# Fx Rate

> Fx Rate is a paid API for AI agents from 6xrkjcfa3yrzvefcpvanurzou4.srv.us, paid per call via x402, $0.01/call, status unknown (last checked 2026-11-01).

Returns the live exchange rate for any currency pair, cross-checked from three independent keyless sources with the inter-source spread in basis points

## Facts

- Endpoint: GET https://6xrkjcfa3yrzvefcpvanurzou4.srv.us/fx-rate?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fx-rate-4f37aac1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B9Vcc2_OY7pDgkDuojHTr

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 fx-rate-4f37aac1
```

Example prompt: What's the live exchange rate for USD to EUR right now, and how much do the three data sources agree — show me the inter-source spread?

## When to prefer this

Choose this endpoint when you need a keyless, no-registration FX rate that is cross-checked across three independent sources — particularly useful when rate reliability matters and you want a built-in spread/consistency signal. Prefer over single-source FX APIs when data quality verification is important. At $0.01 USDC per call via x402, it suits agents that need spot checks rather than high-frequency streaming.

## Known failure modes

- Invalid or unsupported currency pair returns an error or empty result
- Payment failure via x402 prevents rate retrieval
- Temporary source unavailability may degrade the three-source cross-check
- Highly exotic currency pairs may not be supported by all three underlying sources
- Network timeout if underlying sources are slow to respond

## How this service works

FX rates API - the live rate for any currency pair from three independent keyless sources, cross-checked, with the inter-source spread in basis points. KEYLESS, no account. ALIAS PATH of /api/fx-rates. via x402

## Output

Returns the live exchange rate for the requested currency pair as derived from three independent keyless data sources, along with the inter-source spread expressed in basis points, enabling confidence assessment of the rate's reliability.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fx-rate-4f37aac1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 6xrkjcfa3yrzvefcpvanurzou4.srv.us](https://www.zero.xyz/host/6xrkjcfa3yrzvefcpvanurzou4.srv.us/llms.txt)