MCP Fiscal Brasil

Brings Brazil's labyrinthine tax system into Claude with 14 tools covering CNPJ lookups, NFe validation, SPED file parsing, and eSocial events. Queries BrasilAPI for company registrations and Simples Nacional status, validates 44-digit NFe keys and checks SEFAZ webservice availability by state, parses EFD/ECD/ECF files offline. No API keys needed for the core stuff. Reach for this when you're building accounting software, doing supplier due diligence on Brazilian companies, or automating compliance checks across the 27 state tax authorities. Also ships as a standalone CLI and REST API if you need it outside the MCP context. The high-level tools like analyze_cnpj_compliance and compare_tax_regimes bundle multiple lookups into single agentic operations.