Changelog

Published FINCI guide and API reference releases.

Guide

1.1.0

Status: Current guide version

Released: April 10, 2026

What changed:

• Issuing cards: expanded the Card creation prerequisites section
• Issuing cards: clarified the setup sequence for person-based and company-based issuance
• Issuing cards: added explanation of the account record and why it must exist before card creation
• Issuing cards: clarified identifier usage across account setup and card creation, including digit-only account external_number
• Authorization flow: clarified that the account entity still exists even where balance is not used as the approval control during webhook decisioning
• Authorization flow: clarified authorization advice confirmation behavior and current success/error response handling

1.0.0

Status: Previous guide version

Released: Initial developer portal publication

What changed: First publication of the FINCI Card API developer portal guides.

API references

1.9.0

Status: Current API reference version

Released: Initial developer portal publication

Includes: Card API, Webhook events

Added

• published Card API reference in OpenAPI format
• published Webhook events reference in OpenAPI format

Changed

• API definitions migrated from Swagger to OpenAPI
• improved published Card API validation metadata for key customer, address, card, phone, and account fields