"Examples of MCPs (Microservices Communication Protocols) That Do Not Require API Keys" matching MCP connectors:

The agent-native cloud: database, functions, AI, storage, computers. 50 tools, one API key.

AMZScout Skill + MCP gives AI agents live access to real Amazon marketplace data across 14 Amazon marketplaces. Analyze any ASIN, validate product ideas, research niches, compare competitors, discover profitable keywords, and build data-driven PPC strategies using trusted Amazon insights instead of AI assumptions. Works with Claude, ChatGPT, Cursor, and any other MCP-compatible AI client. To connect, you'll need an AMZScout API plan and authorize your account. Get access and view pricing here: https://learn.amzscout.net/amazon-product-api-for-ai-agents

Build, validate, deploy — HTTP APIs, cron jobs, webhooks and MCP tools — from your AI client. Air Pipe MCP token as a bearer credential, e.g. 'Authorization: Bearer <token>'. Create one at https://app.airpipe.io/

CRCP: Central de Registros de Certificados Profissionais, official-source lookup. Platform-hosted, p

Conselho Regional de Odontologia PE: Cadastro, official-source lookup. Platform-hosted, pay per quer

Your Supabase account in natural language: run SQL, apply migrations, manage tables, storage, edge f

Your Databricks Lakehouse in natural language: run SQL on your SQL warehouses, track long-running qu

Conselho Regional de Odontologia SC: Cadastro, official-source lookup. Platform-hosted, pay per quer

Conselho Regional de Odontologia RR: Cadastro, official-source lookup. Platform-hosted, pay per quer

DETRAN RO: Vehicle, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Conselho Regional de Odontologia: Cadastro, official-source lookup. Platform-hosted, pay per query w

SEFAZ SPU: Dados Cadastrais de Imóvel da União, official-source lookup. Platform-hosted, pay per que

Tribunal TSE: Certificate de Quitação Eleitoral, official-source lookup. Platform-hosted, pay per qu

ECRVSP Restrições: Bloqueios Ativos DETRAN, official-source lookup. Platform-hosted, pay per query w

Conselho Regional de Odontologia TO: Cadastro, official-source lookup. Platform-hosted, pay per quer

Conselho Regional de Odontologia PB: Cadastro, official-source lookup. Platform-hosted, pay per quer

Conselho Regional de Enfermagem PR: Cadastro, official-source lookup. Platform-hosted, pay per query

SEFAZ RS: Debts Veiculares, official-source lookup. Platform-hosted, pay per query with prepaid cred

Lists a company's filed documents at JUCESP by NIRE. Platform-hosted, no credentials, pay per query

IBGE: Código de Município, official-source lookup. Platform-hosted, pay per query with prepaid credi