Reply.io

Reply.io is a sales engagement platform used by thousands of B2B sales teams to automate multichannel outreach — email, LinkedIn, calls, SMS, and WhatsApp. The Reply.io MCP server exposes the platform's core functionality as tools that any MCP-compatible AI model can call directly.

Once connected, your AI assistant can list and manage sequences, pull real-time performance analytics (delivery, open, reply, and click rates at the sequence and step level), enroll contacts, and control campaign state — all through natural language, no browser required.

Typical use cases:
- Ask Claude or Cursor to pull open and reply rates for your active sequences and identify underperformers
- Enroll a new contact in a sequence mid-conversation, without switching to the Reply.io dashboard
- Pause or start sequences, then check step-level stats to diagnose drop-off points
- Build AI agents that automate outreach workflows end-to-end — prospect, enroll, follow up, analyze

The MCP server is hosted by Reply.io and authenticated via API key. No self-hosting or open-source setup is required.