# Frankfurter Currency Codes List

> Frankfurter Currency Codes List is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns a flat JSON object mapping all ECB/Frankfurter-supported currency codes to their full currency names

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/frankfurter-currencies
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/frankfurter-currency-codes-list-ca28d34d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RSwRdTTo-OyIndu3KtP8A

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 frankfurter-currency-codes-list-ca28d34d -d '<json body>'
```

Example prompt: Can you pull the complete list of currency codes and their full names supported by Frankfurter so I can see which currencies are available for ECB-based exchange rate lookups?

## When to prefer this

Use this endpoint when you need to discover or validate which currency codes are supported by the Frankfurter/ECB exchange rate system before making rate or conversion requests. Ideal for populating dropdowns, validating user-supplied currency codes, or building currency-aware applications that rely on ECB data.

## Known failure modes

- Network or upstream Frankfurter API unavailability returns a non-200 error
- Payment failure (x402) if USDC not provided, returning 402 Payment Required
- Unexpected empty or malformed JSON if upstream ECB data is unavailable

## How this service works

Full list of currency codes and names supported by Frankfurter (ECB set). No params; flat code-to-name object. Returns JSON.

## Output

A flat JSON object where each key is an ISO currency code (e.g. 'USD', 'EUR', 'GBP') and each value is the full human-readable currency name (e.g. 'US Dollar', 'Euro', 'British Pound'). No parameters required; returns the full set of currencies supported by the Frankfurter ECB dataset.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/frankfurter-currency-codes-list-ca28d34d/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)