XBOSS for Grok
kr.xdata/xboss-mcp
Korean national tax, insurance, invoice and payroll data as MCP tools. Free tier, no card needed.
client:Grok
transport:streamable-http
tools:398
Install XBOSS in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"xboss-mcp": {
"type": "http",
"url": "https://api.xdata.kr/mcp"
}
}
}Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs
What Grok can do once it is connected
- hometax__session__login
- hometax__session__user_info
- hometax__certificate__list
- hometax__certificate__apply__national_tax_payment
- hometax__certificate__apply__tax_payment_record
- hometax__certificate__apply__vat_standard
- hometax__certificate__apply__business_registration
- hometax__certificate__apply__business_suspension
- hometax__certificate__apply__financial_statement
- hometax__certificate__apply__business_closure
- hometax__certificate__apply__business_registration_reissue
- hometax__certificate__apply__income_statement
- hometax__etax__invoice__search_summary
- hometax__etax__invoice__search_list
- hometax__etax__invoice__search_statistics
- hometax__etax__invoice__search_detail
- hometax__etax__invoice__issue
- hometax__etax__invoice__modify
- hometax__tax__business_registration__search_status
- hometax__tax__business_registration__search_info
- hometax__tax__my_tax_agent__search
- hometax__tax__return_history__search_vat
- hometax__tax__payment_due__search_or_pay
- hometax__tax__electronic_notice__check_status