Get L2BEAT scaling data for a single chain by chain ID. Includes stage classification, category, stack, DA layer, host chain, TVS, activity, and per-chain freshness metadata.
AI agents call get_l2beat_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 is a pure read operation that queries and retrieves blockchain scaling data. It has no side effects—it does not create, modify, delete, or execute anything. The tool simply returns metadata about a blockchain chain's L2BEAT scaling characteristics. Blast radius of misuse is minimal: an attacker could learn about chain properties but cannot manipulate state or extract funds.
From the tool's definition Tool name 'get_l2beat_by_id' and description 'Get L2BEAT scaling data for a single chain' indicate data retrieval.
Attacks that exploit this kind of access
Get L2BEAT scaling data for a single chain by chain ID. Includes stage classification, category, stack, DA layer, host chain, TVS, activity, and per-chain freshness metadata. 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_l2beat_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_l2beat_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_l2beat_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_l2beat_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_l2beat_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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