MCP server

ChurnLens

io.github.kindrat86/churnlens

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

6

Token cost

About 1,267 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.churnlens]
url = "https://churnlens.site/api/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"churnlens":{"type":"http","url":"https://churnlens.site/api/mcp"}}}

Antigravity

agy mcp add churnlens https://churnlens.site/api/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"churnlens","server_url":"https://churnlens.site/api/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"churnlens","server_url":"https://churnlens.site/api/mcp"}

Tools

• analyze_revenue_concentration ~205 tokens
  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?
• calculate_churn_rate ~229 tokens
  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.
• calculate_ltv ~216 tokens
  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.
• detect_zombie_mrr ~204 tokens
  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.
• get_scoring_bands ~140 tokens
  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.
• score_saas_health ~273 tokens
  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.

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