CURLOPT_XOAUTH2_BEARER (3) Linux Manual Page

ByLinux Manual Posted onApr 20, 2026May 12, 2026 Updated onMay 12, 2026

CURLOPT_XOAUTH2_BEARER – specify OAuth 2.0 access token

Synopsis

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_XOAUTH2_BEARER, char *token);

Description

Pass a char * as parameter, which should point to the zero terminated OAuth 2.0 Bearer Access Token for use with IMAP, POP3 and SMTP servers that support the OAuth 2.0 Authorization Framework.

Note: The user name used to generate the Bearer Token should be supplied via the CURLOPT_USERNAME(3) option.

Default

NULL

Protocols

IMAP, POP3 and SMTP

Example

TODO

Availability

Added in 7.33.0

Return Value

Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.