# Aurenic US Treasury Exchange Rate Lookup

> Aurenic US Treasury Exchange Rate Lookup is a paid API for AI agents from api.aurenic.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Returns the US Treasury's official reported exchange rate for a specified currency

## Facts

- Endpoint: GET https://api.aurenic.org/treasury/exchange-rates/:currency?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aurenic-us-treasury-exchange-rate-lookup-49305ccb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_a2-FDUFZ-JTmt1U1W-DQn

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 aurenic-us-treasury-exchange-rate-lookup-49305ccb
```

Example prompt: What is the US Treasury's official reported exchange rate for the Euro right now?

## When to prefer this

Use this endpoint when you specifically need the US Treasury's official exchange rate for government compliance, tax reporting, or federal contract purposes — not for live market rates or trading. It is distinct from real-time forex market rates and is authoritative for IRS and federal agency use cases.

## Known failure modes

- Invalid or unsupported currency code returns an error or empty result
- Currency not tracked by the US Treasury returns no data
- Network timeout or service unavailability
- Stale data if Treasury has not published updated rates recently

## How this service works

US Treasury reported exchange rate for a currency

## Output

Returns the US Treasury's officially reported exchange rate for the requested currency, which is used for government reporting, tax, and compliance purposes. Typically includes the exchange rate value and the currency identifier.

## 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"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "currency"
     ],
     "properties": {
      "currency": {
       "type": "string"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "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/aurenic-us-treasury-exchange-rate-lookup-49305ccb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.aurenic.org](https://www.zero.xyz/host/api.aurenic.org/llms.txt)