list_markets

List all tradeable perpetual markets on Lighter.

SERVERLighter MCP SOURCE0xdegenmo/lighter-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/0xdegenmo-lighter-mcp/list-markets.md

WHAT IT DOES

What list_markets does on Lighter MCP

AI agents call list_markets to retrieve information from Lighter 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 list_markets is rated Low

This tool queries and returns market data without creating, modifying, deleting, or executing any transactions. It is purely informational and read-only, presenting no financial risk on its own.

From the tool's definition Tool name is 'list_markets' and description states 'List all tradeable perpetual markets on Lighter' — a simple retrieval operation with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_markets safely

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

list_markets Allowed

list_markets 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": {
    "list_markets": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Lighter MCP, apply this rule, and every list_markets call is checked against it from then on.

FAQ

Questions about list_markets

What does the list_markets tool do? +

List all tradeable perpetual markets on Lighter. It is categorised as a Read tool in the Lighter MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_markets? +

Register the Lighter MCP server in PolicyLayer and add a rule for list_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 Lighter MCP. Nothing to install.

What risk level is list_markets? +

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

Can I rate-limit list_markets? +

Yes. Add a rate_limit block to the list_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.

How do I block list_markets completely? +

Set action: deny in the PolicyLayer policy for list_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.

What MCP server provides list_markets? +

list_markets is provided by the Lighter MCP server (0xdegenmo/lighter-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Lighter, and thousands of servers like it.

This server

All 20 Lighter tools →

Across the catalogue

aiva_list_affiliates on AIVA MCP Server →list_agents on 0rca Dojo MCP Server → The MCP Attack Database →

Guides

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