GET
/api/v2/cards/quantum-topup/estimateEstimate Quantum top-up conversion using CryptoConnect quotes for USD to USDT/USDC and USDT/USDC to USD
Authentication
Send your API key in the x-api-key header on every request.
Parameters
| Field | Type | Required | Description |
|---|---|---|---|
| userId (query) | unknown | No | User ID (mandatory) |
| amount (query) | unknown | No | USD amount to estimate for the forward and reverse quote requests |
Responses
200 — OK
| Field | Type | Required | Description |
|---|---|---|---|
| success | boolean | No | |
| message | string | No | |
| usdAmount | unknown | No | |
| usdToUsdt | object | No | |
| usdToUsdc | object | No | |
| usdtToUsd | object | No | |
| usdcToUsd | object | No | |
| usdt | object | No | |
| usdc | object | No | |
| topupfee | unknown | No | |
| topupfeepercent | unknown | No |
400 — Bad Request
| Field | Type | Required | Description |
|---|---|---|---|
| Message | string | No | |
| Code | string | No | |
| Status | unknown | No | |
| ValidationErrors | object | No | |
| Details | string | No |
401 — Unauthorized
| Field | Type | Required | Description |
|---|---|---|---|
| Message | string | No | |
| Code | string | No | |
| Status | unknown | No | |
| ValidationErrors | object | No | |
| Details | string | No |
403 — Forbidden
| Field | Type | Required | Description |
|---|---|---|---|
| Message | string | No | |
| Code | string | No | |
| Status | unknown | No | |
| ValidationErrors | object | No | |
| Details | string | No |
500 — Internal Server Error
| Field | Type | Required | Description |
|---|---|---|---|
| Message | string | No | |
| Code | string | No | |
| Status | unknown | No | |
| ValidationErrors | object | No | |
| Details | string | No |
Example request
curl -X GET "https://{base_url}/api/v2/cards/quantum-topup/estimate" \
-H "x-api-key: YOUR_API_KEY"This page is generated from the live OpenAPI specification and always matches the current API.