MCP.Market

Orcalayer MCP server

by orcalayer·io.github.orcalayer/orcalayer-mcp·v0.3.2·1 stars
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Polymarket smart-money analytics: whale leaderboard, wallet P&L, market consensus, live alerts

B82/100grade B
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Safety scan
B82/100

full report

Adoption
Growing

1 stars81 downloads/wk

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Orcalayer tools (6)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • leaderboard

    Rank the most successful Polymarket whales (smart-money traders).

  • market_consensus

    Smart-money consensus on one Polymarket market versus its current price.

  • markets

    Search Polymarket markets, optionally where smart whales are clustering.

  • wallet_overview

    Summarize one wallet's trading profile and performance.

  • wallet_positions

    List a wallet's largest open positions by current value.

  • whale_alerts

    Recent trades by smart-money whales — real-time alerts on profitable wallets (Premium).

Public scan report

scanner v0.1.10 · 2026-11-01 · same rubric, same numbers if you re-run it

no findings
  • Code scan8 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 10 days ago15/15
  • Maintainer identityregistry namespace matches repository owner7/10
Overall 82/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Orcalayer compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
82/100
higher than 63% of 48,255 servers
Tools
6
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
1
more than 65% of 28,688 servers
Downloads a week
81
more than 58% of 12,191 servers with a package

What its tools let an agent do: 4 read · 2 change

Install Orcalayer in Claude Code, Cursor or VS Code

claude mcp add orcalayer-mcp -- uvx orcalayer-mcp
Add to Cursor

What the publisher says

From the Orcalayer repository's README, as published. We do not edit it. Read it on GitHub

orcalayer-mcp

Model Context Protocol (MCP) server for the OrcaLayer API — Polymarket whale and market analytics inside Claude Desktop and other MCP clients.

It is a thin stdio wrapper over the orcalayer Python SDK and exposes six tools:

Public tools work anonymously. whalealerts needs a Premium API key (get one) supplied via the ORCALAYERAPI_KEY environment variable.

New (2026-07-22): the Premium SSE stream (/api/public/v1/live/trades)

now carries settlement_type (MINT / MERGE / COMPLEMENTARY / null)

on every event — live-derived settlement mechanics, shadow-verified

100.000% accurate on MINT/MERGE. It describes how the match settled,

not trader intent (~80% of all fills settle as MINT; null = honest

refusal, not "not a mint"). Details: the orcalayer://api-reference

resource or orcalayer.com/docs/api.

Prompts

Ready-to-use prompts for common analytics scenarios:

In Claude Desktop, pick a prompt from the prompt menu (the + / slash-command picker) — each one orchestrates the tools above for you.

Resources

Read-only context the model can pull directly — no tool call needed:

Use with Claude Desktop

Add this to your claudedesktopconfig.json (%APPDATA%\Claude\claudedesktopconfig.json on Windows, ~/Library/Application Support/Claude/claudedesktopconfig.json on macOS):

{
  "mcpServers": {
    "orcalayer": {
      "command": "uvx",
      "args": ["orcalayer-mcp"]
    }
  }
}

The public tools work as-is. For the Premium whale_alerts tool, add your API key (get one):

{
  "mcpServers": {
    "orcalayer": {
      "command": "uvx",
      "args": ["orcalayer-mcp"],
      "env": { "ORCALAYER_API_KEY": "sk_orca_your_key_here" }
    }
  }
}

Restart Claude Desktop after editing the config.

License

MIT. See LICENSE.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Orcalayer: common questions

Is Orcalayer MCP server safe?
Mostly: it is graded B (82/100). Read the Orcalayer safety report
How do I install Orcalayer?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Orcalayer need an API key?
Yes. The registry entry asks for ORCALAYER_API_KEY.
Is Orcalayer maintained?
The last commit was 13 days ago (2026-10-22). The latest release is v0.3.2.
How does Orcalayer compare with other MCP servers?
safety score 82/100 (higher than 63% of 48,255 servers); tools 6 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.