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Airbrake MCP by usefulapi
io.usefulapi/airbrake in the official MCP registry.
Endpoint https://airbrake.usefulapi.io/mcp. Source: github.com/m190/usefulapi-mcp.
The registry describes it as: Read Airbrake projects, error groups, notices, deploys and stats; mute or unmute error groups.
We read its 13 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
airbrake_list_projects airbrake_get_project airbrake_list_groups airbrake_get_group airbrake_get_group_stats airbrake_list_notices airbrake_get_notice_status airbrake_list_deploys airbrake_get_deploy airbrake_list_activities airbrake_get_project_stats airbrake_mute_group airbrake_unmute_group
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/io-usefulapi-airbrake)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.