Query comprehensive IP intelligence: reverse DNS, ASN + holder name + country inline (RIPE Stat, Phase 1), open ports, hostnames, vulnerabilities (Shodan InternetDB enriched with severity + cvss_v3 from local cve.db — Phase 2 v1.16.0 BREAKING; vulns is now list[VulnInfo] {cve_id, severity, cvss_v...
Risk signalsBulk/mass operation — affects multiple targets
Part of the ContrastAPI server.
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AI agents call ip_lookup to retrieve information from ContrastAPI 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 ip_lookup 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": {
"ip_lookup": {}
}
}See the full ContrastAPI policy for all 53 tools.
These attack patterns abuse exactly the kind of access ip_lookup 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.
Query comprehensive IP intelligence: reverse DNS, ASN + holder name + country inline (RIPE Stat, Phase 1), open ports, hostnames, vulnerabilities (Shodan InternetDB enriched with severity + cvss_v3 from local cve.db — Phase 2 v1.16.0 BREAKING; vulns is now list[VulnInfo] {cve_id, severity, cvss_v3} dicts, pre-1.16 it was list[str] of CVE IDs; unknown CVEs emit severity='UNKNOWN' / cvss_v3=null — do NOT infer benign), cloud provider, Tor exit status, and reputation. cloud_provider uses two-tier detection: published cloud CIDR ranges (AWS/GCP/Cloudflare) first, then an ASN-to-provider fallback map for anycast/public-service IPs outside published ranges (e.g. 8.8.8.8 → AS15169 → 'Google'). Reputation: FireHOL level1 blocklist on Free tier; +AbuseIPDB + Shodan on Pro (Phase 4). Use for IP investigation; for orchestrated IP+reputation use threat_report. Response is null-explicit: every field is always present (cloud_provider=null when neither tier matches; tor_exit=false when not listed or upstream fetch failed — check verdict.sources_unavailable to disambiguate fetch failure from genuine absence). Response carries next_calls (conditional) — asn_lookup when ASN is populated, ioc_lookup when reputation is FireHOL-listed or AbuseIPDB confidence>50, threat_report on Pro tier for orchestrated profile. Free: 30/hr, Pro: 500/hr. Returns {ip, ptr, geo, asn, asn_name, country, ports, hostnames, vulns, cloud_provider, tor_exit, reputation, risk_score, verdict, next_calls}.. It is categorised as a Read tool in the ContrastAPI MCP Server, which means it retrieves data without modifying state.
Register the ContrastAPI MCP server in PolicyLayer and add a rule for ip_lookup: 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 ContrastAPI. Nothing to install.
ip_lookup 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 ip_lookup 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 ip_lookup. 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.
ip_lookup is provided by the ContrastAPI MCP server (https://api.contrastcyber.com/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 53 ContrastAPI tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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