All servers · Agent payments (x402) · Payments & accounting

Akashi Notari

io.github.self-reality/akashi-notari · v1.1.0

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Can write (some tools are not declared read-only)
Capabilities declared	tools
Tool definitions	2 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

Proof of existence for files: anchor a SHA-256 hash on Base, look up proofs. Paid with x402.

streamable-http · https://anchor.akashi-notari.com/mcp

claude mcp add --transport http akashi-notari https://anchor.akashi-notari.com/mcp

{
  "mcpServers": {
    "akashi-notari": {
      "url": "https://anchor.akashi-notari.com/mcp"
    }
  }
}

find_proof
Free. Look up whether a file hash is anchored on Base and when, or read the proof written by a transaction. Pass `hash` or `tx`. Call it before anchor_hash to avoid paying for a hash that is already anchored.
anchor_hash
Paid with x402 (USDC on Base). Writes the SHA-256 hash of a file on-chain; the block time becomes the proof of existence. Compute the hash locally and never send the file. The hash, the filename and the payer address become public and permanent. Without a payment in _meta["x402/payment"] the result

Repository · Website · JSON · Text for agents · Registry updated 2026-10-06