Compare buying vs renting a property with detailed financial simulations for Brazil
Financial simulator for Brazilian real estate decisions. Compares buying versus renting scenarios, calculates affordability, analyzes sensitivity to property appreciation and investment returns, and provides year-by-year breakeven analysis with municipal tax rates.
Try asking Muse: "Should I buy or rent this apartment in São Paulo given my income and down payment?"
Source: Found in the official MCP Registry (io.github.ronybarbosa/alugar-ou-comprar) · First listed September 25, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 3 h ago.
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
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Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://alugar-ou-comprar.vercel.app/api/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Alugar ou Comprar is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://alugar-ou-comprar.vercel.app/api/mcpResponse time at the last check: 89ms. Worked in 87.2% of checks over 30 days.
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
sensitivity_analysisExecuta uma análise de sensibilidade cruzando taxas de valorização do imóvel com rendimentos do investimento alternativo. Retorna uma matriz onde cada célula indica se compensa comprar (C) ou alugar (A), além do ano de breakeven patrimonial. Reusa o mesmo motor de simulação de sisimulate_buy_vs_rentExecuta a simulação determinística "comprar vs alugar" para um imóvel. Aceita parâmetros simples ou múltiplos cenários (pessimista/base/otimista) via campo "cenarios". Retorna veredito, ano e mês de breakeven, vantagem patrimonial final, custos do primeiro mês, snapshots anuais crecommendation_contextualGera uma recomendação contextual entre alugar e comprar, considerando horizonte de permanência e sensibilidade aos parâmetros de valorização do imóvel e rendimento do investimento alternativo. Retorna horizonte de corte (breakeven patrimonial), veredito ano a ano, thresholds de sgenerate_share_linkGera links compartilháveis para a simulação: um com query params (preenche o formulário da home) e outro no formato /simular/<slug> (painel interativo completo com gráficos) em https://alugar-ou-comprar.vercel.app.check_affordabilityCalcula o valor máximo de imóvel que a renda familiar consegue financiar, considerando regras de comprometimento de renda, entrada e custos de transação.get_municipio_ratesBusca alíquotas de ITBI, IPTU, escritura e registro de um município brasileiro. Passe municipioId para busca exata, ou uf/nome para filtrar. Sem filtro retorna a lista completa.get_rental_yieldCalcula o rental yield (retorno anual e mensal) a partir do valor do imóvel e do aluguel mensal. Interpreta o indicador: < 5% a.a. = aluguel relativamente barato; 5–7% = intermediário; 7–9% = aluguel caro; > 9% = aluguel muito caro. Indicador inicial, não é uma regra absoluta.calculate_cetCalcula o CET (Custo Efetivo Total) anual de um financiamento imobiliário, incluindo juros, seguros MIP/DFI e taxas administrativas. Aceita os mesmos parâmetros da simulação comprar vs alugar.simulate_tr_evolutionRetorna uma série mensal projetada de TR (Taxa Referencial) para uso em financiamentos indexados. Modo 'historical' usa os dados de data/tr_historical.json; modo 'projected' usa TR base constante.max_price_from_rentCalcula o preço máximo de imóvel compatível com um aluguel mensal máximo informado. Considera parcela de financiamento (PRICE), condomínio, IPTU, manutenção, seguros e custo de oportunidade da entrada. Retorna o preço máximo e o custo mensal estimado nos cenários atual, otimista get_default_parametersRetorna o conjunto ativo de parâmetros padrão brasileiros (taxas, prazos, custos) usados pelo site e pelas simulações.compare_amortization_strategiesCompara 3 estratégias de uso de uma renda extra mensal: A) pagar apenas a parcela do financiamento, B) investir a renda extra, C) amortizar extraordinariamente o financiamento. Retorna o patrimônio líquido final de cada estratégia, o breakeven e uma recomendação.get_site_infoRetorna informações sobre o site É melhor alugar ou comprar um imóvel e como acessar os painéis interativos.https://alugar-ou-comprar.vercel.app/api/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Alugar ou Comprar to help me. It is a free service with an MCP server at https://alugar-ou-comprar.vercel.app/api/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
At the last check (November 13, 2026, 11:45 UTC) the endpoint was having trouble, answering in 89ms. Over the last 7 days it answered 0% of health checks. It is checked every 15 minutes.
It was screened on September 25, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
It exposes 13 tools, including sensitivity_analysis, simulate_buy_vs_rent, recommendation_contextual, generate_share_link. For example, you could ask Muse: "Should I buy or rent this apartment in São Paulo given my income and down payment?"
This listing was added from public sources (Found in the official MCP Registry (io.github.ronybarbosa/alugar-ou-comprar)). If you build Alugar ou Comprar, claim it to correct the details and get your badge.
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