MCP Server Attestation
NPM · MCP-ATTEST-DEMO · SCANNED AUG 3
Ed25519-signed MCP tool manifests + spawn attestation. Layer-2 supply-chain hardening.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →
Supply Chain Security87
- No malware found by supply-chain analysis.Pass
- Only part of the dependency tree could be resolved (96 of 100), so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- Only part of the dependency tree could be resolved (96 of 100), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 42 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability66
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 316 tokens (~63/item across 5 items; 5 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
- Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage81
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 42% of tool parameters carry a description.Partial
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
npm · mcp-attest-demo
claude mcp add io-studiomeyer-server-attestation -- npx -y mcp-attest-demo
codex mcp add io-studiomeyer-server-attestation -- npx -y mcp-attest-demo
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"io-studiomeyer-server-attestation": {
"type": "local",
"command": [
"npx",
"-y",
"mcp-attest-demo"
],
"enabled": true
}
}
} openclaw mcp add io-studiomeyer-server-attestation --command npx --arg -y --arg mcp-attest-demo
mcp_servers:
io-studiomeyer-server-attestation:
command: "npx"
args: ["-y", "mcp-attest-demo"] {
"mcpServers": {
"io-studiomeyer-server-attestation": {
"command": "npx",
"args": [
"-y",
"mcp-attest-demo"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Aug 26 +4
- Stability: unverified → 0.23 ▲ functional
- 2 Aug 26 +37
- Provenance: unverified → fail ▼ security
- Install scripts: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Malware scan: unverified → pass ▲ security
- Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet. security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Schema quality: unverified → good ▲ functional
- Maintenance: unverified → pass ▲ functional
- Dependency health: unverified → partial ▲ functional
- License: unverified → pass ▲ functional
- Licence: MIT functional
- 1 Aug 26 +19
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- MCP protocol: unverified → pass ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- 31 Jul 26 −21
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 −18
- Malware scan: pass → unverified ▼ security
- 27 Jul 26 44
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 3 Aug 2026 · Analysed npm/[email protected]
Provenance none
Ecosystem: npm · Outcome: none
Dependencies 96 packages
96 packages in the resolved dependency tree · 95 deprecated · 29 stale.
The dependency tree was only partially resolved, so these counts may be incomplete.
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
attest_generate_manifest_template ~47
Generate an unsigned manifest template for a server name and tool list. Caller fills in arg rules and signs.
| Name | Type | Req | Description |
|---|---|---|---|
| serverName | string | yes | — |
| toolNames | array | yes | — |
No output schema declared.
No examples provided.
attest_inspect_spawn ~74
Pre-flight a spawn request against an in-memory signed manifest object. Returns allowed + matchedRule + blockedReasons[].
| Name | Type | Req | Description |
|---|---|---|---|
| args | array | yes | argv to validate. |
| command | string | yes | Command to spawn. |
| manifest | object | yes | SignedManifest object (full payload, with manifest+signature+publicKey). |
No output schema declared.
No examples provided.
attest_keygen ~47
Generate a fresh Ed25519 keypair and write public + private hex files plus return the sha256 fingerprint.
| Name | Type | Req | Description |
|---|---|---|---|
| keyName | string | yes | — |
| outputDir | string | yes | — |
No output schema declared.
No examples provided.
attest_sign_manifest ~68
Sign a manifest file with an Ed25519 private key. Writes signed-manifest JSON to outputPath. The manifest's publicKeyFingerprint must already match the signing key.
| Name | Type | Req | Description |
|---|---|---|---|
| manifestPath | string | yes | — |
| outputPath | string | yes | — |
| privateKeyPath | string | yes | — |
No output schema declared.
No examples provided.
attest_verify_manifest ~80
Verify a signed MCP manifest file against an embedded or supplied public key. Returns valid + signer + toolCount + errors[].
| Name | Type | Req | Description |
|---|---|---|---|
| manifestPath | string | yes | Path to the signed-manifest JSON file. |
| publicKeyPath | string | yes | Path to the hex-encoded public key (informational, ignored if manifest carries its own publicKey field). |
No output schema declared.
No examples provided.