A qualidade dos dados fundamentais da Bolsix é realmente impressionante para quem constrói agentes de análise. O fato de extrair P/L, ROE e EPS diretamente dos arquivos da CVM, e não de estimativas ou agregadores externos, garante que o agente cite o documento legal com precisão absoluta. Isso evita erros de interpretação que poderiam ser críticos em ferramentas fiscais ou de renda. O diferencial de separar JCP de dividendos, quando a maioria dos provedores mescla, é um detalhe técnico que faz toda a diferença no cálculo do yield real. A capacidade de fazer bulk quotes para varrer o mercado inteiro em uma única chamada é excelente para screeners e dashboards. A única ressalva é que o plano Pro ainda está em lista de espera, o que pode ser um obstáculo para quem precisa de volume imediato em produção. Ainda assim, a base técnica é sólida, a documentação é clara e a arquitetura com cache duplo Redis e PostgreSQL promete uma estabilidade superior à média dos concorrentes.
Questions about Bolsix
What is Bolsix?
Bolsix provides Brazilian market data through an MCP server and REST API for AI agents like Claude Code, Cursor, and Claude Desktop. It offers access to B3 quotations, CVM fundamentals, dividend history with JCP reported separately, FIIs, ETFs, BDRs, and macroeconomic rates for over 1,200 assets. The service supports natural language querying and uses Redis and PostgreSQL caching to deliver responses with a stated p99 latency of around 1 millisecond.
What are the pricing tiers and billing terms for Bolsix?
Bolsix offers a free plan with 5,000 requests per month and a 200 request per day limit, while the Pro plan costs R$79 per month and includes 100,000 requests per month. The Scale plan is priced at R$299 per month with 1,000,000 requests per month and a contractual 99.9% uptime commitment. Users can cancel anytime and receive a 7-day refund if they choose to stop using the service.
What do users appreciate about the Bolsix platform?
Some reviewers praise the ability to query data in natural language and the structured responses that include source citations and session dates for verification. Others note that the API handles bulk quote requests efficiently, allowing screeners and dashboards to retrieve available asset quotes in a single GET request. The platform also provides ready-to-use prompts for agents to perform specific tasks like screening banks with ROE above 18% and P/VP below 2.
How do the uptime guarantees and support levels differ across plans?
The Pro plan includes a contractual 99.9% uptime SLA, whereas the free and Scale plans only offer best-effort uptime commitments. Additionally, the free plan does not allow commercial use, requiring users to upgrade to Pro or higher for business applications. The Pro tier also includes priority email support, while the free tier has standard support with no dedicated assistance.
What are the cancellation, refund, and overage policies?
The service provides a 7-day refund policy for all paid plans, allowing users to cancel and get their money back if they are not satisfied. For the Pro plan, once the monthly request quota is exhausted, additional calls return a 429 status code until the user purchases extra requests at R$2 per 1,000. The Scale plan allows unlimited requests within the monthly quota but requires contacting sales for Enterprise-level customization.
How are API requests counted and what errors are excluded from the limits?
The API counts each call as one request, including those that return 404 errors. However, validation errors (422), rate-limit responses (429), and invalid keys do not count toward the monthly or daily limits. Tools like compare_stocks may make between 3 to 6 calls internally, while get_fii_summary makes 4 calls, which affects how quickly limits are reached.
What are the usage rights and commercial terms for each plan?
The Grátis plan is designed for prototyping and evaluation but does not permit commercial use. Users who need to build a product or work within a company must select the Pro plan or higher. The Pro plan also includes internal use rights, while the Scale plan allows displaying data to clients, and Enterprise offers redistribution rights for broader commercial deployment.
What specific features and query methods does Bolsix offer?
The platform supports natural language querying, allowing users to ask questions directly to the API. It also offers bulk quote retrieval via a single GET request to retrieve all available assets at once. Additionally, the service provides pre-built prompts for agents to execute specific financial analyses without manual coding.
Where is Bolsix located and what markets does it serve?
The service is located in Brazil and serves the Brazilian market with data on B3 stocks, FIIs, ETFs, and BDRs. It targets developers and AI agents who need real-time or historical financial data for analysis and automation. The platform is accessible globally via its REST API and hosted MCP server.
What are the key differences between the free and paid plans?
The platform offers a free tier with 5,000 monthly requests and a 200 daily limit, which is sufficient for testing and prototyping. The Pro plan at R$79 per month includes 100,000 requests and priority email support, making it suitable for serious product development. The Scale plan at R$299 per month provides 1,000,000 requests and a contractual 99.9% uptime SLA for production environments.
How can users get started with Bolsix?
The service allows users to integrate with AI agents like Claude Code and Cursor through a Python package or hosted MCP server. It supports natural language queries and provides structured data with source citations for verification. The platform also offers bulk quote retrieval and pre-built prompts for common financial tasks.
What is the official website of Bolsix?
The official website of Bolsix is bolsix.io.
How is Bolsix rated on Trustburn?
On Trustburn, Bolsix has a rating of 3.8 out of 5 based on 5 reviews.
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5 Reviews
Estou testando a API agora e a velocidade é surreal. A resposta em menos de 1ms realmente funciona, o que é ótimo para meus agentes. O plano gratuito já dá para explorar bem as funcionalidades sem se preocupar com cartão de crédito. A facilidade de usar linguagem natural com o Claude é bem legal.
A separação correta de JCP e dividendos faz toda a diferença nos cálculos.
A facilidade de integrar o servidor MCP da Bolsix com o Claude Code é notável. A configuração básica leva apenas dois minutos, conforme indicado na documentação, e o uso de um único comando pip simplifica o processo. A resposta em menos de um milissegundo é impressionante para consultas em tempo real. A distinção clara entre dividendos e JCP é um diferencial valioso para cálculos fiscais precisos. A interface REST é direta e a documentação técnica é suficiente para começar sem complicação. Recomendo para quem busca dados confiáveis da B3 com baixa latência.
Ao analisar as informações disponíveis sobre a Bolsix, notei que, embora a plataforma prometa dados de alta qualidade para agentes de IA, há uma ambiguidade significativa em relação aos termos do plano Pro. O site afirma claramente que este plano está 'ainda não disponível para assinatura', exigindo que os usuários entrem em uma lista de espera. No entanto, não fica totalmente explícito se a cota de requisições diária de 10.000 a 50.000 se aplica de forma consistente ou se há limites dinâmicos adicionais que não são detalhados na página principal. Para quem já utiliza a versão gratuita com 500 a 1.000 requisições, a transição para um ambiente de produção parece depender exclusivamente do e-mail de confirmação. A ausência de um contrato ou página de termos de serviço visível para o plano Pro gera uma incerteza razoável sobre o escopo exato do suporte prioritário e da garantia de uptime de 99,9%. Embora a separação de JCP e dividendos seja um diferencial técnico evidente, a falta de transparência imediata nos termos comerciais do tier pago faz com que a decisão de investimento fique suspensa até que mais detalhes sejam comunicados. Para empresas que precisam de previsibilidade imediata, essa fase de espera pode ser um obstáculo operacional.
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About Bolsix
Bolsix provides Brazilian market data through an MCP server and REST API for use by AI agents such as Claude Code, Cursor, and Claude Desktop. The service offers access to B3 quotations, CVM fundamentals, dividend history (with JCP reported separately), FIIs, ETFs, BDRs, and macroeconomic rates for more than 1,200 assets. It supports natural language querying by AI agents and uses a Redis and PostgreSQL caching layer to deliver responses with a stated p99 latency of around 1 millisecond. Bolsix offers free and paid plans, is available via a Python package, and reports a 99.9% uptime SLA on its Pro tier.
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- bolsix.io
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