Get top holders/positions for a Polymarket market. Shows the largest positions and who holds them.
AI agents call get_market_holders to retrieve information from Polymarket MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries holder/position data from Polymarket without modifying anything. It is a read-only operation with no side effects, making it suitable for the Read category. The severity is low because misuse only exposes publicly available market data without financial or operational consequences. Confidence is high due to clear evidence from both tool name and server context.
From the tool's definition Tool is named 'get_market_holders' with description stating it 'Shows the largest positions and who holds them.' The verb 'get' and the read-only nature of retrieving holder information confirms this is a data retrieval operation.
Attacks that exploit this kind of access
Get top holders/positions for a Polymarket market. Shows the largest positions and who holds them. It is categorised as a Read tool in the Polymarket MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Polymarket MCP Server MCP server in PolicyLayer and add a rule for get_market_holders: 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 Polymarket MCP Server. Nothing to install.
get_market_holders 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_market_holders 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_market_holders. 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_market_holders is provided by the Polymarket MCP Server MCP server (yigitabi5444/yigit_polymarket_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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