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ChurnLens

io.github.kindrat86/churnlens · v1.0.1

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2024-11-05
Rank score	—
Declared risk	Not declared (tools carry no read/destructive hints)
Capabilities declared	prompts, resources, tools
Tool definitions	6 tools · with description 100% · input schema is an object 100% · read/destructive hints 0%

Buyer-side SaaS due-diligence maths: NRR, GRR, revenue concentration, zombie MRR, LTV:CAC.

streamable-http · https://churnlens.site/api/mcp

claude mcp add --transport http churnlens https://churnlens.site/api/mcp

{
  "mcpServers": {
    "churnlens": {
      "url": "https://churnlens.site/api/mcp"
    }
  }
}

calculate_churn_rate
Calculate net revenue retention (NRR), gross revenue retention (GRR), revenue churn and implied customer lifetime from one period's MRR movements. Also reports the NRR-minus-GRR spread, which reveals how much churn is being masked by expansion revenue.
analyze_revenue_concentration
Assess customer concentration risk across a book of revenue using the Herfindahl-Hirschman Index (HHI), top-N share and whale detection. Answers the question every acquirer asks first: how much revenue walks out with one logo?
detect_zombie_mrr
Identify dormant-but-paying accounts — revenue that still counts in MRR but whose customers have stopped showing up. Zombie revenue is one renewal notice from cancelling and is invisible to standard revenue dashboards.
score_saas_health
Score a SaaS business 0-100 across five dimensions — retention, growth, concentration, efficiency and durability — and return the composite. Every mapping is published, so the score can be reconstructed by hand.
calculate_ltv
Calculate gross-margin-adjusted customer lifetime value, the LTV:CAC ratio and CAC payback in months. Omitting gross margin yields lifetime revenue rather than lifetime value — usually a third of the number.
get_scoring_bands
Return the scoring thresholds ChurnLens applies to NRR, revenue concentration and the composite health score. These are bands, not measured benchmark data — the sourced benchmark figures are cited at https://churnlens.site/benchmarks.

Repository · Website · JSON · Text for agents · Registry updated 2026-08-14