Fetch top chain pairs by number of transfers from Wormholescan API.
AI agents call get_top_chain_pairs_by_num_transfers to retrieve information from Wormhole Metrics without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes cross-chain transaction metrics without modifying data or triggering external operations. It falls squarely into the Read category as it queries historical analytics data about transfer volumes between blockchain chains. The blast radius of misuse is minimal - an AI could at worst retrieve unnecessary metrics data, incurring negligible API costs.
From the tool's definition Tool description states 'Fetch top chain pairs by number of transfers' - a read-only retrieval operation querying analytics data from Wormholescan API. No modification, deletion, execution, or financial operations are performed.
Attacks that exploit this kind of access
Fetch top chain pairs by number of transfers from Wormholescan API. It is categorised as a Read tool in the Wormhole Metrics MCP Server, which means it retrieves data without modifying state.
Register the Wormhole Metrics MCP server in PolicyLayer and add a rule for get_top_chain_pairs_by_num_transfers: 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 Wormhole Metrics. Nothing to install.
get_top_chain_pairs_by_num_transfers 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_top_chain_pairs_by_num_transfers 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_top_chain_pairs_by_num_transfers. 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_top_chain_pairs_by_num_transfers is provided by the Wormhole Metrics MCP server (kukapay/wormhole-metrics-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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