Is It AI MCP server

<!-- mcp-name: io.github.JohannsenLum/is-it-ai-mcp -->

is-it-ai-mcp

Read the file's own claim about itself, and check whether that claim still holds.

An image can carry a signed Content Credential declaring how it was made. This server reads it, checks the signature against the bytes, and hands both back to your AI assistant, which cannot see either on its own.

An MCP server that reads the C2PA Content Credential embedded in an image and reports what the file declares about its own origin, plus whether that declaration still verifies against the bytes in front of you.

📖 Documentation: mcp.johannsenlum.com/is-it-ai · install guide · tool reference

🔍 Try it without installing anything: ai.johannsenlum.com/is-it-ai runs the same checks in your browser, on your machine, with nothing uploaded.

What it does

It opens an image, looks for an embedded C2PA manifest (a Content Credential), and if one exists, reports two separate things: what the manifest claims about how the image was made, and whether the cryptographic signature over that manifest still matches the file's current bytes. It does not look at pixels and it does not guess. If there is no manifest, or the manifest exists but the signature is broken, it says so plainly instead of inventing an answer.

See docs/pass-fail.md for why "the signature verified" and "the claim is true" are two different questions, and why this server only ever answers the first one.

Install

Running the server

is-it-ai-mcp is published on PyPI. Run it with:

uvx is-it-ai-mcp

Install from source (contributors / unreleased main). Not part of the normal install path above, only needed if you want the latest unreleased code instead of the published PyPI release:

uvx --from git+https://github.com/JohannsenLum/is-it-ai-mcp is-it-ai-mcp

Or run from a local clone:

git clone https://github.com/JohannsenLum/is-it-ai-mcp
cd is-it-ai-mcp
uv sync

No account, API key, or environment variable is required. The server only reads local files you point it at.

Claude Code and Claude Desktop

Claude Code: ~/.claude.json

{
  "mcpServers": {
    "is-it-ai": {
      "command": "uvx",
      "args": ["is-it-ai-mcp"]
    }
  }
}

Claude Desktop: claudedesktopconfig.json

macOS: ~/Library/Application Support/Claude/claudedesktopconfig.json Windows: %APPDATA%\Claude\claudedesktopconfig.json

Copy this JSON in via Settings → Developer → Edit Config:

{
  "mcpServers": {
    "is-it-ai": {
      "command": "uvx",
      "args": ["is-it-ai-mcp"]
    }
  }
}

Tools

checkimageprovenance

Give it the path to one image file on disk. It returns:

Shortened. The full README is on GitHub.