We are investigating an issue affecting some clients using our Time Series (/time-series.json) API endpoint.
The issue affects requests to `/time-series.json` which specify the same `start` and `end` dates (i.e. requests for a single day of data) and do not specify a subset of currencies via the `symbols` parameter. These requests incorrectly return a `400` error.
All other API endpoints, and all other normal requests to the Time Series API (i.e. in all cases where a client requests multiple days of data or requests a specific subset of currencies via the `symbols` parameter), are unaffected.
We will update this page as soon as we have resolved or have further information.
Please contact us at firstname.lastname@example.org
with any questions or concerns.