RpcLcdController-callCosmosRpc

THE RISK

High Risk

Why RpcLcdController-callCosmosRpc needs a policy

This tool executes arbitrary JSON-RPC calls against a blockchain RPC endpoint. The effects depend entirely on the rpc_method and params provided — while many RPC calls are read-only queries, some Tendermint/Cosmos RPC methods can broadcast transactions or trigger state changes.

From the tool's definition Perform a JSON-RPC call against the Sei Cosmos (Tendermint) RPC endpoint

Documented attack patterns abuse exactly the kind of access RpcLcdController-callCosmosRpc gives an agent:

POLICY

How to control RpcLcdController-callCosmosRpc

PolicyLayer is an MCP gateway — it sits between your AI agents and Seitrace Insights MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for RpcLcdController-callCosmosRpc:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "RpcLcdController-callCosmosRpc": {
      "limits": [
        {
          "counter": "rpclcdcontroller-callcosmosrpc_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RpcLcdController-callCosmosRpc stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Seitrace Insights MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

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EXPLORE

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Go deeper

High-risk tools in Seitrace Insights MCP Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
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FAQ

Questions about RpcLcdController-callCosmosRpc

What does the RpcLcdController-callCosmosRpc tool do? +

Perform a JSON-RPC call against the Sei Cosmos (Tendermint) RPC endpoint. Provide rpc_method and optional params; specify chain_id or an explicit endpoint override. It is categorised as a Execute tool in the Seitrace Insights MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on RpcLcdController-callCosmosRpc? +

Register the Seitrace Insights MCP Server MCP server in PolicyLayer and add a rule for RpcLcdController-callCosmosRpc: 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 Seitrace Insights MCP Server. Nothing to install.

What risk level is RpcLcdController-callCosmosRpc? +

RpcLcdController-callCosmosRpc is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit RpcLcdController-callCosmosRpc? +

Yes. Add a rate_limit block to the RpcLcdController-callCosmosRpc 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 RpcLcdController-callCosmosRpc completely? +

Set action: deny in the PolicyLayer policy for RpcLcdController-callCosmosRpc. 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 RpcLcdController-callCosmosRpc? +

RpcLcdController-callCosmosRpc is provided by the Seitrace Insights MCP Server MCP server (seitrace/seitrace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Seitrace Insights MCP Server tool call.

Start from Seitrace Insights MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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