Orphograph MCP
An MCP server that anchors file SHA-256 fingerprints to the Bitcoin blockchain via OpenTimestamps. It provides tools to anchor files, folders, and agent outputs locally, verify receipts, and check edit lineage without transmitting file contents to the server.
Package and access
Local package with source-attributed installation metadata. Koskamo does not execute packages during review.
Requires an Orphograph API key supplied via the ORPHO_API_KEY environment variable
Vendor documentation What you can do with it
- Anchor a file's SHA-256 fingerprint to Bitcoin
- Verify a receipt's calendar attestation counts
- Walk an edit-lineage chain from a receipt
- List signed-in subscriber's anchored receipts
Source and maintenance
Community listingRegistry 0.1.2
- Maintenance checked
Packages and installation
Source-provided package data. Koskamo has not executed or live-probed this package.
https://github.com/Orphograph/Orphograph/releases/download/mcp-v0.1.2/orphograph-mcp-0.1.2.mcpb 0.1.2
mcpbSHA-256 supplied
https://github.com/Orphograph/Orphograph/releases/download/mcp-v0.1.2/orphograph-mcp-0.1.2.mcpb package definition
{
"version": "0.1.2",
"transport": "stdio",
"fileSha256": "6ea376870bea64672b4d4f3e0b919fa0a3dae47e95dd0451de1bd91490df3c46",
"identifier": "https://github.com/Orphograph/Orphograph/releases/download/mcp-v0.1.2/orphograph-mcp-0.1.2.mcpb",
"registryType": "mcpb",
"environmentVariables": [
{
"name": "ORPHO_API_KEY",
"description": "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."
},
{
"name": "ORPHO_BASE_URL",
"default": "https://orphograph.com",
"description": "Base URL for the Orphograph API. Defaults to https://orphograph.com. Override only for testing or self-hosted instances."
}
]
}Tools
Reported by the attributed source; not independently observed by Koskamo.
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