# Stride20k FX Rate Lookup

> Stride20k FX Rate Lookup is a paid API for AI agents from gateway.stride20k.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns the live foreign exchange rate between two currency codes (e.g. USD→EUR), sourced from the ECB via Frankfurter, as normalized JSON.

## Facts

- Endpoint: GET https://gateway.stride20k.com/fx/%7Bbase%7D/%7Bquote%7D
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stride20k-fx-rate-lookup-0b2c5481
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6BviOIsiraBywxO3P0_EU

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 stride20k-fx-rate-lookup-0b2c5481
```

Example prompt: What's the current exchange rate from USD to EUR? I want to know today's rate sourced from ECB data.

## When to prefer this

Choose this endpoint when you need normalized, schema-stable FX rates backed by ECB data, with no account setup — just pay $0.002 USDC per call via x402. Ideal for agents that need reliable, consistently formatted currency data without managing API keys or subscriptions. Prefer over raw Frankfurter API when you want a single unified gateway that also covers crypto, gas, and other financial data types.

## Known failure modes

- Unsupported or invalid currency code returns an error response
- ECB-sourced rates may be delayed by one business day (not truly real-time intraday)
- Rate may be cached; the 'cached' flag in meta indicates staleness
- Currencies not covered by the ECB/Frankfurter dataset will not be available
- Payment failure via x402 will block access before the data is returned

## How this service works

Agent data gateway plus the live x402 market feed. Normalized, schema-stable JSON for crypto prices, DeFi TVL, on-chain DEX pools, gas, FX, US Treasury yields, US weather, WHOIS, DNS, email validation, web-page extraction, tech news, Wikipedia, npm/PyPI package health, ERC-20 token-risk scoring, and composed domain dossiers, plus x402 ecosystem analytics and metered LLM inference. Pay per call with USDC via the x402 protocol; no accounts, no API keys.

## Output

A JSON object with ok:true, a data object containing the base currency, quote currency, exchange rate (float), and the date of the rate, plus a meta object with cache status, source name (e.g. 'frankfurter (ECB)'), and the timestamp the rate was fetched.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {
   "base": "USD",
   "date": "2026-07-03",
   "rate": 0.87352,
   "quote": "EUR"
  },
  "meta": {
   "cached": false,
   "source": "frankfurter (ECB)",
   "fetchedAt": "2026-07-04T00:00:00.000Z",
   "attribution": null
  },
  "endpoint": "/fx/:base/:quote"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stride20k-fx-rate-lookup-0b2c5481/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gateway.stride20k.com](https://www.zero.xyz/host/gateway.stride20k.com/llms.txt)