Data Contract Python Packages

datacontract-cli

Open-source data contract testing for Snowflake, Databricks, BigQuery, Kafka & 15 more. Built on the Open Data Contract Standard (ODCS). MIT.

dac

Python Data as Code core implementation

vowl

A validation engine for Open Data Contract Standard (ODCS) data contracts. Define your validation rules once in a declarative YAML contract and get rich, actionable reports on your data's quality.

data-contract-registry

Schema registry for data contracts. Semver versioning, compatibility checks (backward/forward/full), ownership, freshness SLAs. Bridges to procurement-decision-api.

cs2df

Implementation-neutral CS2 demo ZIP data contract with schemas, validators, TypeScript types, and the cs2df Python exporter.

folio-kit

Portable, AI-native data sheets.

datamesh

A collection of tools for Data Mesh architectural approach. Data Contract validation against Open Data Contract Standards.

semapact

Open-source lifecycle governance for ODCS data contracts: schema evolution, breaking-change detection, version policy, GitOps, and Databricks Unity Catalog integration.

cognimesh

Zero-code data mesh control plane: visual Step Functions pipelines, Vaquar PVDM proof-gated writes, AWS Design Review with inline fixes, Bedrock Agent Builder, marketplace & operations. Docker, PyPI, Terraform.