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Simpro Customers API

Company and individual customers that receive invoices.

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

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

This API exposes 11 operations across 5 paths, and defines 3 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.

11 operations 5 paths 3 schemas 2 DELETE5 GET2 PATCH2 POST

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 Customers 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 11

Across 5 paths, the API surfaces 11 operations — 2 DELETE, 5 GET, 2 PATCH, 2 POST. Each is listed below with its method, path, parameters, and response codes.

Customers 11

Company and individual customers that receive invoices.

GET
/companies/{companyID}/customers/
List all customers
listCustomers 7 params → 200401
GET
/companies/{companyID}/customers/companies/
List company customers
listCompanyCustomers 4 params → 200401
POST
/companies/{companyID}/customers/companies/
Create a company customer
createCompanyCustomer 1 param body → 201401400
GET
/companies/{companyID}/customers/companies/{customerID}
Retrieve a company customer
getCompanyCustomer 2 params → 200401404
PATCH
/companies/{companyID}/customers/companies/{customerID}
Update a company customer
updateCompanyCustomer 2 params body → 200401404
DELETE
/companies/{companyID}/customers/companies/{customerID}
Delete a company customer
deleteCompanyCustomer 2 params → 204401404
GET
/companies/{companyID}/customers/individuals/
List individual customers
listIndividualCustomers 4 params → 200401
POST
/companies/{companyID}/customers/individuals/
Create an individual customer
createIndividualCustomer 1 param body → 201401400
GET
/companies/{companyID}/customers/individuals/{customerID}
Retrieve an individual customer
getIndividualCustomer 2 params → 200401404
PATCH
/companies/{companyID}/customers/individuals/{customerID}
Update an individual customer
updateIndividualCustomer 2 params body → 200401404
DELETE
/companies/{companyID}/customers/individuals/{customerID}
Delete an individual customer
deleteIndividualCustomer 2 params → 204401404

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are CustomerListItem (5 properties), CustomerInput (3 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
CustomerListItem
object
Confirmed fields from the customers list response.
5 properties
CustomerInput
object
Modeled minimal create/update body. The real Simpro customer payload has many more fields (address, contacts, pricing, tax, custom fields).
3 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

simpro-customers-api-openapi.yml Raw ↑

Other APIs Simpro publishes across the network.

Simpro Companies API
Simpro Cost Centers 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 Customers 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.

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