BUSY Accounting Software Developer API

BUSY API Documentation

BusyNotify exposes structured REST APIs for BUSY Accounting Software data so developers can connect websites, mobile apps, CRMs, dashboards, and internal systems to customers, invoices, products, ledgers, and custom reports.

View OpenAPI JSON API Integration Service

Technical Specifications

Response format

JSON

Authentication

Bearer token

Transport

HTTPS

Primary data source

BUSY Accounting Software

Supported modules

Customers, invoices, products, ledgers, custom reports

OpenAPI file

https://busynotify.in/openapi.json

Core Endpoints

GET/v1/customers

Customer Data API

Read BUSY party master records, contact data, GSTIN, city, state, balances, and credit limits.

GET/v1/bills

Invoice Data API

Fetch BUSY bills and invoices with invoice number, customer, date, due date, amount, and payment status.

GET/v1/products

Product Data API

Access item master, SKU, HSN, unit, stock, and price information from BUSY Accounting Software.

GET/v1/ledgers/{ledger_id}

Ledger Statement API

Retrieve opening balance, closing balance, and voucher-level ledger transactions.

Integration Model

BUSY Data Scope

Each API is scoped to the approved BUSY company, modules, and reports enabled for that business.

Token Access

API consumers use bearer tokens. Keys can be rotated or revoked based on deployment requirements.

Secure Transport

Responses are delivered over HTTPS as structured JSON for web, mobile, CRM, and reporting integrations.

API availability, field names, and custom reports depend on the customer's BUSY Accounting Software configuration. For production integrations, BusyNotify confirms the required modules, report fields, sync frequency, and authentication model during setup.