Bolsai
Official Brazilian financial data via API for stocks, FIIs, and macroeconomics.
Product memo
Targets Brazilian developers, analysts, and fund managers drowning in fragmented financial data. Provides a unified API for official stock and FII data, directly sourcing from B3, CVM, and BCB. This direct access to regulatory data creates a formidable moat, offering trust and accuracy that fragmented competitors struggle to match. The AI integration for natural language analysis offers a unique wedge for deeper insights.
For who
Brazilian financial analysts, developers, and fund managers
Solves what
Provides official, comprehensive financial data for Brazilian stocks and FIIs via API.
- Official B3, CVM, BCB data
- 27+ fundamental indicators
- AI integration for analysis
In their own words
API de Dados
Indicadores fundamentalistas, dados históricos, dividendos e muito mais para todas as ações e FIIs da B3.
Commercial cues
Model
usage_based
Free tier
Yes
Trial
No
Grátis
27+ indicadores fundamentalistas · 350+ ações e 400+ FIIs · Integração com Claude, ChatGPT e Cursor
Pro
PopularTodos os endpoints liberados · 40 anos de preços ajustados por splits · 15+ anos de fundamentos trimestrais
Pricing Strategy
Employs a freemium API model, providing a free tier for initial exploration and a paid tier for comprehensive market access and higher usage limits.
- • Offers a free tier for prototyping and lead generation, lowering the barrier to entry for new users.
- • Provides generous daily request limits on the free tier, encouraging extensive testing and integration.
- • Discounts the Pro tier for annual commitments, incentivizing long-term user retention and commitment.
Operator context
Founded
Mar 2026
HQ
Brazil
Payments
Stripe
Tech stack
Social / footprint
Builder Strategy
- Strategy Type
- Api First
- Stage
- Bootstrapped Lean
- Effort
- Solo Buildable
Targets Brazilian developers and analysts with an official data API, leveraging AI integration as a key differentiator.
Unfair Advantages
-
Regulation Compliance Official data from B3, CVM, BCB ensures accuracy and trust
-
Exclusive Distribution AI integration acts as a unique distribution and value-add wedge
Builder Lesson
Leverage official data sources as a moat; integrate emerging tech like AI to create a unique value proposition.
Full Reasoning
Wins by owning the source of truth for official, hard-to-replicate Brazilian financial data, delivered via a developer-first API. This creates a clear wedge against fragmented competitors and establishes a strong data moat. The AI integration is an asymmetric bet, offering a novel analysis layer that legacy incumbents can't easily match. Builders should focus on owning critical data sources or unique technological integrations to build defensible moats, rather than just aggregating existing information.
About Bolsai Expand
Bolsai provides a robust API for accessing official Brazilian financial data, catering specifically to developers, analysts, and fund managers. It solves the critical problem of fragmented and unreliable data sources by offering a unified, direct connection to authoritative information from B3, CVM, and BCB.
This commitment to official data ensures accuracy and builds trust, a significant advantage in the often opaque world of financial markets. Beyond raw data, Bolsai integrates AI for natural language analysis, allowing users to extract deeper insights and automate complex research tasks.
This blend of authoritative data and intelligent analysis positions Bolsai as an essential tool for anyone building financial applications or performing in-depth market analysis in Brazil.