Countries, indicators, topics and freshness metadata; ranked league tables for any indicator; and the observation endpoint itself — an indicator across the countries and years you ask for, as JSON or CSV. Responses carry the source, the licence and the attribution string alongside the values, so what you build stays citable.

Requests are authenticated with a bearer key you create in your account. Browsing the catalogue — indicators, topics, metadata — is free; only the endpoints that return observation rows are metered, at one credit per row. Verifying your email grants 2,000 credits, which is 2,000 rows before you have paid anything. Pricing has the rate and the worked examples.

A key does not unlock a licence we do not hold. Only indicators marked redistributable are ever served, display-only series stay display-only, and attribution travels with the data — exactly as on the portal. The sources page lists the licence and latest data year for every provider.

The quickstart takes you from signing up to a first metered call, with copy-paste clients in cURL, JavaScript, Python, R and Go. Every endpoint has its own page with real example responses, parameters and error cases.