Get the balance of a specific ERC1155 token ID owned by an address.
AI agents call get_erc1155_balance to retrieve information from SEI MCP Server V2 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves the current balance state of an ERC1155 token for a given address and token ID. It is a read-only query with no side effects—it does not execute transactions, modify blockchain state, transfer funds, delete data, or trigger external operations. Even if misused by an AI agent, it can only retrieve information already publicly available on-chain, presenting minimal risk.
From the tool's definition Tool name 'get_erc1155_balance' and description 'Get the balance of a specific ERC1155 token ID owned by an address' indicates a query operation that retrieves data without modification or execution of external operations.
Attacks that exploit this kind of access
Get the balance of a specific ERC1155 token ID owned by an address. It is categorised as a Read tool in the SEI MCP Server V2 MCP Server, which means it retrieves data without modifying state.
Register the SEI MCP Server V2 MCP server in PolicyLayer and add a rule for get_erc1155_balance: 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.
get_erc1155_balance 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 get_erc1155_balance 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 get_erc1155_balance. 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.
get_erc1155_balance 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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