# DocSchema > DocSchema is an open standard for AI-readable JSON schemas that define document types, entity types, conditional requirements, and workflows for Intelligent Document Processing (IDP). It powers the PIWI platform and is designed for community adoption. Important notes: - DocSchema defines four core primitives: Document Types, Entity Types, Conditional Requirements, and Workflows - All schemas are validated against the `docschema.schema.json` meta-schema - Configurations are organized by business vertical (e.g. Real Estate, Insurance) and country - The standard supports 33 countries with 100+ document type schemas - WebMCP tools are available on this site for AI agents to programmatically query all schemas ## Specification - [DocSchema Specification](https://docschema.piwi.ai/SPECIFICATION.md): Full technical specification of the four core primitives - [Contributing Guide](https://docschema.piwi.ai/CONTRIBUTING.md): How to contribute new verticals, document types, and entity types ## Business Verticals - [Accountant Italy](https://docschema.piwi.ai/verticals?slug=accountant-it): Italian accountant schemas with invoices, tax forms, and fiscal documents - [Car Dealership Italy](https://docschema.piwi.ai/verticals?slug=car-dealership-it): Italian car dealership schemas for vehicle registration, insurance, and sales - [Insurance Italy](https://docschema.piwi.ai/verticals?slug=insurance-it): Italian insurance schemas for policies, claims, and compliance - [Real Estate Italy](https://docschema.piwi.ai/verticals?slug=real-estate-it): Italian real estate schemas for contracts, cadastral data, and property records - [Real Estate USA](https://docschema.piwi.ai/verticals?slug=real-estate-us): US real estate schemas for deeds, titles, and closing documents ## Document Library - [Document Library](https://docschema.piwi.ai/documents): Browse all 100+ document schemas organized by country - [GitHub Repository](https://github.com/piwi-ai/business-schema-configurations): Source code and JSON configurations ## Optional - [npm Package](https://www.npmjs.com/package/@piwi.ai/business-schema-configurations): Install via npm for programmatic access - [PIWI Platform](https://piwi.ai): The IDP platform powered by DocSchema