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CouponBrain

Extract coupon codes from promotion text. Connect with OAuth.

CouponBrain MCP

Connect Grok, Claude, Cursor, or any MCP client. The agent pulls text around a coupon or promotion, runs CouponBrain, and reports what comes back.

Documentation

Endpoint

Streamable HTTP. Grok and other MCP clients connect with OAuth on this site. One successful extract uses one credit.

/api/mcp

Grok / GrokBot prompt

Paste this as the agent instruction when you connect the MCP.

Extract the text surrounding a coupon code or promotion and run it in CouponBrain. If a coupon comes back, report it to the user. If CouponBrain returns no coupon, say so — do not invent a code. Do not ask the user for an Affensus API key. CouponBrain connects with OAuth. After the grant, call create_api_key if you need a key.

Cursor / Claude

{
  "mcpServers": {
    "couponbrain": {
      "url": "/api/mcp"
    }
  }
}

Grok

Add the public MCP URL as couponbrain. Do not add an Authorization header — that blocks OAuth. Grok opens the grant card on this site. Sign in and press Allow. After that, Grok can create an API key itself.

{
  "mcpServers": {
    "couponbrain": {
      "type": "http",
      "url": "/api/mcp"
    }
  }
}

stdio clients

If the client cannot open a remote URL, bridge it.

npx -y mcp-remote /api/mcp