AIWerk

MCP server catalog — searchable directory of MCP server recipes, served as an MCP server

MCP server for Wheel-Size.com Wheel Fitment API (32 read-only tools)

Wise (TransferWise) Personal API MCP server — read-only: profiles, balances, rates, transfers, recipients

Cal.com scheduling MCP server — bookings, event types, availability with tools + resources + prompts

Smallinvoice.ch API MCP server — Swiss SME invoicing and accounting (146 tools, OAuth2 BYOC, atomic refresh-token rotation, pre-write JSON snapshots, DRY_RUN safety mode)