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 API contracts indexed on the APIs.io network, including BillingNote API, CashInvoice API, CompanyCurrency 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 and 1 Spectral governance ruleset.

FlowAccount’s developer surface includes documentation, getting-started guide, signup flow, pricing, engineering blog, support, changelog, and 22 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

68.8/100 exemplar ▬ flat Agent 28/100 agent aware Front door AI 5/6 prominent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 3 Agent Skills

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

What this lets a business do 6

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Financial Management

BC-200

BillingNoteCashInvoiceCredit NoteDebitNoteExpensePurchase

POST /{culture}/billing-notes/{id}/payments POST /{culture}/cash-invoices/{id}/payments POST /{culture}/credit-notes/simple-document POST /{culture}/credit-notes/{id}/payments

Human Capital Management

BC-300

Employee

GET /Employee

Procurement Management

BC-500

Purchase Order

POST /{culture}/purchase-orders/simple-document POST /{culture}/purchase-orders/{documentId}/status-key/{statusKey}

Sales Management

BC-410

Quotation

POST /{culture}/quotations/simple-document

Customer Relationship Management

BC-420

Contact

GET /api/{culture}/contacts/search GET /api/{culture}/contacts POST /api/{culture}/contacts

Inventory Management

BC-530

Product Inventory

POST /{culture}/product-inventories/adjust

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 68.8/100 · exemplar

Contract Quality 10.1 / 19

Developer Ergonomics 11.0 / 15

Access Clarity 12.6 / 15

Operational Transparency 5.1 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 6.0 / 15

Create-or-Update Ergonomics 5.0 / 10

Agent readiness — 28/100 · 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Employment & Payroll regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/flowaccount/"><img src="https://apis.io/badge/flowaccount/card.svg" alt="FlowAccount on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 54.0 — up to +11.5 composite points
Contract Governance scores 18.2 — up to +9.8 composite points
Operational Transparency scores 52.6 — up to +6.2 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/flowaccount/apis.yml: open an issue on github.com/api-evangelist/flowaccount to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
E-invoicing and Tax Compliance (certified operators)	builds-on	17.2 (thin)	-	1
Accelerator Portfolios (Y Combinator, 500 Global, Antler participation)	builds-on	17.2 (thin)	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 19

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

FlowAccount BillingNote API

The BillingNote API from FlowAccount — 8 operation(s) for billingnote.

FlowAccount CashInvoice API

The CashInvoice API from FlowAccount — 8 operation(s) for cashinvoice.

FlowAccount CompanyCurrency API

The CompanyCurrency API from FlowAccount — 2 operation(s) for companycurrency.

FlowAccount Contact API

The Contact API from FlowAccount — 4 operation(s) for contact.

FlowAccount DebitNote API

The DebitNote API from FlowAccount — 9 operation(s) for debitnote.

FlowAccount Employee API

The Employee API from FlowAccount — 3 operation(s) for employee.

FlowAccount Expense API

The Expense API from FlowAccount — 12 operation(s) for expense.

FlowAccount Products API

The Products API from FlowAccount — 3 operation(s) for products.

FlowAccount ProductUnit API

The ProductUnit API from FlowAccount — 2 operation(s) for productunit.

FlowAccount Purchase API

The Purchase API from FlowAccount — 8 operation(s) for purchase.

FlowAccount Quotation API

The Quotation API from FlowAccount — 10 operation(s) for quotation.

FlowAccount Receipt API

The Receipt API from FlowAccount — 10 operation(s) for receipt.

FlowAccount ReceivableInvoice API

The ReceivableInvoice API from FlowAccount — 8 operation(s) for receivableinvoice.

FlowAccount TaxInvoice API

The TaxInvoice API from FlowAccount — 9 operation(s) for taxinvoice.

FlowAccount Batch Import API

The Batch Import API from FlowAccount — 10 operation(s) for batch import.

FlowAccount Credit Note API

The Credit Note API from FlowAccount — 9 operation(s) for credit note.

FlowAccount Product Category API

The Product Category API from FlowAccount — 2 operation(s) for product category.

FlowAccount Product Inventory API

The Product Inventory API from FlowAccount — 2 operation(s) for product inventory.

FlowAccount Purchase Order API

The Purchase Order API from FlowAccount — 8 operation(s) for purchase order.

Scroll for all 19

Open Collections 19

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

FlowAccount Open BatchImport API

OPEN COLLECTION

FlowAccount Open BatchImport BillingNote API

OPEN COLLECTION

FlowAccount Open BatchImport CashInvoice API

OPEN COLLECTION

FlowAccount Open BatchImport CompanyCurrency API

OPEN COLLECTION

FlowAccount Open BatchImport Contact API

OPEN COLLECTION

FlowAccount Open BatchImport CreditNote API

OPEN COLLECTION

FlowAccount Open BatchImport DebitNote API

OPEN COLLECTION

FlowAccount Open BatchImport Employee API

OPEN COLLECTION

FlowAccount Open BatchImport Expense API

OPEN COLLECTION

FlowAccount Open BatchImport ProductCategory API

OPEN COLLECTION

FlowAccount Open BatchImport ProductInventory API

OPEN COLLECTION

FlowAccount Open BatchImport Products API

OPEN COLLECTION

FlowAccount Open BatchImport ProductUnit API

OPEN COLLECTION

FlowAccount Open BatchImport Purchase API

OPEN COLLECTION

FlowAccount Open BatchImport PurchaseOrder API

OPEN COLLECTION

FlowAccount Open BatchImport Quotation API

OPEN COLLECTION

FlowAccount Open BatchImport Receipt API

OPEN COLLECTION

FlowAccount Open BatchImport ReceivableInvoice API

OPEN COLLECTION

FlowAccount Open BatchImport TaxInvoice API

OPEN COLLECTION

Scroll for all 19

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Record a cash sale and receive payment

AGENT SKILL

Create a contact and issue a quotation

AGENT SKILL

Manage products and inventory

AGENT SKILL

FlowAccount API pricing

Prices published by FlowAccount, read 2026-10-28 from flowaccount.com/pricing.

Plan	Price
Free	*เหมาจ่าย 0 บาท/ปี Includes: 1 สิทธิ์ผู้ใช้งาน, สร้างเอกสารได้ ไม่จำกัด
Standard	฿ 165/เดือน Includes: *เหมาจ่าย 1,990 บาท/ปี; ทดลองฟรี 30 วัน; AutoKey 100 ใบ/เดือน
Pro	฿ 249/เดือน Includes: *เหมาจ่าย 2,990 บาท/ปี; ทดลองฟรี 30 วัน
Pro Business	฿ 457/เดือน Includes: *เหมาจ่าย 5,490 บาท/ปี; Open API; AutoKey ไม่จำกัดจำนวน
Payroll / ระบบลางานออนไลน์ (add-on)	฿249/เดือน Includes: *เหมาจ่ายรายปี 2,990 บาท/ปี
เชื่อมต่อหลายร้านค้า (add-on)	฿ 249/เดือน Includes: *รองรับ Pro Business รายปีเท่านั้น

Plan details, limits and sources →

Billed by: แพ็กเกจ · FinOps profile →

Pricing Plans 1

Published pricing tiers and plan structures.

Flowaccount Plans Pricing

6 plans

PLANS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

FlowAccount

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Flowaccount Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Flowaccount Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

FlowAccount API Rules

48 rules · 39 errors 7 warnings 2 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Flowaccount Openapi Overlay

2 actions · update · flowaccount-openapi-original.json

DERIVED

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Flowaccount Authentication

oauth2/http · 2 schemes

SECURITY

Flowaccount Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Flowaccount Vulnerability Disclosure

Hackerone · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Flowaccount Scopes

1 scope

1 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Flowaccount Agentic Access

153 operations · 104 acting

AGENTIC

Resources

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 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
image: https://flowaccountcdn.com/favicon/landing/FlowAccount.png
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-03
tags:
- Company
- Accounting
- Invoicing
- Payroll
- Point-of-Sale
- Small Business
- Finance
- Tax
- Thailand
- Bookkeeping
tags_raw:
- Company
- Accounting
- Invoicing
- Payroll
- Point of Sale
- SME
- Finance
- Tax
- Thailand
- Bookkeeping
apis:
- 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-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:
  - Debit Note
  tags_raw:
  - 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:
  - Expenses
  tags_raw:
  - 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-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-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
- aid: flowaccount:flowaccount-batch-import-api
  name: FlowAccount Batch Import API
  description: The Batch Import API from FlowAccount — 10 operation(s) for batch import.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Batch Import
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-batch-import-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-credit-note-api
  name: FlowAccount Credit Note API
  description: The Credit Note API from FlowAccount — 9 operation(s) for credit note.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - CreditNote
  tags_raw:
  - Credit Note
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-credit-note-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-product-category-api
  name: FlowAccount Product Category API
  description: The Product Category API from FlowAccount — 2 operation(s) for product category.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Product Category
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-product-category-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-product-inventory-api
  name: FlowAccount Product Inventory API
  description: The Product Inventory API from FlowAccount — 2 operation(s) for product inventory.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Product Inventory
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-product-inventory-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-order-api
  name: FlowAccount Purchase Order API
  description: The Purchase Order API from FlowAccount — 8 operation(s) for purchase order.
  humanURL: https://developers.flowaccount.com/
  baseURL: https://openapi.flowaccount.com/v3-alpha
  tags:
  - Purchase Order
  properties:
  - type: OpenAPI
    url: openapi/flowaccount-purchase-order-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: Plans
  url: plans/flowaccount-plans-pricing.yml
- url: https://flowaccount.com/blog/feed/
  type: BlogRSS
- type: CapabilityMap
  url: capabilities/flowaccount-capability-edges.yml
  name: FlowAccount Business Capability Map
- 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

FlowAccount API — frequently asked questions

Does FlowAccount have an API?

Yes. APIs.io lists 19 APIs from FlowAccount, including FlowAccount BillingNote API, FlowAccount CashInvoice API and FlowAccount CompanyCurrency API, and 16 more.

Is there an OpenAPI specification for the FlowAccount API?

Yes. APIs.io indexes 19 OpenAPI specifications for FlowAccount, each linked for download from this page.

How do I authenticate with the FlowAccount API?

FlowAccount uses bearer-token authentication (oauth2/http · 2 schemes). The details are profiled on APIs.io as Flowaccount Authentication.

How much does the FlowAccount API cost?

FlowAccount publishes its prices; its Free plan is *เหมาจ่าย 0 บาท/ปี as of 2026-10-28. APIs.io lists 6 pricing plans for FlowAccount, with each plan's price, limits and inclusions under Pricing on this page.

Is the FlowAccount API ready for AI agents?

FlowAccount has a Kin Score of 68.8 out of 100 (exemplar) and an Agent Readiness score of 28.3 (agent-aware), scored by API Evangelist on 2026-11-06.

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"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

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