diff --git a/app/api/operator.py b/app/api/operator.py
index 68d4c14..6492c85 100644
--- a/app/api/operator.py
+++ b/app/api/operator.py
@@ -303,6 +303,16 @@ def tiny_test(user=Depends(operator)):
     audit('tiny_tested', operator=user, ok=all(v == 'ok' for v in results.values()))
     return {'ok': all(v == 'ok' for v in results.values()), 'results': results}
 
+@router.post('/api/operator/mercadopago/check')
+def mercadopago_check(user=Depends(operator)):
+    """The Mercado Pago account behind the configured token; reads only."""
+    if payment.name != 'mercadopago':
+        raise HTTPException(409, 'Mercado Pago não está configurado')
+    from ..mercadopago_probe import check
+    audit('mercadopago_check', operator=user)
+    return check(payment.access_token)
+
+
 @router.get('/api/operator/tiny/callback')
 def tiny_callback(code: str = Query('', max_length=4096), state: str = Query('', max_length=128),
                   error: str = Query('', max_length=128)):
diff --git a/app/mercadopago_probe.py b/app/mercadopago_probe.py
index 32f3c41..d929cf8 100644
--- a/app/mercadopago_probe.py
+++ b/app/mercadopago_probe.py
@@ -3,7 +3,7 @@
     python -m app.mercadopago_probe [--bin 503143] [--valor 50]
 
 Run from the api container's console (Portainer > Containers > api >
-Console). It creates nothing and charges nothing: it asks Mercado Pago which
+Console), or with "Verificar conta" on the Kanban's Integrations tab. It creates nothing and charges nothing: it asks Mercado Pago which
 account the token belongs to, which card methods the account accepts, and how
 it classifies a card number's first digits (type, issuer, instalments). That
 is what payment errors such as 10111 (issuer) and 10113 (method excluded by a
@@ -20,9 +20,35 @@ from .core.secrets import load as load_secret_files
 API = 'https://api.mercadopago.com'
 
 
+def check(token, bin_='548083', amount='50', transport=None):
+    """The account, its card methods and how a card's first digits are read."""
+    http = httpx.Client(base_url=API, timeout=15, transport=transport,
+                        headers={'Authorization': f'Bearer {token}'})
+    result = {'token': 'test' if token.startswith('TEST-') else 'production'}
+    me = http.get('/users/me')
+    if me.status_code == 200:
+        user = me.json()
+        tags = user.get('tags') or []
+        result['account'] = {'id': user.get('id'), 'nickname': user.get('nickname'),
+                             'site': user.get('site_id'), 'test_user': 'test_user' in tags, 'tags': tags}
+    else:
+        result['account'] = {'error': f'HTTP {me.status_code}'}
+    methods = http.get('/v1/payment_methods')
+    result['cards'] = ([{'id': m.get('id'), 'type': m.get('payment_type_id'), 'status': m.get('status')}
+                        for m in methods.json() if m.get('payment_type_id') in ('credit_card', 'debit_card')]
+                       if methods.status_code == 200 else {'error': f'HTTP {methods.status_code}'})
+    options = http.get('/v1/payment_methods/installments', params={'bin': bin_, 'amount': amount})
+    result['bin'] = ([{'method': o.get('payment_method_id'), 'type': o.get('payment_type_id'),
+                       'issuer': (o.get('issuer') or {}).get('name'),
+                       'installments': [c.get('installments') for c in o.get('payer_costs') or []]}
+                      for o in options.json()]
+                     if options.status_code == 200 else {'error': f'HTTP {options.status_code} {options.text[:200]}'})
+    return result
+
+
 def main(argv=None):
     parser = argparse.ArgumentParser(prog='python -m app.mercadopago_probe')
-    parser.add_argument('--bin', default='503143', help="the card's first six digits (default: the Mastercard test card)")
+    parser.add_argument('--bin', default='548083', help="the card's first six digits")
     parser.add_argument('--valor', default='50', help='amount in reais for the instalment lookup')
     args = parser.parse_args(argv)
     load_secret_files()
@@ -30,37 +56,8 @@ def main(argv=None):
     if not token:
         print('MP_ACCESS_TOKEN is not set in this container.')
         return 1
-    http = httpx.Client(base_url=API, timeout=15, headers={'Authorization': f'Bearer {token}'})
-
-    print(f"Token: {'TEST' if token.startswith('TEST-') else 'produção'}")
-    me = http.get('/users/me')
-    if me.status_code == 200:
-        user = me.json()
-        tags = user.get('tags') or []
-        print(f"Conta: id {user.get('id')} · {user.get('nickname')} · site {user.get('site_id')} · "
-              f"usuário de teste: {'sim' if 'test_user' in tags else 'não'} · tags {tags}")
-    else:
-        print(f'Conta: HTTP {me.status_code} {me.text[:200]}')
-
-    methods = http.get('/v1/payment_methods')
-    if methods.status_code == 200:
-        cards = [m for m in methods.json() if m.get('payment_type_id') in ('credit_card', 'debit_card')]
-        print('Cartões aceitos pela conta:')
-        for m in cards:
-            print(f"  {m.get('id'):<12} {m.get('payment_type_id'):<12} {m.get('status')}")
-    else:
-        print(f'Meios de pagamento: HTTP {methods.status_code} {methods.text[:200]}')
-
-    quote = http.get('/v1/payment_methods/installments', params={'bin': args.bin, 'amount': args.valor})
-    if quote.status_code == 200 and quote.json():
-        print(f'BIN {args.bin}:')
-        for option in quote.json():
-            issuer = option.get('issuer') or {}
-            counts = [c.get('installments') for c in option.get('payer_costs') or []]
-            print(f"  meio {option.get('payment_method_id')} · tipo {option.get('payment_type_id')} · "
-                  f"emissor {issuer.get('id')} ({issuer.get('name')}) · parcelas {counts}")
-    else:
-        print(f'BIN {args.bin}: HTTP {quote.status_code} {quote.text[:300]}')
+    import json
+    print(json.dumps(check(token, args.bin, args.valor), indent=2, ensure_ascii=False))
     return 0
 
 
diff --git a/web/kanban.js b/web/kanban.js
index a5f4448..3517abe 100644
--- a/web/kanban.js
+++ b/web/kanban.js
@@ -674,8 +674,15 @@ function renderIntegrations(){
       t.connected&&!t.problem?'ok':'warn',tinyDetail(t),actions));
   }
   const mp=board.providers?.payment;
+  const mpActions=mp==='mercadopago'?[button('Verificar conta',async()=>{
+    const r=await api('/mercadopago/check',{});
+    const conta=r.account.error?'conta: '+r.account.error:'conta '+r.account.nickname+' ('+r.account.id+') · '+
+      (r.account.test_user?'usuário de teste':'não é usuário de teste');
+    const bin=Array.isArray(r.bin)?(r.bin.length?r.bin.map(o=>o.method+' '+o.type+' · '+o.issuer+' · até '+Math.max(...o.installments)+'x').join('; '):'cartão de teste não reconhecido'):'cartão: '+r.bin.error;
+    say('Mercado Pago: credencial '+(r.token==='test'?'de teste':'de produção')+' · '+conta+' · '+bin,false,60000);
+  },'btn ghost')]:[];
   cards.push(integration('Mercado Pago',mp==='mercadopago'?'Ativo':'Não configurado',mp==='mercadopago'?'ok':'off',
-    mp==='mercadopago'?'PIX e cartão ativos.':'Aguardando credenciais.'));
+    mp==='mercadopago'?'PIX e cartão ativos.':'Aguardando credenciais.',mpActions));
   const fr=board.providers?.freight||{};
   const kg=v=>String(v).replace('.',',')+' kg';
   cards.push(fr.provider==='jadlog'