How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Simpro Companies API

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

Simpro Companies API is one of 11 APIs that Simpro publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Companies. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 2 operations across 2 paths, and defines 2 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against a single base URL, https://{build}.simprosuite.com/api/v1.0.

2 operations 2 paths 2 schemas 2 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://{build}.simprosuite.com/api/v1.0
Authentication
OAuth 2.0
Resource Areas
1

Authentication & Security 1

Simpro Companies API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (oauth2) using the clientCredentials and authorizationCode flows. By default, every request must be authenticated.

  • oauth2 — OAuth2 issued by the customer's own Simpro build. Access tokens are obtained from https://{build}.simprosuite.com/oauth2/token and sent as Authorization: Beare…

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 GET. Each is listed below with its method, path, parameters, and response codes.

Companies 2

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

GET
/companies/
List all companies
listCompanies 3 params → 200401
GET
/companies/{companyID}
Retrieve a company
getCompany 1 param → 200401404

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are CompanyListItem (2 properties), Error (1 property). Each schema is shown below with its type and property counts.

Error
object
Modeled error envelope. Verify the exact shape against the Simpro API reference.
1 property
CompanyListItem
object
Confirmed fields from the companies list response.
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

simpro-companies-api-openapi.yml Raw ↑

Other APIs Simpro publishes across the network.

Simpro Cost Centers API
Simpro Customers API
Simpro Invoices API
Simpro Jobs API
Simpro Quotes API
Simpro Schedules API
Simpro Sites API
Simpro Stock API
Simpro Vendor Orders API
Simpro Webhooks API
Where this information came from

This is an independent, third-party profile of Simpro Companies API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.