MCP serverOfficial registry

Orphograph

Anchor a file's SHA-256 fingerprint to Bitcoin. The file never leaves the device.

by io.github.Orphographv0.1.1GitHub Website

Power your agent

Add this server

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

Local command

mcpb https://github.com/Orphograph/Orphograph/releases/download/mcp-v0.1.1/orphograph-mcp-0.1.1.mcpb

Credentials from the publisher

ORPHO_API_KEY — Optional API key issued from https://orphograph.com/account.html. Without it, anchors are subject to the free-tier rate limit (three anchors per twenty-four hours per IP). With it, the customer's subscription or Pack credits apply.
ORPHO_BASE_URL — Base URL for the Orphograph API. Defaults to https://orphograph.com. Override only for testing or self-hosted instances.

Provider

Claude Code

ORPHO_API_KEY=<secret> ORPHO_BASE_URL=<value> claude mcp add io.github.orphograph-orphograph -- mcpb https://github.com/Orphograph/Orphograph/releases/download/mcp-v0.1.1/orphograph-mcp-0.1.1.mcpb

Run in a terminal.

Claude Desktop

{
  "mcpServers": {
    "io.github.orphograph-orphograph": {
      "command": "mcpb",
      "args": [
        "https://github.com/Orphograph/Orphograph/releases/download/mcp-v0.1.1/orphograph-mcp-0.1.1.mcpb"
      ],
      "env": {
        "ORPHO_API_KEY": "<secret>",
        "ORPHO_BASE_URL": "<value>"
      }
    }
  }
}

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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Orphograph

Add this server

Host a copy with our keys and logs.

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