FlowAccount

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.

FlowAccount publishes 19 APIs on the APIs.io network, including BatchImport API, BillingNote API, CashInvoice API, and 16 more. Tagged areas include Company, Accounting, Invoicing, Payroll, and Point-of-Sale.

The FlowAccount catalog on APIs.io includes 1 event-driven AsyncAPI specification.

FlowAccount’s developer surface includes documentation, getting-started guide, signup flow, pricing, engineering blog, support, changelog, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

52.9/100 developing ▬ flat Agent 24/100 agent aware saas Full breakdown ↓
scored 2026-09-06 · rubric v0.19.0

AccessSelf serve

1 APIs

Company Accounting Invoicing Payroll Point-of-Sale SME Finance Tax Thailand Bookkeeping

Kin Score

Kin Score How this is scored →
scored 2026-09-06 · rubric v0.19.0

Composite quality — 52.9/100 · developing

Contract Quality 14.4 / 25

Developer Ergonomics 14.6 / 20

Access Clarity 8.9 / 20

Operational Transparency 6.8 / 13

Contract Governance 0.5 / 12

Discoverability 7.6 / 10

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/flowaccount: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 19

Individual APIs this provider publishes, each with its own machine-readable definition.

Open Collections 20

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Scopes 1

OAuth scopes governing access to this provider's APIs.

Flowaccount Scopes

1 scope

1 scopes

SCOPES

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

AgentSkill

AgenticAccess

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 4

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

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
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
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: '0.23'
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
tags_raw:
- 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:
  - Batch Import
  tags_raw:
  - 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:
  - Product Category
  tags_raw:
  - 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:
  - Product Inventory
  tags_raw:
  - 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:
  - Product
  tags_raw:
  - 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:
  - Purchase Order
  tags_raw:
  - 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: Overlay
  url: overlays/flowaccount-openapi-overlay.yaml
- 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: X-MCPServerCandidate
  url: mcp/flowaccount-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- 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

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/flowaccount"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/flowaccount/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/flowaccount/evidence"

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A second provider on the same verified email joins the account you already have.