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Fiveable for AP Students
io.github.thinkfiveable/fiveable-ap-students in the official MCP registry.
Endpoint https://fiveable.me/api/mcp. Source: github.com/thinkfiveable/fiveable-mcp.
The registry describes it as: AP study content, practice, FRQ feedback, progress, plans, and student tools for AI apps.
We read its 38 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
list_subjects get_subject_outline get_study_guide get_unit_overview list_key_terms get_key_term search_content get_content_sections list_frqs get_frq get_practice_questions calculate_ap_score check_practice_answer get_my_study_progress score_external_frq_response start_diagnostic submit_diagnostic_answer get_diagnostic_results get_my_frq_progress get_frq_attempt_history score_frq_response get_scoring_result submit_practice_answer get_my_access get_my_practice_history list_cheatsheets get_cheatsheet report_content_issue list_my_study_plans get_study_plan create_study_plan update_study_plan_tasks get_exam_options list_my_exam_attempts get_exam_results list_my_assignments get_assignment_summary open_guided_practice
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[](https://lazaretto.dev/mcp-registry/io-github-thinkfiveable-fiveable-ap-students)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.