Sitly Barcelona

• Not a vetted agency: Sitly runs no background checks, so check references and meet sitters yourself before hiring
• Free to browse: creating a profile and browsing sitters costs nothing; only messaging sitters first needs paid Premium
• Sitter-set rates: members set their own hourly fee, averaging about €10/hour in Barcelona

An online platform that matches families with local babysitters and nannies: you create a free profile, filter thousands of sitters, then message those who look like a good fit. It works in English as well as Spanish, and you interview and book the sitter directly. Note that it is a matching service, not a vetted agency, so it runs no background checks and you handle references yourself.