# World Bank Tax Revenue (% of GDP) by Country

> World Bank Tax Revenue (% 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 World Bank tax revenue as a percentage of GDP for every country and region, one value per entity, with no input parameters required.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/worldbank-tax-revenue-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/world-bank-tax-revenue-of-gdp-by-country-80832d36
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ki9zXGAqh43TtMBjDD2L8

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 world-bank-tax-revenue-of-gdp-by-country-80832d36 -d '<json body>'
```

Example prompt: Can you pull the latest World Bank data on tax revenue as a percentage of GDP for every country and region in one go?

## When to prefer this

Use this endpoint when you need a comprehensive, zero-configuration snapshot of tax revenue as a percentage of GDP for all countries and regions at once, sourced from World Bank data. Prefer it over building your own World Bank API integration or when you need a pay-per-call approach without managing API keys.

## Known failure modes

- Upstream World Bank data unavailable — service may return an error or empty dataset
- Payment not processed or x402 protocol failure — returns 402 or payment-related error
- Stale data if World Bank has not updated the indicator recently — latest value may be several years old
- Network timeout if the downstream World Bank API is slow to respond

## How this service works

Latest tax revenue (% of GDP) for every country and region, one value each. No params. Returns JSON.

## Output

A JSON object containing the latest available World Bank tax revenue (% of GDP) indicator value for every country and region — one entry per country/region, no parameters needed.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/world-bank-tax-revenue-of-gdp-by-country-80832d36/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)