Look up bank details from RBI master list. # PermissionTier: READ_ONLY
AI agents call lookup_bank to retrieve information from Mcp India Stack without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves static reference data from the RBI master list without creating, modifying, or deleting any information. The READ_ONLY permission tier and lookup operation confirm it as a simple data query with minimal blast radius if misused by an AI agent.
From the tool's definition Tool name 'lookup_bank' and description 'Look up bank details from RBI master list' indicate a query/retrieval operation. PermissionTier explicitly marked as 'READ_ONLY', confirming no modifications or side effects.
Documented attack patterns abuse exactly the kind of access lookup_bank gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp India Stack, and nothing reaches the server without passing your rules. This is the rule we recommend for lookup_bank:
{
"version": "1",
"default": "deny",
"tools": {
"lookup_bank": {}
}
}lookup_bank is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Look up bank details from RBI master list. # PermissionTier: READ_ONLY. It is categorised as a Read tool in the Mcp India Stack MCP Server, which means it retrieves data without modifying state.
Register the Mcp India Stack MCP server in PolicyLayer and add a rule for lookup_bank: 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 India Stack. Nothing to install.
lookup_bank 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 lookup_bank 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 lookup_bank. 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.
lookup_bank is provided by the Mcp India Stack MCP server (rehan1020/mcp-india-stack). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mcp India Stack, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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58 Mcp India Stack tools catalogued and risk-classified — across an index of 43,000+ MCP servers.