Model Context Protocol server for [Wave Accounting](https://waveapps.com). See `docs/superpowers/specs/2026-05-09-mcp-wave-design.md` for the design spec and `docs/superpowers/plans/2026-05-09-mcp-wave-implementation.md` for the implementation plan. ```bash npm install cp .env.example .env # then fill in WAVE_API_TOKEN and WAVE_DEFAULT_BUSINESS_ID