"Managing Clerk Authorization" matching MCP connectors:

Connect AI assistants to hosted Billr to manage clients, review unbilled work, log time and expenses, and draft invoices and estimates. Requires a Billr account and OAuth authorization; sending invoices and payment actions require explicit user permission.

B2B contact data for AI agents: search people by title, company, industry, headcount, country and technology, then reveal verified work emails and phone numbers. Requires a Leadscart API key (Authorization: Bearer lc_live_…).

Free hosted MCP for invoices, estimates, clients, items and PDFs. OAuth authorization required.