registry / @one-source/mcp / 5.13.0
@one-source/mcp@5.13.0
Unified MCP server for OneSource — 64 tools for blockchain data, Deepstate and The Standard Reserve market data, and REST API documentation, with x402 (USDC on Base) and MPP (Tempo) pay-per-call payment rails
AI Security Review
scanned 4d ago · by lpm-firewall-aiThe flagged credential flow sends a user-submitted OneSource API key to the OneSource API for validation. Runtime analytics is enabled by default, but the package describes it as anonymous and optional and provides an explicit opt-out; the inspected events contain usage metadata rather than credential or tool-input values.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Server startup and tool use trigger runtime analytics; API-key validation occurs after a user submits a key through the connect flow.
Impact
No unintended credential disclosure, account action, or other attack behavior was identified in the reviewed paths.
Mechanism
The submitted key is checked against the OneSource API. Analytics sends operational usage metadata to OneSource’s dashboard and can be disabled with ONESOURCE_ANALYTICS=false.
AI rationale
The flagged credential flow sends a user-submitted OneSource API key to the OneSource API for validation. Runtime analytics is enabled by default, but the package describes it as anonymous and optional and provides an explicit opt-out; the inspected events contain usage metadata rather than credential or tool-input values.
Evidence
package.jsondist/connect-page.jsdist/analytics.jsdist/register-api-tools.jsdist/register-docs-tools.jsdist/cli.js
Network endpoints3
api.onesource.io/api/chain/chain-id?network=ethereum1s-analytics.vercel.app/api/eventsregistry.npmjs.org/@one-source/mcp/latest
Decision evidence
public snapshotAI called this Clean at 94.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The prepare script runs TypeScript compilation; no install hook behavior that contacts a host is shown.
- The connect flow validates a submitted API key against the OneSource API, using ONESOURCE_BASE_URL when configured.
- Runtime analytics defaults to OneSource’s dashboard and can be disabled with ONESOURCE_ANALYTICS=false.
- Tool analytics reports operational metadata such as tool names, parameter names, client name/version, and a hashed session ID; the inspected event construction does not include parameter values or tool output.
- The setup prompt describes analytics as optional, states that it is on by default, and tells users how to turn it off.
Evidence against
- Dashboard analytics is enabled by default and includes client name/version and tool usage metadata.
- The package performs network requests during runtime for analytics and version checks.
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@5.13.0.
See all versions of @one-source/mcp for other recorded verdicts.
- Review the evidence and your use of @one-source/mcp@5.13.0 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: .
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