verify_erc20_contract · SEI MCP Server V2 MCP: Risk & Policy

WHAT IT DOES

What verify_erc20_contract does on SEI MCP Server V2

AI agents use verify_erc20_contract to create or update resources in SEI MCP Server V2 — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your SEI MCP Server V2 environment.

WHY IT NEEDS A POLICY

Why verify_erc20_contract needs a policy

This tool submits source code to a block explorer for contract verification. It writes/publishes data to the block explorer service (making source code public and verified), but does not deploy contracts, move funds, or perform destructive actions. It is reversible in the sense that it doesn't destroy anything, though verification itself is typically a one-way public action.

From the tool's definition Verifies an already deployed ERC20 contract on Seitrace block explorer by submitting the source code for verification

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

verify_erc20_contract Rate-limited

verify_erc20_contract stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "verify_erc20_contract": {
      "limits": [
        {
          "counter": "verify_erc20_contract_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches SEI MCP Server V2, so you can run agents against it safely.

FAQ

Questions about verify_erc20_contract

What does the verify_erc20_contract tool do? +

Verifies an already deployed ERC20 contract on Seitrace block explorer by submitting the source code for verification. It is categorised as a Write tool in the SEI MCP Server V2 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on verify_erc20_contract? +

Register the SEI MCP Server V2 MCP server in PolicyLayer and add a rule for verify_erc20_contract: 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 SEI MCP Server V2. Nothing to install.

What risk level is verify_erc20_contract? +

verify_erc20_contract is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit verify_erc20_contract? +

Yes. Add a rate_limit block to the verify_erc20_contract 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 verify_erc20_contract completely? +

Set action: deny in the PolicyLayer policy for verify_erc20_contract. 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 verify_erc20_contract? +

verify_erc20_contract is provided by the SEI MCP Server V2 MCP server (testinguser1111111/sei-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.