---
title: "Fiat Settlement Estimate — $0.0075 after free daily quota"
method: GET
path: "/v1/settlement/estimate"
tags: ["settlement"]
---

# Fiat Settlement Estimate — $0.0075 after free daily quota

`GET /v1/settlement/estimate`

## Request

- Base URL: `https://x402.asterpay.io`
- URL: `https://x402.asterpay.io/v1/settlement/estimate`
- Auth: one of:
  - API key in header `PAYMENT-SIGNATURE`
  - HTTP payment

Calculate EUR settlement amount with fees, FX rate, and estimated time. Free for the first 25 unpaid calls per client IP per UTC day, then 402 at $0.0075 via x402 or MPP.

## Query parameters

- `amount` number, required

## Response `200`

Settlement estimate

- object
  - `success` boolean, required
  - `data` object, required
    - `usdcAmount` string: Input amount in USDC base units (6 decimals)
    - `usdcAmountFormatted` string, required
    - `eurRate` number, required: USDC→EUR rate applied
    - `asterpayFeeBps` integer: AsterPay fee in basis points
    - `asterpayFixedFeeEur` string
    - `asterpayFeeUsdc` string
    - `asterpayFeeEur` string
    - `netEurAmount` string, required: EUR the beneficiary receives
    - `estimatedSepaTime` string
    - `rateLockValidUntil` string, date-time
    - `simulated` boolean: true when no live FX/partner quote backed the figures
  - `timestamp` string, date-time, required

## Other responses

- `402`: Payment Required — pay via x402 or MPP (USDC on Base, Ethereum, Polygon, Arbitrum, Optimism or SKALE), then retry. See the WWW-Authenticate and Payment-Required response headers, or the `accepts` array below. The example is the exact body the runtime returns (minus per-request extras such as example_response and extensions.bazaar).

---

[API](https://skmtc.dev/asterpay/apis/asterpay-data-api.md) · [All operations](https://skmtc.dev/asterpay/apis/asterpay-data-api/llms.txt) · [OpenAPI document](https://skmtc.dev/asterpay/apis/asterpay-data-api/revisions/97b4ab464b3b?raw)