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. The edge cases are already handled.

  • 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. The edge cases are handled, 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.

Ready to integrate?

Install and run anywhere. Or have us help you deploy it. See Pricing.