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ChurnLens
Sheridan, Wyoming, United States
What it is
ChurnLens is a self-hosted SaaS metrics tool for analyzing MRR, churn, and LTV from Stripe or CSV billing data. Its full reports show current MRR, ARR run-rate, active customers, average customer churn, and monthly figures such as net-new MRR and LTV. The `mrr` command explains the latest month’s movement through new, expansion, reactivation, contraction, and churned MRR. Reports and commands can return JSON and accept a currency label, using USD by default. Metrics can be recomputed from ledger updates and published as JSON to a BI or dashboard pipeline. The project also lists SARIF output for code scanning, an MCP server for AI agents, and webhook forwarding for SIEM, Slack, and Jira. MCP clients named include Claude Desktop, Cursor, and Cognis.Studio, with framework references to LangChain, CrewAI, AutoGen, and LlamaIndex. It is self-hostable, requires no account, and supports API, Linux, macOS, Windows, and self-hosted deployment. Pricing is on request.
For and against
For
- Reports cover MRR, churn, LTV, and customer counts
- MRR movement separates five change categories
- JSON, SARIF, MCP, and webhook options
- Self-hosted deployment requires no account
- Supports multiple installation methods
Against
- Pricing is available only on request
- Commercial use requires a separate license
- Only latest release receives security fixes before v1.0
The verdict
ChurnLens combines subscription metrics, movement analysis, and machine-readable outputs in a self-hosted package. Its licensing terms and on-request pricing matter for commercial deployments.
Who it suits
ChurnLens suits teams needing self-hosted subscription metrics and automated JSON workflows. Commercial or production use requires a separate license.
On the record
- AI and CI usage
- The README says ChurnLens can be used through MCP, piped as JSON into agents or LLMs, or in CI with exit codes and SARIF.github.com · read 5 Oct 2026
- AI compatibility
- The README names Claude Desktop, Cursor, and Cognis.Studio as MCP clients and also mentions LangChain, CrewAI, AutoGen, and LlamaIndex.github.com · read 5 Oct 2026
- Automation
- The README describes recomputing metrics from ledger updates and publishing JSON to a BI or dashboard pipeline.github.com · read 5 Oct 2026
- Deployment
- Installation options listed include pip, pipx, uv, Docker, Homebrew, and a shell install script.github.com · read 5 Oct 2026
- Integrations
- The README lists CSV input, JSON output, SARIF for code scanning, an MCP server for AI agents, and a webhook forwarder for SIEM, Slack, and Jira.github.com · read 5 Oct 2026
- License
- The Cognis Open Collaboration License allows personal, internal evaluation, research, and educational use; commercial or production use requires a separate license.github.com · read 5 Oct 2026
- License and commercial use
- The source-available COCL v1.0 license permits personal, internal evaluation, research, and educational use; commercial use requires a separate license.github.com · read 5 Oct 2026
- Maker
- Cognis Digital says it was founded in Wyoming in 2024 and gives its headquarters location as Wyoming, USA.cognis.digital · read 5 Oct 2026
- Maker location and founding
- Cognis Digital says it was founded in Wyoming in 2024.cognis.digital · read 5 Oct 2026
- Metrics report
- Its report includes current MRR, ARR run-rate, active customers, average customer churn, and monthly MRR, churn, and LTV figures.github.com · read 5 Oct 2026
- MRR movement
- The mrr command breaks down latest-month MRR movement into new, expansion, reactivation, contraction, and churned MRR.github.com · read 5 Oct 2026
- Output
- The commands support JSON output and a currency label, with USD as the default currency.github.com · read 5 Oct 2026
- Output formats
- The report and mrr commands support JSON output and a currency label, with USD as the default.github.com · read 5 Oct 2026
- Purpose
- ChurnLens is a self-hosted SaaS metrics tool for MRR, churn, and LTV using Stripe or CSV data.github.com · read 5 Oct 2026
- Reports
- Its full report includes current MRR, ARR run-rate, active customers, average customer churn, and monthly metrics including net-new MRR and LTV.github.com · read 5 Oct 2026
- Security fixes
- Until a tool reaches v1.0, the security policy says only the latest released version receives security fixes.github.com · read 5 Oct 2026
- Security reporting
- The security policy asks users to report vulnerabilities privately by email and says the team aims to acknowledge reports within three business days.github.com · read 5 Oct 2026
- Self-hosting
- The repository describes ChurnLens as self-hostable and says it requires no account.github.com · read 5 Oct 2026
