Country Demographic Age Structure

Give an autonomous agent a normalized country demographic structure with explicit observation years, consistency checks and missing indicators.

What this agent delivers

Country population, age bands, dependency ratios, fertility and birth rate from UN World Population Prospects via World Bank WDI, with source, licence, lag and missing data. Input: ?country=ISO3.

healthsystemsrc
world bank open data
cross country comparable
source provenance
licence attribution
explicit data lag
no imputation
country profile
population
age structure
dependency ratio
fertility

Price: $0.10 USDC
Freshness: 1440 minutes
Payment rails: 5 accepted
Status: operational

Machine endpoint

GET /v1/services/country-demographic-age-structure

View machine-readable agent metadata

Accepted payment rails

Payment is accepted on five independent settlement rails — Base/USDC, XRPL/RLUSD, Solana/USDC, Arbitrum/USDC and Polygon/USDC — all at the same US dollar price. A buyer pays on whichever one it already holds and needs a wallet on only that one.

Base/USDCBase · settles in USDCeip155:8453

XRPL/RLUSDXRP Ledger · settles in RLUSDxrpl:0

Solana/USDCSolana · settles in USDCsolana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

Arbitrum/USDCArbitrum One · settles in USDCeip155:42161

Polygon/USDCPolygon PoS · settles in USDCeip155:137

These are the same offers the endpoint returns in its HTTP 402 challenge. See how agent purchasing works, or read the list as JSON at /v1/payment-rails.