Retention Python Packages

cratedb-toolkit

CrateDB Toolkit, an SDK for CrateDB and CrateDB Cloud.

django-resurrected

Soft-delete functionality for Django projects with relationship-aware deletion and restoration.

factcat

Open-source alternative to Amplitude and Mixpanel that runs in your own data warehouse — generates SQL, never ingests.

metricproof

Python analytics QA package that audits KPI formulas, denominators, cohort integrity, population preservation, and cross-table reconciliation.

dotplot-mcp

Product analytics MCP server for early-stage startups: user behavior analysis, dot plots, aha moment discovery, retention curves, onboarding funnels, churn analysis — YC methodology, works with Claude Code & Cursor

ratingmodels

Manual and experience rating, credibility blending, and rate indication with an audit trail; GLM relativities and frequency-severity modeling.

growth-mcp

MCP server for growth marketing - campaign design, retention analysis, churn prediction, A/B testing

btrfs-sxbackup

Incremental btrfs snapshot backups with push/pull support via SSH

insurance-demand

Deprecated — merged into insurance-optimise

s3v

Convenient CLI tool to work with versioned AWS S3 buckets

insurance-survival

Survival models for insurance — cure models, CLV, lapse tables, MLflow wrapper

langchain-vecr-compress

Deterministic, auditable LLM context compression — regex whitelist guarantees structured facts (IDs, URLs, dates, code) survive. Two layers: retention + heuristic knapsack.

insurance-uplift

HTE uplift modelling for retention — CausalForestDML, Qini/AUUC, PolicyTree, ENBP constraint, Consumer Duty fairness audit

vecr-compress

Deterministic, auditable LLM context compression — regex whitelist guarantees structured facts (IDs, URLs, dates, code) survive. Two layers: retention + heuristic knapsack.

llama-index-postprocessor-vecr

Deterministic, auditable LLM context compression — regex whitelist guarantees structured facts (IDs, URLs, dates, code) survive. Two layers: retention + heuristic knapsack.