> ## Documentation Index > Fetch the complete documentation index at: https://guides.saber.money/llms.txt > Use this file to discover all available pages before exploring further. # Create Pool Sell Transaction > Create a pool sell transaction. **Response field values** | Field | Possible Values | | --- | --- | | `transaction_type` | `POOL_SELL` | | `status` | `CREATED`, `PROCESSING`, `COMPLETED`, `FAILED`, `CANCELLED`, `APPROVAL_REQUIRED`, `SOURCE_INVALID`, `VERIFICATION_PENDING`, `REFUND_INITIATED`, `REFUND_COMPLETED`. Typically `PROCESSING` immediately after creation. | ## OpenAPI ````yaml openapi-v2.json POST /api/v2/wallet/transaction/pool/sell openapi: 3.1.0 info: title: Saber Money API (v2) version: v2 description: >- ## Authentication There is no standalone API-key auth — every request must be **signed**. An API key by itself authenticates nothing. Each call requires four headers together: `X-Api-Key` (your key), `X-Signature` (HMAC-SHA256 of `apiKey + timestamp` — or `apiKey + timestamp + userId` when `X-User-Id` is required — keyed with your API secret), `X-Timestamp` (unix seconds), and `X-Request-Id` (any unique string per request). The signature must be computed by a client script; there is no way to derive it by hand. Use the HMAC Generator flow to compute valid values for manual testing. ## Common Authentication Errors - **Invalid Client ID**: {"error_code":6092,"message":"X-Client-Id invalid","success":false} - **Invalid Secret**: {"error_code":6090,"message":"invalid secret","success":false} - **Timestamp (Older than 10 secs)**: {"errors":{"error_code":6093,"text":"timestamp expired"},"success":false} servers: - url: https://api.saber.money security: [] paths: /api/v2/wallet/transaction/pool/sell: post: tags: - Offramp summary: Create Pool Sell Transaction description: > Create a pool sell transaction. **Response field values** | Field | Possible Values | | --- | --- | | `transaction_type` | `POOL_SELL` | | `status` | `CREATED`, `PROCESSING`, `COMPLETED`, `FAILED`, `CANCELLED`, `APPROVAL_REQUIRED`, `SOURCE_INVALID`, `VERIFICATION_PENDING`, `REFUND_INITIATED`, `REFUND_COMPLETED`. Typically `PROCESSING` immediately after creation. | operationId: create-pool-sell-transaction-v2 parameters: - name: X-Api-Key in: header required: true description: Your API key (configured in credentials) schema: type: string - name: X-Signature in: header required: true description: >- HMAC-SHA256 signature (auto-generated) To test manually: HMAC-SHA256 of `apiKey + timestamp` (or `apiKey + timestamp + userId` when X-User-Id is required), keyed with your API secret. The HMAC Generator flow computes this for you. schema: type: string - name: X-Timestamp in: header required: true description: >- Unix timestamp in seconds (auto-generated) Unix seconds, e.g. `Math.floor(Date.now() / 1000)`. Must match the timestamp used in the X-Signature computation. schema: type: string - name: X-Request-Id in: header required: true description: >- Unique request identifier (auto-generated) Any unique string per request, e.g. a UUID. schema: type: string - name: X-User-Id in: header required: true description: User UUID (set above) schema: type: string requestBody: required: true content: application/json: schema: type: object properties: source_id: type: string description: destination bank acount uuid. crypto_symbol: type: string description: Crypto symbol. Required when `quote_id` is absent. fiat_symbol: type: string description: Fiat symbol. Required when `quote_id` is absent. crypto_amount: type: number description: Crypto amount. Must be positive when `quote_id` is absent. payment_method: type: string description: Payment method. Required when `quote_id` is absent. quote_id: type: string description: >- Quote UUID. When present, symbol and amount fields can be omitted. uuid: type: string description: Optional client reference UUID. source_type: type: string description: Optional source type. remarks: type: string description: Optional note. is_first_party: type: boolean description: Whether the transaction is a first-party transfer. required: - source_id example: source_id: 4fa8f319-ec13-4841-b808-4d4c16cb54c5 fiat_symbol: INR crypto_symbol: USDT crypto_amount: 25 payment_method: bank_transfer uuid: 07825d5d-1879-4cc7-a87f-f5ed45ee391b responses: '200': description: Successful response content: application/json: schema: type: object properties: success: type: boolean data: type: object properties: id: type: string transaction_type: type: string enum: - POOL_SELL status: type: string enum: - CREATED - PROCESSING - COMPLETED - FAILED - CANCELLED - APPROVAL_REQUIRED - SOURCE_INVALID - VERIFICATION_PENDING - REFUND_INITIATED - REFUND_COMPLETED fiat_amount: type: number crypto_amount: type: integer fiat_symbol: type: string crypto_symbol: type: string exchange_rate: type: number failure_code: type: string failure_desc: type: string created_at: type: integer user_id: type: string example: success: true data: id: 07825d5d-1879-4cc7-a87f-f5ed45ee391b transaction_type: POOL_SELL status: PROCESSING fiat_amount: 2160.5 crypto_amount: 25 fiat_symbol: INR crypto_symbol: USDT exchange_rate: 86.42 failure_code: '' failure_desc: '' created_at: 1774343695000 user_id: 65d246fc-6a5b-43d7-89bf-944e95ff2279 '400': description: '`400001`: missing or invalid parameters; `403001`: invalid request' content: application/json: schema: type: object properties: success: type: boolean enum: - false errors: type: array items: type: object properties: code: type: - integer - string text: type: string example: success: false errors: - code: 400001 text: missing or invalid parameters '403': description: >- `403002`: insufficient balance; `404001`: limits validation failed for the transaction; `405001`: invalid user for this client; `406001`: pool transaction not allowed for this user; `406002`: pool transactions not enabled. please contact support. content: application/json: schema: type: object properties: success: type: boolean enum: - false errors: type: array items: type: object properties: code: type: - integer - string text: type: string example: success: false errors: - code: 400001 text: missing or invalid parameters '409': description: '`403004`: reference uuid already exists or is invalid' content: application/json: schema: type: object properties: success: type: boolean enum: - false errors: type: array items: type: object properties: code: type: - integer - string text: type: string example: success: false errors: - code: 400001 text: missing or invalid parameters '500': description: '`499999`: Something went wrong!' content: application/json: schema: type: object properties: success: type: boolean enum: - false errors: type: array items: type: object properties: code: type: - integer - string text: type: string example: success: false errors: - code: 400001 text: missing or invalid parameters ```` ## Related topics - [Get Pool Sell Transaction Details](/api-reference/offramp/from-pool-wallet/get-pool-sell-transaction-details.md) - [Create Sell Transaction](/api-reference/offramp/from-user-wallet/create-sell-transaction.md) - [Create Pool Buy Transaction](/api-reference/onramp/to-pool-wallet/create-pool-buy-transaction.md) - [Get List of Pool Sell Transactions](/api-reference/offramp/from-pool-wallet/get-list-of-pool-sell-transactions.md) - [Initiating Transaction](/offramp/operations/initiate-transaction.md)