Connect to Gemini

Use the Ascend Gateway V5 with Google Gemini via CLI or programmatic SDK.

Option 1: Gemini CLI

Setup

Add to ~/.gemini/settings.json:

{
  "mcpServers": {
    "ascend-gateway": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://ascend-gateway-v5.ascendgtm.workers.dev/mcp",
        "--header",
        "Authorization: Bearer YOUR_TOKEN_HERE"
      ]
    }
  }
}

Test It

gemini "List my connected APIs using discover_apis"

Option 2: Gemini API / SDK (Programmatic)

Google's Gemini SDK supports MCP natively as of March 2026.

Python

from google import genai

client = genai.Client()

# Connect to Ascend Gateway MCP
mcp_tools = client.mcp.connect(
    url="https://ascend-gateway-v5.ascendgtm.workers.dev/mcp",
    headers={"Authorization": "Bearer YOUR_TOKEN_HERE"}
)

# Use in a chat session
response = client.models.generate_content(
    model="gemini-2.5-pro",
    contents="Search HubSpot for contacts created this month",
    tools=mcp_tools,
)
print(response.text)

JavaScript/TypeScript

import { GoogleGenAI } from '@google/genai';

const ai = new GoogleGenAI({ apiKey: process.env.GEMINI_API_KEY });

const mcpTools = await ai.mcp.connect({
  url: 'https://ascend-gateway-v5.ascendgtm.workers.dev/mcp',
  headers: { Authorization: `Bearer ${process.env.ASCEND_TOKEN}` },
});

const response = await ai.models.generateContent({
  model: 'gemini-2.5-pro',
  contents: 'List connected APIs',
  tools: mcpTools,
});

Platform Availability

Platform	MCP Support	Status
Gemini CLI	✅ Via mcp-remote shim	Available now
Gemini API/SDK	✅ Native MCP in Python/JS	Available now
Gemini Web (consumer)	❌ No custom MCP	Not available for non-Enterprise
Gemini Enterprise	✅ Conditional	Requires Google account team allowlist

Troubleshooting

Issue	Fix
mcp-remote not found	Run npm install -g mcp-remote
SDK connection fails	Verify token: curl -H "Authorization: Bearer TOKEN" .../health
"Model does not support tools"	Use gemini-2.5-pro or gemini-2.5-flash (tool use required)