markets.price_history

Fetch historical OHLC price data for a market token over a configurable time window (1h to 1m). Returns price points with a sparkline visualization showing the price trend.

SERVERPolymarket Agent Mcp SOURCEdemwick/polymarket-agent-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/demwick-polymarket-agent-mcp/markets.price-history.md

WHAT IT DOES

What markets.price_history does on Polymarket Agent Mcp

AI agents call markets.price_history to retrieve information from Polymarket Agent Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why markets.price_history is rated Low

Retrieves historical market data without modifying state or executing trades.

From the tool's definition Fetch historical OHLC price data, returns price points, sparkline visualization.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs markets.price_history safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Polymarket Agent Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For markets.price_history, this is the rule to start with:

markets.price_history Allowed

markets.price_history is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "markets.price_history": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Polymarket Agent Mcp, apply this rule, and every markets.price_history call is checked against it from then on.

FAQ

Questions about markets.price_history

What does the markets.price_history tool do? +

Fetch historical OHLC price data for a market token over a configurable time window (1h to 1m). Returns price points with a sparkline visualization showing the price trend. It is categorised as a Read tool in the Polymarket Agent Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on markets.price_history? +

Register the Polymarket Agent MCP server in PolicyLayer and add a rule for markets.price_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 Agent Mcp. Nothing to install.

What risk level is markets.price_history? +

markets.price_history is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit markets.price_history? +

Yes. Add a rate_limit block to the markets.price_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.

How do I block markets.price_history completely? +

Set action: deny in the PolicyLayer policy for markets.price_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.

What MCP server provides markets.price_history? +

markets.price_history is provided by the Polymarket Agent MCP server (demwick/polymarket-agent-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Polymarket Agent, and thousands of servers like it.

This server

All 48 Polymarket Agent tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →