Introducing WorldOfTaxonomy

TL;DR: WorldOfTaxonomy connects 1,000+ classification systems, 1.2M+ codes, and 321K+ crosswalk edges into one queryable knowledge graph. REST API, MCP server, and web app - all open source.

The problem

A truck driver in the US is five different codes in five different systems:

System	Code	Region
NAICS 2022	484	North America
SOC 2018	53-3032	United States
ISCO-08	8332	Global (ILO)
NACE Rev 2	49.4	European Union
ISIC Rev 4	4923	Global (UN)

All five mean the same thing. Figuring that out manually costs hours. Doing it at scale costs entire teams.

Classification systems are the invisible backbone of global commerce, healthcare, trade, and labor markets. But they were never designed to talk to each other.

What we built

graph LR
  subgraph Sources["1,000 Systems"]
    NAICS["NAICS"]
    ISIC["ISIC"]
    ICD["ICD"]
    HS["HS"]
    MORE["...997 more"]
  end
  subgraph Graph["Knowledge Graph"]
    NODES["1.2M+ Nodes"]
    EDGES["321K+ Edges"]
  end
  subgraph Surfaces["Three Access Points"]
    API["REST API"]
    MCP["MCP Server"]
    WEB["Web App"]
  end
  Sources --> Graph
  Graph --> Surfaces

The knowledge graph connects industry codes (NAICS, ISIC, NACE), health codes (ICD, LOINC, SNOMED), trade codes (HS, UNSPSC), occupation codes (SOC, ISCO, ESCO), regulatory frameworks, and hundreds of domain-specific taxonomies.

The REST API lets you search, translate, and browse:

# Translate NAICS 4841 to all equivalent systems
curl "https://wot.aixcelerator.ai/api/v1/systems/naics_2022/nodes/4841/translations"

# Search "hospital" across all 1,000 systems
curl "https://wot.aixcelerator.ai/api/v1/search?q=hospital&grouped=true"

The MCP server gives AI agents structured tool access - 25 tools for search, translation, hierarchy navigation, and system comparison. Works with Claude, Cursor, VS Code, Windsurf, and any MCP-compatible client.

By the numbers

Metric	Count
Classification systems	1,000+
Individual codes	1,212,000+
Crosswalk edges	321,000+
Countries profiled	249
Categories	16
MCP tools	25

Open source

The entire project is MIT-licensed. Two commands to run it locally:

git clone https://github.com/colaberry/WorldOfTaxonomy.git
cd WorldOfTaxonomy && docker compose up

Web app at localhost:3000. API at localhost:8000. No restrictions.

What is next

We are finalizing hosted plans so you can use the API and MCP server without self-hosting. The full knowledge graph is available on every plan.