Proofsource in ChatGPT.
Ask ChatGPT how AI answers see your brand, who gets named instead and what to fix, and get the answer with proof.
Connect in four steps
- In ChatGPT, go to Plugins, select +, then Add custom MCP server.
- Name it Proofsource and paste the server URL https://app.proofsource.co/v1/mcp.
- Set Authentication to OAuth, accept the warning, and select Create as a plugin.
- Install it from your personal plugins, sign in to Proofsource and select Allow. If you belong to more than one workspace, pick one first.
- In a chat, type @ and pick Proofsource, then ask.
https://app.proofsource.co/v1/mcpSign in with your work email and a 6-digit code, or with Google. Already signed in to Proofsource in this browser? You just select Allow.
Try asking
- How visible is my brand in AI answers this week?
- Who does ChatGPT recommend instead of us?
- Which sources do AI answers cite for your topic?
- Did the fix we shipped last week work?
- Add a buyer question about your product
- Give me the share link to this month's report
By engine
ChatGPT59%
Google AI Overviews59%
Claude41%
Perplexity34%Competitors named in the same answers
Open in Proofsource
Questions
Do I need a Proofsource account to use it in ChatGPT?
To see your own brands, yes, and connecting makes one if you are new. Without signing in you can still see the Tesla example.
What does a new account get?
A work email gets 2 free scans, the same trial as signing up on the web. A personal email gets an account, and scans start once you add a work email.
Can ChatGPT change anything in Proofsource?
Only three things, and only with the write access you allow: add a brand, add a buyer question, and mark a fix shipped. It cannot delete data or change billing.
What does OpenAI see?
What each tool returns, such as brand names, visibility numbers, competitors, cited sources and answer excerpts. It never sees your sign-in code. OpenAI's own terms cover how ChatGPT handles it.
How do I disconnect?
In Proofsource, open Settings → AI agents and select Revoke next to ChatGPT. The next request from ChatGPT is refused. You can also remove Proofsource in ChatGPT's settings.
Every tool and every other way to connect · Step-by-step setup guide · Proofsource in Claude
The shortlist is being written right now.
See whether AI names your brand, who it names instead, and what to fix.
Google AI OverviewsGoogle AI Mode
