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    IAB Content Taxonomy Mapper

    Migrate content taxonomy from IAB 2.x to 3.0

    A local processing tool that migrates content categorization from IAB 2.x standards to IAB 3.0 format. Converts existing taxonomy codes into OpenRTB and VAST-ready category IDs with optional semantic enrichment using embeddings and LLM re-ranking.

    Built for ad tech teams, publishers, and platform engineers migrating to IAB 3.0 without breaking OpenRTB or VAST pipelines.

    IAB taxonomy
    content classification
    IAB 2.x
    IAB 3.0
    OpenRTB
    VAST
    Quick Install:
    pip install iab-mapper

    Use Cases

    1

    IAB 2.x to 3.0 taxonomy migration

    2

    Content categorization for ad tech

    3

    Publisher content classification

    4

    Brand safety taxonomy mapping

    Features

    Deterministic and fuzzy string matching
    Multi-category output per input record
    Local-first processing (no external APIs required)
    Optional AI enrichment (embeddings + LLM) — runs locally via Ollama
    Override support for manual mapping curation
    CLI tool with CSV/JSON I/O

    Video Overview

    Example

    Input (IAB 2.x)

    ["IAB1-3", "IAB19"]

    Output (IAB 3.0)

    ["Arts & Entertainment > Television", "Technology & Computing"]

    Get Started

    Integrations

    OpenRTB
    VAST
    Python
    TypeScript/JavaScript

    Details

    LicenseBSD 2-Clause
    Categorytaxonomy
    Registrypypi
    LatencyLocal / offline
    DeploymentCLI / Python library
    Typical UseBatch migration, not runtime

    Resources

    Documentation

    Learn how to use this connector

    Blog Post

    Read the full guide

    Quick Info

    LicenseBSD 2-Clause
    Categorytaxonomy
    Registrypypi
    LatencyLocal / offline
    DeploymentCLI / Python library
    Typical UseBatch migration, not runtime

    Frequently Asked Questions

    Ready to integrate?

    Get started with IAB Content Taxonomy Mapper in minutes. Check out the documentation or explore the source code on GitHub.

    Need help mapping custom taxonomies or large-scale migrations?

    → Talk to us