Full paper trade history with win rate and total P&L.
AI agents call paper_history 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 historical records of paper (simulated/hypothetical) trades and associated performance metrics. It performs no writes, deletions, or financial transactions. Even though the server context involves financial prediction markets, this specific tool only reads back previously recorded paper trading results. The 'paper' qualifier indicates these are not real transactions.
From the tool's definition Tool name and description indicate 'paper trade history' retrieval with metrics like 'win rate and total P&L' - purely informational queries of past simulated trading performance data with no side effects.
Attacks that exploit this kind of access
Full paper trade history with win rate and total P&L. 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 paper_history: 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.
paper_history 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 paper_history 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 paper_history. 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.
paper_history is provided by the Polymarket MCP Server MCP server (miles0sage/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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