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

# Create a quoted Circle Gateway deposit vault

> Returns a source-chain vault address plus the requested amount and quote deadline. Fund the vault with at least `amount` USDC before `deadline` and Eco publishes the deposit intent. Repeating the same request while the quote is still pending and unexpired returns the same vault.



## OpenAPI

````yaml /gateway_fast_deposits_openapi.json post /circle-gateway/v2/depositAddresses
openapi: 3.0.0
info:
  title: Circle Gateway Fast Deposits API
  version: 2.0.0
  description: >-
    REST API for creating quoted Circle Gateway deposit vaults, queueing gasless
    funding via ERC-3009, polling vault and job status.
servers:
  - url: https://api.eco.com
    description: Mainnet
security: []
tags:
  - name: Circle Gateway
  - name: Gasless funding
paths:
  /circle-gateway/v2/depositAddresses:
    post:
      tags:
        - Circle Gateway
      summary: Create a quoted Circle Gateway deposit vault
      description: >-
        Returns a source-chain vault address plus the requested amount and quote
        deadline. Fund the vault with at least `amount` USDC before `deadline`
        and Eco publishes the deposit intent. Repeating the same request while
        the quote is still pending and unexpired returns the same vault.
      operationId: createCircleGatewayDepositVault
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CircleGatewayDepositAddressDTO'
      responses:
        '201':
          description: Quoted vault created successfully
          content:
            application/json:
              schema:
                type: object
                required:
                  - data
                properties:
                  data:
                    $ref: >-
                      #/components/schemas/CircleGatewayDepositAddressResponseDTO
        '400':
          description: Invalid input
components:
  schemas:
    CircleGatewayDepositAddressDTO:
      type: object
      required:
        - sourceChainId
        - amount
        - recipient
        - depositor
      properties:
        sourceChainId:
          type: number
          description: >-
            Source chain ID for the USDC transfer. Mainnet: 8453 (Base), 10
            (Optimism), 42161 (Arbitrum).
          example: 8453
        amount:
          type: string
          description: Required positive integer source-chain USDC amount in base units.
          example: '1000000'
        recipient:
          $ref: '#/components/schemas/EvmAddress'
          description: Gateway depositFor target on the destination chain.
        depositor:
          $ref: '#/components/schemas/EvmAddress'
          description: Address that will fund the vault.
        refundRecipient:
          $ref: '#/components/schemas/EvmAddress'
          description: Address that receives expiry refunds. Defaults to depositor.
    CircleGatewayDepositAddressResponseDTO:
      type: object
      required:
        - vaultAddress
        - amount
        - deadline
      properties:
        vaultAddress:
          $ref: '#/components/schemas/EvmAddress'
          description: Vault address on the source chain.
        amount:
          type: string
          description: Requested source-chain USDC amount in base units.
          example: '1000000'
        deadline:
          type: number
          description: Unix seconds quote deadline.
          example: 1798915200
    EvmAddress:
      type: string
      pattern: ^0x[a-fA-F0-9]{40}$
      description: EIP-55 / lowercase hex 20-byte address
      example: '0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb'

````