schedules API
  description: Resource and staff scheduling records.
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Schedules
  properties:
  - type: OpenAPI
    url: openapi/simpro-schedules-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
- aid: simpro:simpro-sites-api
  name: Simpro Sites API
  description: Customer sites and service locations.
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Sites
  properties:
  - type: OpenAPI
    url: openapi/simpro-sites-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
- aid: simpro:simpro-stock-api
  name: Simpro Stock API
  description: Inventory held on storage devices.
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Stock
  properties:
  - type: OpenAPI
    url: openapi/simpro-stock-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
- aid: simpro:simpro-vendor-orders-api
  name: Simpro Vendor Orders API
  description: Purchase orders raised to vendors/suppliers.
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Vendor Orders
  properties:
  - type: OpenAPI
    url: openapi/simpro-vendor-orders-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
- aid: simpro:simpro-webhooks-api
  name: Simpro Webhooks API
  description: Webhook subscriptions for build event notifications.
  humanURL: https://developer.simprogroup.com/apidoc/
  baseURL: https://{build}.simprosuite.com/api/v1.0
  tags:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/simpro-webhooks-api-openapi.yml
  - type: Documentation
    url: https://developer.simprogroup.com/
  - type: APIReference
    url: https://developer.simprogroup.com/apidoc/
common:
- type: AgenticAccess
  url: agentic-access/simpro-agentic-access.yml
- type: DomainSecurity
  url: security/simpro-domain-security.yml
- type: Authentication
  url: authentication/simpro-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/simpro-software
- type: Website
  url: https://www.simprogroup.com/
- type: Documentation
  url: https://developer.simprogroup.com/
- type: Plans
  url: plans/simpro-plans-pricing.yml
- type: RateLimits
  url: rate-limits/simpro-rate-limits.yml
- type: FinOps
  url: finops/simpro-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com