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@albertomarturelo/sii-mcp

v0.6.0

Published

MCP (stdio) server for Chile's SII (tax authority): exposes authenticated reads — RCV, F29, F22, boletas de honorarios, DTE-authorized, peticiones administrativas — as tools/resources for Claude Desktop and Claude Code. Each tool is a thin call into @albe

Vulnerabilities

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Links

Git

Maintainers

albertomartureloalbertomarturelo

Keywords

siichileimpuestossii-cltaxmcpmodel-context-protocolclaudercvf29

Readme

@albertomarturelo/sii-mcp

MCP (Model Context Protocol) server — over stdio — that exposes Chile's SII (Servicio de Impuestos Internos) to Claude Desktop and Claude Code. Authenticated reads — RCV, F22, F29, boletas de honorarios (BHE), DTE-authorized (public), peticiones administrativas, whoami — as readOnly tools, plus a destructive, confirm-gated BHE emit. A thin surface over @albertomarturelo/sii-core; all the guardrails live in the core, and no tool ever receives your password (login delegates to a browser flow — ADR-006).

⚠️ Unofficial. Not affiliated with or endorsed by the SII. Provided "as is" (MIT, no warranty). You are responsible for the SII's terms of service and Chilean law.

Install

npm i -g @albertomarturelo/sii-mcp @albertomarturelo/sii-cli
# the browser login needs Chromium once (~100–150 MB):
npx playwright install chromium

Requires Node ≥ 20. (The sii CLI is handy for the first sii auth login; the login can also run through the auth_login tool.)

Connect to Claude

Claude Desktop — add to claude_desktop_config.json and restart the app (macOS: ~/Library/Application Support/Claude/; Windows: %APPDATA%\Claude\):

{
  "mcpServers": {
    "sii": { "command": "sii-mcp" }
  }
}

Claude Code:

claude mcp add sii -- sii-mcp

Then ask in natural language — e.g. «muéstrame el RCV de compras de 2026-05» or «¿tengo peticiones administrativas detenidas?». Read tools change nothing; issuing a BHE (bte_emit) requires an explicit confirmation + amount echo.

Tools, resources, prompts, and the identity model are documented in the project README.

License

MIT © Alberto Marturelo Lorenzo.