GA4 MCP for Devin Desktop: Setup, Skills and First Query

angle: One exact Devin MCP config for GA4, with the native path separated from the hosted Composio path.

I query GA4 from inside Devin with the same server I run locally elsewhere. GA4 MCP for Devin Desktop gives you that: one mcpServers entry in the Devin MCP config, your property ID plus credentials in env, then plain questions answered from your own property schema.

Proof strip

Configuring Devin to launch the server

Prerequisites: numeric GA4_PROPERTY_ID (Admin, Property details, not the G- ID), plus a service-account JSON path or gcloud auth application-default login. Keep the JSON path absolute.

1. Add the server from your terminal:

devin mcp add google-analytics --command uvx --arg google-analytics-mcp

Default scope writes .devin/mcp_config.local.json. Use -s user for ~/.config/devin/mcp_config.json or -s project for shared .devin/mcp_config.json.

2. Confirm the entry carries your values:

{
  "mcpServers": {
    "google-analytics": {
      "command": "uvx",
      "args": ["google-analytics-mcp"],
      "env": {
        "GA4_PROPERTY_ID": "123456789",
        "GOOGLE_APPLICATION_CREDENTIALS": "/absolute/path/to/key.json"
      }
    }
  }
}

3. Check the connection:

devin mcp list
devin mcp get google-analytics

4. Verify by asking: "List my GA4 properties." You have succeeded when list_properties returns rows with no setup error. Do not mix the Composio hosted serverUrl entry into this file; pick native stdio or hosted, not both under one name.

Skills worth loading first

| Skill slug | What you use it for in Devin |

|---|---|

| traffic-diagnosis | You saw sessions move and want the ordered checks |

| channel-acquisition | You want sessions split by source, medium, channel group |

| common-metric-names | Your field name failed and you want the working GA4 name |

| date-ranges | You compare two periods and want the two-query pattern |

| filter-structures | Your dimension filter returned an invalid-filter error |

Full set of 15 at https://ga4mcp.com/skills/, loaded with search_skills("<slug>").

Running your first query

Ask: "What were my top channels last week?"

Your agent should call:

get_ga4_data(
  dimensions=["sessionDefaultChannelGroup"],
  metrics=["sessions"],
  date_range_start="7daysAgo",
  date_range_end="yesterday",
  intent="which channels drove sessions last week"
)

Read the period figure from totals. GA4 computes that block; hand sums drift and I stopped doing them.

Fixing the three errors you will hit

1. Server missing after add. Symptom: devin mcp list omits google-analytics. Fix: confirm which scope file you wrote (local vs user vs project), then re-run the add with the intended -s flag.

2. Setup error on first call. Symptom: missing property or credentials. Fix: confirm both env values with an absolute key path in the same scope file; for ADC expiry run gcloud auth application-default login. setup_ga4_access recovers mid-session where prompts are supported.

3. Invalid dimension, metric, or filter. Symptom: 400 naming error. Fix: run search_schema("<keyword>"), load common-metric-names plus compatible-combinations, retry. Offline guide: get_troubleshooting_guide(topic="schema").

FAQ

Does GA4 MCP for Devin Desktop use devin mcp add?

Yes. The add plus scope files above are the path, verified in Devin docs today.

Native stdio or Composio hosted: which does this page use?

Native stdio. Composio hosts a Devin bridge over serverUrl; I name it here so you can tell them apart, and I wire only the native entry above.

Does the Windsurf rename affect this page?

Windsurf retired as a name and Devin Desktop is the successor surface. I do not ship a /windsurf/ page; this page is the live path.

Why does the agent guess wrong field names?

Training predates GA4 renames (UA sunset 2023-07-01; conversions renamed to key events 2024-05-06). The ua-to-ga4 skill maps each old name.

Is usage read-only and private?

Yes. Tools read metadata and reports; they change nothing. Traffic runs from your machine to the GA4 Data API. Anonymous counts stop with DISABLE_TELEMETRY=1.

Why does the repo read 2.11.5 when the site says 2.11.4?

Main moved ahead of the site label at fetch today. I quote 2.11.4 for installs and state the gap here.

Freshness and machine links

Verified 2026-10-09 against https://ga4mcp.com/ (v2.11.4), https://ga4mcp.com/setup/, https://ga4mcp.com/skills/, Devin MCP configuration docs plus Desktop cascade page, Composio Connect page, and repo raw pyproject.toml 2.11.5.

Version gap (2026-10-09): repo pyproject.toml reads 2.11.5 [source: repo pyproject.toml, verified this run] while the live site labels v2.11.4 [source: https://ga4mcp.com/ fetch 2026-10-09]; installs on this page quote the site label.

Machine: https://ga4mcp.com/llms.txt, https://ga4mcp.com/data/tools.json, https://ga4mcp.com/data/skills.json.

Breadcrumb

Hub (/ga4-mcp-for-every-harness/) / GA4 MCP for Devin Desktop (you are here).