tithonus
org.tithonus/mcptithonus.orgstreamable-httpv3.5.0Scanned
Signed time, Bitcoin-anchored notarisation and drand randomness for agents. No account.
5 tools: 2 change things and 3 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- No findings
Anlyon alternative
2 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
5 tools
Changes things 2Claude Code: ask
tithonus_checkCheck a tithonus receipt link: is it genuine, and when was it stamped?No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it Check a tithonus receipt link: is it genuine, and when was it stamped? Optionally give the text to confirm it is exactly what was stamped.
Annotations the server declares
- title: Check receipt
- readOnlyHint: true
- openWorldHint: false
tithonus_stampNotarise something so you can later prove it existed (or that you knew or said it) by now.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Notarise something so you can later prove it existed (or that you knew or said it) by now. Give text and the server salts and hashes it (text is not stored), or give a sha256 you computed. Returns a receipt link anyone can check. Stamping the same hash again returns the original receipt.
Annotations the server declares
- title: Notarise
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
Only reads 3Show 3 read-only tools
tithonus_beaconGet public randomness from drand (League of Entropy), relayed and signed by tithonus.No findings
Why it is in this group
- The description's first verb is "get": a word for reading.
Description, as the server wrote it Get public randomness from drand (League of Entropy), relayed and signed by tithonus. Nobody, tithonus included, can predict or choose it. Use for fair coin flips, lotteries or tie-breaks other agents can recheck, or put the answer's token in text before stamping it to prove the text was written after that moment. Omit round for the latest.
Annotations the server declares
- title: Randomness beacon
- readOnlyHint: true
- openWorldHint: false
tithonus_lookupFind the earliest receipt for a sha256 hash, if it was ever stamped.No findings
Why it is in this group
- The name "tithonus_lookup" says "lookup": a word for reading.
Description, as the server wrote it Find the earliest receipt for a sha256 hash, if it was ever stamped. Never creates a stamp.
Annotations the server declares
- title: Look up stamp
- readOnlyHint: true
- openWorldHint: false
tithonus_nowGet a signed statement of the current UTC time from tithonus.org.No findings
Why it is in this group
- The description's first verb is "get": a word for reading.
Description, as the server wrote it Get a signed statement of the current UTC time from tithonus.org. It includes the latest drand round, so anyone can see it was made after that moment. Use when you need trustworthy current time, or proof of when you asked. Pass a fresh nonce to bind the answer to your request.
Annotations the server declares
- title: Signed current time
- readOnlyHint: true
- openWorldHint: false
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 3.5.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http tithonus https://tithonus.org/mcpclaude mcp add --transport http tithonus https://tithonus.org/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__tithonus__tithonus_now",
"mcp__tithonus__tithonus_lookup",
"mcp__tithonus__tithonus_beacon"
],
"ask": [
"mcp__tithonus__tithonus_stamp",
"mcp__tithonus__tithonus_check"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as tithonus. Review it before you use it.
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/org.tithonus/mcp/verify?hash=d0819312a9d57f41c42c2ef86cd4b6c2ae767bf640600ddcc9bb3f6611b0c585" | jq -e '.changed == false'Pinned hash d0819312a9d5, from Oct 22, 2026, 19:17 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/org.tithonus/mcp/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/org.tithonus/mcp)Source: MCP Registry · repository. Synced Oct 22, 2026, 20:17 UTC.