> ## 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 Internal Transfer

> Create Internal Transfer

**Response field values**

| Field | Possible Values |
| --- | --- |
| `asset` (body) | Coin symbol, e.g. `USDT` |
| `from_user_id`, `to_user_id`, `uuid` (body) | UUID strings |




## OpenAPI

````yaml openapi-v2.json POST /api/v1/wallet/internal_transfer
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/v1/wallet/internal_transfer:
    post:
      tags:
        - Wallet Operations
      summary: Create Internal Transfer
      description: |
        Create Internal Transfer

        **Response field values**

        | Field | Possible Values |
        | --- | --- |
        | `asset` (body) | Coin symbol, e.g. `USDT` |
        | `from_user_id`, `to_user_id`, `uuid` (body) | UUID strings |
      operationId: create-internal-transfer-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:
                to_user_id:
                  type: string
                  description: The to_user_id field
                from_user_id:
                  type: string
                  description: The from_user_id field
                asset:
                  type: string
                  description: The asset field
                amount:
                  type: number
                  description: The amount field
                uuid:
                  type: string
                  description: The uuid field
              required:
                - to_user_id
                - from_user_id
                - asset
                - amount
                - uuid
            example:
              from_user_id: 25e0cdc5-7406-4011-a2e3-cd93b265d966
              to_user_id: bafc53d6-8b0b-4b45-a8c6-4f7aabca5a75
              asset: USDT
              amount: 25
              uuid: 483aed11-3227-4f35-9737-94188aff6be2
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                  data:
                    type: object
                    properties:
                      transaction_id:
                        type: string
              example:
                success: true
                data:
                  transaction_id: 483aed11-3227-4f35-9737-94188aff6be2
        '400':
          description: '`6094`: BAD_PARAMETERS'
          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: 6094
                    text: BAD_PARAMETERS
        '500':
          description: >-
            `1003`: insufficient balance; `5022`: error while executing internal
            transfer; `5999`: 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: 6094
                    text: BAD_PARAMETERS

````

## Related topics

- [Get List of Internal Transfers (All)](/api-reference/wallet-operations/crypto-internal-transfer/get-list-of-internal-transfers-all.md)
- [Get List of Internal Transfers (Single Asset)](/api-reference/wallet-operations/crypto-internal-transfer/get-list-of-internal-transfers-single-asset.md)
- [Understanding the Platform](/getting-started/platform-intro.md)
- [Create External Buy](/api-reference/onramp/to-external-wallet/create-external-buy.md)
- [Initiating Transaction](/offramp/operations/initiate-transaction.md)