# traders.discover

Fetch top traders from the Polymarket leaderboard ranked by PnL, volume, and ROI. Use this to find profitable traders worth copying. Returns trader address, PnL, volume, and win rate. Use auto_watch to add them to your watchlist directly.

Agent View of the PolicyLayer registry record for `traders.discover`. HTML page: https://policylayer.com/tools/demwick-polymarket-agent-mcp/traders.discover

## Facts

- Tool: `traders.discover`
- Server: Polymarket Agent Mcp (`demwick/polymarket-agent-mcp`) — https://policylayer.com/tools/demwick-polymarket-agent-mcp.md
- Homepage: https://github.com/demwick/polymarket-agent-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "traders.discover",
    "arguments": {}
  }
}
```

## Why traders.discover is rated Low

The primary action is fetching/reading leaderboard data. However, the 'auto_watch' parameter can add traders to a watchlist (a Write side effect). Since the core function is data retrieval and the write side effect is minor/reversible, Read is appropriate, but severity is elevated slightly due to the potential watchlist modification.

From the tool's own definition: "Fetch top traders from the Polymarket leaderboard ranked by PnL, volume, and ROI... Returns trader address, PnL, volume, and win rate."

## Use case

AI agents call traders.discover 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.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Polymarket Agent Mcp:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "traders.discover": {}
  }
}
```

## Other tools on Polymarket Agent Mcp (47)

- `orders.cancel` — Destructive — https://policylayer.com/tools/demwick-polymarket-agent-mcp/orders.cancel.md
- `watchlist.rebalance` — Destructive — https://policylayer.com/tools/demwick-polymarket-agent-mcp/watchlist.rebalance.md
- `monitor.start` — Execute — https://policylayer.com/tools/demwick-polymarket-agent-mcp/monitor.start.md
- `monitor.stop` — Execute — https://policylayer.com/tools/demwick-polymarket-agent-mcp/monitor.stop.md
- `traders.backtest` — Execute — https://policylayer.com/tools/demwick-polymarket-agent-mcp/traders.backtest.md
- `config.go_live` — Financial — https://policylayer.com/tools/demwick-polymarket-agent-mcp/config.go-live.md
- `orders.batch` — Financial — https://policylayer.com/tools/demwick-polymarket-agent-mcp/orders.batch.md
- `orders.buy` — Financial — https://policylayer.com/tools/demwick-polymarket-agent-mcp/orders.buy.md
- `orders.sell` — Financial — https://policylayer.com/tools/demwick-polymarket-agent-mcp/orders.sell.md
- `positions.check_exits` — Financial — https://policylayer.com/tools/demwick-polymarket-agent-mcp/positions.check-exits.md
- `positions.close` — Financial — https://policylayer.com/tools/demwick-polymarket-agent-mcp/positions.close.md
- `wta.bid` — Financial — https://policylayer.com/tools/demwick-polymarket-agent-mcp/wta.bid.md
- `agent.log_cycle` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/agent.log-cycle.md
- `dashboard.get` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/dashboard.get.md
- `flow.discover` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/flow.discover.md
- `markets.analyze` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.analyze.md
- `markets.arbitrage` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.arbitrage.md
- `markets.check` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.check.md
- `markets.compare` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.compare.md
- `markets.discover` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.discover.md
- `markets.events` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.events.md
- `markets.featured` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.featured.md
- `markets.holders` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.holders.md
- `markets.price` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.price.md
- `markets.price_history` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.price-history.md
- `markets.related` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.related.md
- `markets.search` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.search.md
- `markets.trending` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.trending.md
- `markets.watch_price` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/markets.watch-price.md
- `orders.list` — Read — https://policylayer.com/tools/demwick-polymarket-agent-mcp/orders.list.md
- …and 17 more: https://policylayer.com/tools/demwick-polymarket-agent-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=demwick-polymarket-agent-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/demwick-polymarket-agent-mcp