[Action required] API changes announcement for existing customers

Note: This announcement applies to API customers that are registered to a Prototype and Developer plans.

Hello all!

We are writing to inform you that a new set of plans is replacing our current application plans (Prototype and Developer plans) and prices.

As of 10th May 2022, the Prototype and Developer plans will no longer be operational. Oxford Dictionaries API will offer two new plans:

- Introductory plan
- Unlimited plan

For Prototype and Developer plan customers, changes are happening between 12th April 2022 and 10th May 2022. So do not worry! You will have time to check the options and choose how you wish to proceed using our data by selecting the Introductory or Unlimited plan.

For further instructions on how to change plans, and for more information, please visit our new plans announcement page.

Link: https://developer.oxforddictionaries.com/new-plans-announcement

If you have any questions, please feel free to leave us a comment or reach us at our Contact Us page. (https://developer.oxforddictionaries.com/contact-us)

The Oxford dictionaries API team

Getting error 400 on the entries endpoint

VisamaVisama Member

I'm trying to make a call in Postman before trying it out in the app I'm doing in Flutter, but for some reason it won't work. I copied a couple times the app id and app key that I have with my account, but I don't know what else do I have to do.


  • TaisFukushimaTaisFukushima Member, Administrator, Moderator admin

    Hello @Visama

    Are you including the "Host" header in your request? If you don't include this, then you get a 400 Error.
    In Postman, the "Host" header can be auto-generated – see https://learning.postman.com/docs/sending-requests/requests/#auto-generated-headers.

    In Postman, you can see all the request headers are by clicking the "6 hidden" option at the top of the list of headers.
    Ensure that the Host header is included. If it is included and the problem still occurs, please send us 2 screenshots for the Postman window:
    Both should show all headers (none hidden), with one showing the Body of the response and the other showing the Headers of the response.

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