# List Crypto Chains

List the chains enabled for USDC crypto deposit address portals, crypto wallet address counterparties and on-chain transfers, in the order to offer them. Pass a chain's `code` as `chain` when creating a portal or counterparty.

Endpoint: GET /api/v2/crypto-chains/
Version: Version: 31e8d97f
Security: HTTPBearer

## Security:

  - `HTTPBearer` (unknown)
    http bearer

## Header parameters:

  - `x-jiko-idempotency` (string, required)
    A new UUID that you generate for each request, reads included. It is part of the request signature and prevents replay of a request. A value that was already sent in the last hour is rejected with `409 jiko.errors.DuplicateRequestError`, even if the first request failed. When you retry a request, generate a new value and sign the request again.

  - `x-jiko-signature` (string, required)
    Base64-encoded HMAC-SHA256 hash of `x-jiko-idempotency + request pathname + body`, keyed with your shared secret. See [Authentication](/products/partner-api/guides/building/auth) for the full algorithm and a code sample.

## Response 200:

  - `200` (unknown)
    Successful Response

## Response 200 fields (application/json):

  - `offset` (integer, required)

  - `count` (integer, required)

  - `items` (array, required)

  - `items.code` (string, required)
    The chain's Circle chain code, such as `ETH`.

  - `items.name` (string, required)
    The chain's display name, such as `Ethereum`.

  - `object_type` (string)

## Response 401:

  - `401` (unknown)
    The access token is missing, invalid or expired.

## Response 401 fields (application/json):

  - `type` (string, required)

  - `instance` (string, required)

  - `detail` (string, required)

  - `trace_id` (any)

  - `fields` (any)
    Present only on input validation errors. Each entry identifies one invalid field: `loc` is its location, `msg` is the problem, and `type` is the validation rule that failed.

## Response 403:

  - `403` (unknown)
    `x-jiko-signature` does not match the request, or the access token does not permit this action.

## Response 403 fields (application/json):

  - `type` (string, required)

  - `instance` (string, required)

  - `detail` (string, required)

  - `trace_id` (any)

  - `fields` (any)
    Present only on input validation errors. Each entry identifies one invalid field: `loc` is its location, `msg` is the problem, and `type` is the validation rule that failed.

## Response 422:

  - `422` (unknown)
    Validation Error

## Response 422 fields (application/json):

  - `detail` (array)

  - `detail.loc` (array, required)

  - `detail.msg` (string, required)

  - `detail.type` (string, required)

  - `detail.input` (any)

  - `detail.ctx` (object)