I access rpc interface of https://rpcalpha.tzbeta.net:443 through postman, and some rpc give me return value, but some return the error:

    "message": "Missing Authentication Token"

such as, /chains/<chain_id>/blocks/<block_id> returned value: enter image description here

and ../<block_id>/helpers/parse/operations returned error:enter image description here

1 Answer 1


First of all, ../<block_id>/helpers/parse/operations is a POST method, not GET.

Also, it's quite common when owners of public RPC nodes close some endpoints to prevent abusing. If you see an auth error, try to contact the owner, or choose another public RPC node.

Here is the best choice in my opinion: https://tezos.org.ua/#infrastructure


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.