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ChurnLens

by io.github.kindrat86
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Server Details

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

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Status
Healthy
Uptime
100.0% over the last 24 hours
Last Tested
Transport
Streamable HTTP · MCP 2024-11-05
URL
Repository
kindrat86/churnlens-mcp
GitHub Stars
0
ChatGPT
–
Claude
–

TDQS

A4.1/5.0

Scored across 6 tools

Disambiguation5/5

Each tool targets a distinct concept (revenue concentration, churn rate, LTV, zombie MRR, scoring bands, composite health). No two tools overlap in purpose.

Naming Consistency5/5

All tool names follow a consistent verb_noun pattern with snake_case (e.g., analyze_revenue_concentration, calculate_churn_rate). No mixed conventions.

Tool Count5/5

6 tools is well-scoped for a specialized churn analytics server. Each tool earns its place, covering key metrics without bloat.

Completeness5/5

The tool surface covers the core churn analytics workflow: concentration, churn rates, LTV, zombie detection, scoring bands, and composite health. No obvious dead ends.

Available Tools

6 tools
analyze_revenue_concentrationAInspect

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?

Inputs: customer_mrrs (required), top_n, whale_threshold_pct.

calculate_churn_rateBInspect

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.

Inputs: starting_mrr (required), churned_mrr, expansion_mrr, contraction_mrr.

calculate_ltvAInspect

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.

Inputs: arpa (required), monthly_churn_rate_pct (required), cac, gross_margin_pct.

detect_zombie_mrrAInspect

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.

Inputs: accounts (required), threshold_days.

get_scoring_bandsAInspect

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.

Inputs: metric.

score_saas_healthAInspect

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.

Inputs: nrr_pct (required), ltv_to_cac_ratio (required), annual_plan_share_pct (required), monthly_churn_rate_pct (required), +1 more.

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