ChurnLens
ChurnLens is a self-hosted SaaS metrics tool for tracking MRR, churn, and LTV from Stripe or CSV data.
What ChurnLens is
ChurnLens is a self-hosted SaaS metrics tool for tracking MRR, churn, and LTV from Stripe or CSV data. Its reports cover current MRR, ARR run-rate, active customers, average customer churn, and monthly measures such as net-new MRR and LTV. The `mrr` command separates the latest month’s MRR movement into new, expansion, reactivation, contraction, and churned amounts. Both reporting commands can return JSON and accept a currency label; USD is the default. ChurnLens can recompute metrics from ledger updates and send JSON to a BI or dashboard pipeline. It also offers SARIF output for code scanning, an MCP server for AI agents, and webhook forwarding for SIEM, Slack, and Jira. Installation options include pip, pipx, uv, Docker, Homebrew, and a shell script. The repository describes it as self-hostable and requiring no account. Its source-available license permits personal, internal evaluation, research, and educational use; commercial or production use requires a separate license. Pricing is on request.
Good
- Reports MRR, ARR run-rate, churn, active customers, and LTV.
- Breaks MRR movement into five categories.
- Supports CSV input and JSON output.
- Offers Docker and other installation options.
Watch out
- Commercial or production use requires a separate license.
- Pricing is available on request.
- Only the latest release receives security fixes before v1.0.
Who it suits
ChurnLens suits teams that want to calculate subscription metrics from billing data and feed reports into dashboards, agents, or CI workflows. It may fit organizations able to self-host and work within its licensing terms.
Verdict
ChurnLens brings subscription metrics and automation outputs together in a self-hostable tool. Check the license and request pricing before adopting it for commercial or production use.
The facts
Each one read from ChurnLens's own pages, with the date it was checked.
What it does
- 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.checked 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.checked 5 Oct 2026
- Automation
- The README describes recomputing metrics from ledger updates and publishing JSON to a BI or dashboard pipeline.checked 5 Oct 2026
- Deployment
- Installation options listed include pip, pipx, uv, Docker, Homebrew, and a shell install script.checked 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.checked 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.checked 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.checked 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.checked 5 Oct 2026
- MRR movement
- The mrr command breaks down latest-month MRR movement into new, expansion, reactivation, contraction, and churned MRR.checked 5 Oct 2026
- Output
- The commands support JSON output and a currency label, with USD as the default currency.checked 5 Oct 2026
- Output formats
- The report and mrr commands support JSON output and a currency label, with USD as the default.checked 5 Oct 2026
- Purpose
- ChurnLens is a self-hosted SaaS metrics tool for MRR, churn, and LTV using Stripe or CSV data.checked 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.checked 5 Oct 2026
- Security fixes
- Until a tool reaches v1.0, the security policy says only the latest released version receives security fixes.checked 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.checked 5 Oct 2026
- Self-hosting
- The repository describes ChurnLens as self-hostable and says it requires no account.checked 5 Oct 2026
- Supported security versions
- Until the tool reaches v1.0, the security policy says only the latest released version receives security fixes.checked 5 Oct 2026
The company
- Headquarters
- Sheridan, Wyoming, United Stateschecked 28 Sep 2026
- Maker
- Cognis Digital says it was founded in Wyoming in 2024 and gives its headquarters location as Wyoming, USA.checked 5 Oct 2026
- Maker location and founding
- Cognis Digital says it was founded in Wyoming in 2024.checked 5 Oct 2026
Where it runs
- Platforms
- The README lists Linux, macOS, Windows, Docker, and cloud deployment on AWS, Azure, GCP, or Kubernetes.checked 5 Oct 2026
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