verify_erc721_contract · SEI MCP Server V2 MCP

WHAT IT DOES

What verify_erc721_contract does on SEI MCP Server V2

AI agents use verify_erc721_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_erc721_contract needs a policy

This tool submits source code to a block explorer for contract verification. It creates/modifies a record on the block explorer (publishes verified source code), which is a reversible write-like action. It does not deploy contracts, move funds, or execute arbitrary code — it merely registers verification metadata.

From the tool's definition Verifies an already deployed ERC721 contract on a block explorer by submitting the source code for verification

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

verify_erc721_contract Rate-limited

verify_erc721_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_erc721_contract": {
      "limits": [
        {
          "counter": "verify_erc721_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_erc721_contract

What does the verify_erc721_contract tool do? +

Verifies an already deployed ERC721 contract on a 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_erc721_contract? +

Register the SEI MCP Server V2 MCP server in PolicyLayer and add a rule for verify_erc721_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_erc721_contract? +

verify_erc721_contract is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit verify_erc721_contract? +

Yes. Add a rate_limit block to the verify_erc721_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_erc721_contract completely? +

Set action: deny in the PolicyLayer policy for verify_erc721_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_erc721_contract? +

verify_erc721_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.