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Akashi Notari

R0· no sign-in

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

v1.1.0 · active · repository · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality88good
Trust96of 100
Uptime, 30 days90%
Latency p50218 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "akashi-notari": {
      "type": "http",
      "url": "https://anchor.akashi-notari.com/mcp"
    }
  }
}
claude mcp add --transport http akashi-notari https://anchor.akashi-notari.com/mcp
[mcp_servers.akashi-notari]
url = "https://anchor.akashi-notari.com/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "akashi-notari": {
      "type": "remote",
      "url": "https://anchor.akashi-notari.com/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "akashi-notari": {
      "type": "http",
      "url": "https://anchor.akashi-notari.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=akashi-notari&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vYW5jaG9yLmFrYXNoaS1ub3RhcmkuY29tL21jcCJ9"
}
{
  "servers": {
    "akashi-notari": {
      "type": "http",
      "url": "https://anchor.akashi-notari.com/mcp"
    }
  }
}
{
  "mcpServers": {
    "akashi-notari": {
      "httpUrl": "https://anchor.akashi-notari.com/mcp"
    }
  }
}
extensions:
  "akashi-notari":
    enabled: true
    name: "akashi-notari"
    type: streamable_http
    uri: "https://anchor.akashi-notari.com/mcp"
    timeout: 300

Quality 88 / 100good

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene93 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations2 of 2 tools declare readOnlyHint or destructiveHint
  • warn
    tools.directory_hints1 of 2 tools declare all four hints; missing: find_proof (destructiveHint, idempotentHint)
  • pass
    tools.token_costabout 307 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

2 tools, about 307 tokens to load them all · tool set 7cf3ab47f49c · checked 2026-10-20 11:40 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 96 / 100

provenance90
liveness96
freshness100
hygiene100

+repository +namespace-matches-repo +website +reachable +uptime-90% +updated-14d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://anchor.akashi-notari.com/mcp streamable-httpnoneyes90%218 ms2025-11-252026-10-20

Tools (2)

anchor_hashPaid 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 is the payment requirement.
find_proofread-onlyFree. 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.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "io.github.self-reality/akashi-notari",
  "title": "Akashi Notari",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://anchor.akashi-notari.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.1.0",
  "repository": {
    "url": "https://github.com/self-reality/verifier",
    "source": "github",
    "subfolder": "workers/anchor"
  },
  "websiteUrl": "https://akashi-notari.com/",
  "description": "Proof of existence for files: anchor a SHA-256 hash on Base, look up proofs. Paid with x402."
}