mcp:read. The desktop agent’s key gets 403 legacy_key_not_allowed.
List inventory
Only live listings with quantity above 0 are returned. Quick Add cards appear once they are listed on TCGplayer.
limit is 1 to 500 (default 100).
List orders
List pricing rules
status is active, disabled or expired.
Limits
Each API key has a per-minute request limit set by your plan. Rejected API requests count toward this limit. Over it, you get429 rate_limited with a Retry-After header in seconds. Wait that long, then retry.
Pages
Passnext_cursor back as cursor. Stop when it is null. A cursor works only for the store that received it; anything else returns 400 invalid_cursor.