Mercado Libre is the dominant LATAM marketplace — seller sessions track IP geo, device history, and Mercado Pago linkage strictly. Cross-border agencies often run ML alongside Amazon US — separate Multilogin profiles per marketplace. Multilogin gives each ML seller an isolated Mimic profile; the Mercado Libre app runs on cloud phone separately.
Site → profile defaults
| Site | Timezone | Proxy | Language preset |
|---|---|---|---|
| mercadolibre.com.br | America/Sao_Paulo | BR sticky mobile/ISP | pt-BR |
| mercadolibre.com.mx | America/Mexico_City | MX sticky | es-MX |
| mercadolibre.com.ar | America/Argentina/Buenos_Aires | AR sticky | es-AR |
| mercadolibre.cl | America/Santiago | CL sticky | es-CL |
| mercadolibre.com.co | America/Bogota | CO sticky | es-CO |
CMDB row (one ML seller)
seller_id: ml_br_acme mlx_profile_id: uuid-... site: mercadolibre.com.br legal_entity: CNPJ / local entity web_proxy: br-mobile-sticky-09 cloud_device_id: geelark-xxxx # ML app geo: BR mercado_pago_linked: true tier: prod
Hybrid stack (web + app)
| Layer | Tool | Use |
|---|---|---|
| Web | Multilogin Mimic | Listings, orders, Mercado Envíos, ads |
| Mobile | Cloud phone (GeeLark/DuoPlus) | App push, buyer chat, QR flows |
| Shared | CMDB seller_id, geo | Never share cookies between layers |
Architecture: hybrid guide · Cloud phone API: GeeLark/DuoPlus.
Profile hardening
- Mimic — Windows/macOS preset stable; language = site locale
- Sticky proxy in registration country — staff US VPN triggers verification
- Warm profile: browse ML as buyer before seller login
- Fingerprint audit before bulk listing automation
- WebRTC/DNS aligned to proxy geo
Automation boundaries
| Task | Automation |
|---|---|
| Login + 2FA | Human on production accounts |
| Bulk listing upload (CSV/API) | Post-login, rate-limited; queue worker OK |
| Order export | Queue worker |
| Mercado Pago / bank / tax | Never automate |
| Reputation appeals | Manual only |
Ban recovery
LATAM geo mismatch is the #1 ops mistake. On restriction: ban recovery runbook — pause queue, move profile to burn tier, audit proxy country vs CNPJ/RFC registration.
Related
Disclosure: MLX-MMO affiliated with Multilogin. Mercado Libre Terms apply — technical isolation does not replace compliance review.