ColdPulse - AI Cold Outreach & Remote MCP Gateway

Gallery

About

ColdPulse is a production-ready asynchronous Python backend and Remote MCP (Model Context Protocol) Gateway designed for automated, safe B2B cold emailing via AI assistants (Claude Desktop, Cursor).

Key Features & Architecture:

- Remote MCP Gateway: Real-time Server-Sent Events (SSE) protocol allowing Claude / Cursor to safely manage campaigns and audit infrastructure via AI tools.

- Automated Pre-Flight Safety Checks: Real-time DNS verification (SPF, DKIM, DMARC) and RBL spam blacklist monitoring using dnspython.

- Inbox Warmup & Anti-Ban Controls: Strict mailbox warming checks (blocks sending if <14 days warmup) and hardcoded 50 emails/day per domain limit with randomized delivery intervals.

- Instantly.ai API v2 Integration: Automated campaign creation, lead assignment, and custom isolated webhooks for instant reply detection and automatic follow-up cancellations.

- ZeroBounce API Integration: Ready for batch email validation and spam-trap filtering.

- Modern Robust Stack: Built with FastAPI (async), PostgreSQL 16 (SQLAlchemy 2.0 async), Redis 7 & Celery for delayed queues, packaged in Docker Compose with Nginx SSL reverse-proxy configurations.

- BYOK (Bring Your Own Keys) Architecture: Fully isolated multi-tenant design where users provide their own keys, keeping operational infrastructure costs near zero ($5-10/mo VPS).

Included in Sale:

- Full, clean source code repository with zero technical debt.

- Complete Docker Compose setup (FastAPI, Celery worker, PostgreSQL, Redis).

- Production-ready Nginx configuration optimized for SSE streaming.

- Full API documentation and Claude Desktop integration instructions.