misata
Active·★ 71·MIT·Updated 2026-10-26
Misata is a synthetic data generation tool that works by letting you declare the desired outcomes and then generates realistic, relational data that provably matches those targets. Unlike most tools that learn from existing datasets, Misata can generate data from scratch based on plain English, YAML schemas, or existing database schemas, ensuring referential integrity and statistical accuracy.
#synthetic data generation#data generation#outcome-conformant#relational data#data testing#database seeding#statistical realism#privacy-preserving
01
Features
01Outcome-Conformant Generation: Generates data that exactly matches declared aggregates (e.g., revenue curves, fraud rates) without requiring real source data.
02Diverse Schema Input: Supports generating data from plain English descriptions, YAML schema-as-code, existing database schemas, dbt projects, Prisma schemas, or Python dict schemas.
03Statistical Realism & Coherence: Incorporates advanced statistical features like stratified distributions, MAR/MNAR missingness, exact incidence control, time-series autocorrelation, and hierarchical cluster effects for highly realistic data.
04Integrity Proofs & Auditing: Provides an "Oracle report" for verifiable proofs of referential integrity, constraints, and reproducibility, alongside a story_audit for data coherence checks.
05Multi-Locale Support: Automatically detects country context and generates statistically accurate data (names, salaries, IDs, currencies) for 15 built-in locales.
02
Compatibility
Python
Runtime
Verified via docs
SQL Databases (PostgreSQL, MySQL, SQLite)
Integration
Verified via docs
Databricks / Apache Spark
Integration
Verified via docs
Docker
Deployment
Verified via docs
Linux, MacOS, Windows
OS Compatibility
Verified via docs
03
Quick start
1
$ pip install misata
04
Use cases
↳Known-answer testing: Declare the KPI, generate the data, then assert your dbt, Spark, or SQL transform returns exactly that number, providing a ground truth for pipeline tests.
↳Database seeding: Fill development and staging environments with production-like, privacy-safe data, ensuring referential integrity across all tables.
↳Integration tests: Create relational fixtures with foreign key integrity across every table, enabling robust testing of data interactions.
↳Demos and prototypes: Generate realistic numbers, names, and distributions without PII, suitable for building compelling demos and prototypes.
↳Statistical method validation: Create longitudinal, grouped, and multi-site datasets that pass mixed-effects models, ICC tests, and autocorrelation checks.
05
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