booklint stamp MCP Server

by booklint Your server? Claim it

answering

booklint stamp is answering right now. Last checked 8 min ago. It exposes 2 tools.

Signed timestamp receipts for a SHA-256 hash. Send only the hash; we never see the document.

Uptime history 7 days of history · worst day 99%

7 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

282 ms

Response time

average over 24h

open, no key

Access

streamable-http

booklint stamp missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add stamp --transport http https://booklint-stamp.fly.dev/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "stamp": {
      "url": "https://booklint-stamp.fly.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.stamp]
url = "https://booklint-stamp.fly.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "stamp": {
      "url": "https://booklint-stamp.fly.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "stamp": {
      "url": "https://booklint-stamp.fly.dev/mcp"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

stamp

stamp_hash

Returns a signed receipt {sha256, stamped_at, key_id, signature, public_key_url}: a booklint-family service saw this hash at stamped_at, signed with key key_id. Send ONLY a SHA-256 hex digest (64 characters). We never see or store the document — only the hash you send. This is not legal proof, notary service, evidence, or a certificate of anything. Not advice.

verify

verify_receipt

Checks a receipt from stamp_hash against the published public keys (same check as POST /v1/verify; pass the receipt fields as arguments). Returns valid true or false with a reason. valid true means only that this service signed that hash and time with that key. This is not legal proof, notary service, evidence, or a certificate of anything.

Endpoints

URL	Transport	State	Latency	Checked
https://booklint-stamp.fly.dev/mcp	streamable-http	answering	252 ms	8 min ago

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booklint stamp — questions

Answers built from our own checks of this server.

What can booklint stamp do?

It exposes 2 tools, read directly from the server on our last check. Among them: stamp_hash, verify_receipt. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is booklint stamp working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 282 ms. The bar chart above shows every period we have measured.

How do I connect booklint stamp?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does booklint stamp need an API key?

No. booklint stamp completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is booklint stamp?

It answers our handshake in 282 ms on average, which is faster than 50% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.