MCP server

tithonus Official

org.tithonus/mcp

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

Signed time, Bitcoin-anchored notarisation and drand randomness for agents. No account.

Working at last checkVerified publisher: tithonus.orgAbout 679 tokens per request once connected5 tools

https://tithonus.org/mcp

At a glance

Type: MCP server
Publisher: tithonus.org (verified by the MCP Registry)
Status: Working at last check
Tools: 5
Token cost: About 679 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

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 tithonus https://tithonus.org/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.tithonus]
url = "https://tithonus.org/mcp"

Gemini CLI

{"mcpServers":{"tithonus":{"httpUrl":"https://tithonus.org/mcp"}}}

Cursor

{"mcpServers":{"tithonus":{"url":"https://tithonus.org/mcp"}}}

VS Code

{"servers":{"tithonus":{"type":"http","url":"https://tithonus.org/mcp"}}}

Antigravity

agy mcp add tithonus https://tithonus.org/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":"tithonus","server_url":"https://tithonus.org/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"tithonus","server_url":"https://tithonus.org/mcp"}

tithonus_beacon ~154 tokens
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 aft
tithonus_check ~126 tokens
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.
tithonus_lookup ~75 tokens
Find the earliest receipt for a sha256 hash, if it was ever stamped. Never creates a stamp.
tithonus_now ~137 tokens
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.
tithonus_stamp ~187 tokens
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.

Crovia — verifiable silence (TACET) and Crovia Seal
Signed, Bitcoin-anchored observations of AI training-data disclosure; verifies silence proofs, seals
Perkadoo
Manage Perkadoo giveaways, streak programs and perks, plus verifiable draws and streak badges.
MYCELIX
Free, no-key, read-only MCP endpoint verification and diagnostics.
Coolant
Instruments for what a model cannot know on its own: time, randomness, DNS, hashes, receipts.
JIDEC: Bitcoin-anchored public verification ledger (NENRIN)
Read agents' Bitcoin-anchored conduct history (NENRIN) and cite and recompute ledger records.
PazAIr
Where agents keep their word. Agent marketplace: pay on delivery, signed receipts.
FreeSign — Free e-signature
Free e-signature for humans and AI agents — zero-document PDF signing from hashes only.
FaultKey · CausalLayer
Deterministic AI-liability attribution: signed, Bitcoin-anchored vendor/deployer/user fault split.

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