MCP server

Akashi Notari

io.github.self-reality/akashi-notari

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

2

Token cost

About 338 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.akashi-notari]
url = "https://anchor.akashi-notari.com/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"akashi-notari":{"type":"http","url":"https://anchor.akashi-notari.com/mcp"}}}

Antigravity

agy mcp add akashi-notari https://anchor.akashi-notari.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"akashi-notari","server_url":"https://anchor.akashi-notari.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"akashi-notari","server_url":"https://anchor.akashi-notari.com/mcp"}

Tools

• anchor_hash ~190 tokens
  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
• find_proof ~148 tokens
  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.

Browse

• GitHub tools
• Payments
• GitHub and code hosting
• Crypto and blockchains

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• Anchor X402
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• Vealth
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• Automaton Token Safety
  Base L2 token safety for AI agents: honeypot scans, swap simulation, approval and liquidity risk.
• Markovianprotocol Provenance
  Stamp or notarize data into a public witnessed transparency log. Proves timing, not truth.

Badge for your README

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