AbuseIPDB bulk blacklist — most-reported abusive IPs above a confidence threshold (the fail2ban / firewall block-feed). Tune confidenceMinimum (25-100, default 90), limit (1-10000), ipVersion (4/6), onlyCountries / exceptCountries (ISO-2). Returns each IP with country, confidence, lastReportedAt ...
AI agents call security.ip-blacklist to retrieve information from Mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
AbuseIPDB bulk blacklist is a read-only query against a known public threat intelligence feed. It retrieves and filters existing data without side effects. The tool provides information for defensive purposes (firewall configuration) but does not itself execute blocks, delete data, or modify systems. It is a reference lookup similar to a DNS query or database select operation.
From the tool's definition Tool returns a list of reported abusive IPs with metadata (country, confidence, lastReportedAt, generatedAt).
Attacks that exploit this kind of access
AbuseIPDB bulk blacklist — most-reported abusive IPs above a confidence threshold (the fail2ban / firewall block-feed). Tune confidenceMinimum (25-100, default 90), limit (1-10000), ipVersion (4/6), onlyCountries / exceptCountries (ISO-2). Returns each IP with country, confidence, lastReportedAt + the list generatedAt. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.
Register the MCP server in PolicyLayer and add a rule for security.ip-blacklist: 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 Mcp. Nothing to install.
security.ip-blacklist 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 security.ip-blacklist 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 security.ip-blacklist. 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.
security.ip-blacklist is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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