Your AI,
on record.
The agent layer for Obsidian. Curtis reads and writes your notes, and files every answer as a record you own — conversations as markdown in your vault, your keys, .curt export.
Entry 01 · The workspace
Every answer, on the record.
The ledger is the product: a dated, attributable file of everything you and your agents asked and answered — tabbed records, a dockable inspector, per-turn usage metering. Not a transcript in someone else’s cloud. A record on your machine.
kept by three instruments↓
Entry 02 · The instruments
Three instruments, one standard.
Curtis Chat
A streaming chat ledger across 50+ providers on your own keys. Named agents, skills, memory — records, exports, share cards.
About chat →Curtis Porter
Converts ChatGPT, Claude, Grok and Gemini exports into .curt records — in your browser, zero network. Your history becomes your ledger.
About porter →Curtis Audit
Append-only receipts for agent activity. When an AI acts on your behalf, audit keeps the proof.
About audit →everything they write follows one format↓
Entry 03 · The standard
An open standard, not a feature.
Every AI tool should file its work the same way. .curt is our answer — an open-source record format: who asked, what was answered, when, on which model, at what cost. Plain text, no license, readable in any editor and any decade. We’re pushing it as the industry default; your ledger outlives every vendor.
record 00041 · curt/1 who jordan → claude when 2026-10-15 09:41 model glm-5.3-flash usage 1,204 in · 310 out · $0.0031 proof sha256 9f2c…be01 · append-only
governed by three standing rules↓
Entry 04 · The standing rules
Own the records.
Local-first.
Records live on hardware you control. Self-hosted Curtis costs nothing — the office is yours.
Bring your own keys.
Inference bills to your provider account, not to Curtis. No margin on your tokens, ever.
Open formats.
Export everything as .curt, Markdown or JSON, any time. The ledger leaves when you do — no lock-in.
Start the ledger.
v1.0.0 is out — install from GitHub releases, or bring your exports through Porter.