AsterPay USDC-to-EUR Offramp Quote Lock

x402

AsterPay USDC-to-EUR Offramp Quote Lock is a paid API for AI agents from x402.asterpay.io, paid per call via x402, $0.0075/call, status unknown (last checked 2026-10-27).

Locks a USDC-to-EUR settlement quote, returning a signed quote_id, fixed EUR rate, net EUR amount, fees, and SEPA delivery details.

Price / call$0.0075

Seller volume →—

Success—

StatusUnknown

How this service works

Lock a USDC to EUR settlement quote. Returns a signed quote_id, locked EUR rate, fees and SEPA delivery. The only x402 endpoint that locks a EUR fiat settlement quote.

Output

A JSON object containing a signed quote_id (e.g. oq_7f3a...c1), the locked EUR exchange rate (eurRate), the net EUR amount after fees (netEurAmount), and an ISO 8601 expiry timestamp (expires_at). Optionally echoes the destination IBAN if provided.

Example use cases

AI agent locks EUR settlement quote

“I need to offramp 2500 USDC to euros for a vendor payment — lock a EUR quote for me and give me the quote_id and the rate so I can confirm before it expires.”

Freelancer settling USDC earnings to bank

“Lock an EUR conversion quote for 750 USDC and deliver it to IBAN FR7630006000011234567890189 — I want to know the exact net EUR amount and fees before I commit.”

Automated treasury rebalancing

“Get a locked USDC to EUR offramp quote for 100000 USDC — I need the signed quote_id, the guaranteed exchange rate, and the expiry time for our treasury system to approve before settling.”

Technical details

Endpoint

POSThttps://x402.asterpay.io/v2/x402/offramp/quote?utm_source=zero.xyz

When to prefer

Use this endpoint when you need a binding, signed EUR settlement quote with a locked rate before executing a USDC offramp — especially for SEPA bank transfers. Prefer this over an estimate endpoint when you need a committed quote_id to proceed with actual settlement, not just an indicative price.

Side effects

Amount out of range (must be 0 < amount <= 1,000,000,000) — validation error returned
Invalid or malformed IBAN format — rejected with error
Quote expires quickly (short TTL) — agent must act before expires_at
Payment not received for x402 micropayment — quote not issued
EUR market unavailable or rate feed stale — service may return error or unavailable response

Input

Schema · Request body

Field	Type	Description
amount	number	USDC amount to settle (0 < amount <= 1,000,000,000)
destination_iban	string	Optional destination IBAN

Output

Schema · Response

{
  "type": "json",
  "schema": {
    "type": "object",
    "required": [
      "quote_id",
      "netEurAmount",
      "eurRate"
    ],
    "properties": {
      "eurRate": {
        "type": "number"
      },
      "quote_id": {
        "type": "string"
      },
      "expires_at": {
        "type": "string"
      },
      "netEurAmount": {
        "type": "number"
      }
    }
  },
  "example": {
    "eurRate": 0.9202,
    "quote_id": "oq_7f3a...c1",
    "expires_at": "2026-07-04T05:10:00.000Z",
    "netEurAmount": 91.83,
    "destination_iban": null
  }
}

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