Bolsix documentation

Brazilian market infrastructure for agents and applications.

Connect to structured B3, CVM, and BCB data through a native MCP server or a predictable REST API. Use the same account and data layer in either integration.

Make your first request →Connect an agent

Agent-native

MCP server

Give Claude, Cursor, and other MCP clients direct access to 21 market-data tools.

Read the guide →Backend-ready

REST API

Build dashboards, screeners, research systems, and financial workflows with typed JSON.

Read the guide →LLM-optimized

Machine-readable

Discover the full documentation through llms.txt, llms-full.txt, and OpenAPI.

Read the guide →

Start with one command

The remote MCP server uses browser-based OAuth. It creates a free Bolsix identity on first login, so there is no local package or API key to manage.

Terminal · Claude Code

claude mcp add --transport http bolsix https://mcp.bolsix.io/

Primary-source data

Quotes, OHLCV, dividends and JCP come from B3; fundamentals, disclosures and FII informes come from CVM; macro series and PTAX come from BCB.

Designed for correct reasoning

Responses preserve provenance, distinguish JCP from dividends, expose point-in-time statement queries, and use consistent data, meta, and status envelopes.