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Evidence for your next connection.

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

Read-only probes

MCP server · Code & DevOps

LEGION Verify: MCP tool-list history

Check if an MCP server changed its tools: signed history, per-server coverage, offline proofs.

Checks passed
14 / 22

1 failed · 7 not measured

Median response
411 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
5

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?
310
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 395 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name LEGION Verify.

  • Pass
    Lists tools

    tools/list returned 5 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 411 ms over 2 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 425 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.

  • Fail
    Parameters documented

    0 of 7 parameters have a description (0%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Not measured
    Website matches publisher

    This namespace is not a reverse domain, so the website comparison does not apply.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Pass
    Repo owner matches

    The GitHub repository owner matches the namespace login.

  • Pass
    Recently updated

    Updated 2026-10-17T16:58:31.181326Z, within 180 days.

  • Not measured
    Open-source licence

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

Start using LEGION Verify: MCP tool-list history

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 legion-verify-mcp-tool-list-history https://mcp.legion-api.com/mcp

Capabilities

Tools 5

check_mcp_server

One-call summary for an MCP server registry id (e.g. "ai.alphaquantlabs/propertycheck"): tool-list fingerprint history observed by LEGION, last change, per-server coverage from the signed COVERAGE_V1 register (COMPLETE only if observed in every register cycle, UNKNOWN if partial), proof references and a command that verifies everything offline. Read-only. Unknown id -> state UNKNOWN (absence from the log is not a verdict). A change is not an attack; this log does not certify that a server is secure.

Discovered
get_checkpoint

Latest signed tree head of the LEGION MCP transparency log. The signature is checked against the keyring, anchored on the pinned root key fingerprint. Read-only. Returns tree_size, root_sha256, timestamp, signer and signature_valid. For a trustless check, verify it yourself (see `how_to_verify_yourself`).

Discovered
get_server_changes

Signed tool-list history of one MCP server as observed by LEGION (registry id, e.g. "xyz.signomy/civitae"), newest first, at most `limit` (1-50) changes, plus an evidence bundle for the latest record (record + RFC 9162 inclusion proof + signed tree head + keyring) that `verify_evidence_bundle` checks offline. A change is not a fault; history = what LEGION observed, not what other clients see.

Discovered
verify_evidence_bundle

Verify an evidence bundle OFFLINE (no network call): keyring chain from the pinned root fingerprint, record signature and integrity, signed tree head, RFC 9162 inclusion proof. If `approved_tools_sha256` is given, also reports whether the signed tool list still matches the version you approved (UNAPPROVED_CHANGE if not). Bundle = {record, proof, sth, keyring} as returned by get_server_changes (max 256 KB).

Discovered
verify_mcp_server

Check an MCP server URL against LEGION's signed transparency log. Read-only. For each registry server at this URL: latest signed tool definition (leaf index, date, tools_sha256), number of tool changes (total and 30 days), date of the last change, RFC 9162 inclusion proof + signed tree head (re-verified here from the pinned root key), an evidence bundle for `verify_evidence_bundle`, and — if live=true — whether the tool list served NOW differs from the signed one (live check by LEGION: initialize + tools/list only, public addresses only, NOT signed). A change is not a fault; history = what LEGION observed, not what other clients see.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected395 ms5
Connected427 ms5