coldsend-mcp vs voicesphere-mcp

AI-native cold email campaign management via Model Context Protocol. ## What You Can Do - **Campaigns** — Create, launch, pause, resume, and delete email campaigns with full lifecycle control - **Leads** — Upload leads from CSV, list, filter, and manage recipients per campaign - **Sender Accounts*

Launch voice collection campaigns for feature phones, list active tasks, and monitor campaign stats. Validate and transcribe audio samples automatically to ensure high-quality datasets. Credit mobile data rewards instantly to drive participant engagement.

MCP Servers

MCP Servers

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