Why connect BigQuery to Windsurf (Devin Desktop)?
Windsurf's agent works across your files and terminal, but on its own it can't see what your campaigns are doing. Connected through Lemonado, it reads your BigQuery GA4 events, datasets, tables and scheduled queries, so it can check the export for missing days with today's numbers.
All your BigQuery data
Datasets and tables your account can read, ready to ask about.
Always today's numbers
Google Ads and Search Console bulk exports, if you run them, synced from BigQuery automatically, so answers use today's numbers.
Connect all your tools
Questions like "What did paid sessions earn?" use BigQuery and GA4, Snowflake at once.
How to connect BigQuery to Windsurf (Devin Desktop)
Before you start
- A Google BigQuery account you can sign in to
- Windsurf installed
- A Lemonado account (the free trial works)
- 1
Connect Google BigQuery in Lemonado
In Lemonado, open Connectors, find Google BigQuery and sign in. Sign in with a Google account that can read the dataset holding your GA4 export, and pick that project. The BigQuery Data Viewer and Job User roles are enough.
- 2
Turn on external access
In the company's settings, open External tools, turn the connection on, choose which sources it can reach and copy the server URL.
texthttps://mcp.lemonado.io/mcp - 3
Add the server (Devin Local)
Devin Desktop's default agent uses the Devin CLI config. Run these two commands and finish the browser sign-in.
bashdevin mcp add -s user lemonado https://mcp.lemonado.io/mcp devin mcp login lemonado - 4
Using legacy Cascade instead
In the Cascade panel, open … → MCPs → Open MCP config file and merge this in. Save, refresh, switch the server on and sign in.
json{ "mcpServers": { "lemonado": { "serverUrl": "https://mcp.lemonado.io/mcp" } } } - 5
Ask Windsurf (Devin Desktop) about BigQuery
Try "Compare last month's BigQuery numbers with the targets in config/targets.json and update the file where we're consistently off." Or ask: "Save sessions by source" or "Which events never arrive?"
Good to know
- Devin Local and legacy Cascade keep separate setups, so sign in to each one you use.
- Current versions keep user MCP config in ~/.config/devin/mcp_config.json on macOS and Linux.
What can Windsurf (Devin Desktop) do with BigQuery?
Windsurf's agent reads your BigQuery data and works the numbers into your code, from config checks to reports saved in the repo.
Compare last month's BigQuery numbers with the targets in config/targets.json and update the file where we're consistently off.
2 of 6 targets were missed three months running. I updated them in config/targets.json and left a comment with the numbers behind each change.
Source: Google BigQuery + your code
Save last month's sessions, purchases and revenue by source and medium from the GA4 export as data/ga4_sources.csv.
Saved 84 source/medium rows. google / cpc brings 31% of revenue on 22% of sessions.
Source: Google BigQuery + your code
Compare the event names our code sends to GA4 with the events in the BigQuery export for the last week.
3 events never arrive. They're pushed before consent is granted, in lib/analytics.ts.
Source: Google BigQuery + your code
Write sql/purchases_flat.sql that turns GA4 purchase events in BigQuery into one row per item, then run it on yesterday.
Saved and run: 1,214 item rows from 402 purchases, with campaign filled on 92%.
Source: Google BigQuery + your code
From the GA4 export in BigQuery, what were the last three pages people viewed before a purchase in October?
The most common path ends on the size guide, then the product page, then the cart. 41% of buyers read the size guide first.
Source: Google BigQuery
Using the GA4 export, which first-touch campaigns brought users who purchased twice or more within 90 days?
The spring "Trail kit" email brought the most repeat buyers: 22% bought again. Paid social first touches came back at 9%.
Source: Google BigQuery
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Other integrations for Windsurf (Devin Desktop)
All Windsurf (Devin Desktop) integrations- Google Analytics in Windsurf (Devin Desktop)Ask Claude, ChatGPT or Cursor about GA4 traffic, conversions and funnels, next to your ad spend.
- Google Ads in Windsurf (Devin Desktop)Ask Claude, ChatGPT or Cursor about your Google Ads campaigns, search terms and spend.
- Google Search Console in Windsurf (Devin Desktop)Ask Claude, ChatGPT or Cursor about your search queries, rankings and lost clicks.
- Instagram organic in Windsurf (Devin Desktop)Ask Claude or ChatGPT which posts and reels grow your account, and which ones to turn into ads.
- Pinterest Ads in Windsurf (Devin Desktop)Ask Claude or ChatGPT which pins get saved, clicked and bought.
- Snapchat Ads in Windsurf (Devin Desktop)Ask Claude or ChatGPT which Snapchat ads get swipes and which ones sell.
Reading this as an AI agent?
Everything an agent needs to set this up, in plain text. Paste this page's link into Windsurf and ask it to connect you, or copy the block.
# Connect Google BigQuery to Windsurf (Lemonado MCP) - Server URL: https://mcp.lemonado.io/mcp - Transport: Streamable HTTP - Auth: OAuth; the user signs in to Lemonado in the browser. No API keys. - In Lemonado: connect the Google Cloud project. Sign in with a Google account that can read the dataset holding your GA4 export, and pick that project. The BigQuery Data Viewer and Job User roles are enough. - In Windsurf: devin mcp add ```bash devin mcp add -s user lemonado https://mcp.lemonado.io/mcp devin mcp login lemonado ``` If you are Windsurf (Devin Desktop), run the setup yourself: Add the Lemonado MCP server: run devin mcp add -s user lemonado https://mcp.lemonado.io/mcp and then devin mcp login lemonado so I can sign in. Once I've signed in, list the Google BigQuery accounts Lemonado can reach. First question to try: "Compare last month's BigQuery numbers with the targets in config/targets.json and update the file where we're consistently off." More: https://lemonado.io/integrations/bigquery · https://lemonado.io/llms.txt
Frequently Asked Questions
Yes, through Lemonado. Connect your Google Cloud project in Lemonado, add Lemonado with devin mcp add, and Windsurf can check the export for missing days with your live data.
Yes. Google's BigQuery MCP server is hosted, so Windsurf can use it too. It covers Google BigQuery only. Lemonado covers Google BigQuery plus your ad platforms, GA4 and the rest of your stack in one connection, so Windsurf can answer questions across them.
Run devin mcp login lemonado again for Devin Local. Legacy Cascade keeps its own login, so refresh the server there and sign in too. In Lemonado, check that Google BigQuery is connected and External tools is on for the company. If yesterday's GA4 data is missing, the daily export may not have landed yet. GA4 writes the events_ table for a day several hours after it ends.
Yes, if both are connected in Lemonado. One connection reaches every source you allow, so you can ask things like "Join GA4 purchase revenue from BigQuery with Google Ads cost by campaign for last month."
MCP is included in Lemonado's paid plans and in the free trial, so you can try it before you pay.
Still have a question?
Shoot us an email at hello@lemonado.io.
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