OTC Trading

This guide covers the OTC (Over-the-Counter) trading workflow for executing trades with external dealers.

Overview

OTC trading allows clients to execute large trades with external dealers, with the platform acting as an intermediary. This avoids impacting the public order book on the Marketplace.

Prerequisites

Authenticated session (JWT or API key)
CanTrade permission
Sub-account with venue = VENUE_OTC or OTC-enabled
Pair must have otcTradable = true

Step 1: Check OTC Listing

Before trading, verify that OTC trading is available for your desired pair.

Endpoint: GET /api/rest/v1/otc/listings/{pairId}

Request

curl -X GET "https://api.t-dx.com/api/rest/v1/otc/listings/79b1db24-7dc8-45d1-ab77-44318f872a8e" \
  -H "Authorization: Bearer <access-token>"

Response (200 OK)

{
  "result": {
    "id": "listing-uuid",
    "pairId": "79b1db24-7dc8-45d1-ab77-44318f872a8e",
    "minIncrement": "0.01",
    "minRfqQuantity": "1.0",
    "minOrderQuantity": "0.1",
    "live": true,
    "monitoringThreshold": 10000,
    "createdAt": "2023-01-01T00:00:00Z"
  }
}

Listing Fields

Field	Description
`minIncrement`	Minimum price increment
`minRfqQuantity`	Minimum quantity for RFQ
`minOrderQuantity`	Minimum quantity for orders
`live`	Whether OTC trading is active

Step 2: Create OTC Order

Submit an OTC order for execution.

Endpoint: POST /api/rest/v1/otc/orders

Request

curl -X POST "https://api.t-dx.com/api/rest/v1/otc/orders" \
  -H "Authorization: Bearer <access-token>" \
  -H "Content-Type: application/json" \
  -d '{
    "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804",
    "pairId": "79b1db24-7dc8-45d1-ab77-44318f872a8e",
    "side": "SIDE_BUY",
    "type": "TYPE_LIMIT",
    "quantity": "10.00000000",
    "price": "45000.00",
    "timeInForce": "TIME_IN_FORCE_GOOD_TILL_CANCELED"
  }'

Request Fields

Field	Type	Required	Description
`subAccountId`	UUID	Yes	Sub-account for the order
`pairId`	UUID	Yes	Trading pair ID
`side`	enum	Yes	`SIDE_BUY` or `SIDE_SELL`
`type`	enum	Yes	Order type (see below)
`quantity`	decimal	Yes	Order quantity
`price`	decimal	No	Limit price (required for limit orders)
`timeInForce`	enum	No	Time in force policy
`comment`	string	No	Optional order comment
`clientOrderId`	string	No	Client-provided identifier
`dry`	boolean	No	If true, validates without creating
`startAt`	timestamp	No	Scheduled start time
`endAt`	timestamp	No	Expiration time (required for TWAP)
`parameters`	object	No	Order-type specific parameters

Order Types

Type	Description
`TYPE_LIMIT`	Limit order at specified price
`TYPE_MARKET`	Market order
`TYPE_LIMIT_TWAP`	Time-weighted average price

Stop Orders

Stop and stop-limit orders are created by adding stopParams to the parameters field. Use TYPE_MARKET with stopParams for a stop order, or TYPE_LIMIT with stopParams for a stop-limit order. See Stop Order Example below.

Time in Force

Value	Description
`TIME_IN_FORCE_GOOD_TILL_CANCELED`	Remains active until filled or cancelled
`TIME_IN_FORCE_IMMEDIATE_OR_CANCEL`	Fill immediately or cancel
`TIME_IN_FORCE_FILL_OR_KILL`	Fill completely or cancel

Response (200 OK)

{
  "result": {
    "id": "otc-order-uuid",
    "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804",
    "pairId": "79b1db24-7dc8-45d1-ab77-44318f872a8e",
    "side": "SIDE_BUY",
    "type": "TYPE_LIMIT",
    "status": "STATUS_OPEN",
    "quantity": "10.00000000",
    "cumulativeQuantity": "0.00000000",
    "price": "45000.00",
    "timeInForce": "TIME_IN_FORCE_GOOD_TILL_CANCELED",
    "createdAt": "2024-01-15T10:30:00Z",
    "updatedAt": "2024-01-15T10:30:00Z"
  }
}

Step 3: List OTC Orders

View your OTC orders.

Endpoint: GET /api/rest/v1/otc/orders/by-sub-account/{subAccountId}

Request

curl -X GET "https://api.t-dx.com/api/rest/v1/otc/orders/by-sub-account/7376524e-6b6b-4137-9719-7e07a7709804" \
  -H "Authorization: Bearer <access-token>"

Query Parameters

This endpoint supports standard pagination, sorting, and filtering.

Supported filters: status, side, pair_id

Response (200 OK)

{
  "result": [
    {
      "id": "otc-order-uuid",
      "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804",
      "pairId": "79b1db24-7dc8-45d1-ab77-44318f872a8e",
      "side": "SIDE_BUY",
      "type": "TYPE_LIMIT",
      "status": "STATUS_FILLED",
      "quantity": "10.00000000",
      "cumulativeQuantity": "10.00000000",
      "price": "45000.00",
      "clientAmount": "449500.00",
      "timeInForce": "TIME_IN_FORCE_GOOD_TILL_CANCELED",
      "createdAt": "2024-01-15T10:30:00Z",
      "updatedAt": "2024-01-15T10:35:00Z"
    }
  ],
  "pagination": {
    "cursors": {
      "self": "eyJTb3J0cyI6W10sIkZpbHRlcnMiOltdLCJJc0ZpcnN0Ijp0cnVlfQ==",
      "first": "eyJTb3J0cyI6W10sIkZpbHRlcnMiOltdLCJJc0ZpcnN0Ijp0cnVlfQ==",
      "last": "",
      "next": "",
      "previous": ""
    }
  }
}

OTC Order Status Values

Status	Description
`STATUS_TENTATIVE`	Order pending confirmation
`STATUS_PENDING`	Order pending activation
`STATUS_OPEN`	Order active in the market
`STATUS_FILLED`	Fully executed
`STATUS_CANCELED`	Cancelled
`STATUS_REJECTED`	Rejected by system
`STATUS_PENDING_CANCEL`	Cancel request pending

Step 4: Get Specific OTC Order

Endpoint: GET /api/rest/v1/otc/orders/by-sub-account/{subAccountId}/{orderId}

Request

curl -X GET "https://api.t-dx.com/api/rest/v1/otc/orders/by-sub-account/7376524e-6b6b-4137-9719-7e07a7709804/otc-order-uuid" \
  -H "Authorization: Bearer <access-token>"

Response (200 OK)

{
  "result": {
    "id": "otc-order-uuid",
    "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804",
    "pairId": "79b1db24-7dc8-45d1-ab77-44318f872a8e",
    "side": "SIDE_BUY",
    "type": "TYPE_LIMIT",
    "status": "STATUS_FILLED",
    "quantity": "10.00000000",
    "cumulativeQuantity": "10.00000000",
    "price": "45000.00",
    "clientAmount": "449500.00",
    "createdAt": "2024-01-15T10:30:00Z",
    "updatedAt": "2024-01-15T10:35:00Z"
  }
}

Step 5: Cancel OTC Order

Cancel an open OTC order.

Endpoint: DELETE /api/rest/v1/otc/orders/by-sub-account/{subAccountId}/{orderId}

Request

curl -X DELETE "https://api.t-dx.com/api/rest/v1/otc/orders/by-sub-account/7376524e-6b6b-4137-9719-7e07a7709804/otc-order-uuid" \
  -H "Authorization: Bearer <access-token>"

Response (200 OK)

Empty response on success.

Step 6: View OTC Trades

View executed OTC trades.

Endpoint: GET /api/rest/v1/otc/trades/by-sub-account/{subAccountId}

Request

curl -X GET "https://api.t-dx.com/api/rest/v1/otc/trades/by-sub-account/7376524e-6b6b-4137-9719-7e07a7709804" \
  -H "Authorization: Bearer <access-token>"

Query Parameters

This endpoint supports standard pagination and filtering.

Supported filters: order_id, side, pair_id

Sort restriction: OTC trades can only be sorted by executed_at:

sort=executed_at-desc (default)
sort=executed_at-asc

Note: Unlike other endpoints, sorting by created_at is not supported and will return a 400 error.

Response (200 OK)

{
  "result": [
    {
      "id": "otc-trade-uuid",
      "orderId": "otc-order-uuid",
      "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804",
      "pairId": "79b1db24-7dc8-45d1-ab77-44318f872a8e",
      "side": "SIDE_BUY",
      "quantity": "10.00000000",
      "amount": "450000.00",
      "clientAmount": "449500.00",
      "executedAt": "2024-01-15T10:35:00Z"
    }
  ],
  "pagination": {
    "cursors": {
      "self": "eyJTb3J0cyI6W10sIkZpbHRlcnMiOltdLCJJc0ZpcnN0Ijp0cnVlfQ==",
      "first": "eyJTb3J0cyI6W10sIkZpbHRlcnMiOltdLCJJc0ZpcnN0Ijp0cnVlfQ==",
      "last": "",
      "next": "",
      "previous": ""
    }
  }
}

Step 7: Get Specific OTC Trade

Endpoint: GET /api/rest/v1/otc/trades/by-sub-account/{subAccountId}/{tradeId}

Request

curl -X GET "https://api.t-dx.com/api/rest/v1/otc/trades/by-sub-account/7376524e-6b6b-4137-9719-7e07a7709804/otc-trade-uuid" \
  -H "Authorization: Bearer <access-token>"

Step 8: View Quotes (Optional)

View quotes associated with your orders.

Endpoint: GET /api/rest/v1/quotes/by-sub-account/{subAccountId}

Request

curl -X GET "https://api.t-dx.com/api/rest/v1/quotes/by-sub-account/7376524e-6b6b-4137-9719-7e07a7709804" \
  -H "Authorization: Bearer <access-token>"

Query Parameters

This endpoint supports standard pagination, sorting, and filtering.

Supported filters: status, side, pair_id

Response (200 OK)

{
  "result": [
    {
      "id": "quote-uuid",
      "rfqId": "rfq-uuid",
      "pairId": "79b1db24-7dc8-45d1-ab77-44318f872a8e",
      "status": "QUOTE_STATUS_ACCEPTED",
      "quantity": "10.00000000",
      "amount": "450000.00",
      "fees": "500.00",
      "clientAmount": "449500.00",
      "quoteSide": "ASK",
      "operationSide": "SIDE_BUY",
      "acceptedAt": "2024-01-15T10:31:00Z"
    }
  ],
  "pagination": {
    "cursors": {
      "self": "eyJTb3J0cyI6W10sIkZpbHRlcnMiOltdLCJJc0ZpcnN0Ijp0cnVlfQ==",
      "first": "eyJTb3J0cyI6W10sIkZpbHRlcnMiOltdLCJJc0ZpcnN0Ijp0cnVlfQ==",
      "last": "",
      "next": "",
      "previous": ""
    }
  }
}

Quote Status Values

Status	Description
`QUOTE_STATUS_ACCEPTED`	Quote accepted
`QUOTE_STATUS_CONFIRMED_BY_COUNTERPARTY`	Confirmed by counterparty
`QUOTE_STATUS_REJECTED_BY_COUNTERPARTY`	Rejected by counterparty
`QUOTE_STATUS_SETTLED`	Trade settled
`QUOTE_STATUS_MISSING`	Quote not available

Get Specific Quote

Endpoint: GET /api/rest/v1/quotes/by-sub-account/{subAccountId}/rfq/{rfqId}

curl -X GET "https://api.t-dx.com/api/rest/v1/quotes/by-sub-account/7376524e-6b6b-4137-9719-7e07a7709804/rfq/rfq-uuid" \
  -H "Authorization: Bearer <access-token>"

TWAP Order Example

Create a TWAP (Time-Weighted Average Price) order:

curl -X POST "https://api.t-dx.com/api/rest/v1/otc/orders" \
  -H "Authorization: Bearer <access-token>" \
  -H "Content-Type: application/json" \
  -d '{
    "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804",
    "pairId": "79b1db24-7dc8-45d1-ab77-44318f872a8e",
    "side": "SIDE_BUY",
    "type": "TYPE_LIMIT_TWAP",
    "quantity": "100.00000000",
    "price": "45000.00",
    "startAt": "2024-01-15T10:00:00Z",
    "endAt": "2024-01-15T18:00:00Z",
    "parameters": {
      "twapParams": {
        "clipSize": "0.5"
      }
    }
  }'

Stop Order Example

Create a stop-limit order that triggers when the price reaches 44000.00:

curl -X POST "https://api.t-dx.com/api/rest/v1/otc/orders" \
  -H "Authorization: Bearer <access-token>" \
  -H "Content-Type: application/json" \
  -d '{
    "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804",
    "pairId": "79b1db24-7dc8-45d1-ab77-44318f872a8e",
    "side": "SIDE_BUY",
    "type": "TYPE_LIMIT",
    "quantity": "10.00000000",
    "price": "45000.00",
    "timeInForce": "TIME_IN_FORCE_GOOD_TILL_CANCELED",
    "parameters": {
      "stopParams": {
        "triggerPrice": "44000.00"
      }
    }
  }'

For a stop (market) order, use TYPE_MARKET instead of TYPE_LIMIT and omit the price field:

curl -X POST "https://api.t-dx.com/api/rest/v1/otc/orders" \
  -H "Authorization: Bearer <access-token>" \
  -H "Content-Type: application/json" \
  -d '{
    "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804",
    "pairId": "79b1db24-7dc8-45d1-ab77-44318f872a8e",
    "side": "SIDE_SELL",
    "type": "TYPE_MARKET",
    "quantity": "10.00000000",
    "parameters": {
      "stopParams": {
        "triggerPrice": "40000.00"
      }
    }
  }'

Stop Parameters

Field	Type	Required	Description
`triggerPrice`	decimal	Yes	The price that, once reached, will trigger the order

Error Scenarios

Status	Code	Description
400	`INVALID_ARGUMENT`	Invalid quantity, price, or parameters
403	`NOT_ENOUGH_FUNDS`	Insufficient balance for trade
403	`PERMISSION_DENIED`	No trade permission
404	`NOT_FOUND`	Order or trade not found
422	`FAILED_PRECONDITION`	OTC trading not enabled for pair

Trading Data - Market data and pricing
Wallet Information - Balance verification
Domains: Trading - Full trading API reference

OTC Trading

Overview

Prerequisites

Step 1: Check OTC Listing

Request

Response (200 OK)

Listing Fields

Step 2: Create OTC Order

Request

Request Fields

Order Types

Time in Force

Response (200 OK)

Step 3: List OTC Orders

Request

Query Parameters

Response (200 OK)

OTC Order Status Values

Step 4: Get Specific OTC Order

Request

Response (200 OK)

Step 5: Cancel OTC Order

Request

Response (200 OK)

Step 6: View OTC Trades

Request

Query Parameters

Response (200 OK)

Step 7: Get Specific OTC Trade

Request

Step 8: View Quotes (Optional)

Request

Query Parameters

Response (200 OK)

Quote Status Values

Get Specific Quote

TWAP Order Example

Stop Order Example

Stop Parameters

Error Scenarios

Related