Build on Bitcoin accounting
We solved the edge cases so you don't have to. Self-host, integrate, ship.
Bitcoin accounting is hard to build
- Cost basis calculations across wallet types are deceptively complex.
- Handling on-chain, Lightning, and multisig requires specialized logic.
- Maintaining accuracy at scale becomes brittle as your product grows.
- Generic APIs don't speak Bitcoin.
- AI coding tools can't work with most accounting systems. APIs weren't designed for agents, CLIs weren't designed for scripts.
- Building from scratch means months lost to edge cases you haven't discovered yet.
The accounting layer your stack is missing
Deploy the server, hit the API, ship.
- Deploy the Server in your stack with full REST API access.
- Automate workflows and batch operations with the CLI.
- LLM-friendly API and scriptable CLI. Any agent that can run shell commands or call your self-hosted API can work with Clams.
- Ship accounting features with Claude Code, Codex, or Cursor, and let your agent write the glue.
- Native node sync for Core Lightning, LND, NWC, and phoenixd, watch-only xpub and descriptor tracking for on-chain and multisig wallets, and CSV import for the rest.
- Accurate cost basis, transfer matching, and audit-ready exports.
- Build reporting and automation on top of your books without starting from scratch.
- Want it built for you? Enterprise ships integrations, scripts, and dashboards on top of your books.