# World Of Taxonomy

> Unified Global Classification Knowledge Graph
> 1,000+ systems, 1.3M+ nodes, 326K+ crosswalk edges.
> Open source (MIT). Data is informational only - use at your own risk.

Full classification guides available at: https://worldoftaxonomy.com/guide/
Full LLM reference: https://worldoftaxonomy.com/llms-full.txt

## Guide Pages

- [Getting Started with World Of Taxonomy](https://worldoftaxonomy.com/guide/getting-started)
- [MCP Setup Guide for Claude Desktop, Cursor, Zed, and other AI clients](https://worldoftaxonomy.com/guide/mcp-setup)
- [Systems Catalog - All 1,000+ Classification Systems](https://worldoftaxonomy.com/guide/systems-catalog)
- [Crosswalk Map - How Classification Systems Connect](https://worldoftaxonomy.com/guide/crosswalk-map)
- [Industry Classification Guide - Which System to Use](https://worldoftaxonomy.com/guide/industry-classification)
- [Medical and Health Classification Systems Compared](https://worldoftaxonomy.com/guide/medical-coding)
- [Trade and Product Classification Guide](https://worldoftaxonomy.com/guide/trade-codes)
- [Occupation Classification Systems Compared](https://worldoftaxonomy.com/guide/occupation-systems)
- [Categories and Sectors - How Systems Are Organized](https://worldoftaxonomy.com/guide/categories-and-sectors)
- [Domain Taxonomies vs Official Standards](https://worldoftaxonomy.com/guide/domain-vs-standard)
- [Data Quality and Provenance](https://worldoftaxonomy.com/guide/data-quality)
- [Inclusion Policy - Which Systems Belong in World Of Taxonomy](https://worldoftaxonomy.com/guide/inclusion-policy)
- [Web Vocabularies - schema.org, SKOS, and Related Type Systems](https://worldoftaxonomy.com/guide/web-vocabularies)
- [Regulatory and Compliance Standards - HIPAA, GDPR, NIST, ISO, OSHA, and 116 more](https://worldoftaxonomy.com/guide/regulatory-standards)
- [Financial Systems - BICS, TRBC, ICB, GICS, FIBO, IFRS, CFI, Basel, and 50 more](https://worldoftaxonomy.com/guide/financial-systems)
- [Academic and Research Classification - arXiv, MSC, JEL, Dewey, LCC, AACSB, ABET, EQF, SFIA, and more](https://worldoftaxonomy.com/guide/academic-research)
- [Environmental Standards and Scales - BREEAM, LEED, IUCN, CITES, GHG Protocol, SDG, TNFD, Beaufort, Köppen, and more](https://worldoftaxonomy.com/guide/environmental-standards)
- [Geographic Classification - ISO 3166, UN M.49, NUTS, FIPS, GeoNames, Köppen](https://worldoftaxonomy.com/guide/geographic-classification)
- [Clinical Scales and Specialty Codes - APGAR, ASA, BMI, ICD variants, CPT, HCPCS, MS-DRG, RxNorm, NCI Thesaurus, FHIR, and more](https://worldoftaxonomy.com/guide/clinical-scales-and-codes)
- [Process and Activity Frameworks - APQC PCF, SCOR, ITIL 4, COBIT, PMBOK](https://worldoftaxonomy.com/guide/process-frameworks)
- [Technology Standards and Miscellaneous Specifications](https://worldoftaxonomy.com/guide/tech-standards-misc)
- [System Architecture and Data Flows](https://worldoftaxonomy.com/guide/architecture)

## API
Base URL: https://worldoftaxonomy.com/api/v1

## MCP Server
Install: python -m world_of_taxonomy mcp
Transport: stdio, 26 tools, wiki resources