Get a list of all supported networks and their configurations. For more detailed information about networks, use the getAllNetworks and getNetwork tools.
AI agents call getSupportedNetworks to retrieve information from MCP Ethers Wallet without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward read-only query tool that retrieves static configuration data about blockchain networks. It performs no mutations, executions, financial operations, or destructive actions. The low severity reflects minimal blast radius if misused by an AI agent—an attacker gains only informational content about available networks, which is typically public data.
From the tool's definition Tool description states 'Get a list of all supported networks and their configurations' — a retrieval operation with no side effects. It queries and returns network metadata.
Documented attack patterns abuse exactly the kind of access getSupportedNetworks gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Ethers Wallet, and nothing reaches the server without passing your rules. This is the rule we recommend for getSupportedNetworks:
{
"version": "1",
"default": "deny",
"tools": {
"getSupportedNetworks": {}
}
}getSupportedNetworks is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get a list of all supported networks and their configurations. For more detailed information about networks, use the getAllNetworks and getNetwork tools. It is categorised as a Read tool in the MCP Ethers Wallet MCP Server, which means it retrieves data without modifying state.
Register the MCP Ethers Wallet MCP server in PolicyLayer and add a rule for getSupportedNetworks: 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 MCP Ethers Wallet. Nothing to install.
getSupportedNetworks 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 getSupportedNetworks 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 getSupportedNetworks. 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.
getSupportedNetworks is provided by the MCP Ethers Wallet MCP server (crazyrabbitltc/mcp-ethers-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP Ethers Wallet, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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69 MCP Ethers Wallet tools catalogued and risk-classified — across an index of 43,000+ MCP servers.