Endpoint - https://ropsten.api.0x.org/sra/v4/order doesn't work anymore (404 error). Faced with this problem only on ropsten. Mainnet works fine.

Did 0x change ropsten endpoints?

1 Answer 1


The /sra/v4 endpoints were renamed to /orderbook/v1 some time ago, you can refer to https://0x.org/docs/api#post-orderbookv1order for updated docs

  • Was it renamed again? The orderbook/v1 endpoint stopped working for me a week ago, ie I cannot post any orders anymore, returning a 400 Bad Request error Mar 26, 2022 at 6:28
  • No major changes to the orderbook, however, we are experiencing some ongoing issues with that API, please refer to status.0x.org for more info
    – kimpers
    Mar 28, 2022 at 12:47

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