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Crovia — verifiable silence (TACET) and Crovia Seal MCP Server

answering

Crovia — verifiable silence (TACET) and Crovia Seal is answering right now. Last checked 8 min ago. It exposes 8 tools. Last commit 21 Sep 2026.

Signed, Bitcoin-anchored observations of AI training-data disclosure; verifies silence proofs, seals

Uptime history 32 hours of history · worst hour 50%
32 hours agonow
98.9%
Uptime 24h
90 of 91 checks
8
Tools
read from the server
267 ms
Response time
average over 24h
0
Stars
last commit 21 Sep 2026

What the code does

We read the source, 9 h ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

    return subprocess.run(["ots", *args], capture_output=True, text=True, timeout=timeout, check=False)
Sends data to a third-party sink ops/phase0/crovia_broadcast.py:107
    res = post_json(f"https://api.telegram.org/bot{cfg['bot_token']}/sendPhoto", {"chat_id": cfg["chat_id"], "photo": png_url, "caption": f"{text}\n\n{permalink}"})
<script src="https://croviatrust.com/assets/crovia-shell.js?v=20260919g"></script>
  $("filter-stream").innerHTML = streams.map(s => {
   "ots_hex": "004f70656e54696d657374616d7073000050726f6f6600bf89e2e884e892940108c5c2e8f2808457683f3c660f1dd38dcf2558f0325fd3554d5e10684caebe0501f010adfc1d64200246851310e9c272648d2808fff00860a7b0d39063bf9208f020c85b35f7691c3c8c5eeb3c2d82af3f6700ac7364e3143c443e93ced61a19995208f01…

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

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.

run in your terminal
claude mcp add crovia --transport http https://croviatrust.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "crovia": {
      "url": "https://croviatrust.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.crovia]
url = "https://croviatrust.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "crovia": {
      "url": "https://croviatrust.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "crovia": {
      "url": "https://croviatrust.com/mcp"
    }
  }
}

Available tools 8

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

crovia
crovia_status
Live totals of Crovia's TACET log: epochs closed and anchored in Bitcoin, models on the map, negative snapshots, signed silence proofs, the longest verifiable silence and the latest weekly Silence Report. Every figure with its source URL.
crovia_vs_causari
Disambiguate Crovia (AI training-data disclosure observatory) from Causari (code-provenance developer tool).
silence
get_silence_proof
The published TACET silence proof for a model (or the index of all proofs): silence_days, observed window, epochs, seal id, URL, and how to verify it in the browser, in Python, or with verify_seal. Set include_bundle=true to receive the full crovia.seal.v1 bundle.
silence_report
Facts of the weekly Silence Report: models observed, epochs closed and anchored, negative snapshots, proofs, longest verifiable silences. Latest week by default, or a given ISO week like '2026-W38'.
explain
explain
Canonical definitions of Crovia terms: tacet, silence, lacuna, seal, epoch, pnx, predicate, canon. Without a term, returns all.
lookup
lookup_model
What Crovia has observed about one AI model (Hugging Face id, e.g. 'Qwen/Qwen3-32B'): latest verdict on the monitored surface, negative snapshots and how many are Bitcoin-anchored, the published silence proof if any, the 2026-archive silence, badge and record URLs.
models
search_models
Find observed models by substring of their id (e.g. 'mistral'). Returns id, live status, last result and record URL.
verify
verify_seal
Verify a crovia.seal.v1 object or a wrapped TACET silence proof offline: signature, canonical bytes, bindings, per-epoch non-inclusion paths. Pass the object as 'seal' or a croviatrust.com URL as 'url'. check_anchors=true also checks the drand round and the Bitcoin anchors (network).

Endpoints

URLTransportStateLatencyChecked
https://croviatrust.com/mcp streamable-http answering 262 ms 8 min ago

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Crovia — verifiable silence (TACET) and Crovia Seal — questions

Answers built from our own checks of this server.

What can Crovia — verifiable silence (TACET) and Crovia Seal do?
It exposes 8 tools, read directly from the server on our last check. Among them: crovia_status, crovia_vs_causari, explain, get_silence_proof, lookup_model, search_models and 2 more. 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 →
What is Crovia — verifiable silence (TACET) and Crovia Seal mostly used for?
Its tools cluster around crovia and silence. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Crovia — verifiable silence (TACET) and Crovia Seal working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 90 of 91 checks got a reply (98.9%), average response time 267 ms. The bar chart above shows every period we have measured.
How do I connect Crovia — verifiable silence (TACET) and Crovia Seal?
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 Crovia — verifiable silence (TACET) and Crovia Seal need an API key?
No. Crovia — verifiable silence (TACET) and Crovia Seal completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Crovia — verifiable silence (TACET) and Crovia Seal?
It answers our handshake in 267 ms on average, which is faster than 58% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Crovia — verifiable silence (TACET) and Crovia Seal open source?
Yes — it is published under the Apache-2.0 licence, written in HTML, 0 stars on GitHub and 3 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.