curl --request POST \
  --url https://amoy-relayer.sequence.app/rpc/Relayer/FeeTokens \
  --header 'Content-Type: application/json' \
  --header 'X-Access-Key: <api-key>' \
  --data '{}'

{
  "isFeeRequired": true,
  "tokens": [
    {
      "chainId": 123,
      "name": "<string>",
      "symbol": "<string>",
      "type": "UNKNOWN",
      "decimals": 123,
      "logoURL": "<string>",
      "contractAddress": "<string>",
      "tokenID": "<string>"
    }
  ]
}