@blockrun/llm@3.24.3

⚠ Under review

TypeScript SDK for BlockRun - every frontier model behind one OpenAI-compatible client. Pay with a BlockRun API key or per-call in USDC. Smart routing picks the cheapest capable model. No rate limits.

AI Security Review

scanned 3d ago · by lpm-firewall-ai

The flagged wallet behavior matches the package's payment flow, and the inspected code does not establish an unrelated transfer. The declared runtime dependencies include unresolved source in the supplied snapshot, so the package cannot be cleared from this inspection.

Static reason

High-risk behavior combination matched malicious policy.

Trigger

A caller uses a wallet-backed API client and receives a payment-required response.

Impact

The reviewed flow authorizes the stated payment; unresolved dependency source prevents a clean determination.

Mechanism

The client signs the amount and recipient in that response as a payment authorization.

AI rationale

Evidence

package.jsondist/index.js

Network endpoints1

api.blockrun.ai

Decision evidence

public snapshot

AI called this Manual Review at 72.0% confidence as Unknown with medium false-positive risk.

AI review observations

The manifest has build and test scripts but no install lifecycle hook.
The package declares viem and the Anthropic SDK as runtime dependencies, and the ESM entrypoint loads the Anthropic SDK when that client is used.
The inspected payment path signs the amount and recipient supplied in a payment-required response.
The wallet resolver reads the package's session or legacy wallet file.
The CommonJS entrypoint contains the same payment-signing helper.

Evidence against

The inspected source shows a wallet-backed API request signing a payment authorization from the response terms; it does not establish an unrelated wallet drain.
The available source does not establish malicious behavior, but the unresolved runtime dependency sources prevent clearing the package.

Behavioral surface

Source

CryptoEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsUrlStrings

Source & flagged code

5 flagged

dist/index.jsView file

Lines 81-121javascript

81 if (temperature === void 0 || temperature === null) {

82 return;

83 }

84 if (typeof temperature !== "number") {

85 throw new Error("temperature must be a number");

86 }

87 if (temperature < 0 || temperature > 2) {

88 throw new Error("temperature must be between 0 and 2");

89 }

90}

91function validateTopP(topP) {

92 if (topP === void 0 || topP === null) {

93 return;

94 }

95 if (typeof topP !== "number") {

96 throw new Error("topP must be a number");

97 }

98 if (topP < 0 || topP > 1) {

99 throw new Error("topP must be between 0 and 1");

100 }

101}

102function validatePrivateKey(key) {

103 if (typeof key !== "string") {

Critical

Wallet Drain

Source uses private key material to transfer cryptocurrency funds.

dist/index.jsView on unpkg · L101

104 throw new Error("Private key must be a string");

105 }

106 if (!key.startsWith("0x")) {

107 throw new Error("Private key must start with 0x");

108 }

109 if (key.length !== 66) {

110 throw new Error(

111 "Private key must be 66 characters (0x + 64 hexadecimal characters)"

112 );

113 }

114 if (!/^0x[0-9a-fA-F]{64}$/.test(key)) {

115 throw new Error(

116 "Private key must contain only hexadecimal characters (0-9, a-f, A-F)"

117 );

118 }

119}

120function validateApiUrl(url) {

121 let parsed;

Lines 14179-14219javascript

14179 }

14180 _apiUrl;

14181 _timeout;

14182 constructor(options = {}) {

14183 this.apiAuth = resolveApiKeyAuth(options);

14184 if (!this.apiAuth) {

14185 const

dist/index.cjsView file

232Trigger-reachable chain: manifest.main -> dist/index.cjs L232: } L233: function validatePrivateKey(key) { L234: if (typeof key !== "string") { ... L259: throw new Error( L260: `Invalid protocol: ${parsed.protocol}. Use http:// or https://` L261: ); ... L330: } L331: const key = options.apiKey ?? (options.privateKey === void 0 && typeof process !== "undefined" ? process.env?.BLOCKRUN_API_KEY : void 0); L332: if (key === void 0) return void 0; ... L397: try { L398: body = await response.json(); L399: } catch {

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

dist/index.cjsView on unpkg · L232

package.jsonView file

Lines 1-74json

2 "name": "@blockrun/llm",

3 "version": "3.24.3",

4 "type": "module",

5 "description": "TypeScript SDK for BlockRun - every frontier model behind one OpenAI-compatible client. Pay with a BlockRun API key or per-call in USDC. Smart routing picks the cheapest capable model. No rate limits.",

Source & flagged code

5 flagged · loading source

dist/index.jsView file

101} L102: function validatePrivateKey(key) { L103: if (typeof key !== "string") { ... L128: throw new Error( L129: `Invalid protocol: ${parsed.protocol}. Use http:// or https://` L130: ); ... L199: } L200: const key = options.apiKey ?? (options.privateKey === void 0 && typeof process !== "undefined" ? process.env?.BLOCKRUN_API_KEY : void 0); L201: if (key === void 0) return void 0; ... L266: try { L267: body = await response.json(); L268: } catch {

Critical

Wallet Drain

Source uses private key material to transfer cryptocurrency funds.

dist/index.jsView on unpkg · L101

14199const { default: Anthropic } = await import("@anthropic-ai/sdk"); this._client = new Anthropic({ baseURL: this._apiUrl, apiKey: "blockrun", fetch: this._x402Fetch.bind(this), /

Low

Suspicious Dependency Evidence

The package declares viem and the Anthropic SDK as runtime dependencies, and the ESM entrypoint loads the Anthropic SDK when that client is used.

dist/index.jsView on unpkg · L14199

dist/index.cjsView file

232

Findings

2 Critical3 Medium7 Low

CriticalWallet Draindist/index.js

CriticalTrigger Reachable Dangerous Capabilitydist/index.cjs

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowSuspicious Lifecycle Evidencepackage.json

LowSuspicious Dependency Evidencepackage.json

LowSuspicious Dependency Evidencedist/index.js

Affected versions and remediation

This report applies to @blockrun/llm@3.24.3.

See all versions of @blockrun/llm for other recorded verdicts.

Review the evidence and your use of @blockrun/llm@3.24.3 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: 2026-10-20 17:25:31.497Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Runtime surface

Behavioral surface

Source & flagged code