Epsilon

Developer Tools npmStreamable HTTP v0.4.0

Non-custodial limit, stop-loss and DCA trading on Epsilon (Robinhood Chain) for AI agents

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Install

Pin version registry version 0.4.0

npm
npx -y @epsilon-exchange/mcp

npm
npx -y @epsilon-exchange/mcp@0.4.0

Streamable HTTP
https://api.epsilon.exchange/mcp

Setup by client

Pick your client — the config below is generated for this server (both local and hosted-endpoint forms). Copy respects the “Pin version” switch above.

claude_desktop_config.json

{
  "mcpServers": {
    "epsilon": {
      "command": "npx",
      "args": [
        "-y",
        "@epsilon-exchange/mcp"
      ],
      "env": {
        "EPSILON_API_KEY": "<YOUR_EPSILON_API_KEY>",
        "EPSILON_WALLET_KEY": "<YOUR_EPSILON_WALLET_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "epsilon": {
      "command": "npx",
      "args": [
        "-y",
        "@epsilon-exchange/mcp@0.4.0"
      ],
      "env": {
        "EPSILON_API_KEY": "<YOUR_EPSILON_API_KEY>",
        "EPSILON_WALLET_KEY": "<YOUR_EPSILON_WALLET_KEY>"
      }
    }
  }
}

Remote (hosted) endpoint

https://api.epsilon.exchange/mcp

Claude Desktop: Settings → Connectors → Add custom connector, paste this URL, and provide: X-API-Key.

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add --env EPSILON_API_KEY=<YOUR_EPSILON_API_KEY> --env EPSILON_WALLET_KEY=<YOUR_EPSILON_WALLET_KEY> epsilon -- npx -y @epsilon-exchange/mcp

claude mcp add --env EPSILON_API_KEY=<YOUR_EPSILON_API_KEY> --env EPSILON_WALLET_KEY=<YOUR_EPSILON_WALLET_KEY> epsilon -- npx -y @epsilon-exchange/mcp@0.4.0

terminal

claude mcp add --transport http epsilon https://api.epsilon.exchange/mcp --header "X-API-Key: Bearer <YOUR_X_API_KEY>"

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json

{
  "mcpServers": {
    "epsilon": {
      "command": "npx",
      "args": [
        "-y",
        "@epsilon-exchange/mcp"
      ],
      "env": {
        "EPSILON_API_KEY": "<YOUR_EPSILON_API_KEY>",
        "EPSILON_WALLET_KEY": "<YOUR_EPSILON_WALLET_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "epsilon": {
      "command": "npx",
      "args": [
        "-y",
        "@epsilon-exchange/mcp@0.4.0"
      ],
      "env": {
        "EPSILON_API_KEY": "<YOUR_EPSILON_API_KEY>",
        "EPSILON_WALLET_KEY": "<YOUR_EPSILON_WALLET_KEY>"
      }
    }
  }
}

.cursor/mcp.json (hosted endpoint)

{
  "mcpServers": {
    "epsilon": {
      "url": "https://api.epsilon.exchange/mcp",
      "headers": {
        "X-API-Key": "<YOUR_X_API_KEY>"
      }
    }
  }
}

Format verified against the official Cursor docs ↗.

.vscode/mcp.json

{
  "servers": {
    "epsilon": {
      "command": "npx",
      "args": [
        "-y",
        "@epsilon-exchange/mcp"
      ],
      "env": {
        "EPSILON_API_KEY": "<YOUR_EPSILON_API_KEY>",
        "EPSILON_WALLET_KEY": "<YOUR_EPSILON_WALLET_KEY>"
      }
    }
  }
}

{
  "servers": {
    "epsilon": {
      "command": "npx",
      "args": [
        "-y",
        "@epsilon-exchange/mcp@0.4.0"
      ],
      "env": {
        "EPSILON_API_KEY": "<YOUR_EPSILON_API_KEY>",
        "EPSILON_WALLET_KEY": "<YOUR_EPSILON_WALLET_KEY>"
      }
    }
  }
}

.vscode/mcp.json (hosted endpoint)

{
  "servers": {
    "epsilon": {
      "type": "http",
      "url": "https://api.epsilon.exchange/mcp",
      "headers": {
        "X-API-Key": "<YOUR_X_API_KEY>"
      }
    }
  }
}

Format verified against the official VS Code docs ↗.

mcp_config.json

{
  "mcpServers": {
    "epsilon": {
      "command": "npx",
      "args": [
        "-y",
        "@epsilon-exchange/mcp"
      ],
      "env": {
        "EPSILON_API_KEY": "<YOUR_EPSILON_API_KEY>",
        "EPSILON_WALLET_KEY": "<YOUR_EPSILON_WALLET_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "epsilon": {
      "command": "npx",
      "args": [
        "-y",
        "@epsilon-exchange/mcp@0.4.0"
      ],
      "env": {
        "EPSILON_API_KEY": "<YOUR_EPSILON_API_KEY>",
        "EPSILON_WALLET_KEY": "<YOUR_EPSILON_WALLET_KEY>"
      }
    }
  }
}

mcp_config.json (hosted endpoint)

{
  "mcpServers": {
    "epsilon": {
      "serverUrl": "https://api.epsilon.exchange/mcp",
      "headers": {
        "X-API-Key": "<YOUR_X_API_KEY>"
      }
    }
  }
}

Format verified against the official Windsurf docs ↗.

Environment variables

Defined in the server's official registry manifest. Required secrets are shown as <YOUR_…> placeholders in the configs above.

EPSILON_API_KEY required secret — Epsilon developer key (eps_…) — create one at developers.epsilon.exchange
EPSILON_WALLET_KEY secret — 0x-prefixed private key of a dedicated trading wallet; omit for read-only (quotes, order status, market stats)
EPSILON_REFERRER — Optional rev-share payout address (0x…): the referral leg of every fill routed by this server is paid there on-chain. Never changes the maker's fee — it only redirects the existing leg.
X-API-Key required secret header — Epsilon developer key (eps_…) — create one at developers.epsilon.exchange

About this server

Distributed as npm, Streamable HTTP, listed under Developer Tools. Review our MCP security guide before granting access to real data.

Frequently asked questions

How do I install Epsilon?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is Epsilon free to use?

The MCP server itself is free to install. The source is public on https://github.com/alienbase-xyz/EpsilonRobinhood. Any third-party service it calls may require its own API key and account.

Which clients support Epsilon?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.

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