Open Source Sales Engagement

Signal

Open-source AI sales intelligence and outreach automation — the open alternative to Clay, Apollo, and Outreach.

Project Resources

GitHub Repository ↗Documentation ↗Website ↗

Open Source

This tool is fully open-source. You can inspect the code, contribute to its development, and ensure full data sovereignty by hosting it yourself.

Self-Hostable

Avoid vendor lock-in. Deploy Signal on your own infrastructure (AWS, DigitalOcean, or private servers) for maximum privacy and control.

AI Agent Capabilities

Signal Detection

Contact Enrichment

Outreach Automation

AI SDR

Browser Automation

Self-hosted

Project Description

Signal watches the web for buying signals (hiring changes, funding news, product launches, review shifts), enriches the companies and contacts behind them, drafts personalized outreach, and runs multi-step email sequences — all from a single chat-first workspace. Self-host on your own Supabase + Anthropic keys and own the pipeline end to end.

Technical Meta

API Type

REST

Authentication

API Key

Languages

TypeScript

License

Open Source