@one-source/mcp@5.14.0
64 tools: blockchain data, Deepstate and Standard Reserve markets, live chain queries, and API docs
AI Security Review
scanned 4d ago · by lpm-firewall-aiThe package sends default runtime telemetry to its own analytics service, including client details and a wallet identifier, without clear user-facing disclosure. The flagged API-key validation is a separate user-submitted flow to the OneSource API and does not establish credential exfiltration.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
The MCP server creates analytics by default; tool calls generate events that flush when the buffer fills or on its periodic timer.
Impact
The service receives identifying usage metadata without clear user-facing disclosure, so this is suspicious runtime telemetry.
Mechanism
The package posts buffered events to https://1s-analytics.vercel.app/api/events. Events include client details, a hashed session ID, and a wallet identifier. ONESOURCE_ANALYTICS=false disables analytics.
AI rationale
The package sends default runtime telemetry to its own analytics service, including client details and a wallet identifier, without clear user-facing disclosure. The flagged API-key validation is a separate user-submitted flow to the OneSource API and does not establish credential exfiltration.
Evidence
dist/analytics.jsdist/register-api-tools.js.lpm-dependency-evidence-4a7ab65f-51a3-419a-95a0-ab48e7abd443/1/npm-linux/dist/analytics.jsdist/connect-page.js
Network endpoints2
1s-analytics.vercel.app/api/eventsapi.onesource.io/api/chain/chain-id?network=ethereum
Decision evidence
public snapshotAI called this Suspicious at 91.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The server configures dashboard analytics by default with the OneSource analytics endpoint and a built-in analytics key; an environment variable can disable it.
- API tool calls record usage events, including tool and network names, input parameter names, response size, and a hashed session ID.
- Events also include client name and version, transport, and a wallet identifier.
- The analytics implementation POSTs buffered events to its configured /api/events endpoint using a bearer key.
- The flagged API-key flow accepts a key in an OAuth connect submission and validates it against the configurable OneSource API base.
Evidence against
- The analytics destination is the package’s own analytics service, and the source provides an opt-out variable.
- The inspected telemetry records parameter names rather than parameter values; the flagged API key is sent to the OneSource API service for validation.
Behavioral surface
CryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flaggeddist/connect-page.jsView file
9const MIN_KEY_FAIL_MS = 250;
L10: // Accepts the base64url output of randomBytes(16) used as internalState in oauth.ts.
L11: const STATE_RE = /^[A-Za-z0-9_-]{1,100}$/;
...
L27: res.writeHead(status, JSON_HEADERS);
L28: res.end(JSON.stringify({ error }));
L29: }
...
L31: try {
L32: const base = (process.env.ONESOURCE_BASE_URL ?? 'https://api.onesource.io').replace(/\/+$/, '');
L33: const r = await fetch(`${base}/api/chain/chain-id?network=ethereum`, {
Critical
Credential Exfiltration
Source appears to send environment or credential material to an external endpoint.
dist/connect-page.jsView on unpkg · L99Trigger-reachable chain: manifest.bin -> dist/cli.js -> dist/connect-page.js
L9: const MIN_KEY_FAIL_MS = 250;
L10: // Accepts the base64url output of randomBytes(16) used as internalState in oauth.ts.
L11: const STATE_RE = /^[A-Za-z0-9_-]{1,100}$/;
...
L27: res.writeHead(status, JSON_HEADERS);
L28: res.end(JSON.stringify({ error }));
L29: }
...
L31: try {
L32: const base = (process.env.ONESOURCE_BASE_URL ?? 'https://api.onesource.io').replace(/\/+$/, '');
L33: const r = await fetch(`${base}/api/chain/chain-id?network=ethereum`, {
Critical
Trigger Reachable Dangerous Capability
A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.
dist/connect-page.jsView on unpkg · L9Findings
2 Critical2 High3 Medium5 Low
CriticalCredential Exfiltrationdist/connect-page.js
CriticalTrigger Reachable Dangerous Capabilitydist/connect-page.js
HighTrigger Reachable Credential Exfiltrationdist/connect-page.js
HighSemantic Analysis Limiteddist/register-docs-tools.js#virtual:normalized:round1
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowNon Install Lifecycle Scripts
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @one-source/mcp@5.14.0.
See all versions of @one-source/mcp for other recorded verdicts.
- Review the evidence and your use of @one-source/mcp@5.14.0 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.