Look up any business entity by name, CIF/NIF, EU VAT, or LEI. Auto-detects input type. Public endpoint (no API key required, 10 req/min).
Part of the ENTIA — 5 5M Verified Entities for AI Agents server.
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AI agents call entity_lookup to retrieve information from ENTIA — 5 5M Verified Entities for AI Agents 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 entity_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": {
"entity_lookup": {}
}
}See the full ENTIA — 5 5M Verified Entities for AI Agents policy for all 14 tools.
These attack patterns abuse exactly the kind of access entity_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.
Look up any business entity by name, CIF/NIF, EU VAT, or LEI. Auto-detects input type. Public endpoint (no API key required, 10 req/min).. It is categorised as a Read tool in the ENTIA — 5 5M Verified Entities for AI Agents MCP Server, which means it retrieves data without modifying state.
Register the ENTIA — 5 5M Verified Entities for AI Agents MCP server in PolicyLayer and add a rule for entity_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 ENTIA — 5 5M Verified Entities for AI Agents. Nothing to install.
entity_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 entity_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 entity_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.
entity_lookup is provided by the ENTIA — 5 5M Verified Entities for AI Agents MCP server (https://entia.systems/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 14 ENTIA — 5 5M Verified Entities for AI Agents tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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