Flin Google Keyword Planner

MCP server for Google Ads Keyword Planner ideas.

This server exposes focused read-only tools so an LLM can clearly choose the right seed strategy.

Exposed MCP tools

• keyword_ideas_from_keywords
• keyword_ideas_from_url
• keyword_ideas_from_keyword_and_url
• keyword_ideas_from_site
• keyword_ideas_historical

Tool overview

1) keyword_ideas_from_keywords

Generate ideas from a keyword list (KeywordSeed).

Required:

• keywords

2) keyword_ideas_from_url

Generate ideas from a page URL (UrlSeed).

Required:

• url

3) keyword_ideas_from_keyword_and_url

Generate ideas from keyword list + URL (KeywordAndUrlSeed).

Required:

• keywords
• url

4) keyword_ideas_from_site

Generate ideas from a full site/domain (SiteSeed).

Required:

• site_url

5) keyword_ideas_historical

Generate ideas from keywords and constrain historical metrics to a year-month range.

Required:

• keywords
• start_year
• start_month
• end_year
• end_month

Historical option:

• include_average_cpc (default false)

Common optional parameters (all tools)

• customer_id
• language_id (default 1000)
• location_ids (default 2840 = US)
• network (GOOGLE_SEARCH or GOOGLE_SEARCH_AND_PARTNERS)
• include_adult_keywords (default false)
• limit (default 50, max 1000)
• page_token
• keyword_annotation (currently: KEYWORD_CONCEPT)
• aggregate_metric_types (currently: DEVICE)
• login_customer_id

Requirements

1. Python 3.10+
2. Google Ads API credentials:

• GOOGLE_ADS_DEVELOPER_TOKEN
• GOOGLE_ADS_CLIENT_ID
• GOOGLE_ADS_CLIENT_SECRET

Optional:

• GOOGLE_ADS_REFRESH_TOKEN (only needed if you want a persistent token instead of generating one in Claude)
• GOOGLE_ADS_LOGIN_CUSTOMER_ID
• GOOGLE_ADS_CUSTOMER_ID (default customer if no customer_id argument is passed)
• GOOGLE_ADS_USE_PROTO_PLUS (true by default)

Quickstart (local)

uv sync --extra dev
cp .env.example .env
# Fill .env with real credentials
uv run flin-google-keyword-planner-mcp

Claude integration

Option A: Published package (uvx)

{
  "mcpServers": {
    "flin-google-keyword-planner-mcp": {
      "command": "uvx",
      "args": ["flin-google-keyword-planner-mcp@latest"],
      "env": {
        "GOOGLE_ADS_DEVELOPER_TOKEN": "REPLACE_ME",
        "GOOGLE_ADS_CLIENT_ID": "REPLACE_ME",
        "GOOGLE_ADS_CLIENT_SECRET": "REPLACE_ME",
        "GOOGLE_ADS_CUSTOMER_ID": "1234567890",
        "GOOGLE_ADS_LOGIN_CUSTOMER_ID": "1234567890",
        "GOOGLE_ADS_USE_PROTO_PLUS": "true"
      }
    }
  }
}

Option B: Local development checkout

{
  "mcpServers": {
    "flin-google-keyword-planner-mcp-local": {
      "command": "uv",
      "args": [
        "run",
        "--directory",
        "/ABSOLUTE/PATH/TO/flin-google-keyword-planner-mcp",
        "flin-google-keyword-planner-mcp"
      ],
      "env": {
        "GOOGLE_ADS_DEVELOPER_TOKEN": "REPLACE_ME",
        "GOOGLE_ADS_CLIENT_ID": "REPLACE_ME",
        "GOOGLE_ADS_CLIENT_SECRET": "REPLACE_ME",
        "GOOGLE_ADS_CUSTOMER_ID": "1234567890",
        "GOOGLE_ADS_LOGIN_CUSTOMER_ID": "1234567890",
        "GOOGLE_ADS_USE_PROTO_PLUS": "true"
      }
    }
  }
}

Restart Claude Desktop after config changes.

Generate the refresh token in Claude

After Claude has loaded the MCP, ask it to run:

1. google_ads_start_local_oauth_flow
2. Open the returned authorization_url in your browser and approve Google Ads access.
3. After the browser shows the local completion page, run google_ads_oauth_status.
4. Run the keyword tools once token_available is true.

The default redirect URI is http://localhost:8080/. If your Google OAuth client uses a different loopback redirect URI, pass it to google_ads_start_local_oauth_flow.

If you cannot use the local callback flow, use the manual fallback:

1. Run google_ads_authorization_url.
2. Open the returned URL and approve access.
3. Copy either the full redirected URL or the code query parameter.
4. Run google_ads_exchange_authorization_code with that value.

The exchanged refresh token is stored outside Claude config in ~/.config/flin-google-keyword-planner-mcp/oauth-token.json and reused after MCP restarts. Override the storage path with FLIN_GOOGLE_ADS_TOKEN_FILE if needed.

Security

• Never commit real credentials to git.
• .env and .env.* are gitignored; only .env.example is tracked.
• Keep secrets in environment variables or secret managers.
• Rotate credentials immediately if accidentally exposed.
• CI and release workflows run secret scanning with OSS gitleaks (no GITLEAKS_LICENSE secret required).

Testing

uv sync --extra dev
python3 -m pytest
python3 -m compileall src
uv build

Release automation (GitHub + PyPI)

• CI workflow: .github/workflows/ci.yml
• Release workflow: .github/workflows/release.yml
• Tag push (v*) triggers:

1. tests + compile + build + twine check
2. publish to PyPI via Trusted Publishing (OIDC)
3. GitHub Release creation with built artifacts

PyPI Trusted Publishing (one-time)

In the PyPI project flin-google-keyword-planner-mcp, add a Trusted Publisher:

• Owner: flin-agency
• Repository: flin-google-keyword-planner-mcp
• Workflow: release.yml
• Environment: pypi

Release steps

# 1) bump version in pyproject.toml + src/flin_google_ads_mcp/__init__.py
# 2) run checks
python3 -m pytest
python3 -m compileall src
uv build

# 3) release
git add -A
git commit -m "release: vX.Y.Z"
git tag vX.Y.Z
git push origin main --tags