Schema Validation Python Packages

arnio

C++-accelerated data quality toolkit for Python: clean CSVs, profile messy datasets, validate schemas, and work smoothly with pandas.

gqlalchemy

GQLAlchemy is a library developed with the purpose of assisting in writing and running queries on Memgraph. GQLAlchemy supports high-level connection to Memgraph as well as modular query builder.

json-structure

Official SDKs for JSON Structure schema and instance validation

agent-friend

Find the MCP schema issues eating your context window. 156 checks. Grade A+ through F. ESLint for MCP.

typedframe

Typed wrappers over pandas DataFrames with schema validation

phx-filters

Validation and data pipelines made easy!

se-manifest-schema

Canonical SE_MANIFEST.toml schema for Structural Explainability; dependency-free base layer for manifest validation.

pydictable

Python object serializer/deserializer and schema validator with extendability!

logging-objects-with-schema

This library provides a logger subclass built on top of the standard `logging` module that strictly controls additional `extra` fields using a JSON schema.

pdbe-mmcif-validator

Real-time VSCode extension and standalone Python script for validating mmCIF/CIF files against the PDBx/mmCIF dictionary or any CIF dictionary.

metamessage

MetaMessage（mm）是一個結構化數據交換協議。自描述、自約束、自示例，實現了無損數據交換，是一種原生適配 AI + 人類 + 機器的下一代通用協議。

mcp-json-yaml-toml

A structured data reader and writer like 'jq' and 'yq' for AI Agents

py-toolguard

Cloudflare for AI Agents. 7-layer security interceptor and observability dashboard.

image-text-structurizer

A new package that processes user-provided text descriptions of images and returns structured, validated outputs using pattern matching. It ensures that the generated content adheres to a predefined f

llm-promptguard

Reliable, structured, production-safe LLM outputs with schema validation and auto-repair

tool-scan

Security scanner for MCP (Model Context Protocol) tools

driftbrake

A schema contract guard for data pipelines. Detects, classifies, and reports schema changes in PostgreSQL databases.

pydata-constraints

The easiest way to validate your data consistency. Ensure the quality of your files without writing code.

kohi

A powerfull schema validator

validatelite

ValidateLite: A lightweight CLI for database schema validation and data quality checks. Ideal for CI/CD, ETL, and data pipelines.

text-parsematch

text-parsematch processes text input with pattern matching and retries to ensure structured, validated output for data extraction and content categorization.

oblate

Python library for data validation

vf

Validation Functions (for py dicts)

waveframe-stamp

Schema-agnostic artifact and metadata validator producing deterministic diagnostics for governed workflows.