# StackData

> One index over 58,985 public statistical datasets from China Population Censuses (NBS), China Statistical Yearbook (NBS), Eurostat, EU TARIC Tariff Measures, ILOSTAT, Japan Customs Tariff Schedule, OECD Data Explorer, UK Online Trade Tariff, UNICEF Data Warehouse, US Harmonized Tariff Schedule, World Bank Indicators — searchable in any language, resolvable into tables over a JSON API.

Every dataset has a page under /d/ with cadence, coverage, formats, licence
and a schema.org Dataset record. The API needs no key for search and catalog
reads; data resolution is free-tier metered.

## Catalog
- [Browse all datasets](https://stackdata.io/browse/): hub pages by source
- [China Population Censuses (NBS)](https://stackdata.io/browse/cn-nbs-census/): 3,800 datasets from National Bureau of Statistics of China
- [China Statistical Yearbook (NBS)](https://stackdata.io/browse/cn-nbs-yearbook/): 14,710 datasets from National Bureau of Statistics of China
- [Eurostat](https://stackdata.io/browse/eu-estat-sdmx/): 8,160 datasets from European Commission (Eurostat)
- [EU TARIC Tariff Measures](https://stackdata.io/browse/eu-taric/): 2 datasets from European Commission (DG TAXUD)
- [ILOSTAT](https://stackdata.io/browse/ilo-sdmx/): 1,215 datasets from International Labour Organization
- [Japan Customs Tariff Schedule](https://stackdata.io/browse/jp-tariff/): 1 datasets from Japan Customs (Ministry of Finance)
- [OECD Data Explorer](https://stackdata.io/browse/oecd-sdmx/): 1,552 datasets from OECD
- [UK Online Trade Tariff](https://stackdata.io/browse/uk-tariff/): 1 datasets from HM Revenue & Customs
- [UNICEF Data Warehouse](https://stackdata.io/browse/unicef-sdmx/): 53 datasets from UNICEF
- [US Harmonized Tariff Schedule](https://stackdata.io/browse/us-hts/): 1 datasets from US International Trade Commission
- [World Bank Indicators](https://stackdata.io/browse/wb-indicators/): 29,490 datasets from World Bank

## API
- [API reference](https://api.stackdata.io/doc): OpenAPI-documented JSON API
- [Search](https://api.stackdata.io/v1/search?q=unemployment): any language, never metered
- [Catalog export](https://api.stackdata.io/v1/catalog): the whole catalog, paginated JSON
- [Resolve](https://api.stackdata.io/v1/resolve?q=unemployment%20rate%20in%20japan): question → table plan
- [Tariff lookup](https://api.stackdata.io/v1/tariff?code=8703231900): as-of customs duties, EU/US/UK/JP, with legal citations
- [Stored tables](https://api.stackdata.io/doc#tag/Stored-tables): whole census/yearbook tables with English overlays
- [MCP server](https://api.stackdata.io/mcp): the API as Model Context Protocol tools (search, tables, tariffs, answers)
- [Data manifest](https://api.stackdata.io/.well-known/data-manifest.json): machine-readable coverage, licensing and pricing

## About
- [Method](https://stackdata.io/method.html): how records are normalized
- [Pricing](https://stackdata.io/pricing.html): free tier, paid plans, x402 for agents
- [Attribution](https://stackdata.io/attribution.html): source licences