Statistics Finland · Annual vintages: the population and vital-statistics tables roll forward each spring (json-stat2 'updated' observed live 2026-07-31: 11rb 2026-04-01, the synt/kuol tables 2026-04-24). The CPI runs on a monthly release cycle; its annual tables (11xc, 122q) refresh each January (updated 2026-01-14).
License: cc-by-4.0 · official terms. Attribution text and per-series license flags ride in every API envelope.
Quickstart
Latest observations, with provenance and citation on every value:
curl "https://starwell.dev/api/starwell/v1/sources/statfin-pxweb/series/12dt:tfr/observations?latest=12"
A computed, cited answer from this source:
curl -X POST "https://starwell.dev/api/starwell/v1/answer" \
-H "Authorization: Bearer dlk_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"question": "What is the latest Total fertility rate?", "source": "statfin-pxweb"}'
Data reads need no key; answers do. Keys are free at /account; a keyless sample lives at GET /api/starwell/v1/answer/demo.
As MCP tools in Claude, Cursor, or any agent framework:
claude mcp add --transport http starwell https://starwell.dev/api/starwell/mcp
Data series
| Series | Indicator | Geography | Unit | Freq | Coverage |
|---|---|---|---|---|---|
| 11rb:vaerak-vaesto | Population 31 Dec | Finland | number | annual | 1750-01-01 .. 2025-01-01 |
| 122q:Vuosimuutos | Annual change (%) | Finland | per cent | annual | 1980-01-01 .. 2025-01-01 |
| 12dt:tfr | Total fertility rate | Finland | number | annual | 1776-01-01 .. 2025-01-01 |
| 12al:kuol-keskiv | Mean population | Finland | number | annual | 1751-01-01 .. 2025-01-01 |
| 12aq:imr | Infant mortality, per mille | Finland | per mil | annual | 1751-01-01 .. 2025-01-01 |
| 11xc:indeksipisteluku | Point figure | Finland | index point | annual | 2015-01-01 .. 2025-01-01 |
| 11rb:vaerak-kokmuutos | Increase of population | Finland | number | annual | 1750-01-01 .. 2025-01-01 |
| 12dj:synt-vm01 | Live births | Finland | number | annual | 1751-01-01 .. 2025-01-01 |
| 12al:cdr | Crude death rate, per mille | Finland | per mil | annual | 1751-01-01 .. 2025-01-01 |
| 12dr:cbr | Crude birth rate, per mille | Finland | per mil | annual | 1751-01-01 .. 2025-01-01 |
| 12af:kuol-vm11 | Deaths | Finland | number | annual | 1751-01-01 .. 2025-01-01 |
| 11xc:khi-vuosimuutos | Annual change (%) | Finland | per cent | annual | 2015-01-01 .. 2025-01-01 |