"RAG MCP servers with quality validation" matching MCP servers:

MCP server for Russian Rosreestr open cadastral data — lookup by cadastral number, address or coordinates; cadastral value with history.

Provides read-only access to official Brazilian real estate registration data (ONR) via a single tool. Works with any MCP client over HTTP, with prepaid pay-per-use billing.

Provides read-only access to official cadastral data of federal properties (Imóveis da União) from SEFAZ SPU.

Enables querying official ARISP property registry data for viewing requests, with prepaid credits and read-only access, usable from any MCP client.

Enables natural-language queries for São Paulo's official reference property value (Valor Venal de Referência) via a hosted, read-only MCP tool with prepaid per-query credit.

Enables read-only, official-source queries for Rio de Janeiro IPTU cadastral element certificates through natural language, with prepaid pay-per-query usage.

MCP server for querying official Brazilian federal revenue (Cafir) data, providing a single read-only tool for consulting rural property records via natural language.

Enables querying official Brazilian registry records (ARISP) for lista de pedidos (list of requests) using a read-only MCP tool, with prepaid credit payment.

MCP server to query Brazil's rural property registry (CAFIR) using the CIB code, providing read-only consultation of rural property data via a hosted API with prepaid credits.

MCP server that enables downloading property registration records (matrícula) from official Brazilian registries, with read-only access and pay-per-use credits.

Provides read-only access to official property transfer documents from ECRVSP, allowing AI agents to query document information via natural language.

Este servidor MCP permite consultar recibos oficiais do Registradores (ARISP) de forma somente leitura, permitindo download de recibos de certidões para integração com agentes de IA.

Enables consultation of São Paulo city property tax (IPTU) certificates from official sources. Read-only tool for querying tax certificate data through natural language in any MCP client.

Read-only MCP server that enables consulting official account information from the Brazilian registry ARISP, with a single query tool and prepaid credit-based pricing.

Provides public real estate consultation from an official source, with pay-per-query using prepaid credits.

This MCP server enables querying official sources to download property registration receipts (recibo) from ARISP, with read-only access and pay-per-use credits.

MCP server for consulting and issuing property certificates for federal real estate in Brazil through official SEFAZ SPU sources, with read-only access and pay-per-use credits.

Enables read-only consultation of official INCRA SIGEF parcel data via a single MCP tool, using prepaid pay-per-query credits.

Enables searching Polish administrative areas and retrieving real estate transaction data from the official registry via geoportal.gov.pl.

Hosted, pay-per-call MCP server for Cook County / Chicago property records — parcels, recorded sales & deeds, building permits, tax assessments, and comparable sales — by street address or 14-digit PIN. Pay per call via x402 (USDC on Base/Solana); no signup or API key.