Lists all configured networks and providers available to this server
AI agents call list_supported_networks to retrieve information from EVM MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a straightforward query to enumerate configured networks and their providers. It retrieves static configuration data without modifying state, executing code, or accessing sensitive blockchain data. The blast radius of misuse is negligible—an attacker could only discover which networks are supported, which is typically non-sensitive infrastructure information. This is a classic Read operation.
From the tool's definition Tool name 'list_supported_networks' and description 'Lists all configured networks and providers available to this server' indicate a pure information retrieval operation with no side effects.
Attacks that exploit this kind of access
Lists all configured networks and providers available to this server. It is categorised as a Read tool in the EVM MCP Server MCP Server, which means it retrieves data without modifying state.
Register the EVM MCP Server MCP server in PolicyLayer and add a rule for list_supported_networks: 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 EVM MCP Server. Nothing to install.
list_supported_networks 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 list_supported_networks 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 list_supported_networks. 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.
list_supported_networks is provided by the EVM MCP Server MCP server (jamesanz/evm-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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