There is no form field for an _access token_ at:

 - https://api.stackexchange.com/docs/me-reputation-history
 - https://api.stackexchange.com/docs/me-full-reputation-history

After attempting to _Run_ the API method from either page:

    {
        "error_id": 401,
        "error_name": "access_token_required",
        "error_message": "This method requires an access_token"
    }

The _/users_ versions have the field:

 - https://api.stackexchange.com/docs/reputation-history
 - https://api.stackexchange.com/docs/full-reputation-history