# R&D Expenditure as Share of GDP by Country

> R&D Expenditure as Share of GDP by Country is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Returns the latest research and development expenditure as a percentage of GDP for every country worldwide.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/rd-expenditure-gdp
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/r-d-expenditure-as-share-of-gdp-by-country-47c9464f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ojoLy0rC1UgHLfzEZHWzh

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability r-d-expenditure-as-share-of-gdp-by-country-47c9464f -d '<json body>'
```

Example prompt: Can you pull the latest R&D expenditure as a share of GDP for every country in the world and tell me which ones are spending the most on research and development?

## When to prefer this

Use this endpoint when you need a global snapshot of R&D investment intensity (as % of GDP) across all countries in a single call, without needing to filter by country or year — ideal for comparative analysis, rankings, or enriching country-level datasets with innovation metrics.

## Known failure modes

- Payment failure or insufficient USDC balance — payment required at $0.02 per call
- Upstream data source unavailable — may return 503 or empty dataset
- Stale data if underlying World Bank or similar dataset has not been updated recently

## How this service works

Latest research and development expenditure as a share of GDP across every country. Returns JSON.

## Output

A JSON object containing the latest R&D expenditure as a percentage of GDP for every country, with one value per country or region.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/r-d-expenditure-as-share-of-gdp-by-country-47c9464f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)