AI sales assistant that drafts client follow-ups in your voice from your real inbox
Stage
Established
Growing
Founded
Not given
Not given
Based in
DE
Not given
Pricing model
freemium
Not given
Pricing
Not given
Free plan with 300 one-time credits. Growth plan at $79/month with 100 managed contacts and 1,000 credits/month. Pro plan at $329/month with 500 managed contacts and 5,000 credits/month. Enterprise at custom pricing with 1,000+ managed contacts. Unlimited seats on all plans.
Key features
Hierarchical traces capture every LLM call, tool invocation, and retrieval step
LLM-as-a-judge, heuristic functions, or human review evaluations
Prompt management with one-click deployments and rollbacks
Playground to test prompts on real production inputs and compare models
Experiments with test cases and side-by-side comparison
Human annotation and collaborative human-in-the-loop workflows
Cost and latency monitoring with dashboards and alerts
REST APIs and Query SDK for data access
Langfuse Assistant to automate the AI engineering loop
Reads email and CRM to identify best prospects
Drafts personalized emails in your voice from actual conversation history
Approval-first workflow with optional auto-send
Contact enrichment and profile updates
Learns your writing style through approvals and edits
Shared team view with unified inbox for outreach
Integrates with Gmail, Outlook, HubSpot, and Attio
Sends from your real existing inbox
What makes it different
MIT licensed open source platform with no data lock-in
Enterprise scale architecture handling billions of monthly events
Works with any language and framework with no framework lock-in
Async by default so tracing never blocks your application
Treats every relationship individually rather than using fixed cadences
No sequences or templates required
Approval required by default, not auto-send
Works on top of existing CRM without migration
Continuous proactive relationship management at scale