Home / MCP registry index / ai.marketbrew/marketbrew
Market Brew
ai.marketbrew/marketbrew in the official MCP registry.
Endpoint https://brew.marketbrew.ai/mcp.
The registry describes it as: Read-only Market Brew search engine modeling and AI visibility data via OAuth.
We read its 70 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_account_management_snapshot preview_account_management_command check_ask_widget_health get_ask_chat_session get_ask_conversation list_ask_conversations get_ask_widget list_ask_widgets count_ask_widget_conversations lookup_chunk_overlay count_content_boosters get_content_booster_metrics get_content_booster list_content_booster_assets get_content_booster_asset list_content_boosters get_current_crew count_crew list_crew_websites get_crew list_customer_licenses get_customer_license get_ai_visibility_history list_deep_crawl_seeds get_deep_crawl_seed summarize_deep_crawl_seed_errors export_deep_crawl_seeds export_deep_crawl_seed_errors list_deep_crawl_seed_attempts export_deep_crawl_seed_attempts list_deep_crawl_inventory_versions get_deep_crawl_import get_deep_crawl_schedule list_knowledge_bases count_knowledge_bases get_knowledge_base get_launchpad_stats list_launchpad_keyword_gaps list_launchpad_prompt_gaps list_license_definitions get_license_definition get_license_definition_form_fields get_listen_monitor count_listen_monitors list_listen_monitors list_listen_runs list_listen_run_artifacts get_search_metrics get_search_widget_session list_search_widget_history get_search_widget_history list_tasks get_task list_task_children get_task_history list_task_history list_top_tasks get_top_task_metrics get_flight_plan_metrics get_ranking_sensor_metrics and 10 more
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/ai-marketbrew-marketbrew)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.