List public BMLT root servers known to the BMLT aggregator. Use the returned root_server_url values with other tools to query a specific server.
Risk signalsAdmin/system-level operation
Part of the BMLT Meetings server.
Free to start. No card required.
AI agents call list_root_servers to retrieve information from BMLT Meetings without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though list_root_servers only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"list_root_servers": {}
}
}See the full BMLT Meetings policy for all 6 tools.
These attack patterns abuse exactly the kind of access list_root_servers gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
List public BMLT root servers known to the BMLT aggregator. Use the returned root_server_url values with other tools to query a specific server.. It is categorised as a Read tool in the BMLT Meetings MCP Server, which means it retrieves data without modifying state.
Register the BMLT Meetings MCP server in PolicyLayer and add a rule for list_root_servers: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches BMLT Meetings. Nothing to install.
list_root_servers is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_root_servers rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for list_root_servers. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
list_root_servers is provided by the BMLT Meetings MCP server (https://mcp.bmlt.app/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 6 BMLT Meetings tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.