Invalid or missing API key
The request did not carry a valid, active API key in an accepted place.
"type": "https://ohlc.io/problems/invalid-api-key"
Why it happens
- No
Authorization: Bearerheader, or a malformed one. - A revoked, expired or mistyped key, including keys in the original format revoked on 2026-09-27.
api_key=used on a non-GET request or from a browser, where only the header is accepted.
How to fix it
- Send
Authorization: Bearer $OHLC_API_KEY. - Create a new key in the dashboard if this one was revoked.
- See authentication.