"Examples of MCPs (Microservices Communication Protocols) That Do Not Require API Keys" matching MCP connectors:
Matching Connector Tools:
Zillow MCP for AI agents: property data, Zestimates & listings — 300+ fields per home. Free tier.
AI title risk analysis for Florida real estate closing docs. Get an API key at curagent.io
Cook County / Chicago property by address or PIN: sales, permits, assessments, comps. Pay via x402.
A Model Context Protocol server that provides Philippine License to Sell (LTS) verification data to LLMs. Built on Cloudflare Workers with Supabase. Public, read-only, no authentication required. Data sourced from the Department of Human Settlements and Urban Development (DHSUD) License to Sell registry and cross-referenced with published real estate projects on REN.PH.
FR/EN French rental & frontalier tools: zone tendue, DPE, IRL, LAMal, CAF — sourced, dated answers.
Search and compare current homes across Portuguese real-estate portals with Casatoo's hosted MCP.
Search authorized real estate in Mexico and manage favorites and publishing with OAuth.
Free check of a California home for a Proposition 8 property tax reduction, plus owner filing.
Free financial calculators (rent vs buy, mortgage, retirement) plus the FinFam Pulse money digest.
Building intelligence for NYC, LA, Chicago rentals: violations, 311, reviews, rents, landlords.
Prefeitura RJ Rio de Janeiro: Certificate de Elementos Cadastrais - IPTU, official-source lookup. Pl
ONR: Mapa do Registro de Imóveis, official-source lookup. Platform-hosted, pay per query with prepai
Registradores (ARISP): Lookup de Informações da Conta, official-source lookup. Platform-hosted, pay
SNCR: Lookup Pública de Imóveis, official-source lookup. Platform-hosted, pay per query with prepaid
Registradores (ARISP) Matrícula: Download de Matrícula, official-source lookup. Platform-hosted, pay
Prefeitura SP São Paulo: Valor Venal de Referência, official-source lookup. Platform-hosted, pay per
INCRA SIGEF: Parcelas, official-source lookup. Platform-hosted, pay per query with prepaid credit.
US mortgage calculator and amortization API with 50-state property tax, PMI, and affordability data.
Registradores (ARISP) Matrícula: Download de Recibo, official-source lookup. Platform-hosted, pay pe
Registradores (ARISP) Matrícula: Novo Pedido de Visualização de Matrícula, official-source lookup. P