# Gross Capital Formation as % of GDP by Country

> Gross Capital Formation as % 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 2026-09-15).

Returns the latest gross capital formation (investment) as a share of GDP for every country in the world as JSON.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/gross-capital-formation-gdp
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gross-capital-formation-as-of-gdp-by-country-0047383d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uGQ8059LI7tyh_QP1jufj

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 gross-capital-formation-as-of-gdp-by-country-0047383d -d '<json body>'
```

Example prompt: Can you pull the latest gross capital formation as a share of GDP for every country in the world? I want to see which nations are investing the most relative to their economy.

## When to prefer this

Use this endpoint when you need a comprehensive, ready-to-use global dataset of gross capital formation (investment) as a share of GDP without needing to query the World Bank API directly. Ideal for economic comparisons, dashboards, or enrichment workflows where you need a single JSON response covering all countries at once.

## Known failure modes

- Payment failure or insufficient USDC balance (x402 payment required, $0.02 per call)
- Upstream data source unavailable — stale or missing data for some countries
- Network timeout or service unavailability returning 5xx error
- Malformed response if underlying World Bank data pipeline has gaps

## How this service works

Latest gross capital formation (investment) as a share of GDP across every country. Returns JSON.

## Output

A JSON array or object containing each country's latest gross capital formation value expressed as a percentage of GDP, likely including country name, country code, year of the latest available data, and the percentage value.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gross-capital-formation-as-of-gdp-by-country-0047383d/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)