API reference

Changelog

Additive changes can ship any time. Breaking changes are listed here.

27 August 2026

  • Authorization accepts both Bearer fw_… and a raw fw_… key.
  • Documented PATCH /transactions/:id, tags, merchants, category groups, budgets, planned transactions, account groups, holdings, and /account-balances/aggregated3.
  • List pagination metadata is in x-count, x-page-number, x-page-size, and x-has-next-page headers.

30 April 2024

  • Initial public API.