registry / @one-source/mcp / 5.12.0
@one-source/mcp@5.12.0
Unified MCP server for OneSource — 46 tools for blockchain data, Deepstate 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 request handles an API key explicitly submitted through the package’s CSRF-bound connect flow and sends it to OneSource’s API for validation. The manifest’s prepare script only compiles TypeScript, and no automatic credential collection or unrelated destination was found.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
A user submits an API key to the HTTP server’s connect-submit endpoint during the OAuth connection flow.
Impact
The key is used for the OneSource connection the user requested; no automatic collection or unrelated credential transfer was identified.
Mechanism
The server validates the submitted key against the configured OneSource API host and then issues an authorization code.
AI rationale
The flagged credential request handles an API key explicitly submitted through the package’s CSRF-bound connect flow and sends it to OneSource’s API for validation. The manifest’s prepare script only compiles TypeScript, and no automatic credential collection or unrelated destination was found.
Network endpoints1
api.onesource.io
Decision evidence
public snapshotAI called this Clean at 94.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The manifest exposes a CLI and a server factory; its prepare script only runs TypeScript compilation.
- The connect-submit endpoint accepts an API key in a CSRF-bound OAuth flow and validates that submitted key.
- Validation sends the candidate key as a Bearer token to the configured OneSource API host, defaulting to api.onesource.io.
- The OAuth code is issued only after the connect-submit request passes validation.
Evidence against
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsMinifiedPossibleObfuscationUrlStrings
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@5.12.0.
See all versions of @one-source/mcp for other recorded verdicts.
- Review the evidence and your use of @one-source/mcp@5.12.0 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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