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World Bank Open Data (World Development Indicators)

The World Bank Group · World Development Indicators is republished roughly quarterly (dataset lastupdated 2026-07-13 observed 2026-07-22), with periodic historical revisions — census rebasing and national-accounts rebenchmarking can rewrite settled years.

Any data item in this source's 29,490 indexed datasets can be requested by its source-native series id (GET /api/starwell/v1/sources/worldbank/series/<id>); the first request fetches it live from the official source, serves it with provenance, and keeps it. Search the index or list datasets with GET /api/starwell/v1/sources/worldbank/datasets?q=.

License: cc-by-4.0 · official terms. Attribution text and per-series license flags ride in every API envelope.

Source API docs

Quickstart

Latest observations, with provenance and citation on every value:

curl "https://starwell.dev/api/starwell/v1/sources/worldbank/series/SP.POP.TOTL:IND/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 Population, total?", "source": "worldbank"}'

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