things3

A Rust command-line client for Things 3 that talks directly to the Things Cloud API.

Install

From source:

cargo install --path .

From crates.io:

cargo install things3-cloud

Build

cargo build

Configure auth

things3 set-auth

Usage

$ things3 today
⭑ Today  (9 tasks)

  LZ4 ▢ Follow up with team
      │ Shared notes for context
      │
    D ├╴○ draft update
    J └╴○ review checklist
  4HY ▢ Task with notes
      │ Multi-line note example
      └ with a second line
  Uuq ▢ Review inbox and prioritize
  699 ▢ Prepare weekly summary  [Planning]
  H47 ▢ Submit reimbursement  ⚑ due by 2026-04-10

  ☽ This Evening
  8KU ▢ Reflect on highlights
  63E ▢ Reset workspace for tomorrow

things3 find --query "rent" --deadline "<=2026-03-31"
things3 new "Follow up with team" --when today
things3 schedule <task-id> --deadline 2026-04-10
things3 mark <task-id> --done

Supported features

• Configure auth with set-auth (stored in XDG state)
• Incremental sync with local cache for fast startup
• --no-sync flag to skip cloud sync and use local cache only

Views

• inbox, today, upcoming, anytime, someday, logbook
• projects / project <id>, areas / area <id>, tags
• Show notes via --detailed
• Show checklist items via --detailed
• find with title/notes/checklists and tag/area/project/status/date filters

Tasks

• new — create tasks with title, notes, tags, when, deadline, and position
• edit — rename, set/remove notes, move, add/remove tags (multi-ID supported)
• edit --add-checklist/--remove-checklist/--rename-checklist
• mark — done/incomplete/canceled (multi-ID supported)
• mark --check/--uncheck/--check-cancel for checklist toggles
• schedule — when/start date, deadline, today/evening/someday
• reorder — reorder tasks within lists
• delete — trash tasks

Projects / Areas / Tags

• projects new / projects edit
• areas new / areas edit
• tags new / tags edit / tags delete

Testing

Run all Rust tests:

cargo test --all-targets

The CLI snapshot suite uses trycmd test cases in trycmd/.