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

24.0/100 emerging ▬ flat Agent 25/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessPaidSelf serve

1 APIs

Field Service Management Trades Job Management Project Management Scheduling Inventory Estimating Workforce Software-as-a-Service Contractors

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 24.0/100 · emerging

Contract Quality 3.0 / 23

Developer Ergonomics 3.4 / 18

Access Clarity 7.1 / 18

Operational Transparency 2.5 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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/simpro: 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 →

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 13

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

API Collection

OPEN COLLECTION

Simpro REST Companies API

OPEN COLLECTION

Simpro REST Companies Cost Centers API

OPEN COLLECTION

Simpro REST Companies Customers API

OPEN COLLECTION

Simpro REST Companies Invoices API

OPEN COLLECTION

Simpro REST Companies Jobs API

OPEN COLLECTION

Simpro REST Companies Quotes API

OPEN COLLECTION

Simpro REST Companies Schedules API

OPEN COLLECTION

Simpro REST Companies Sites API

OPEN COLLECTION

Simpro REST Companies Stock API

OPEN COLLECTION

Simpro REST Companies Vendor Orders API

OPEN COLLECTION

Simpro REST Companies Webhooks API

OPEN COLLECTION

Simpro REST API

OPEN COLLECTION

Scroll for all 13

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

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

Website

Website

Source (apis.yml)

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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
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
- Software-as-a-Service
- Contractors
tags_raw:
- Field Service Management
- Trades
- Job Management
- Project Management
- Scheduling
- Inventory
- Estimating
- Workforce
- SaaS
- Contractors
created: '2026-07-12'
modified: '2026-07-12'
specificationVersion: '0.23'
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:
  - Job
  tags_raw:
  - 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:
  - Webhook
  tags_raw:
  - 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

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