> ## Documentation Index
> Fetch the complete documentation index at: https://v3.docs.derive.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Request a deposit into a vault

> Submits a signed deposit action from the user's source subaccount and enqueues it in the vault's pending-deposit queue for the curator to settle. Inputs are the target vault subaccount, the deposit asset, and the amount as a decimal string. Returns an acknowledgement with the queued request; requires the user-deposit permission.



## OpenAPI

````yaml /openapi.json post /private/request_vault_deposit
openapi: 3.1.0
info:
  title: Derive v3 API
  version: 0.2.0
  description: JSON-RPC 2.0 methods, served over WebSocket and HTTP POST.
servers:
  - url: https://api.derive.xyz/v3
    description: Production (HTTP POST base)
  - url: https://testnet.api.derive.xyz/v3
    description: Testnet (HTTP POST base)
security: []
tags:
  - name: Subaccounts
    description: >-
      List, inspect, and label subaccounts, portfolios, positions, and
      collateral.
  - name: Session Keys
    description: Register, edit, and list delegated signing keys.
  - name: Account
    description: Wallet-level account information and settings.
  - name: Orderbook
    description: Place, replace, cancel, and query orders, trigger orders, and algos.
  - name: RFQ
    description: 'Request-for-quote: send RFQs, quote, and execute block trades.'
  - name: Vault Shareholders
    description: >-
      Deposit into and withdraw from vaults, and track shares, requests, and
      performance.
  - name: Vault Curators
    description: >-
      Create and operate curated vaults: settle deposit and withdrawal requests,
      and manage vault metadata.
  - name: History
    description: >-
      Per-account historical records: orders, trades, transfers, and
      settlements.
  - name: Market Maker Protection
    description: Configure, read, and reset market-maker protection.
  - name: Transfers & Withdrawals
    description: Move collateral between subaccounts, to other wallets, and on-chain.
  - name: System
    description: Rate limits and transaction lookups.
  - name: Market Data
    description: Instruments, currencies, tickers, and market-wide feeds.
  - name: Referrals
    description: Referral codes and program performance.
  - name: Other
    description: Uncategorized.
paths:
  /private/request_vault_deposit:
    post:
      tags:
        - Vault Shareholders
      summary: Request a deposit into a vault
      description: >-
        Submits a signed deposit action from the user's source subaccount and
        enqueues it in the vault's pending-deposit queue for the curator to
        settle. Inputs are the target vault subaccount, the deposit asset, and
        the amount as a decimal string. Returns an acknowledgement with the
        queued request; requires the user-deposit permission.
      operationId: private_request_vault_deposit
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RequestVaultDepositRequest'
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VaultRequestAckResponse'
        default:
          description: JSON-RPC error (see Error Codes)
components:
  schemas:
    RequestVaultDepositRequest:
      description: >-
        Fields common to every signed vault action. They appear alongside each
        endpoint's action-specific parameters in the same request object.
      type: object
      required:
        - amount
        - deposit_spot_asset
        - nonce
        - signature
        - signature_expiry_sec
        - signer
        - subaccount_id
        - vault_subaccount_id
      properties:
        amount:
          description: >-
            Deposit amount in the vault's deposit asset, as a decimal string
            (e.g. `"1"`).
          type: string
          format: decimal
        deposit_spot_asset:
          $ref: '#/components/schemas/Address'
        nonce:
          type: integer
          format: uint64
          minimum: 0
        signature:
          description: 0x-prefixed hex of the 65-byte EOA signature.
          type: string
        signature_expiry_sec:
          type: integer
          format: uint64
          minimum: 0
        signer:
          $ref: '#/components/schemas/Address'
        subaccount_id:
          description: >-
            The subaccount the action is signed on; which subaccount applies
            depends on the specific method — see that method's reference.
          type: integer
          format: uint64
          minimum: 0
        vault_subaccount_id:
          type: integer
          format: uint64
          minimum: 0
    VaultRequestAckResponse:
      description: >-
        Returned by `request_vault_deposit` / `request_vault_withdraw`: the id
        the queued request was assigned (the user's handle for polling /
        cancelling).
      type: object
      required:
        - request_id
      properties:
        request_id:
          $ref: '#/components/schemas/VaultRequestId'
    Address:
      description: 20-byte Ethereum address as a 0x-prefixed lowercase hex string.
      type: string
      maxLength: 42
      minLength: 42
      pattern: ^0x[0-9a-fA-F]{40}$
    VaultRequestId:
      description: |-
        Composite vault request id: `(vault_subaccount_id, wallet, vault_nonce)`

        Useful as a stable dedup key across off-chain and on-chain vault events.
      type: object
      required:
        - vault_nonce
        - vault_subaccount_id
        - wallet
      properties:
        vault_nonce:
          type: string
        vault_subaccount_id:
          type: integer
          format: uint64
          minimum: 0
        wallet:
          $ref: '#/components/schemas/Address'

````

## Related topics

- [Reject a pending vault deposit request](/api-reference/vault-curators/reject-a-pending-vault-deposit-request.md)
- [Page a vault's pending deposit requests](/api-reference/vault-curators/page-a-vaults-pending-deposit-requests.md)
- [Settle a queued vault deposit](/api-reference/vault-curators/settle-a-queued-vault-deposit.md)