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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, $0.005/call, status unknown (last checked 2026-09-14).
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$0.005
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/quoteWhen 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 |
Tags
x402
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