megaeth_getBlockByNumber
AI agents call megaeth_getBlockByNumber to retrieve information from Chain Debugger MCP Server 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 immutable historical blockchain data (a block by its number) with no side effects. It is analogous to standard read-only RPC calls like eth_getBlockByNumber. Even in the context of a debugger/monitoring server, this operation does not modify state, execute arbitrary code, or pose financial risk.
From the tool's definition Tool name 'megaeth_getBlockByNumber' indicates retrieval of blockchain block data by block number. The name pattern matches standard EVM RPC read operations (getBlock*). No modification, deletion, or execution of external code is implied.
Attacks that exploit this kind of access
megaeth_getBlockByNumber. It is categorised as a Read tool in the Chain Debugger MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Chain Debugger MCP Server MCP server in PolicyLayer and add a rule for megaeth_getBlockByNumber: 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 Chain Debugger MCP Server. Nothing to install.
megaeth_getBlockByNumber 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 megaeth_getBlockByNumber 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 megaeth_getBlockByNumber. 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.
megaeth_getBlockByNumber is provided by the Chain Debugger MCP Server MCP server (optimusopus/chain-debugger-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.
Teams ship this data inside their own products. See what a licence covers →