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Wild Apricot MCP by usefulapi
io.usefulapi/wild-apricot in the official MCP registry.
Endpoint https://wild-apricot.usefulapi.io/mcp. Source: github.com/m190/usefulapi-mcp.
The registry describes it as: Look up members, events, registrations, invoices and payments, and add contacts or check in guests.
We read its 21 tools on 2026-10-21. 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
wildapricot_list_accounts wildapricot_get_account wildapricot_list_contacts wildapricot_get_contact wildapricot_list_contact_fields wildapricot_list_membership_levels wildapricot_list_member_groups wildapricot_list_saved_searches wildapricot_get_saved_search wildapricot_list_events wildapricot_get_event wildapricot_list_event_registration_types wildapricot_list_event_registrations wildapricot_list_invoices wildapricot_list_payments wildapricot_list_donations wildapricot_list_audit_log wildapricot_create_contact wildapricot_update_contact wildapricot_create_event_registration wildapricot_check_in_attendee
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/io-usefulapi-wild-apricot)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.