> ## Documentation Index
> Fetch the complete documentation index at: https://turnkey-0e7c1f5b-moeo-sync.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Init fiat on ramp

> Initiate a fiat on ramp flow.

export const EndpointPath = ({type, path}) => {
  return <div class="flex w-full flex-col bg-background-light dark:bg-background-dark border-standard rounded-2xl p-1.5">
      <div class="flex items-center space-x-1.5">
        <div class="relative flex-1 flex gap-2 min-w-0 rounded-xl items-center cursor-pointer p-1.5 border-standard">
          <div class="rounded-lg font-bold px-1.5 py-0.5 text-sm leading-5 bg-blue-400/20 dark:bg-blue-400/20 text-blue-700 dark:text-blue-400">
            POST
          </div>
          <div class="flex items-center space-x-2 overflow-x-auto flex-1 no-scrollbar">
            <div class="group flex items-center flex-1 gap-0.5 font-mono">
              <div class="absolute right-0 p-2 bg-background-light dark:bg-background-dark rounded-lg hidden group-hover:block">
                <svg class="w-4 h-4 bg-gray-400 dark:bg-white/30"></svg>
              </div>
              <div class="text-sm text-gray-400">/</div>
              <div class="text-sm font-medium text-gray-800 dark:text-white min-w-max">
                public
              </div>
              <div class="text-sm text-gray-400">/</div>
              <div class="text-sm font-medium text-gray-800 dark:text-white min-w-max">
                v1
              </div>
              <div class="text-sm text-gray-400">/</div>
              <div class="text-sm font-medium text-gray-800 dark:text-white min-w-max">
                {type}
              </div>
              <div class="text-sm text-gray-400">/</div>
              <div class="text-sm font-medium text-gray-800 dark:text-white min-w-max">
                {path}
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>;
};

export const NestedParam = ({parentKey, childKey, type, required, description, children}) => {
  const fullKey = `${parentKey}.${childKey}`;
  const anchorId = `body-${fullKey.replace(/\./g, '-')}`;
  return <div className="py-6 border-gray-100 dark:border-gray-800 border-b last:border-b-0">
  <div className="flex font-mono text-sm group/param-head param-head break-all relative" id={anchorId}>
    <div className="flex-1 flex content-start py-0.5 mr-5">
      <div className="flex items-center flex-wrap gap-2">
        <div className="absolute -top-1.5">
          <a href={`#${anchorId}`} className="-ml-[2.1rem] flex items-center opacity-0 border-0 group-hover/param-head:opacity-100 py-2 [.expandable-content_&]:-ml-[2.1rem]" aria-label="Navigate to header">
            <div className="w-6 h-6 text-gray-400 rounded-md flex items-center justify-center zinc-box bg-white ring-1 ring-gray-400/30 dark:ring-gray-700/25 hover:ring-gray-400/60 dark:hover:ring-white/20">
              <svg xmlns="http://www.w3.org/2000/svg" fill="gray" height="12px" viewBox="0 0 576 512">
                <path d="M0 256C0 167.6 71.6 96 160 96h72c13.3 0 24 10.7 24 24s-10.7 24-24 24H160C98.1 144 48 194.1 48 256s50.1 112 112 112h72c13.3 0 24 10.7 24 24s-10.7 24-24 24H160C71.6 416 0 344.4 0 256zm576 0c0 88.4-71.6 160-160 160H344c-13.3 0-24-10.7-24-24s10.7-24 24-24h72c61.9 0 112-50.1 112-112s-50.1-112-112-112H344c-13.3 0-24-10.7-24-24s10.7-24 24-24h72c88.4 0 160 71.6 160 160zM184 232H392c13.3 0 24 10.7 24 24s-10.7 24-24 24H184c-13.3 0-24-10.7-24-24s10.7-24 24-24z"></path>
              </svg>
            </div>
          </a>
        </div>
        <div className="font-semibold text-primary dark:text-primary-light cursor-pointer overflow-wrap-anywhere">
          <span className="text-gray-500 dark:text-gray-400">{parentKey}.</span>
          {childKey}
        </div>
        <div className="inline items-center gap-2 text-xs font-medium [&_div]:inline [&_div]:mr-2 [&_div]:leading-5">
          <div className="flex items-center px-2 py-0.5 rounded-md bg-gray-100/50 dark:bg-white/5 text-gray-600 dark:text-gray-200 font-medium break-all">
            <span>{type}</span>
          </div>
          {required && <span className="px-2 py-0.5 rounded-md bg-red-100/50 dark:bg-red-400/10 text-red-600 dark:text-red-300 font-medium whitespace-nowrap">
              required
            </span>}
        </div>
      </div>
    </div>
  </div>
  {children && <div className="mt-4">
      <div className="prose prose-sm prose-gray dark:prose-invert">
        {children}
      </div>
    </div>}
</div>;
};

export const H3Bordered = ({text}) => <h3 id={text.toLowerCase()} className="border-b pb-2.5 border-gray-100 dark:border-gray-800">
    {text}
  </h3>;

export const Authorizations = () => {
  return <div>
      <H3Bordered text="Authorizations" />

      <Tabs>
        <Tab title="API Key">
          <div className="flex text-sm group/param-head param-head break-all relative" id="authorization-x-stamp">
            <ParamField header="X-Stamp" type="string" required={true}>
              Cryptographically signed (stamped) request to be passed in as a header. For more info, see <a href="https://docs.turnkey.com/developer-reference/api-overview/stamps">here</a>.
            </ParamField>
          </div>
        </Tab>

        <Tab title="WebAuthn (Passkey)">
         <div className="flex text-sm group/param-head param-head break-all relative" id="authorization-x-stamp-webauthn">
            <ParamField body="X-Stamp-WebAuthn" type="string" required={true}>
              Cryptographically signed (stamped) request to be passed in as a header. For more info, see <a href="https://docs.turnkey.com/developer-reference/api-overview/stamps">here</a>.
            </ParamField>
          </div>
        </Tab>
      </Tabs>
    </div>;
};

<EndpointPath type="submit" path="init_fiat_on_ramp" />

<Authorizations />

<H3Bordered text="Body" />

<ParamField body="type" type="enum<string>" required={true}>
  Enum options: `ACTIVITY_TYPE_INIT_FIAT_ON_RAMP`
</ParamField>

<ParamField body="timestampMs" type="string" required={true}>
  Timestamp (in milliseconds) of the request, used to verify liveness of user requests.
</ParamField>

<ParamField body="organizationId" type="string" required={true}>
  Unique identifier for a given Organization.
</ParamField>

<ParamField body="parameters" type="object" required={true} path="parameters">
  <p>The parameters object containing the specific intent data for this activity.</p>

  <Expandable title="details">
    <NestedParam parentKey="parameters" childKey="onrampProvider" type="enum<string>" required={true} default="">
      Enum options: `FIAT_ON_RAMP_PROVIDER_COINBASE`, `FIAT_ON_RAMP_PROVIDER_MOONPAY`
    </NestedParam>

    <NestedParam parentKey="parameters" childKey="walletAddress" type="string" required={true} default="">
      Destination wallet address for the buy transaction.
    </NestedParam>

    <NestedParam parentKey="parameters" childKey="network" type="enum<string>" required={true} default="">
      Enum options: `FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_BITCOIN`, `FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_ETHEREUM`, `FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_SOLANA`, `FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_BASE`
    </NestedParam>

    <NestedParam parentKey="parameters" childKey="cryptoCurrencyCode" type="enum<string>" required={true} default="">
      Enum options: `FIAT_ON_RAMP_CRYPTO_CURRENCY_BTC`, `FIAT_ON_RAMP_CRYPTO_CURRENCY_ETH`, `FIAT_ON_RAMP_CRYPTO_CURRENCY_SOL`, `FIAT_ON_RAMP_CRYPTO_CURRENCY_USDC`
    </NestedParam>

    <NestedParam parentKey="parameters" childKey="fiatCurrencyCode" type="enum<string>" required={false} default="">
      Enum options: `FIAT_ON_RAMP_CURRENCY_AUD`, `FIAT_ON_RAMP_CURRENCY_BGN`, `FIAT_ON_RAMP_CURRENCY_BRL`, `FIAT_ON_RAMP_CURRENCY_CAD`, `FIAT_ON_RAMP_CURRENCY_CHF`, `FIAT_ON_RAMP_CURRENCY_COP`, `FIAT_ON_RAMP_CURRENCY_CZK`, `FIAT_ON_RAMP_CURRENCY_DKK`, `FIAT_ON_RAMP_CURRENCY_DOP`, `FIAT_ON_RAMP_CURRENCY_EGP`, `FIAT_ON_RAMP_CURRENCY_EUR`, `FIAT_ON_RAMP_CURRENCY_GBP`, `FIAT_ON_RAMP_CURRENCY_HKD`, `FIAT_ON_RAMP_CURRENCY_IDR`, `FIAT_ON_RAMP_CURRENCY_ILS`, `FIAT_ON_RAMP_CURRENCY_JOD`, `FIAT_ON_RAMP_CURRENCY_KES`, `FIAT_ON_RAMP_CURRENCY_KWD`, `FIAT_ON_RAMP_CURRENCY_LKR`, `FIAT_ON_RAMP_CURRENCY_MXN`, `FIAT_ON_RAMP_CURRENCY_NGN`, `FIAT_ON_RAMP_CURRENCY_NOK`, `FIAT_ON_RAMP_CURRENCY_NZD`, `FIAT_ON_RAMP_CURRENCY_OMR`, `FIAT_ON_RAMP_CURRENCY_PEN`, `FIAT_ON_RAMP_CURRENCY_PLN`, `FIAT_ON_RAMP_CURRENCY_RON`, `FIAT_ON_RAMP_CURRENCY_SEK`, `FIAT_ON_RAMP_CURRENCY_THB`, `FIAT_ON_RAMP_CURRENCY_TRY`, `FIAT_ON_RAMP_CURRENCY_TWD`, `FIAT_ON_RAMP_CURRENCY_USD`, `FIAT_ON_RAMP_CURRENCY_VND`, `FIAT_ON_RAMP_CURRENCY_ZAR`
    </NestedParam>

    <NestedParam parentKey="parameters" childKey="fiatCurrencyAmount" type="string" required={false} default="">
      Specifies a preset fiat amount for the transaction, e.g., '100'. Must be greater than '20'. If not provided, the user will be prompted to enter an amount.
    </NestedParam>

    <NestedParam parentKey="parameters" childKey="paymentMethod" type="enum<string>" required={false} default="">
      Enum options: `FIAT_ON_RAMP_PAYMENT_METHOD_CREDIT_DEBIT_CARD`, `FIAT_ON_RAMP_PAYMENT_METHOD_APPLE_PAY`, `FIAT_ON_RAMP_PAYMENT_METHOD_GBP_BANK_TRANSFER`, `FIAT_ON_RAMP_PAYMENT_METHOD_GBP_OPEN_BANKING_PAYMENT`, `FIAT_ON_RAMP_PAYMENT_METHOD_GOOGLE_PAY`, `FIAT_ON_RAMP_PAYMENT_METHOD_SEPA_BANK_TRANSFER`, `FIAT_ON_RAMP_PAYMENT_METHOD_PIX_INSTANT_PAYMENT`, `FIAT_ON_RAMP_PAYMENT_METHOD_PAYPAL`, `FIAT_ON_RAMP_PAYMENT_METHOD_VENMO`, `FIAT_ON_RAMP_PAYMENT_METHOD_MOONPAY_BALANCE`, `FIAT_ON_RAMP_PAYMENT_METHOD_CRYPTO_ACCOUNT`, `FIAT_ON_RAMP_PAYMENT_METHOD_FIAT_WALLET`, `FIAT_ON_RAMP_PAYMENT_METHOD_ACH_BANK_ACCOUNT`
    </NestedParam>

    <NestedParam parentKey="parameters" childKey="countryCode" type="string" required={false} default="">
      ISO 3166-1 two-digit country code for Coinbase representing the purchasing user’s country of residence, e.g., US, GB.
    </NestedParam>

    <NestedParam parentKey="parameters" childKey="countrySubdivisionCode" type="string" required={false} default="">
      ISO 3166-2 two-digit country subdivision code for Coinbase representing the purchasing user’s subdivision of residence within their country, e.g. NY. Required if country\_code=US.
    </NestedParam>

    <NestedParam parentKey="parameters" childKey="sandboxMode" type="boolean" required={false} default="">
      Optional flag to indicate whether to use the sandbox mode to simulate transactions for the on-ramp provider. Default is false.
    </NestedParam>
  </Expandable>
</ParamField>

<H3Bordered text="Response" />

A successful response returns the following fields:

<ResponseField name="activity" type="object" required={true}>
  The activity object containing type, intent, and result

  <Expandable title="activity details">
    <NestedParam parentKey="activity" childKey="id" type="string" required={true}>
      Unique identifier for a given Activity object.
    </NestedParam>

    <NestedParam parentKey="activity" childKey="organizationId" type="string" required={true}>
      Unique identifier for a given Organization.
    </NestedParam>

    <NestedParam parentKey="activity" childKey="status" type="string" required={true}>
      The activity status
    </NestedParam>

    <NestedParam parentKey="activity" childKey="type" type="string" required={true}>
      The activity type
    </NestedParam>

    <NestedParam parentKey="activity" childKey="intent" type="object" required={true}>
      The intent of the activity

      <Expandable title="intent details">
        <NestedParam parentKey="activity.intent" childKey="initFiatOnRampIntent" type="object" required={true}>
          The initFiatOnRampIntent object

          <Expandable title="initFiatOnRampIntent details">
            <NestedParam parentKey="activity.intent.initFiatOnRampIntent" childKey="onrampProvider" type="enum" required={true}>
              onrampProvider field

              Enum options: `FIAT_ON_RAMP_PROVIDER_COINBASE`, `FIAT_ON_RAMP_PROVIDER_MOONPAY`
            </NestedParam>

            <NestedParam parentKey="activity.intent.initFiatOnRampIntent" childKey="walletAddress" type="string" required={true}>
              Destination wallet address for the buy transaction.
            </NestedParam>

            <NestedParam parentKey="activity.intent.initFiatOnRampIntent" childKey="network" type="enum" required={true}>
              network field

              Enum options: `FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_BITCOIN`, `FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_ETHEREUM`, `FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_SOLANA`, `FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_BASE`
            </NestedParam>

            <NestedParam parentKey="activity.intent.initFiatOnRampIntent" childKey="cryptoCurrencyCode" type="enum" required={true}>
              cryptoCurrencyCode field

              Enum options: `FIAT_ON_RAMP_CRYPTO_CURRENCY_BTC`, `FIAT_ON_RAMP_CRYPTO_CURRENCY_ETH`, `FIAT_ON_RAMP_CRYPTO_CURRENCY_SOL`, `FIAT_ON_RAMP_CRYPTO_CURRENCY_USDC`
            </NestedParam>

            <NestedParam parentKey="activity.intent.initFiatOnRampIntent" childKey="fiatCurrencyCode" type="enum" required={false}>
              fiatCurrencyCode field

              Enum options: `FIAT_ON_RAMP_CURRENCY_AUD`, `FIAT_ON_RAMP_CURRENCY_BGN`, `FIAT_ON_RAMP_CURRENCY_BRL`, `FIAT_ON_RAMP_CURRENCY_CAD`, `FIAT_ON_RAMP_CURRENCY_CHF`, `FIAT_ON_RAMP_CURRENCY_COP`, `FIAT_ON_RAMP_CURRENCY_CZK`, `FIAT_ON_RAMP_CURRENCY_DKK`, `FIAT_ON_RAMP_CURRENCY_DOP`, `FIAT_ON_RAMP_CURRENCY_EGP`, `FIAT_ON_RAMP_CURRENCY_EUR`, `FIAT_ON_RAMP_CURRENCY_GBP`, `FIAT_ON_RAMP_CURRENCY_HKD`, `FIAT_ON_RAMP_CURRENCY_IDR`, `FIAT_ON_RAMP_CURRENCY_ILS`, `FIAT_ON_RAMP_CURRENCY_JOD`, `FIAT_ON_RAMP_CURRENCY_KES`, `FIAT_ON_RAMP_CURRENCY_KWD`, `FIAT_ON_RAMP_CURRENCY_LKR`, `FIAT_ON_RAMP_CURRENCY_MXN`, `FIAT_ON_RAMP_CURRENCY_NGN`, `FIAT_ON_RAMP_CURRENCY_NOK`, `FIAT_ON_RAMP_CURRENCY_NZD`, `FIAT_ON_RAMP_CURRENCY_OMR`, `FIAT_ON_RAMP_CURRENCY_PEN`, `FIAT_ON_RAMP_CURRENCY_PLN`, `FIAT_ON_RAMP_CURRENCY_RON`, `FIAT_ON_RAMP_CURRENCY_SEK`, `FIAT_ON_RAMP_CURRENCY_THB`, `FIAT_ON_RAMP_CURRENCY_TRY`, `FIAT_ON_RAMP_CURRENCY_TWD`, `FIAT_ON_RAMP_CURRENCY_USD`, `FIAT_ON_RAMP_CURRENCY_VND`, `FIAT_ON_RAMP_CURRENCY_ZAR`
            </NestedParam>

            <NestedParam parentKey="activity.intent.initFiatOnRampIntent" childKey="fiatCurrencyAmount" type="string" required={false}>
              Specifies a preset fiat amount for the transaction, e.g., '100'. Must be greater than '20'. If not provided, the user will be prompted to enter an amount.
            </NestedParam>

            <NestedParam parentKey="activity.intent.initFiatOnRampIntent" childKey="paymentMethod" type="enum" required={false}>
              paymentMethod field

              Enum options: `FIAT_ON_RAMP_PAYMENT_METHOD_CREDIT_DEBIT_CARD`, `FIAT_ON_RAMP_PAYMENT_METHOD_APPLE_PAY`, `FIAT_ON_RAMP_PAYMENT_METHOD_GBP_BANK_TRANSFER`, `FIAT_ON_RAMP_PAYMENT_METHOD_GBP_OPEN_BANKING_PAYMENT`, `FIAT_ON_RAMP_PAYMENT_METHOD_GOOGLE_PAY`, `FIAT_ON_RAMP_PAYMENT_METHOD_SEPA_BANK_TRANSFER`, `FIAT_ON_RAMP_PAYMENT_METHOD_PIX_INSTANT_PAYMENT`, `FIAT_ON_RAMP_PAYMENT_METHOD_PAYPAL`, `FIAT_ON_RAMP_PAYMENT_METHOD_VENMO`, `FIAT_ON_RAMP_PAYMENT_METHOD_MOONPAY_BALANCE`, `FIAT_ON_RAMP_PAYMENT_METHOD_CRYPTO_ACCOUNT`, `FIAT_ON_RAMP_PAYMENT_METHOD_FIAT_WALLET`, `FIAT_ON_RAMP_PAYMENT_METHOD_ACH_BANK_ACCOUNT`
            </NestedParam>

            <NestedParam parentKey="activity.intent.initFiatOnRampIntent" childKey="countryCode" type="string" required={false}>
              ISO 3166-1 two-digit country code for Coinbase representing the purchasing user’s country of residence, e.g., US, GB.
            </NestedParam>

            <NestedParam parentKey="activity.intent.initFiatOnRampIntent" childKey="countrySubdivisionCode" type="string" required={false}>
              ISO 3166-2 two-digit country subdivision code for Coinbase representing the purchasing user’s subdivision of residence within their country, e.g. NY. Required if country\_code=US.
            </NestedParam>

            <NestedParam parentKey="activity.intent.initFiatOnRampIntent" childKey="sandboxMode" type="boolean" required={false}>
              Optional flag to indicate whether to use the sandbox mode to simulate transactions for the on-ramp provider. Default is false.
            </NestedParam>
          </Expandable>
        </NestedParam>
      </Expandable>
    </NestedParam>

    <NestedParam parentKey="activity" childKey="result" type="object" required={true}>
      The result of the activity

      <Expandable title="result details">
        <NestedParam parentKey="activity.result" childKey="initFiatOnRampResult" type="object" required={true}>
          The initFiatOnRampResult object

          <Expandable title="initFiatOnRampResult details">
            <NestedParam parentKey="activity.result.initFiatOnRampResult" childKey="onRampUrl" type="string" required={true}>
              Unique URL for a given fiat on-ramp flow.
            </NestedParam>

            <NestedParam parentKey="activity.result.initFiatOnRampResult" childKey="onRampTransactionId" type="string" required={true}>
              Unique identifier used to retrieve transaction statuses for a given fiat on-ramp flow.
            </NestedParam>
          </Expandable>
        </NestedParam>
      </Expandable>
    </NestedParam>

    <NestedParam parentKey="activity" childKey="votes" type="array" required={true}>
      A list of objects representing a particular User's approval or rejection of a Consensus request, including all relevant metadata.
    </NestedParam>

    <NestedParam parentKey="activity" childKey="fingerprint" type="string" required={true}>
      An artifact verifying a User's action.
    </NestedParam>

    <NestedParam parentKey="activity" childKey="canApprove" type="boolean" required={true}>
      Whether the activity can be approved.
    </NestedParam>

    <NestedParam parentKey="activity" childKey="canReject" type="boolean" required={true}>
      Whether the activity can be rejected.
    </NestedParam>

    <NestedParam parentKey="activity" childKey="createdAt" type="string" required={true}>
      The creation timestamp.
    </NestedParam>

    <NestedParam parentKey="activity" childKey="updatedAt" type="string" required={true}>
      The last update timestamp.
    </NestedParam>
  </Expandable>
</ResponseField>

<RequestExample>
  ```bash title="cURL"
  curl --request POST \
    --url https://api.turnkey.com/public/v1/submit/init_fiat_on_ramp \
    --header 'Accept: application/json' \
    --header 'Content-Type: application/json' \
    --header "X-Stamp: <string> (see Authorizations)" \
    --data '{
      "type": "ACTIVITY_TYPE_INIT_FIAT_ON_RAMP",
      "timestampMs": "<string> (e.g. 1746736509954)",
      "organizationId": "<string> (Your Organization ID)",
      "parameters": {
          "onrampProvider": "<FIAT_ON_RAMP_PROVIDER_COINBASE>",
          "walletAddress": "<string>",
          "network": "<FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_BITCOIN>",
          "cryptoCurrencyCode": "<FIAT_ON_RAMP_CRYPTO_CURRENCY_BTC>",
          "fiatCurrencyCode": "<FIAT_ON_RAMP_CURRENCY_AUD>",
          "fiatCurrencyAmount": "<string>",
          "paymentMethod": "<FIAT_ON_RAMP_PAYMENT_METHOD_CREDIT_DEBIT_CARD>",
          "countryCode": "<string>",
          "countrySubdivisionCode": "<string>",
          "sandboxMode": "<boolean>"
      }
  }'
  ```

  ```javascript title="JavaScript"
  import { Turnkey } from "@turnkey/sdk-server";

  const turnkeyClient = new Turnkey({
    apiBaseUrl: "https://api.turnkey.com",
    apiPublicKey: process.env.API_PUBLIC_KEY!,
    apiPrivateKey: process.env.API_PRIVATE_KEY!,
    defaultOrganizationId: process.env.ORGANIZATION_ID!,
  });

  const response = await turnkeyClient.apiClient().initFiatOnRamp({
    onrampProvider: "<FIAT_ON_RAMP_PROVIDER_COINBASE>" // onrampProvider field,
    walletAddress: "<string> (Destination wallet address for the buy transaction.)",
    network: "<FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_BITCOIN>" // network field,
    cryptoCurrencyCode: "<FIAT_ON_RAMP_CRYPTO_CURRENCY_BTC>" // cryptoCurrencyCode field,
    fiatCurrencyCode: "<FIAT_ON_RAMP_CURRENCY_AUD>" // fiatCurrencyCode field,
    fiatCurrencyAmount: "<string> (Specifies a preset fiat amount for the transaction, e.g., '100'. Must be greater than '20'. If not provided, the user will be prompted to enter an amount.)",
    paymentMethod: "<FIAT_ON_RAMP_PAYMENT_METHOD_CREDIT_DEBIT_CARD>" // paymentMethod field,
    countryCode: "<string> (ISO 3166-1 two-digit country code for Coinbase representing the purchasing user’s country of residence, e.g., US, GB.)",
    countrySubdivisionCode: "<string> (ISO 3166-2 two-digit country subdivision code for Coinbase representing the purchasing user’s subdivision of residence within their country, e.g. NY. Required if country_code=US.)",
    sandboxMode: true // Optional flag to indicate whether to use the sandbox mode to simulate transactions for the on-ramp provider. Default is false.
  });
  ```
</RequestExample>

<ResponseExample>
  ```json 200
  {
    "activity": {
      "id": "<activity-id>",
      "status": "ACTIVITY_STATUS_COMPLETED",
      "type": "ACTIVITY_TYPE_INIT_FIAT_ON_RAMP",
      "organizationId": "<organization-id>",
      "timestampMs": "<timestamp> (e.g. 1746736509954)",
      "result": {
        "activity": {
          "id": "<string>",
          "organizationId": "<string>",
          "status": "<string>",
          "type": "<string>",
          "intent": {
            "initFiatOnRampIntent": {
              "onrampProvider": "<FIAT_ON_RAMP_PROVIDER_COINBASE>",
              "walletAddress": "<string>",
              "network": "<FIAT_ON_RAMP_BLOCKCHAIN_NETWORK_BITCOIN>",
              "cryptoCurrencyCode": "<FIAT_ON_RAMP_CRYPTO_CURRENCY_BTC>",
              "fiatCurrencyCode": "<FIAT_ON_RAMP_CURRENCY_AUD>",
              "fiatCurrencyAmount": "<string>",
              "paymentMethod": "<FIAT_ON_RAMP_PAYMENT_METHOD_CREDIT_DEBIT_CARD>",
              "countryCode": "<string>",
              "countrySubdivisionCode": "<string>",
              "sandboxMode": "<boolean>"
            }
          },
          "result": {
            "initFiatOnRampResult": {
              "onRampUrl": "<string>",
              "onRampTransactionId": "<string>"
            }
          },
          "votes": "<array>",
          "fingerprint": "<string>",
          "canApprove": "<boolean>",
          "canReject": "<boolean>",
          "createdAt": "<string>",
          "updatedAt": "<string>"
        }
      }
    }
  }
  ```
</ResponseExample>