Check your AI visibility inside ChatGPT and Claude

The Proofsource app brings your AI visibility into ChatGPT and Claude. Add it once, sign in with your email, and ask in plain words how often AI answers mention your brand, who they recommend instead and which sources they cite. Answers come from results measured on 10 AI engines such as ChatGPT, Perplexity, Gemini and Copilot, with a visibility card you can open in full.

The Allow page says what the app may do and which workspace it reads.

ChatGPT and Claude app, in short

The facts, ready to quote.

Where
ChatGPT, Claude on the web and desktop, and Claude Code
Sign-in
Email code or Google, then one click on Allow; no API key needed
In the reply
A visibility card with your mention rate by engine and the competitors named most
Before sign-in
A worked example report can be shown without an account
Control
Every connection is listed in Settings, then AI agents, with a Revoke button
Privacy
Proofsource receives a tool call's inputs, never the rest of your chat

What is a ChatGPT app for AI visibility?

ChatGPT and Claude can both connect to outside services. In ChatGPT these are apps, in Claude they are connectors. Once connected, the assistant can call the service while it answers you, and some services can draw a small interactive card in the reply.

A ChatGPT app for AI visibility lets you ask about your brand's presence in AI answers from inside the assistant itself. Instead of logging in to a dashboard, you ask "Is my brand mentioned when people ask ChatGPT for the best tool in my category?" and the assistant answers from data Proofsource measured across the engines.

Proofsource builds this on its MCP server with a standard OAuth sign-in. You approve the connection on a Proofsource page that shows what the app may do, pick the workspace it can read, and can revoke it at any time from Settings.

How it works

The Proofsource app for ChatGPT and Claude: sign in with your email and ask how AI answers treat your brand, with a visibility card in the reply.

  1. Add Proofsource

    In ChatGPT find it in the apps directory, or add it as a custom connector with mcp.proofsource.co/mcp. In Claude, open Customize, then Connectors.

  2. Sign in with your email

    A Proofsource window opens. Sign in with an email code or Google. Already signed in? One click.

  3. Approve the connection

    The Allow page lists what the app may read and change and lets you pick the workspace it can read.

  4. Ask about your brand

    In ChatGPT type @ and pick Proofsource, or just ask. The assistant calls Proofsource and replies with a visibility card.

See it in the product

Screens from the Proofsource app, drawn with sample data for an example brand.

A question in ChatGPT answered from measured data, with the card in the reply.

Every capability, live today

6 shipped capabilities behind ChatGPT and Claude app, each in the product now.

ChatGPT and Claude app listings

Proofsource is packaged as an app for ChatGPT and a connector for Claude, so you can add it from the assistant itself, or add it as a custom connector.

Visibility card in chat

Opens the Proofsource visibility card inside ChatGPT or Claude, with your mention rate by engine and the competitors named most.

Connect page and connected apps

Approve or deny each ChatGPT or Claude connection on a Proofsource page, then see and remove connections in Settings.

Sign in from the connect page

Sign in with an email code right from the connect page, so a new or signed-out user can finish connecting in one pass.

Standard OAuth sign-in

ChatGPT and Claude connect through standard OAuth with PKCE, so no API key is copied or pasted.

Signed-in access for assistants

The MCP server accepts the OAuth tokens ChatGPT and Claude receive, scoped to the workspace you picked.

Who it is for

Founder

A quick check between meetings

Ask ChatGPT whether your brand showed up in AI answers this week, and see the card without opening another tab.

Marketing team

Everyone asks, nobody needs training

Teammates who already live in Claude can ask about competitors and sources in their own words.

Agency account lead

Answers during client calls

Ask which competitor is winning a client's questions and share the report link the assistant returns.

New evaluator

See an example before signing up

Ask for an example and the app shows a worked report, then sign in with a work email to scan your own brand.

Why it matters

No new tool to learn

The assistant you already use becomes the way you read your AI visibility.

No keys to manage

Sign in with your email; ChatGPT and Claude handle the token.

Measured, not guessed

Replies come from answers Proofsource collected on each engine, with sample sizes.

You stay in control

Pick the workspace, see every connection and revoke any of them from Settings.

ChatGPTPerplexityClaudeGoogle AI OverviewsGoogle AI ModeGeminiMicrosoft CopilotGrokDeepSeekMeta AI

ChatGPT and Claude app: Proofsource and other tools

A growing number of AI visibility and SEO tools can be used from inside ChatGPT or Claude. This is what each one lists on its own pages.

From each company's own public pages, read Nov 2, 2026. “Not listed” means we did not find it on their public pages; it may exist. Corrections: hello@proofsource.co.
CapabilityProofsourceProfoundPeec AIOtterly.AISemrush
Use it from ChatGPTYesApp for ChatGPT with email sign-in.YesMCP server gives ChatGPT access to Profound dataSourceYesListed in the ChatGPT Plugins directory via MCPSourceNot listedYesOfficial MCP works with ChatGPTSource
Use it from ClaudeYesClaude connector with email sign-in.YesOfficial Claude connector, no API keySourceYesMCP server works with ClaudeSourceYesMCP server with OAuthSourceYesWorks with Claude and Claude CodeSource
Visibility card drawn in the replyYesAn interactive card by engine, with Open in Proofsource.Not listedNot listedNot listedNot listed
Hosted MCP serverYesMCP server that accepts ChatGPT and Claude tokens, scoped to a workspaceYesGives ChatGPT, Copilot and coding assistants access to Profound dataSourceYesWorks with Claude, Cursor, VS Code, Windsurf, n8n; included on paid plans; bulk editsSourceYesBrand reports, prompts, citations, recommendations, audit; OAuthSourceYesOfficial Semrush MCP: Claude, Claude Code, Cursor, VS Code, ChatGPT; OAuth 2.1; uses API unitsSource
Standard sign-in, no key to pasteYesStandard OAuth with PKCE, so no API key is copiedYesOfficial Claude connector, no API key; build agents from ClaudeSourceNot listedNot listedNot listed

Where each of them shines

Profound

An official Claude connector and an MCP server that also reaches Copilot and coding assistants. Compare in full

Peec AI

A listing in the ChatGPT plugin directory and an MCP server that works across many clients. Compare in full

Otterly.AI

An OAuth MCP server that brings reports, prompts, citations, recommendations and audits into chat. Compare in full

Semrush

An official MCP server that works with Claude, Claude Code, Cursor, VS Code and ChatGPT. Compare in full

Questions about ChatGPT and Claude app

Is there a Proofsource app for ChatGPT?

Yes. Add it in ChatGPT from the apps directory, or as a custom connector with https://mcp.proofsource.co/mcp, sign in with your email, then type @ and pick Proofsource to ask about your brand.

Is there a Proofsource connector for Claude?

Yes. In Claude open Customize, then Connectors, and add https://mcp.proofsource.co/mcp. A connector added on claude.ai also works in the Claude desktop app.

Do I need an API key?

No. ChatGPT and Claude connect with a sign-in: an email code or Google, then Allow. API keys are for other MCP clients and your own code.

Which engines does the app report on?

Up to 10 AI engines depending on your plan: ChatGPT, Perplexity, Claude, Google AI Overviews, Google AI Mode, Gemini, Microsoft Copilot, Grok, DeepSeek and Meta AI. The assistant you chat in is your window onto the data; the numbers come from answers Proofsource measured.

Does Proofsource see my conversations?

No. When the assistant calls a Proofsource tool, Proofsource receives only that call's inputs, such as a brand or a question. The rest of the conversation stays with the assistant's maker.

Can I try it without an account?

Yes. Before you sign in, the app can show a worked example report. A new account with a work email can add a brand and start a scan from inside the chat.

What if I belong to more than one workspace?

You pick one on the Allow page, and the connection reads that workspace only. Connect again to switch.

How do I remove access?

In Proofsource, open Settings, then AI agents, and click Revoke next to the app. Removing Proofsource in ChatGPT or Claude also stops it on their side.

Try it on your own brand.

Proofsource is live: scan your brand and see ChatGPT and Claude app at work with your own answers, competitors and sources.

100 answers. 25 Prompts/Question. Top AI engines. Free.ChatGPTPerplexityClaudeGoogle AI OverviewsGoogle AI ModeGeminiMicrosoft CopilotGrokDeepSeekMeta AI