openapi: 3.0.3 info: title: Simpro REST Companies Webhooks API description: 'The Simpro (simPRO) REST API v1.0 provides a RESTful interface to view, create, and modify resources on a Simpro Premium build - the field service, trade, and project management platform. The API is hosted on each customer''s own build, so the host is per-build (for example https://your-build.simprosuite.com) and requests are authenticated with an OAuth2 Bearer access token issued by that same build''s /oauth2/token endpoint. Most resources are nested under a company: /api/v1.0/companies/{companyID}/... where companyID is 0 on single-company builds. This document models a representative, commonly used subset of the API - companies, customers, sites, jobs, quotes, invoices, schedules, vendor orders, cost centers, stock, and webhook subscriptions. The full published API covers 300+ resource types. Endpoint paths, HTTP methods, the common list/search query parameters, and the confirmed list/read response fields are grounded in Simpro''s published API reference; request bodies for create/update are modeled minimally and marked as such, because the real payloads are large and build-configuration dependent.' version: '1.0' contact: name: Simpro Developer Center url: https://developer.simprogroup.com/ x-access-model: Not a shared public API. Access requires an existing Simpro Premium subscription and API access enabled on that build; OAuth2 client credentials are provisioned per build by the account administrator. Base host is the customer's own build subdomain, not a single global endpoint. servers: - url: https://{build}.simprosuite.com/api/v1.0 description: Per-build Simpro Premium host. Replace {build} with your build subdomain. variables: build: default: your-build description: Your Simpro Premium build subdomain - the same domain you use to log in to the Simpro staff portal (e.g. mycompany in mycompany.simprosuite.com). security: - oauth2: [] tags: - name: Webhooks description: Webhook subscriptions for build event notifications. paths: /companies/{companyID}/setup/webhooks/: parameters: - $ref: '#/components/parameters/CompanyID' get: operationId: listWebhooks tags: - Webhooks summary: List all webhook subscriptions responses: '200': description: A list of webhook subscriptions. content: application/json: schema: type: array items: $ref: '#/components/schemas/WebhookListItem' '401': $ref: '#/components/responses/Unauthorized' post: operationId: createWebhook tags: - Webhooks summary: Create a webhook subscription description: Subscribes an HTTPS callback URL to build events. NOTE - request body is modeled minimally; see the Simpro API reference for the full schema. requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/WebhookInput' responses: '201': description: The created webhook subscription. content: application/json: schema: $ref: '#/components/schemas/WebhookListItem' '401': $ref: '#/components/responses/Unauthorized' '400': $ref: '#/components/responses/BadRequest' /companies/{companyID}/setup/webhooks/{webhookID}: parameters: - $ref: '#/components/parameters/CompanyID' - $ref: '#/components/parameters/WebhookID' get: operationId: getWebhook tags: - Webhooks summary: Retrieve a webhook subscription responses: '200': description: The requested webhook subscription. content: application/json: schema: $ref: '#/components/schemas/WebhookListItem' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' patch: operationId: updateWebhook tags: - Webhooks summary: Update a webhook subscription description: NOTE - request body is modeled minimally; see the Simpro API reference. requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/WebhookInput' responses: '200': description: The updated webhook subscription. content: application/json: schema: $ref: '#/components/schemas/WebhookListItem' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' delete: operationId: deleteWebhook tags: - Webhooks summary: Delete a webhook subscription responses: '204': description: The webhook subscription was deleted. '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' components: schemas: WebhookInput: type: object description: Modeled minimal create/update body for a webhook subscription. properties: Reference: type: string CallbackURL: type: string format: uri Events: type: array items: type: string WebhookListItem: type: object description: Modeled from the webhook subscriptions resource. Verify field names against the Simpro API reference. properties: ID: type: integer Reference: type: string CallbackURL: type: string format: uri Error: type: object description: Modeled error envelope. Verify the exact shape against the Simpro API reference. properties: errors: type: array items: type: object properties: message: type: string key: type: string responses: Unauthorized: description: Missing or invalid OAuth2 Bearer token. content: application/json: schema: $ref: '#/components/schemas/Error' BadRequest: description: The request payload failed validation. content: application/json: schema: $ref: '#/components/schemas/Error' NotFound: description: The requested resource was not found. content: application/json: schema: $ref: '#/components/schemas/Error' parameters: WebhookID: name: webhookID in: path required: true description: The webhook subscription's ID. schema: type: integer CompanyID: name: companyID in: path required: true description: The company ID. A build with Multi-company setup may have companyID >= 0; other builds use 0 by default. schema: type: integer default: 0 securitySchemes: oauth2: type: oauth2 description: 'OAuth2 issued by the customer''s own Simpro build. Access tokens are obtained from https://{build}.simprosuite.com/oauth2/token and sent as `Authorization: Bearer ACCESS_TOKEN`. Both the client credentials and authorization code grants are supported depending on how the API application is registered on the build.' flows: clientCredentials: tokenUrl: https://your-build.simprosuite.com/oauth2/token scopes: {} authorizationCode: authorizationUrl: https://your-build.simprosuite.com/oauth2/authorize tokenUrl: https://your-build.simprosuite.com/oauth2/token scopes: {}