Layer

Connect Remote server

claude mcp add --transport http layer https://uselayer.sh/mcp --header "Authorization: Bearer <YOUR_API_KEY>"

{
  "mcpServers": {
    "layer": {
      "url": "https://uselayer.sh/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}

{
  "servers": {
    "layer": {
      "type": "http",
      "url": "https://uselayer.sh/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://uselayer.sh/mcp

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools 3 found in our last check

• find_matches

  List prediction markets that are the same bet on Kalshi and another venue, earliest event day first, with both venues' live prices and the best trade between them. Filter with q (words in the title, such as nba or btc), series, category, and a date range. total says how many the…

• lookup_match

  Find the same bet on another venue for one market you know: its twin, how confident the match is, the rule differences, and both venues' live prices. Once the market has settled, says how both venues settled it.

• check_profit

  Is buying YES on Kalshi and NO on a Polymarket (or the reverse) profitable after both venues' fees? Send the contracts and each side's price in dollars (0 to 1); Layer applies each venue's fee schedule. Send polymarket (polymarket.com) or polymarket_us, not both. With kalshi.mar…

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