lei_kyb_check

SERVERAinumbers Mcp Apps SOURCEpostoaklabs/ainumbers-mcp-apps

Low RISK CLASS

Category Read

Parameters 11 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/postoaklabs-ainumbers-mcp-apps/lei-kyb-check.md

WHAT IT DOES

What lei_kyb_check does on Ainumbers Mcp Apps

AI agents call lei_kyb_check to retrieve information from Ainumbers Mcp Apps without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`lei`	string	Yes	20-character ISO 17442 Legal Entity Identifier to look up.

Parameters from the server's own tool schema.

RISK

Why lei_kyb_check is rated Low

lei_kyb_check performs a data retrieval and analysis operation against a public regulatory database (GLEIF). It fetches records, applies deterministic grading logic, and returns results with audit metadata. No data is created, modified, deleted, or financial transactions are triggered. The tool's sole egress target is api.gleif.org for read-only queries.

From the tool's definition Tool 'Fetches an entity's live GLEIF LEI record' and 'grades it across six GLEIF data-quality dimensions' — retrieves and queries external data (LEI records) with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs lei_kyb_check safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ainumbers Mcp Apps, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For lei_kyb_check, this is the rule to start with:

lei_kyb_check Allowed

lei_kyb_check is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "lei_kyb_check": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ainumbers Mcp Apps, apply this rule, and every lei_kyb_check call is checked against it from then on.

FAQ

Questions about lei_kyb_check

What does the lei_kyb_check tool do? +

Fetches an entity's live GLEIF LEI record (api.gleif.org -- the worker's only egress target for this tool, RULINGS-2026-07-19-EGRESS-APEX.md R1) and grades it across six GLEIF data-quality dimensions -- registration status, renewal timeliness, corroboration level, entity status, Level-2 parent disclosure, address completeness -- using the SAME deterministic grader as the tools/551 browser workbench (pasting the same record there reproduces identical grades). Returns per-dimension grades, a composite, and a receipt with source provenance (url, retrieved_at, response_digest). This is an ASSERTED FETCH, not a zkTLS proof of origin, and grades DATA QUALITY only -- never creditworthiness, sanctions status, or entity legitimacy. It is categorised as a Read tool in the Ainumbers Mcp Apps MCP Server, which means it retrieves data without modifying state.

What parameters does lei_kyb_check accept? +

lei_kyb_check accepts 1 parameter: lei. Required: lei. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on lei_kyb_check? +

Register the Ainumbers Mcp Apps MCP server in PolicyLayer and add a rule for lei_kyb_check: 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 Ainumbers Mcp Apps. Nothing to install.

What risk level is lei_kyb_check? +

lei_kyb_check is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit lei_kyb_check? +

Yes. Add a rate_limit block to the lei_kyb_check 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.

How do I block lei_kyb_check completely? +

Set action: deny in the PolicyLayer policy for lei_kyb_check. 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.

What MCP server provides lei_kyb_check? +

lei_kyb_check is provided by the Ainumbers Mcp Apps MCP server (postoaklabs/ainumbers-mcp-apps). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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