Google Custom Search MCP

io.github.A1-x-Tech/mcp-google-custom-searchv0.1.0Image, Video & Audio

MCP server for Google Custom Search: web and image search via a Programmable Search Engine.

The current version, v0.1.0, was published to the official MCP registry on 2026-08-30. It is distributed as mcp-google-custom-search on npm, filed under Image, Video & Audio by this index, and declares 5 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.

In-path gate · all MCP tools

Using Google Custom Search MCP in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-08-30).

Contracts can change after screening, with no version bump. The gate pins Google Custom Search MCP’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Environment variables

GOOGLE_CUSTOM_SEARCH_API_KEY

requiredsecret

Google Cloud API key with the Custom Search API enabled. Treat it as a secret.

GOOGLE_CUSTOM_SEARCH_ENGINE_ID

Default Programmable Search Engine id (cx). Tools accept a per-call engine_id override.

GOOGLE_CUSTOM_SEARCH_API_BASE

API root override.

GOOGLE_CUSTOM_SEARCH_TIMEOUT_MS

Per-request timeout in milliseconds.

GOOGLE_CUSTOM_SEARCH_MAX_RETRIES

Retries on transient errors (429, and 5xx/network — the API is idempotent GETs only).

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

Alternatives in Image, Video & Audio

ModelRunner

ai.modelrunner/mcp

Run 100+ AI models — image, video, audio, 3D — through one API with pay-per-use billing.

YouTube Trends API

ai.trendsapi/youtube

YouTube search volume and trending videos over time. Free key at trendsapi.ai

Google Slides MCP

io.github.A1-x-Tech/mcp-google-slides

MCP server for the Google Slides API: presentations, slides, text, shapes, images and tables.

Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "mcp-google-custom-search": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "mcp-google-custom-search"
      ],
      "env": {
        "GOOGLE_CUSTOM_SEARCH_API_KEY": "<your-google_custom_search_api_key>",
        "GOOGLE_CUSTOM_SEARCH_ENGINE_ID": "<google_custom_search_engine_id>",
        "GOOGLE_CUSTOM_SEARCH_API_BASE": "https://customsearch.googleapis.com",
        "GOOGLE_CUSTOM_SEARCH_TIMEOUT_MS": "30000",
        "GOOGLE_CUSTOM_SEARCH_MAX_RETRIES": "3"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "mcp-google-custom-search": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "mcp-google-custom-search"
      ],
      "env": {
        "GOOGLE_CUSTOM_SEARCH_API_KEY": "<your-google_custom_search_api_key>",
        "GOOGLE_CUSTOM_SEARCH_ENGINE_ID": "<google_custom_search_engine_id>",
        "GOOGLE_CUSTOM_SEARCH_API_BASE": "https://customsearch.googleapis.com",
        "GOOGLE_CUSTOM_SEARCH_TIMEOUT_MS": "30000",
        "GOOGLE_CUSTOM_SEARCH_MAX_RETRIES": "3"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- mcp-google-custom-search

Claude Code (claude mcp add)

claude mcp add --scope user mcp-google-custom-search -- npx -y -- mcp-google-custom-search

Gemini CLI (gemini mcp add)

gemini mcp add -s user mcp-google-custom-search npx -y -- mcp-google-custom-search

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-a1-x-tech-mcp-google-custom-search

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v0.1.0
category: Image, Video & Audio
quality: 90 / 100
operator: A1-x-Tech

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 964,685). Verify it yourself.

Links

Repository →Website →