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Proofsource

by co.proofsource

AI visibility: which buyer questions name your brand in ChatGPT, Perplexity, Claude, AI Overviews.

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Server URL
https://app.proofsource.co/v1/mcp
Provider
Add in Claude

Claude opens with the name and URL filled in. You still confirm it there.

Claude Code
claude mcp add --transport http co.proofsource-proofsource https://app.proofsource.co/v1/mcp

Run in a terminal.

Claude Desktop
{
  "mcpServers": {
    "co.proofsource-proofsource": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://app.proofsource.co/v1/mcp"
      ]
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

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Questions

How do I install Proofsource?
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does Proofsource need an API key?
No required environment variable is listed on this record.
What transport does Proofsource use?
Proofsource is reached over HTTP.
When was Proofsource last checked?
Last checked 2026-10-21. AI visibility: which buyer questions name your brand in ChatGPT, Perplexity, Claude, AI Overviews.

AI visibility: which buyer questions name your brand in ChatGPT, Perplexity, Claude, AI Overviews.

Proofsource for Claude

Proofsource measures how AI assistants talk about your brand. It asks ChatGPT, Perplexity, Claude and Google AI Overviews the questions your buyers ask, and shows how often you are mentioned, which competitors are recommended instead, and which sources the answers cite.

This plugin connects Claude to your Proofsource workspace and adds two skills:

  • ai-visibility-audit: a sourced summary of your AI visibility, competitors, cited sources and recent changes.
  • fix-plan: a prioritized plan from your open gaps, plus tracking new buyer questions and shipped fixes (always asks first).

Install

/plugin marketplace add lcbasu/proofsource-plugins
/plugin install proofsource@proofsource-plugins

Then run /mcp, pick proofsource and sign in with your Proofsource account. Try: "Is my brand mentioned in ChatGPT answers?"

Connect without the plugin

The connector URL is https://app.proofsource.co/v1/mcp (OAuth 2.1; you sign in with your Proofsource email and a one-time code).

  • Claude (web or Desktop): Settings → Connectors → Add custom connector → paste the URL → Connect.

  • ChatGPT: Settings → Apps & Connectors → Advanced → turn on Developer mode → Create → paste the URL, choose OAuth.

  • Claude Code: claude mcp add --scope user --transport http proofsource https://app.proofsource.co/v1/mcp, then /mcp to sign in.

  • Cursor, VS Code, Cline, Windsurf and other MCP clients: add a remote (Streamable HTTP) server with the URL above; see llms-install.md.

Also listed in the official MCP Registry as co.proofsource/proofsource (server.json).

Full guide: https://proofsource.co/docs/chatgpt-and-claude

Tools

Read: list_brands, list_topics, get_visibility, get_competitors, get_citations, get_changes, list_fix_opportunities, get_fix_verification, get_scan_status, get_report_link, see_example (works without signing in). Write (your workspace only, by your plan and role): add_brand, create_prompt, mark_fix_shipped.

New accounts with a work email get two free scans. Personal email addresses get an account without scans.

Support: https://proofsource.co/contact · Privacy: https://proofsource.co/privacy · Terms: https://proofsource.co/terms

How do I install Proofsource?
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does Proofsource need an API key?
No required environment variable is listed on this record.
What transport does Proofsource use?
Proofsource is reached over HTTP.
When was Proofsource last checked?
Last checked 2026-10-21. AI visibility: which buyer questions name your brand in ChatGPT, Perplexity, Claude, AI Overviews.

No tool list yet. Remote servers get one after the first health check.

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