# Suverse FX Latest Pair

> Suverse FX Latest Pair is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns the latest ECB reference exchange rate for a single currency pair, providing base currency, quote currency, date, and converted rate via Frankfurter.

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/suverse-fx-latest-pair
- 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/suverse-fx-latest-pair-d680ce8c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_V2jMZR2DcwqNE3T2hHUPn

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 suverse-fx-latest-pair-d680ce8c -d '<json body>'
```

Example prompt: What's the latest ECB reference exchange rate from USD to EUR? I need the current official rate for a pricing calculation.

## When to prefer this

Use this endpoint when you need a single, authoritative ECB reference rate for exactly one currency pair without requiring an API key. It is ideal for pricing math, invoice conversion, and treasury snapshots where the official European Central Bank rate is the accepted standard. Prefer it over broader multi-currency endpoints when you only need one pair and want minimal payload complexity.

## Known failure modes

- Unsupported or invalid currency code returns an error — ECB only covers a limited set of currencies
- ECB rates are not updated on weekends or holidays, so the date returned may lag behind the current calendar date
- Network or upstream Frankfurter service unavailability returns a 5xx error
- Malformed request body or missing required fields returns a 4xx validation error
- Payment failure (x402) if USDC balance is insufficient

## How this service works

Latest ECB reference exchange rate from one currency to another via Frankfurter, no key. Returns base, date, and the converted rate. For AI agents doing reliable fiat conversion, treasury, and pricing math.

## Output

Returns a JSON object with the base currency code, the target currency code, the ECB reference date of the rate, and the numeric exchange rate for that pair.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "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/suverse-fx-latest-pair-d680ce8c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)