Ultimate Gemini MCP runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 23 Sep 2026.
Image generation with Google Gemini 3.1 Flash: 512px-4K, reference images, search grounding
Today is the operative word: we check Ultimate Gemini MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add ultimate-image-gen-mcp -- uvx ultimate-gemini-mcp
{
"mcpServers": {
"ultimate-image-gen-mcp": {
"args": [
"ultimate-gemini-mcp"
],
"command": "uvx"
}
}
}
[mcp_servers.ultimate-image-gen-mcp]
command = "uvx"
args = ["ultimate-gemini-mcp"]
{
"mcpServers": {
"ultimate-image-gen-mcp": {
"args": [
"ultimate-gemini-mcp"
],
"command": "uvx"
}
}
}
{
"mcpServers": {
"ultimate-image-gen-mcp": {
"args": [
"ultimate-gemini-mcp"
],
"command": "uvx"
}
}
}
This one needs environment variables set before it will start:
GEMINI_API_KEY (Google Gemini API key (free tier at https://aistudio.google.com/apikey). Also accepts GOOGLE_API_KEY.), OUTPUT_DIR (Directory where generated images are saved), DEFAULT_IMAGE_SIZE (Default resolution for generated images), DEFAULT_MODEL (Default Gemini image model), ENABLE_PROMPT_ENHANCEMENT (Automatically enhance prompts with Gemini Flash before generation), ENABLE_GOOGLE_SEARCH (Enable Google Search grounding by default (real-time data like weather, events)), REQUEST_TIMEOUT (API request timeout in seconds), MAX_BATCH_SIZE (Max parallel requests in batch mode), LOG_LEVEL (Logging level).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.