# AsterPay x402 USDC-to-EUR Offramp Estimate

> AsterPay x402 USDC-to-EUR Offramp Estimate is a paid API for AI agents from x402.asterpay.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns a real-time estimate for converting USDC to EUR, including exchange rate, output EUR amount, fees, and SEPA delivery time.

## Facts

- Endpoint: GET https://x402.asterpay.io/v2/x402/offramp/estimate
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/asterpay-x402-usdc-to-eur-offramp-estimate-a9e9b66f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_63xvydExXsEdDs7IdRHvY

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 asterpay-x402-usdc-to-eur-offramp-estimate-a9e9b66f
```

Example prompt: How much EUR would I receive if I convert 100 USDC right now, and how long will the SEPA transfer take?

## When to prefer this

Choose this endpoint when you need a real-time USDC-to-EUR conversion quote with SEPA delivery details before executing an offramp transaction. It is specifically suited for EUR fiat settlement via SEPA Instant and is the only x402-native endpoint offering this EUR offramp estimate capability.

## Known failure modes

- Missing or malformed query parameters may return a 400 error
- Service unavailable or rate feed down may return 503
- Exchange rate temporarily unavailable returns an error or simulated flag set to true
- Payment of 0.005 USDC not received results in 402 Payment Required

## How this service works

Get real-time USDC to EUR settlement estimate. Returns exchange rate, EUR amount, fees, and estimated SEPA delivery time. The only x402 endpoint offering EUR fiat settlement.

## Output

Returns a JSON object with inputAmount (USDC), outputAmount (EUR), exchangeRate (USDC/EUR), fee (flat), feePercent, inputCurrency, outputCurrency, estimatedDelivery (e.g. '10 seconds (SEPA Instant)'), and a simulated flag indicating whether the rate is live or simulated.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "amount": 100,
   "toCurrency": "EUR",
   "fromCurrency": "USDC"
  }
 }
}
```

## 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"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "amount"
     ],
     "properties": {
      "amount": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "required": [
   "inputAmount",
   "outputAmount",
   "exchangeRate"
  ],
  "properties": {
   "simulated": {
    "type": "boolean"
   },
   "inputAmount": {
    "type": "number"
   },
   "exchangeRate": {
    "type": "number"
   },
   "outputAmount": {
    "type": "number"
   },
   "estimatedDelivery": {
    "type": "string"
   }
  }
 },
 "example": {
  "fee": 0.5,
  "simulated": false,
  "feePercent": 0.5,
  "inputAmount": 100,
  "exchangeRate": 0.9215,
  "outputAmount": 92.15,
  "inputCurrency": "USDC",
  "outputCurrency": "EUR",
  "estimatedDelivery": "10 seconds (SEPA Instant)"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/asterpay-x402-usdc-to-eur-offramp-estimate-a9e9b66f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.asterpay.io](https://www.zero.xyz/host/x402.asterpay.io/llms.txt)