MyUnisoft API integration: best practices and key insights

Accounting workflows are getting smarter, faster, and more connected. And MyUnisoft is part of this evolution. Their API is a modern gateway to powerful automation, and thanks to Chift, integrating with it is now easier than ever.

Whether you're building a finance app, a business management solution, or a vertical SaaS, this integration unlocks the potential of one of France’s most advanced accounting tools.

• Save hours of manual data transfers.
• Leverage financial data for features like cashflow forecasting.

This guide covers all the essentials for integrating with the MyUnisoft API, including best practices, API specifics, and use-case examples.

What it the MyUnisoft API?

The MyUnisoft API is designed for performance and flexibility. It speaks the language of modern developers (RESTful, JSON over HTTP), versioned, and ready for both synchronous and asynchronous operations.

Here’s a breakdown:

RESTful JSON over HTTP + Versioning

The API uses standard REST conventions with clean JSON formatting over HTTP, and includes versioning to ensure backward compatibility and long-term stability for developers.

Dual Authentication (Partner Key + JWT)

It uses a secure dual authentication system that combines a permanent Partner Key with time-limited JWT tokens, making it both secure and flexible for integration at scale.

Sync & Async Endpoints + Webhooks

The API supports both synchronous requests for instant responses and asynchronous workflows for background tasks, complemented by webhooks to notify you of key events automatically.

Document Management (GED)

It includes a built-in GED (Gestion Électronique de Documents) module to structure and manage accounting documents such as invoices and receipts natively within the API.

Real-time Sync through Webhooks

Webhooks allow you to receive real-time updates the moment something changes in MyUnisoft, eliminating the need for manual refreshes or repeated API calls.

It’s not just an API, it’s a modern interface tailored for accounting workflows.

Chift’s Unified Accounting API also lets you connect with dozens of accounting platforms, including MyUnisoft, Cegid, ACD and Pennylane, through a single integration.

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Examples of MyUnisoft API integration use cases

Integrating with MyUnisoft can enhance your product’s capabilities and bring real value to your users. Here’s how some of our clients are already making the most of their connection with MyUnisoft.

Powering pre-accounting - Axonaut (ERP)

Axonaut users can automatically export financial data and create accounting entries in MyUnisoft (and a multitude of other accounting software), saving hours of tedious manual work for their accountant and themselves.

Read the full case study here: How Axonaut streamlined integration processes and saves resources with Chift

Assessing loan eligibility in 30seconds - Defacto (digital lending)

Defacto is a B2B fintech lender providing instant, pay-as-you-go financing to cover stock, marketing, and B2B receivables for SMEs.

Their algorithm, using financial data pulled from software connected to Chift’s Unified Accounting and Unified Invoicing APIs, is able to generate a loan eligibility status in as little as 30 seconds.

Read the full case study here: How Defacto expands their TAM by leveraging Chift’s API integrations

Cashflow forecasting - Agicap (cashflow management)

Agicap uses Chift’s Unified Accounting API to import their users’ open invoices (supplier and clients) from their respective accounting software (including MyUnisoft) into Agicap and gain access to future cash operations.

Please note that Agicap also uses the connector to send pre-accounting data to MyUnisoft, automating accounting for their users.

Read the full case study here: How Agicap enhances cash flow management through seamless integrations with Chift

Payment reconciliation

As companies using payment providers receive payments with amounts that don’t match what they invoiced clients (since the payout has payment fees deduced), payment reconciliation can be a headache. This only gets worse when refunds get added to the mix. Mollie, a popular payment provider, uses Chift’s accounting connectors to send transaction data, allowing easy payment reconciliation.

For more examples of how accounting integrations come to life, explore our Chift case studies.

MyUnisoft API integration setup

To create a MyUnisoft API integration you will need to have API key (dont share it with anyone for security reasons) and also %%X-Third-Party%% Key.

For more information, head to MyUnisoft’s documentation: https://docs.api.myunisoft.fr/

Best practices for a seamless integration with the MyUnisoft API

Want to make the most of the MyUnisoft API? Here are a few key best practices we recommend:

Secure & Manage Tokens Carefully

Always use secure storage for your JWT tokens and rotate them regularly. Chift handles token lifecycle management so you don’t have to.

Validate Your Payloads

Stick to MyUnisoft’s official JSON schemas to ensure your data flows smoothly. Chift helps you debug faster with built-in validation and test tools.

Use Webhooks for Real-Time Sync

Avoid polling and delays. Webhooks allow you to receive updates instantly. Chift makes webhook subscription and handling seamless.

Normalize Your Folder & Account Mapping Early

MyUnisoft uses a GED (document management) structure. Planning your folder and account mapping in advance saves a lot of cleanup down the line.

By following these best practices, you’ll build a robust, future-proof integration with MyUnisoft’s API.

Connect to MyUnisoft and other popular Accounting software with a single API integration

Chift’s Unified accounting API allows you to easily integrate with all major European accounting tools in a single integration, whitout wasting time and money on integration maintenance. In addition to MyUnisoft, connect to Inqom, Pennylane, Horus, ACD, Cegid Loop and more.

Chift’s Unified Accounting API provides scalable, cost-efficient integrations enabling rapid growth while significantly reducing integration costs. With instant, one-click activations and real-time management via a centralized dashboard, your software maintains compatibility and stays ahead of the competition.

Empower your users by automating data transfers, eliminating manual entry, and enhancing user experience with integrations that seamlessly handle authentication and pre-built mapping steps.

Curious about how you can use Chift’s Unified Accounting API for your integrations? Reach out to our team for a demo.

MyUnisoft API FAQ

What endpoints are included in the MyUnisoft API?

Chift’s MyUnisoft connector gives you access to a wide range of end-points, including but not limited to:

• Clients %%/clients%%
• Suppliers %%/suppliers%%
• VAT Codes %%/vat-codes%%
• Journal Entries %%/journal-entries%%

Consult our MyUnisoft API documentation for a full list of available routes.

What are the MyUnisoft API rate limits?

Like any good API, MyUnisoft enforces a fair usage policy to protect performance: 20 requests per 10 seconds per API token