firefly-cli
A command-line tool that lets an LLM agent (and you) interact with a
Firefly III instance over its REST API.
Python package, stdlib only, exposing the firefly command.
Install
pip install -e .
Requires Python 3.11 or newer. No third-party runtime dependencies.
Configuration
Provide your Firefly III URL and a personal access token in either way:
- Run
firefly auth setand follow the prompts (stored in a local TOML file). - Or set environment variables
FIREFLY_URLandFIREFLY_TOKEN, which take precedence over the config file.
Commands
Run firefly --help for the full list. Current commands:
firefly auth set write URL and token to the config file
firefly auth test verify connectivity and token
firefly account list [--type T] list accounts (filter: asset, expense, ...)
firefly account get <name|id> show one account
firefly account balance <name> show an account balance
firefly account create <name> --type asset|expense|revenue
[--opening-balance N] [--currency CODE]
firefly tx add <amount> --from <acct> --to <acct> [--desc T]
[--date YYYY-MM-DD] [--category C] [--tags a,b] [--type T]
firefly tx list [--since D] [--until D] [--account A] [--limit N]
firefly tx get <id> show one transaction
firefly tx search <query> search transactions
firefly category list
firefly tag list
The command set grows over time; see CLAUDE.md for how to add one.
For agents
- Output is JSON by default. Pass
--humanfor aligned tables. - Exit code is 0 on success, 1 on any error; errors print as
{"error": "..."}on stderr. - Account arguments accept names, which are resolved to IDs. An ambiguous or unknown account is a hard error listing the candidates, never a silent guess.
- Categories and tags are not resolved:
tx add --category/--tagspass the names straight to Firefly, which creates them if new. Accounts are never auto-created; useaccount create. tx addinfers the transaction type from the account types (asset to expense is a withdrawal, revenue to asset is a deposit, asset to asset is a transfer). Override with--type.
For agents (skill)
SKILL.md is an agent-operating guide for driving firefly: the
JSON/exit-code contract, name resolution, transaction-type inference, task
recipes, and gotchas. It carries skill frontmatter, so it can be symlinked into
a Claude Code skills directory to auto-activate on Firefly III and personal
finance tasks.
License
Released under the GNU General Public License, version 2 only (GPLv2-only). See the LICENSE file for the full text.
