How to Connect the third i MCP to ChatGPT, Claude, Gemini & more
Connect third i to your favourite AI assistant using MCP — no API key and no ad-platform passwords shared with the AI provider. Step-by-step setup for ChatGPT, Claude, Gemini, Grok, and Perplexity in about two minutes.
Works with your favourite AI
The short answer
third i now speaks Model Context Protocol (MCP), so your AI assistant can talk to your marketing data — securely, instantly, and without CSV exports. Add the third i MCP endpoint as a custom connector, sign in, and start asking. No API key. No credentials shared with the AI provider. Setup takes about two minutes.
https://api.thirdi.ai/api/mcp/streamWhat is the third i MCP?
The third i MCP is a secure connector built on the Model Context Protocol — an open standard that lets AI assistants talk to external tools and data. Once connected, your assistant reads your marketing performance from third i across Meta, Google, TikTok, Google Analytics, and every other source you've linked.
Instead of exporting CSVs and pasting numbers into a chatbot, you ask what changed, where money is leaking, and what to fix next — and it answers using your real campaign context.
How to connect
Setup takes about two minutes. The flow is the same across every MCP-compatible app.
Open your AI app
In ChatGPT, Claude, Gemini, Grok, or Perplexity, open Settings and find the Connectors (or Integrations) section.
Add a custom MCP connector
Choose the option to add a new MCP server or custom connector.
Paste the third i MCP link
Enter the third i endpoint into the connector's URL field.
https://api.thirdi.ai/api/mcp/streamSign in and start asking
Authenticate with your third i account. No API key needed. No credentials shared with any AI provider.
What can you ask?
Point your assistant at your data and ask the questions you'd normally dig through dashboards to answer.
“Why did ROAS drop yesterday?”
“Which campaigns should I pause?”
“Summarise this week's Meta, Google and TikTok performance.”
“What should I change before increasing spend?”
Connecting from specific apps
Claude
Open Settings → Connectors, choose Add custom connector, paste the third i URL, and authenticate. The third i tools then appear in the connectors menu inside any chat.
ChatGPT
On a plan that supports connectors, open Settings → Connectors (enable developer/MCP options if required), add a custom MCP server, paste the third i URL, and sign in.
Gemini, Grok & Perplexity
Any client that supports a custom MCP server works the same way — find the connectors setting, add a new MCP server, and paste the third i link. Check developer/beta settings if you don't see the option.
You stay in control
Your AI assistant reaches your data through third i's MCP layer, authenticated with your third i account — not your ad-platform passwords. Connecting an assistant never exposes your Meta, Google, or TikTok login to the AI provider, and you can remove the connector at any time to revoke access.
Troubleshooting
The connector won't authenticate
Make sure you're signed in to the correct third i account and that your workspace has at least one connected source.
No option to add a custom connector
Your AI app or plan may not expose MCP connectors yet — look for a developer, beta, or advanced setting, or use a client that supports custom MCP servers.
The assistant returns no data
Newly connected ad accounts can take a few hours to finish syncing before results are available.
Frequently asked questions
Do I need an API key to connect third i to my AI assistant?
No. You add the third i MCP endpoint as a custom connector and sign in with your third i account. No API key is required.
Which AI assistants can connect to third i?
ChatGPT, Claude, Gemini, Grok, and Perplexity are supported, along with any other MCP-compatible client that lets you add a custom MCP server.
Does connecting an AI assistant share my ad-platform passwords?
No. Your assistant reaches your data through third i's MCP layer, authenticated with your third i account. Your Meta, Google, and TikTok passwords are never shared with the AI provider.
Which data can the AI assistant access?
It can read the marketing performance data from the sources you've connected to third i — such as Meta, Google Ads, TikTok, and Google Analytics — so answers reflect your real campaigns.
Related guides
The January '26 Drop: Speed, Grids, & Action
We moved from Matrix to Grid, integrated Cube.js for blaze-fast analysis, and upgraded the core infrastructure. Here is what shipped in January.
Maximizing Your Marketing Potential with third i: A Comprehensive Guide to Features and Insights
In today's fast-paced digital landscape, understanding how to leverage data for marketing optimization is crucial for success. In this blog post, we will explore the powerful features of the third i platform as discussed in a recent podcast episode. From integrating ad channels to analyzing campaig…
Launching Mini-Marketers!
Mini Marketers automates marketing tasks, freeing up time for creativity and strategy.