StatsWales MCP Server

StatsWales

StatsWales is the Welsh Government's official statistics portal. The v1 API provides structured access to 700+ published datasets across 11 topics.

Topics (top-level)

1. Business, economy and labour market
2. Crime, fire and rescue
3. Education and training
4. Environment, energy and agriculture
5. Finance and tax
6. Health and social care
7. Housing
8. People, identity and equality
9. Poverty
10. Transport
11. Welsh language

Data Model

• Dataset — Identified by UUID. Has title, publish dates, and metadata.
• Topic — Hierarchical (top-level → sub-topics → datasets). Identified by integer ID.
• View — Paginated tabular view of dataset data. Can be filtered by dimensions.
• Filters — Each dataset has dimension filters (e.g. area, year, measure).

Pagination

• List endpoints support page_number and page_size parameters
• Default page size varies; recommended max is 500
• The datasets list endpoint returns count for total results

Gotchas

• Dataset IDs are UUIDs (e.g. "ea3a158f-9a3e-4660-be27-00bb281cce50")
• Topic IDs are integers (e.g. 1, 8, 13)
• The /{dataset_id}/view endpoint can return large payloads; use page_size
• Download formats: csv, ods, xlsx, json
• Some datasets have Welsh-language titles (bilingual data)