# Saylor Innovations FX Currency Converter

> Saylor Innovations FX Currency Converter is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-03).

Converts currency amounts using ECB reference rates for today or any date since 1999

## Facts

- Endpoint: GET https://saylorinnovations.com/api/util/fx?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-fx-currency-converter-749f8054
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KeI5Yr_voczIk0G0OBa_o

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 saylor-innovations-fx-currency-converter-749f8054
```

Example prompt: What's the ECB reference rate to convert 250 USD to EUR and JPY as of today?

## When to prefer this

Choose this endpoint when you need official, authoritative ECB reference exchange rates — especially for compliance, accounting, or financial reporting use cases where ECB rates are the standard. Prefer this over commercial FX APIs when you need historical rates back to 1999, multi-currency batch conversion in a single call, or a low-cost ($0.001) micropayment-based access model without API key setup.

## Known failure modes

- Unsupported or misspelled ISO currency code returns an error or missing entry in rates
- Dates before 1999 are out of ECB historical range and may return an error
- Future dates are not supported
- Missing required 'from' parameter may result in a 400-style error
- Very obscure currencies not tracked by ECB will not appear in results

## How this service works

Currency conversion (ECB reference rates, today or any date since 1999) — Real-world Data

## Output

Returns a JSON object with the source currency, the request date, the exchange rates map (currency code to rate), and if an amount was specified, a converted map showing the converted values for each target currency.

## 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",
      "POST",
      "PUT",
      "PATCH",
      "DELETE",
      "HEAD"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "to": {
       "type": "string",
       "description": "optional ISO currency or comma list, e.g. EUR,JPY (query)"
      },
      "from": {
       "type": "string",
       "description": "ISO currency, e.g. USD (query)"
      },
      "amount": {
       "type": "string",
       "description": "optional, default 1 (query)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "from",
      "rates"
     ],
     "properties": {
      "date": {
       "type": "string"
      },
      "from": {
       "type": "string"
      },
      "rates": {
       "type": "object"
      },
      "amount": {
       "type": [
        "number",
        "null"
       ]
      },
      "converted": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-fx-currency-converter-749f8054/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)