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Forum on trading, automated trading systems and testing trading strategies

MQL5.community OAuth.

Vladislav Andruschenko, 2026.06.13 07:53

@MetaQuotes @Pavel Kozlov 


Additional diagnostic information:

I have now tested the OAuth flow again with the official endpoints from the article:

Authorization endpoint:
https://www.mql5.com/en/oauth/login

Token endpoint:
https://www.mql5.com/api/oauth/access_token

User endpoint:
https://www.mql5.com/api/oauth/user_info

The authorization code is received successfully.

The token endpoint returns HTTP 200 and a valid-looking response containing:

  • access_token

  • refresh_token

  • expires_in

  • token_type: Bearer

Immediately after receiving this token, I call:

https://www.mql5.com/api/oauth/user_info

Result:

POST request returns HTTP 200 with:

{ "error": { "error": 103, "message": "Access token is invalid because the user is not authorized" } }

GET request returns an HTML 404 page instead of API JSON.

I also tested scope=profile, but the result is the same.

Could MetaQuotes please confirm the exact required request format for /api/oauth/user_info?

Specifically:

  1. Should user_info be called by GET or POST?

  2. Should the token be sent as Authorization: Bearer <access_token> or as access_token in the POST body?

  3. Is any scope required?

  4. Does my OAuth application need additional permission to access user_info?

  5. Is /api/oauth/user_info currently working correctly?


Please note: I am using the official OAuth application endpoints from the MQL5 account Applications section.