"HAL" matching MCP servers:

Provides access to 70 paid APIs as MCP tools with per-call and session budgets, paying via x402/USDC on Base without requiring an account or login. Includes a built-in allowlist of hosts and safe defaults to prevent unintended payments.

MCP server for the HAUL API marketplace, enabling email and phone verification, credit balance checks, and top-ups.

MCP server that lets AI assistants query your Halaxy practice-management data—appointments, invoices, referrals, and practitioners—via natural language, exposing read-only tools for daily schedules, billing status, and session limits.