openapi: 3.0.3 info: title: Puzzle Accounting Accounts Companies API description: 'RESTful, JSON API for Puzzle''s real-time financial data hub and general ledger. Puzzle builds a continuously reconciled general ledger on top of a company''s connected Stripe, bank, card, and payroll data and exposes the resulting transactions, ledger accounts, journal entries, financial statements, and startup metrics over HTTPS. ACCURACY NOTE (API Evangelist, 2026-07-01): The Puzzle API is real, documented, and RESTful, but is in an active-development, partner-gated rollout. Full endpoint schemas are behind a partner login, so this specification models the confirmed base URL, security scheme, and resource surfaces. The confirmed endpoint pattern is `GET /rest/v0/company/{id}/transactions`; every resource is nested under `/rest/v0/company/{id}`. Paths marked with `x-puzzle-unverified: true` follow the documented resource sections and this confirmed pattern but the exact operation paths were not individually verified against the gated reference. Verify against https://puzzle-api.readme.io/reference before production use.' version: 0.19.0 termsOfService: https://puzzle.io/terms contact: name: Puzzle API Support email: support@puzzle.io url: https://puzzle-api.readme.io/docs/welcome servers: - url: https://staging.southparkdata.com description: Documented Puzzle API server (Puzzle's underlying data platform is named South Park Data). Confirmed from the public API reference. security: - oauth2: [] - apiKey: [] tags: - name: Companies description: Companies connected to a Puzzle partner account. paths: /rest/v0/companies: get: operationId: listCompanies tags: - Companies summary: List companies description: List the companies accessible to the authenticated partner. Returned company IDs scope all other endpoints. x-puzzle-unverified: true responses: '200': description: A list of companies. content: application/json: schema: type: array items: $ref: '#/components/schemas/Company' '401': $ref: '#/components/responses/Unauthorized' /rest/v0/company/{id}: get: operationId: getCompany tags: - Companies summary: Get a company description: Retrieve a single company and its accounting configuration. x-puzzle-unverified: true parameters: - $ref: '#/components/parameters/CompanyId' responses: '200': description: A company. content: application/json: schema: $ref: '#/components/schemas/Company' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' components: parameters: CompanyId: name: id in: path required: true description: The company ID. schema: type: string responses: Unauthorized: description: Missing or invalid credentials. content: application/json: schema: $ref: '#/components/schemas/Error' NotFound: description: The requested resource does not exist or is not accessible. content: application/json: schema: $ref: '#/components/schemas/Error' schemas: Error: type: object properties: error: type: string message: type: string Company: type: object properties: id: type: string name: type: string basis: type: string enum: - cash - accrual fiscalYearStart: type: string securitySchemes: oauth2: type: oauth2 description: OAuth 2.0 with scoped access (for example read:company, read:transactions, read:report). Partner credentials are issued after the Puzzle partner technical review. flows: clientCredentials: tokenUrl: https://puzzle-api.readme.io/reference scopes: read:company: Read company data read:transactions: Read transactions read:accounts: Read ledger accounts read:report: Read financial statements apiKey: type: apiKey in: header name: Authorization description: API key authentication via the Authorization header, as described in the Puzzle developer docs.