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com.mart402/extract
com.mart402/extract in the official MCP registry.
Endpoint https://mart402.com/mcp.
The registry describes it as: Web extraction, OCR (Japanese-strong), invoice and company data for AI agents. x402, no API key.
We read its 35 tools on 2026-10-22. Nothing in them matched our tool-poisoning rules. It also sets server instructions, text a client puts in front of the model on connect; those were read too.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.
Tools it advertises
get_catalog quote_parse get_receipt search_x402_services get_sample portrait_precheck operator_history extract_url parse_document ocr_image verify_invoice enrich_company structured_extract jp_company_profile document_pipeline pdf_merge pdf_pages pdf_info meal_vision style_profile style_report report_pack portrait_analysis jp_payroll_net jp_bonus_net jp_social_insurance jp_dependent_threshold jp_consumption_tax jp_business_days jp_overtime_wage jp_retirement_tax jp_mortgage jp_payslip_audit jp_crypto_tax jp_payroll_suite
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[](https://lazaretto.dev/mcp-registry/com-mart402-extract)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.