aid: flowaccount
name: FlowAccount
description: >-
  FlowAccount is a Thai cloud accounting platform serving 130,000+ SMEs, 17,000+
  accountants and admins, and 5,900+ accounting firms. Its products cover online
  accounting (quotations, invoices, tax invoices, receipts, expenses), MobilePOS
  point-of-sale, Payroll with bank integration, and AutoKey document capture. The
  FlowAccount Open API is an OAuth 2.0 (client-credentials) REST API of 153
  operations across sandbox and production environments, letting integrations
  create and manage sales/purchase documents, contacts, and products, receive
  webhook event callbacks, and sync POS transactions. First-party SDKs are
  published for JavaScript/TypeScript, Java, PHP, .NET, and Go.
url: https://raw.githubusercontent.com/api-evangelist/flowaccount/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
image: https://flowaccountcdn.com/favicon/landing/FlowAccount.png
tags:
- Company
- Accounting
- Invoicing
- Payroll
- Point of Sale
- SME
- Finance
- Tax
- Thailand
- Bookkeeping
apis:
- aid: flowaccount:flowaccount-batchimport-api
  name: FlowAccount BatchImport API
  description: The BatchImport API from FlowAccount — 10 operation(s) for batchimport.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - BatchImport
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-batchimport-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-billingnote-api
  name: FlowAccount BillingNote API
  description: The BillingNote API from FlowAccount — 8 operation(s) for billingnote.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - BillingNote
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-billingnote-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-cashinvoice-api
  name: FlowAccount CashInvoice API
  description: The CashInvoice API from FlowAccount — 8 operation(s) for cashinvoice.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - CashInvoice
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-cashinvoice-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-companycurrency-api
  name: FlowAccount CompanyCurrency API
  description: The CompanyCurrency API from FlowAccount — 2 operation(s) for companycurrency.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - CompanyCurrency
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-companycurrency-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-contact-api
  name: FlowAccount Contact API
  description: The Contact API from FlowAccount — 4 operation(s) for contact.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Contact
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-contact-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-creditnote-api
  name: FlowAccount CreditNote API
  description: The CreditNote API from FlowAccount — 9 operation(s) for creditnote.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - CreditNote
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-creditnote-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-debitnote-api
  name: FlowAccount DebitNote API
  description: The DebitNote API from FlowAccount — 9 operation(s) for debitnote.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - DebitNote
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-debitnote-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-employee-api
  name: FlowAccount Employee API
  description: The Employee API from FlowAccount — 3 operation(s) for employee.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Employee
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-employee-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-expense-api
  name: FlowAccount Expense API
  description: The Expense API from FlowAccount — 12 operation(s) for expense.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Expense
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-expense-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-productcategory-api
  name: FlowAccount ProductCategory API
  description: The ProductCategory API from FlowAccount — 2 operation(s) for productcategory.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - ProductCategory
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-productcategory-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-productinventory-api
  name: FlowAccount ProductInventory API
  description: The ProductInventory API from FlowAccount — 2 operation(s) for productinventory.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - ProductInventory
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-productinventory-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-products-api
  name: FlowAccount Products API
  description: The Products API from FlowAccount — 3 operation(s) for products.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-products-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-productunit-api
  name: FlowAccount ProductUnit API
  description: The ProductUnit API from FlowAccount — 2 operation(s) for productunit.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - ProductUnit
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-productunit-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-purchase-api
  name: FlowAccount Purchase API
  description: The Purchase API from FlowAccount — 8 operation(s) for purchase.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Purchase
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-purchase-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-purchaseorder-api
  name: FlowAccount PurchaseOrder API
  description: The PurchaseOrder API from FlowAccount — 8 operation(s) for purchaseorder.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - PurchaseOrder
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-purchaseorder-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-quotation-api
  name: FlowAccount Quotation API
  description: The Quotation API from FlowAccount — 10 operation(s) for quotation.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Quotation
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-quotation-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-receipt-api
  name: FlowAccount Receipt API
  description: The Receipt API from FlowAccount — 10 operation(s) for receipt.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Receipt
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-receipt-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-receivableinvoice-api
  name: FlowAccount ReceivableInvoice API
  description: The ReceivableInvoice API from FlowAccount — 8 operation(s) for receivableinvoice.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - ReceivableInvoice
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-receivableinvoice-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
- aid: flowaccount:flowaccount-taxinvoice-api
  name: FlowAccount TaxInvoice API
  description: The TaxInvoice API from FlowAccount — 9 operation(s) for taxinvoice.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - TaxInvoice
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-taxinvoice-api-openapi.yml
  - type: APIReference
    url: https://developers.flowaccount.com/
  - type: Authentication
    url: authentication/flowaccount-authentication.yml
  - type: OAuthScopes
    url: scopes/flowaccount-scopes.yml
  - type: Conventions
    url: conventions/flowaccount-conventions.yml
  - type: Sandbox
    url: sandbox/flowaccount-sandbox.yml
  - type: Webhooks
    url: asyncapi/flowaccount-webhooks.yml
  - type: DataModel
    url: data-model/flowaccount-data-model.yml
  - type: Conformance
    url: conformance/flowaccount-conformance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://flowaccount.com
- type: DeveloperPortal
  url: https://developers.flowaccount.com/
- type: Documentation
  url: https://developers.flowaccount.com/
- type: GettingStarted
  url: https://form.flowaccount.com/request-openapi
- type: SignUp
  url: https://auth.flowaccount.com/th/Account/Register
- type: Login
  url: https://auth.flowaccount.com
- type: Pricing
  url: https://flowaccount.com/pricing
- type: Blog
  url: https://flowaccount.com/blog/
- type: Support
  url: https://flowaccount.com/help-center
- type: TermsOfService
  url: https://flowaccount.com/term-of-use
- type: PrivacyPolicy
  url: https://flowaccount.com/privacy-statement
- type: GitHubOrganization
  url: https://github.com/flowaccount
- type: StatusPage
  url: https://flowaccount.statuspage.io
- type: Lifecycle
  url: lifecycle/flowaccount-lifecycle.yml
- type: ChangeLog
  url: https://developers.flowaccount.com/
- type: Packages
  url: packages/flowaccount-packages.yml
- type: SDKs
  url: packages/flowaccount-packages.yml
- type: MCPServer
  url: mcp/flowaccount-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: AgenticAccess
  url: agentic-access/flowaccount-agentic-access.yml
- type: Authentication
  url: authentication/flowaccount-authentication.yml
- type: LLMsTxt
  url: llms/flowaccount-llms.txt
- type: DomainSecurity
  url: security/flowaccount-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/flowaccount-vulnerability-disclosure.yml
- type: Security
  url: security/flowaccount-vulnerability-disclosure.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence