Get ERC20 transfers for a specific wallet address
AI agents call getERC20Transfers to retrieve information from Somnia MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical transaction data (ERC20 token transfers) for a given wallet. It is a query operation with no capability to modify, delete, or execute transactions. Even in a financial context, read-only access to transaction history poses minimal risk—the tool cannot move funds, initiate transfers, or alter blockchain state. Classified as Read with low severity.
From the tool's definition Tool name 'getERC20Transfers' and description 'Get ERC20 transfers for a specific wallet address' indicate data retrieval only. The verb 'Get' and context of querying transfer history from blockchain data confirms no modifications or side effects.
Attacks that exploit this kind of access
Get ERC20 transfers for a specific wallet address. It is categorised as a Read tool in the Somnia MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Somnia MCP Server MCP server in PolicyLayer and add a rule for getERC20Transfers: 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 Somnia MCP Server. Nothing to install.
getERC20Transfers 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 getERC20Transfers 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 getERC20Transfers. 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.
getERC20Transfers is provided by the Somnia MCP Server MCP server (vastavikadi/somnia-mcp). 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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