What is Bolsai used for?

Bolsai is a REST API that serves fundamentals, adjusted prices, dividends and macro data for Brazilian B3 stocks and real estate funds, for developers and analysts. It is a good fit for building a stock screener for the Brazilian market and replacing B3 scraping scripts with an API.

Is Bolsai open source?

No. Bolsai is proprietary (closed-source) software and can't be self-hosted. In the API Tools category, open-source options include Nango, CodeChat and ROAPI.

What are some alternatives to Bolsai?

Other SaaS products in the API Tools category include 0mcp, 1Lookup and ApexVerify.

Bolsai: features, pricing and alternatives

About Bolsai

Bolsai is a financial data API for the Brazilian market. It aims to replace scraping of B3 data with a stable REST interface, drawing on official sources from B3, the securities regulator CVM and the central bank BCB. The site is written in Portuguese.

Fundamentals are updated daily with 27 indicators such as P/L, P/VP, EV/EBITDA, ROE and margins, calculated on a trailing twelve-month basis. The API also returns daily OHLCV prices adjusted for splits and dividends, dividend and JCP history, data on real estate investment funds (FIIs), and macro series including SELIC, IPCA, CDI and USD/BRL exchange rates.

A free key can be created with a Google login and no card, and there is a playground that works without signing up, along with docs and a pricing page. It is a hosted commercial service.

Key features

27 fundamental indicators with TTM calculation
Daily OHLCV prices adjusted for splits
Dividend and JCP payment history
FII data such as P/VP and vacancy
Macro series including SELIC and IPCA
Interactive playground and API documentation

Good fit for

→Building a stock screener for the Brazilian market
→Replacing B3 scraping scripts with an API

Tags: api; finance; brazil; b3; stock-data; fii; macroeconomics

Bolsai: questions and answers

What is Bolsai used for?: Bolsai is a REST API that serves fundamentals, adjusted prices, dividends and macro data for Brazilian B3 stocks and real estate funds, for developers and analysts. It is a good fit for building a stock screener for the Brazilian market and replacing B3 scraping scripts with an API.
Is Bolsai free?: Yes. Bolsai has a free plan.
Is Bolsai open source?: No. Bolsai is proprietary (closed-source) software and can't be self-hosted. In the API Tools category, open-source options include Nango, CodeChat and ROAPI.
What are some alternatives to Bolsai?: Other SaaS products in the API Tools category include 0mcp, 1Lookup and ApexVerify.