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Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Payments & trading

Crovia — verifiable silence (TACET) and Crovia Seal

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

Checks passed
15 / 22

0 failed · 7 not measured

Median response
2367 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
8

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
103
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 2322 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-06-18, serverInfo.name crovia.

  • Pass
    Lists tools

    tools/list returned 8 tools.

  • Pass
    Current protocol

    Negotiated 2025-06-18. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 2367 ms over 2 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 2407 ms over 2 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    2 of 2 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Pass
    Stable tool list

    No tool was removed and no required parameter was added in the last 30 days.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    10 of 10 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-08T19:42:37.826672Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using Crovia — verifiable silence (TACET) and Crovia Seal

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http crovia-verifiable-silence-tacet-and-crovia-seal https://croviatrust.com/mcp

Capabilities

Tools 8

crovia_status

Live totals at this moment: epochs closed, epochs anchored in Bitcoin, models on the map, snapshot counts, signed silence proofs, and a pointer to the longest verifiable silence. No parameters. This is not a weekly Silence Report, not one model's record, and not a proof bundle. Reads published files only.

Discovered
crovia_vs_causari

Which product is which. Crovia observes training-data disclosure. Causari is the code-provenance tool. No parameters. Use this, not explain and not crovia_status, when the question is the difference between the two. Reads no catalog.

Discovered
explain

The definition of one Crovia term. Allowed terms: tacet, silence, lacuna, seal, epoch, pnx, predicate, canon. Omit term, or pass an empty or blank string, to receive every definition. Any other value is an error listing those allowed terms, and it does not return the definitions. Use crovia_vs_causari, not explain, to tell the two products apart.

Discovered
get_silence_proof

The published silence proof for one model: silence_days, observed window, epochs, seal id, URL, and how to verify it. model omitted or empty returns the proof index, not a bundle. include_bundle defaults to false; true attaches the crovia.seal.v1 bundle for that one model and does nothing on the index. This is not the live totals and not the weekly report. Reads published files only.

Discovered
lookup_model

One model's observation: latest verdict, negative snapshots, anchored epochs, silence proof pointer, archive silence, badge and record URL. Required model is a Hugging Face id, org/name, for example Qwen/Qwen3-32B. An empty model is an error. An exact id is used; otherwise one case-insensitive substring match is accepted, and several matches return candidates instead of a verdict. This is not a catalog page, not the weekly report, and not the seal bytes. Reads published files only.

Discovered
search_models

A page of observed model ids whose id contains query, compared case-insensitively, in catalog order, not a ranking. query omitted or empty matches the whole catalog and still returns at most limit rows. limit follows the historical rule: a missing, empty, zero or other falsy value is 25; any value int() accepts is then clamped into 1..100 (500 becomes 100, a negative becomes 1); a value int() cannot parse is an error and nothing is searched. returned and its compatibility alias count are the rows in this page. matched is how many ids match before the limit. catalog_total and its compatibility alias total_records are every record in the catalog, matching or not. limit is the limit actually applied. count is not the match count, and total_records is not the match count. This is not a verdict and not a proof. Reads published files only.

Discovered
silence_report

One published weekly Silence Report, or the latest report index. week is an ISO week YYYY-Www, for example 2026-W38. Omit week, or pass an empty string, to receive the latest index rather than one week's facts. A week that is not YYYY-Www is an error. A week with no published file is an error and names the index. This is not the live status and not one model's proof. Reads published files only.

Discovered
verify_seal

Check a crovia.seal.v1 object or a wrapped TACET silence proof: signature, canonical bytes, bindings, and per-epoch non-inclusion paths. Pass seal as a JSON object or a JSON string, or url as an https://croviatrust.com/ address. With neither, the call is an error. Supplying url fetches that URL over the network. check_anchors defaults to false; true also checks the drand round bytes and the Bitcoin anchors over the network. A seal object with check_anchors false or omitted is checked from that object alone. This tool can reach the network, so it is not a closed-world call.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected2322 ms8
Connected2411 ms8