Settings

API Keys

API keys are configured via environment variables in your .env file.

OpenAI API KeyOPENAI_API_KEY

Used for ICP scoring (GPT-4o-mini) and email drafting (GPT-4o)

SendGrid API KeySENDGRID_API_KEY

Used to send outreach emails

ZeroBounce API KeyZEROBOUNCE_API_KEY

Used to verify email addresses

Hunter.io API KeyHUNTER_API_KEY

Used to find email addresses by company domain

Serper.dev API KeySERPER_API_KEY

Used for Google Search spider

Email Settings

Email settings (from name, from email, daily limit) are configured per campaign in the campaign settings.

Domain Warm-up Recommendation

Start with 20 emails/day for the first week, 50/day for week 2, then scale to 100+/day. This reduces spam filter risk.

Infrastructure

Database

🟢 PostgreSQL (Docker)

Queue

🟢 Redis + BullMQ

API Server

🟢 Express (port 4000)

Worker

🟢 BullMQ Worker