> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gr4vy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Network token pass through

Fully PCI certified customers may want to provision their own network tokens rather than relying on the network token provisioning. To allow for this,
support for network token pass through via the API has been enabled, either with or without cryptogram, straight through to a connector.

* Any network token can be passed through, though acceptance (especially in sandbox) varies by connector used
* Network tokens can benefit from BIN insights, though in the sandbox environment the number of cards that result in a valid BIN insights is limited
* Storing externally provisioned network tokens in the vault is currently not supported

## Usage

To pass through a network token, set the `method` value to `network-token` when [creating a transaction](reference/transactions/new-transaction#network-token-payment-method-create). The `cryptogram` value can be set as well, but is optional
in the API. Acceptance of network tokens downstream varies per connector.

<CodeGroup>
  ```json Payment method theme={"system"}
  {
    "method": "network-token",
    "number": "4111111111111111",
    "expiration_date": "11/25",
    "cryptogram": "..."
  }
  ```
</CodeGroup>