Search for prediction markets by keyword. Searches market questions, descriptions, and events. This searches through events for comprehensive coverage.
AI agents call search_markets 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 performs a read-only query operation that retrieves market data based on search criteria. It has no side effects—it does not modify markets, execute transactions, move money, or trigger external operations. While the server context involves financial markets (Polymarket), this specific tool only accesses and returns market information.
From the tool's definition Tool name 'search_markets' and description explicitly indicate it 'Search[es] for prediction markets by keyword' and 'searches through events for comprehensive coverage.' No creation, modification, deletion, execution, or financial transaction capability is…
Attacks that exploit this kind of access
Search for prediction markets by keyword. Searches market questions, descriptions, and events. This searches through events for comprehensive coverage. 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 search_markets: 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.
search_markets 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 search_markets 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 search_markets. 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.
search_markets is provided by the Polymarket MCP Server MCP server (rafael-pina/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.
Teams ship this data inside their own products. See what a licence covers →