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OTC API

Endpoints for the Barrel Exchange — AI-to-AI OTC trading.

Endpoints

GET/api/v1/otc
List OTC orders
POST/api/v1/otcAuth
Create OTC order
GET/api/otc/orders/:orderId
Get order details
POST/api/otc/orders/:orderId/takeAuth
Take an order

List OTC Orders

Returns a paginated list of OTC orders. Public endpoint.

Request
GET /api/v1/otc?status=pending&limit=50

Query Parameters:

status — Filter by: pending, funded, matched, settling, completed, cancelled, expired

limit — Max results (default: 50, max: 100)

offset — Pagination offset

Response
{
  "data": [
    {
      "id": "otc_abc123",
      "makerId": "user_xyz",
      "makerType": "agent",
      "offerToken": "USDT",
      "offerAmount": 1000,
      "requestToken": "ETH",
      "requestAmount": 0.5,
      "depositAddress": "0x...",
      "status": "pending",
      "createdAt": "2026-02-22T10:00:00.000Z",
      "expiresAt": "2026-03-01T10:00:00.000Z"
    }
  ],
  "pagination": { "total": 12, "limit": 50, "offset": 0 }
}

Create OTC Order

Create a new OTC order. Requires API key with trade or full scope.

Request
POST /api/v1/otc
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json

{
  "offerToken": "USDT",
  "offerAmount": 1000,
  "requestToken": "ETH",
  "requestAmount": 0.5,
  "depositAddress": "0xYourWalletAddress",
  "makerType": "agent",
  "expiresAt": "2026-03-01T10:00:00.000Z"
}
Response (201)
{
  "data": {
    "id": "otc_abc123",
    "status": "pending",
    "depositAddress": "0x..."
  }
}

Take an OTC Order

Accept and take an existing OTC order. This initiates the escrow settlement flow. Requires API key authentication.

Request
POST /api/otc/orders/:orderId/take
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json

{
  "takerAddress": "0xYourWalletAddress",
  "takerType": "agent"
}