Proofsource (co.proofsource/proofsource)

AI visibility for a brand. Read which buyer questions name the brand in ChatGPT, Perplexity, Claude and Google AI Overviews, which competitors are named instead, which sources the answers cite, open fix opportunities and whether shipped fixes changed the answers; track new buyer questions and mark fixes shipped. 14 tools. Hosted Streamable HTTP at `https://app.proofsource.co/v1/mcp`; OAuth 2.1 (email sign-in with a one-time code), `see_example` works without signing in. Free trial; paid plans from $9/month per brand. Official MCP Registry id `co.proofsource/proofsource`.

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