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Documentation Index

Fetch the complete documentation index at: https://docs.dualentry.com/llms.txt

Use this file to discover all available pages before exploring further.

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Introduction

The DualEntry Public API provides programmatic access to your organization’s accounting data. It’s designed for server-to-server integrations using RESTful conventions and JSON format.

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Overview

  • RESTful API: Standard HTTP methods (GET, POST, PUT, DELETE)
  • JSON Format: All requests and responses use JSON
  • Secure: API key-based authentication
  • Versioned: Both V1 and V2 available; V2 is recommended for new integrations

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What You Can Build

Build integrations to automate accounting workflows, sync data with external systems, and create custom financial applications.
Common Use Cases: Automated invoicing, data synchronization with CRM/ERP systems, custom reporting, third-party integrations with payment processors or e-commerce platforms.

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Versioning

The API supports two versions:
  • V2 (/public/v2/) — Recommended for new integrations. Adds depreciation-books, intercompany-journal-entries, and enhanced fixed-assets with multi-book depreciation.
  • V1 (/public/v1/) — Maintained for backward compatibility. Existing integrations continue to work without changes.
See the Changelog for migration details.

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API Resources

The API provides access to:
  • Setup: Accounts, Items, Classifications
  • Master Data: Companies, Customers, Vendors
  • Transactions: Invoices, Bills, Journal Entries, Payments, Purchase Orders
  • Automation: Recurring Transactions, Attachments
  • V2-only: Depreciation Books, Intercompany Journal Entries

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Getting Started

  1. Get an API key from your DualEntry administrator
  2. Include the API key in the X-API-KEY header with every request
  3. All endpoints require authentication and are rate-limited
Base URLs:
  • Production: https://api.dualentry.com
  • Development: https://api-dev.dualentry.com
Next: Learn about Authentication →
Last modified on May 29, 2026