Check Mutuals on X

Find mutual follows and followers-you-know between X accounts.

Endpoints

Base URL: https://xquik.com/api/v1. Auth: x-api-key: xq_... header.

Typical flow

1. Ask for two handles.
2. For A vs B mutual check: GET /x/followers/check?source=<a>&target=<b> and reverse. source and target may be handles or numeric IDs.
3. For A's-followers-that-also-follow-B: resolve B to a numeric id via GET /x/users/{username}, then GET /x/users/{id}/followers-you-know through a connected account context.
4. Present as a small list with bios.