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Everything you need to integrate with the FreshBooks API

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9Articles & Guides

Articles & Guides

In-depth articles and integration guides

9
01

API Aggregator: What It Is, How It Works, and How to Choose One

Learn what an API aggregator is, how it works under the hood, and what to look for when choosing one. Covers open banking, accounting, HRIS, and CRM aggregators.

02

Unified APIs for Fintech: When Data Aggregators Stop Scaling

Direct integrations work until maintenance costs outpace development. Learn when fintech teams should shift from building custom connections to leveraging data aggregators and unified APIs for scalable integration infrastructure.

03

Accounting & ERP Partnership Guide

Learn which accounting integrations require partnerships (QuickBooks, Xero, Sage) vs. ready-to-use connectors. Complete guide to Apideck's 20+ accounting API partnership requirements, fees, and setup steps

04

Xero API Pricing and the App Partner Program

Xero's new API pricing starts March 2026. Compare tiers, costs vs QuickBooks and Sage, plus 6 optimization strategies to reduce your integration expenses.

05

Top 15 Accounting APIs to Integrate with in 2026

Building SaaS in 2026? The right accounting API can make or break your product. This article breaks down the 15 APIs that matter most—what they’re best at, key features, and real-world use cases. Plus, the trends shaping integrations this year. A must-read for anyone serious about scaling with seamless financial workflows.

06

Rutter Alternatives: A Technical Evaluation for 2026

Evaluating Rutter alternatives? Learn which unified API platforms offer deeper accounting integrations, real-time passthrough data access, zero-storage compliance advantages, and transparent pricing models—plus which option fits your roadmap best.

07

What is Open Accounting

Open Accounting enables businesses to share real-time financial data from accounting systems like QuickBooks, Xero, and NetSuite with lenders and fintech platforms through APIs.

08

Why Building Native Integrations In-House Is Slowing Your Product Down

Building integrations in-house feels smart at first, until it slows your entire product down. This article reveals the hidden costs of native integrations and shows how unified APIs let you scale faster, cut maintenance, and keep your team focused on what really matters.

09

How Fintech Startups Can Integrate with 20+ Accounting Platforms Using a Single API

Building and maintaining direct integrations with accounting platforms like QuickBooks, Xero, and FreshBooks drains time, slows your go-to-market, and piles up technical debt. This article breaks down why a unified API is the smarter path for fintechs, as it simplifies authentication, standardizes data, and absorbs constant API updates.