Get RPC endpoint monitoring results for a specific chain by its chain ID
AI agents call get_rpc_monitor_by_id to retrieve information from Chains API without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves RPC endpoint monitoring information indexed by chain ID. It performs no data modification, deletion, code execution, or financial operations. The action is a simple GET/retrieval operation with no side effects, fitting the 'Read' category for data queries. Low severity because the output is monitoring metadata with no blast radius if misused by an AI agent.
From the tool's definition Tool name 'get_rpc_monitor_by_id' and description 'Get RPC endpoint monitoring results for a specific chain by its chain ID' indicate a read-only query operation that retrieves monitoring data without modifying or executing state changes.
Attacks that exploit this kind of access
Get RPC endpoint monitoring results for a specific chain by its chain ID. It is categorised as a Read tool in the Chains API MCP Server, which means it retrieves data without modifying state.
Register the Chains API MCP server in PolicyLayer and add a rule for get_rpc_monitor_by_id: 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 Chains API. Nothing to install.
get_rpc_monitor_by_id 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_rpc_monitor_by_id 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_rpc_monitor_by_id. 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_rpc_monitor_by_id is provided by the Chains API MCP server (johnaverse/chains-api). 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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