I am using above blockfrost api to get address balance.

However, it isn't working with enterprise address, I am getting 504 error for enterprise address.

I also tried https://api.koios.rest/#post-/address_assets, getting same 504 error.

How can I get balance for enterprise address?

  • 1
    This endpoint also works with enterprise addresses for me. Dec 6, 2022 at 20:24
  • Can you let me know address?
    – Heindrick
    Dec 6, 2022 at 20:26

1 Answer 1


The endpoint is working with enterprise addresses too (as well as with payment credentials or any other addresses).

$ curl -s  -H "project_id: ..." \
   https://cardano-mainnet.blockfrost.io/api/v0/addresses/addr1v8px4syex8e07e6c2ucfheh27t2tcxxjm5el22g0cw32m5g77jc7x \
   | jq
  "address": "addr1v8px4syex8e07e6c2ucfheh27t2tcxxjm5el22g0cw32m5g77jc7x",
  "amount": [
      "unit": "lovelace",
      "quantity": "17374229558"
  "stake_address": null,
  "type": "shelley",
  "script": false


As you can see in the example above, this address does not contain any stake_address.

  • Thank you for your answer. Could you check this address ? addr1v9u7va2sktlnz8dp3qadpnxxlv4m03672jy6elmntlxxs7q9nnwl9 Why is it not working?
    – Heindrick
    Dec 6, 2022 at 20:59
  • It works fine for me. When you open cardano-mainnet.blockfrost.io/api/v0/addresses/… what do you get? Dec 6, 2022 at 21:01
  • Oh, /addresses/{address}api is working. I was trying /addresses/${address}/extended
    – Heindrick
    Dec 6, 2022 at 21:08
  • Not sure why, .../extended also works for enterprise addresses generally, but not for this particular one. Maybe related to the high number of transactions, so could be a bug in blockfrost. Dec 7, 2022 at 10:07

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