BINANCE SAPI · C2C

Place An Order API

Initiate and execute a new peer-to-peer (C2C) trade order against an active advertisement, locking escrow assets and opening counterparty trade settlement.

ENDPOINT

POST /sapi/v1/c2c/orderMatch/placeOrder

Authentication USER_DATA / SIGNED

API Group C2C / Order Match

Method POST

Response JSON

Overview

This endpoint places a new trade order against a specified peer-to-peer advertisement (advOrderNumber). Orders can be formulated by specifying either the exact target digital asset amount (BY_AMOUNT) or the total fiat currency volume (BY_MONEY).

Upon placement, the corresponding cryptocurrency volume is locked in Binance escrow, trade countdown timers begin, and an active order match session is established between buyer and seller.

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Ready-to-Use Solution

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Request Parameters

Parameters accepted in Body and HTTP Headers.

Parameter	In	Type	Required	Description
`clientType`	Header	STRING	Required	Client Device Type initiating the request (e.g., `WEB`, `APP`, `WEB_MOBILE`).
`advOrderNumber`	Body	STRING	Required	Unique advertisement number identifier to place the order against.
`asset`	Body	STRING	Required	Cryptocurrency asset symbol (e.g., `USDT`, `BTC`).
`fiatUnit`	Body	STRING	Required	Fiat currency unit symbol (e.g., `USD`, `EUR`, `KES`).
`tradeType`	Body	STRING	Required	Trade direction (`BUY` or `SELL`).
`buyType`	Body	STRING	Required	Order calculation mode: `BY_AMOUNT` (crypto quantity) or `BY_MONEY` (fiat value).
`totalAmount`	Body	DECIMAL / DOUBLE	Required	Total purchase value expressed in crypto units or fiat units (matching `buyType`).
`matchPrice`	Body	DECIMAL / DOUBLE	Optional	Expected execution unit price to protect against slippage during order placement.
`payId`	Body	LONG	Optional	Seller's preferred payment method identifier.
`payType`	Body	STRING	Optional	Payment method type channel name (e.g., `BANK`, `SPECIFIC_PAYMENT_NAME`).
`origin`	Body	STRING	Optional	Order source tracking origin tag.
`x-gray-env`	Header	STRING	Optional	Environment flag identifier used for internal gray/stage testing.
`x-trace-id`	Header	STRING	Optional	Custom client trace ID for request lifecycle tracking and debugging.
`x-user-id`	Header	STRING	Optional	Target user identifier for context validation.

Price Match Protection

Supplying matchPrice ensures that the order will only execute if the ad's current unit price matches your target valuation, preventing unexpected pricing fluctuations caused by floating-price repricers.

Request Example

Example POST request using cURL to buy 100 USDT via fiat.

cURL BASH

curl -X POST \
'https://api.binance.com/sapi/v1/c2c/orderMatch/placeOrder' \
-H 'clientType: WEB' \
-H 'Content-Type: application/json' \
-d '{
  "advOrderNumber": "1122334455667788",
  "asset": "USDT",
  "fiatUnit": "USD",
  "tradeType": "BUY",
  "buyType": "BY_AMOUNT",
  "totalAmount": 100.00,
  "matchPrice": 1.015,
  "payType": "BANK"
}'

Response

Example response returned on successful order placement.

RESPONSE 200 OK

{
    "code": "000000",
    "message": "success",
    "data": {
        "orderNumber": "202608161234567890",
        "advNo": "1122334455667788",
        "tradeType": "BUY",
        "asset": "USDT",
        "fiat": "USD",
        "amount": "100.00",
        "totalPrice": "101.50",
        "unitPrice": "1.015",
        "orderStatus": "TRADING",
        "createTime": 1786953600000
    },
    "success": true
}

Response Fields

Field	Type	Description
`code`	STRING	Standard Binance status code (`"000000"` indicates success).
`message`	STRING	Status description or response feedback message.
`data.orderNumber`	STRING	Newly created C2C trade order identification number.
`data.totalPrice`	STRING	Total fiat settlement amount to transfer or receive.
`data.amount`	STRING	Total crypto asset volume locked in escrow.
`data.orderStatus`	STRING	Initial order state (typically `TRADING`).
`success`	BOOLEAN	Indicates overall request execution result.

How It Works

Workflow for placing a C2C trade order.

01 Select Ad & Mode Choose advOrderNumber and specify BY_AMOUNT or BY_MONEY.

02 Send POST Request Call /sapi/v1/c2c/orderMatch/placeOrder endpoint.

03 Lock Escrow Exchange locks crypto assets into secure escrow.

04 Start Settlement Order number is returned and payment countdown begins.

Common Use Cases

Arbitrage Auto-Buy Bots

Execute instantaneous orders against target competitor ads when cross-market spreads exceed threshold targets.

Custom Checkout Portals

Allow platform users to buy cryptocurrency seamlessly by embedding direct P2P order matching flows.

Automated Liquidity Replenishment

Place programmatic buy orders to rebalance merchant working capital when inventory drops below limits.

Arbitrage Auto-Buy Bots

Execute instantaneous orders against target competitor ads when spreads exceed threshold targets.
Explore our P2P Bot →

← Previous Endpoint Query Counter Party Order Statistic API Next Endpoint → Retrieve User Order History With Pagination API

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