Ultimate Beneficial Owner (UBO) identification via GLEIF LEI ownership register. AMLR Art. 42.
Part of the Aml server.
Free to start. No card required.
AI agents call ubo_lookup to retrieve information from Aml 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 ubo_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": {
"ubo_lookup": {}
}
}See the full Aml policy for all 12 tools.
These attack patterns abuse exactly the kind of access ubo_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.
Ultimate Beneficial Owner (UBO) identification via GLEIF LEI ownership register. AMLR Art. 42.. It is categorised as a Read tool in the Aml MCP Server, which means it retrieves data without modifying state.
Register the Aml MCP server in PolicyLayer and add a rule for ubo_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 Aml. Nothing to install.
ubo_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 ubo_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 ubo_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.
ubo_lookup is provided by the Aml MCP server (https://tooloracle.io/aml/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 12 Aml tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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