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At Qonto, we version our APIs to minimize the impact of changes on your business integrations. Each time we introduce a breaking change, we release a new API version. You can access each version using the following URL structure: https://thirdparty.qonto.com/<api-version> For example, to use version 1 of our API: https://thirdparty.qonto.com/v1 Business API paths therefore start with the version, e.g. /v2/transactions.

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Non-breaking changes

Within a single API version, Qonto may introduce non-breaking changes at any time. To ensure your integration remains stable, we recommend designing your implementation to be flexible with these updates. Non-breaking changes may include:
  • Adding new endpoints,
  • Introducing new fields in response payloads at any level,
  • Adding optional fields to request payloads,
  • Expanding enumerated lists with new possible values,
  • Reordering fields or elements in unordered lists,
  • Modifying the format or length of identifiers (unless a specific format is documented).
By following these guidelines, you can ensure your integration with Qonto’s API remains resilient as we continue to improve our platform.