# clonecho FX Daily Time Series

> clonecho FX Daily Time Series is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns a daily FX exchange rate time series between two currencies for a specified date range

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/fx-timeseries
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/clonecho-fx-daily-time-series-96d8aec7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eZzh9x-d4Dw2xajgzNDYU

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 clonecho-fx-daily-time-series-96d8aec7 -d '<json body>'
```

Example prompt: Can you pull the daily USD to EUR exchange rates from January 1 2024 through February 1 2024 so I can chart how the dollar moved against the euro over that period?

## When to prefer this

Use this endpoint when you need a historical daily FX time series for a specific currency pair over a defined date range, especially for financial analysis, charting, or reporting. Prefer this over spot-rate or live-rate endpoints when historical data spanning multiple days is needed. Ideal for agents building forex dashboards, backtesting currency strategies, or calculating average rates over a period.

## Known failure modes

- Invalid date format — start or end date not in YYYY-MM-DD format returns an error
- Unsupported currency code — unrecognized base or symbol currency returns an error
- Date range too wide or reversed (start after end) may return empty or error response
- Network or payment failure — x402 payment of $0.02 USDC not processed results in 402 response
- Missing required parameters — omitting start, end, base, or symbol returns a bad request error

## How this service works

MARKETS: daily FX time series between two dates for one pair (?start=2024-01-01&end=2024-02-01&base=USD&symbol=EUR). Returns JSON.

## Output

A JSON object containing daily exchange rate values for the requested currency pair (e.g. USD/EUR) across each day in the specified date range, indexed by date.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clonecho-fx-daily-time-series-96d8aec7/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)