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Nevent MCP
io.github.nevent-dev/mcp-nevent in the official MCP registry.
Endpoint https://mcp.nevent.ai/. Source: github.com/nevent-dev/mcp-nevent.
The registry describes it as: Talk to your live-events CRM (campaigns, analytics, paid ads, segments) in Claude and ChatGPT.
We read its 59 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
nevent_analytics_query nevent_analytics_capabilities nevent_analytics_table_schema nevent_analytics_filter_values nevent_campaign_report nevent_segmentation_criteria nevent_segment_preview nevent_segment_execute nevent_dimension_values nevent_help nevent_list_tenants nevent_switch_tenant nevent_reset_tenant nevent_list_segments nevent_get_segment nevent_create_segment nevent_update_segment nevent_create_campaign nevent_schedule_campaign nevent_quote_campaign nevent_get_campaign_metrics nevent_list_campaign_recipients nevent_list_campaigns nevent_get_campaign nevent_get_campaign_insights nevent_list_templates nevent_get_template nevent_create_template nevent_update_template nevent_clone_template nevent_rename_template nevent_preview_template nevent_send_test_template nevent_get_sending_profile nevent_get_suppressions_summary nevent_paid_ads_status nevent_paid_ads_health nevent_list_paid_campaigns nevent_get_paid_campaign_insights nevent_paid_attribution nevent_list_paid_ad_groups nevent_get_paid_ad_group_insights nevent_get_paid_ad_group_comparative_stats nevent_get_paid_ad_group_targeting nevent_list_paid_ads nevent_get_paid_ad_creative nevent_list_short_urls nevent_get_short_url nevent_get_short_url_metrics nevent_get_short_url_campaign_metrics nevent_get_short_url_clicks nevent_list_short_url_user_links nevent_create_short_url nevent_update_short_url nevent_create_bulk_user_short_urls nevent_list_short_url_destinations nevent_upload_image nevent_list_images nevent_delete_image
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[](https://lazaretto.dev/mcp-registry/io-github-nevent-dev-mcp-nevent)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.