Building an Agent-Native Cold Outreach Platform: MCP, A2A, and Pay-Per-Inbox Billing

LDM launches on Product Hunt this weekend. Sharing what's under the hood for builders. The two technical bets Most cold email tools (Instantly, Smartlead, Lemlist, Apollo) are built UI-first. Sales teams click through onboarding, build sequences in dashboards, monitor in dashboards. The API is an afterthought. Agent integration is a webhook at best. LDM is built API-first, then UI. This let me make two unusual technical bets. 1. Native MCP server, not a plugin ldm-crm-mcp ships as an npm package