Ballast for Claude.ai
io.github.useballast/ballast-mcp
Cold email outreach: manage campaigns, lead sequences, mailbox warmup, and unified inbox replies.
client:Claude.ai
transport:streamable-http
Install Ballast in Claude.ai
Settings → Connectors → Add custom connector
https://ballast.to/api/mcpClaude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs