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This report summarizes scanner evidence for firecrawl/firecrawl-mcp-server, a JavaScript project with 7,581 GitHub stars. SynthScan examined 24,116 lines of code across 55 source files, recording 44 pattern matches distributed across 3 syntactic categories. The legacy adjusted pattern signal is 4.3 (Low pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Can maintainers explain intent, assumptions, and trade-offs? 31 finding(s).
Are imports declared and package/API names verified? 13 finding(s).
Are wrappers, guards, and repeated structures necessary? 29 finding(s).
Which changes need focused human review? 44 finding(s).
This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 44 distinct pattern matches across 3 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| HIGH | README.md | 89 | env FIRECRAWL_API_KEY=fc-YOUR_API_KEY npx -y firecrawl-mcp | CODE |
| HIGH | README.md | 118 | "FIRECRAWL_API_KEY": "YOUR-API-KEY" | CODE |
| HIGH⚡ | README.md | 133 | - Command: `env FIRECRAWL_API_KEY=your-api-key npx -y firecrawl-mcp` | CODE |
| HIGH⚡ | README.md | 135 | > If you are using Windows and are running into issues, try `cmd /c "set FIRECRAWL_API_KEY=your-api-key && npx -y firecr | CODE |
| HIGH⚡ | README.md | 137 | Replace `your-api-key` with your Firecrawl API key. If you don't have one yet, you can create an account and get it from | CODE |
| HIGH | README.md | 152 | "FIRECRAWL_API_KEY": "YOUR_API_KEY" | CODE |
| HIGH | README.md | 164 | env HTTP_STREAMABLE_SERVER=true FIRECRAWL_API_KEY=fc-YOUR_API_KEY npx -y firecrawl-mcp | CODE |
| HIGH | README.md | 176 | docker run -i --rm -e FIRECRAWL_API_KEY=fc-YOUR_API_KEY ghcr.io/firecrawl/firecrawl-mcp-server:latest | CODE |
| HIGH | README.md | 186 | "FIRECRAWL_API_KEY": "YOUR_API_KEY" | CODE |
| HIGH | README.md | 198 | -e FIRECRAWL_API_KEY=fc-YOUR_API_KEY \ | CODE |
| HIGH | README.md | 313 | export FIRECRAWL_API_KEY=your-api-key | CODE |
| HIGH | README.md | 323 | export FIRECRAWL_API_KEY=your-api-key # If your instance requires auth | CODE |
| HIGH | src/recovery.ts | 56 | return `Fix: Create an API key at ${signupUrl} and then:\n- Set the header: Authorization: Bearer YOUR_API_KEY on http | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | src/alexandria-feedback.ts | 83 | export function alexandriaCallsWarrantFeedback( | CODE |
| LOW | src/recovery.ts | 69 | function connectionRecoveryPayload(params: { | CODE |
| LOW | src/recovery.ts | 82 | export function invalidApiKeyRecoveryPayload(): Record<string, unknown> & { | CODE |
| LOW | src/recovery.ts | 92 | export function invalidOAuthRecoveryPayload(): Record<string, unknown> & { | CODE |
| LOW | src/recovery.ts | 122 | function isCoreCredentialRejection( | CODE |
| LOW | src/server.ts | 1236 | function buildContinuationArguments( | CODE |
| LOW | src/server.ts | 1924 | async function waitForCrawlCompletionWithOrigin( | CODE |
| LOW | src/server.ts | 2135 | function alexandriaFeedbackAvailable(): boolean { | CODE |
| LOW | src/tool-helpers.ts | 82 | export function searchDomainsAreExclusive(args: { | CODE |
| LOW | src/service/search-surface.ts | 35 | function searchSurfaceScrapeDescription(safeMode: boolean): string { | CODE |
| LOW | src/service/search-surface.ts | 52 | function registerMarketplaceSearchTool( | CODE |
| LOW | src/service/www-authenticate.ts | 1 | export function escapeWWWAuthenticateValue(value: string): string { | CODE |
| LOW | src/service/auth.ts | 54 | function isFirecrawlOAuthAccessToken(token: string): boolean { | CODE |
| LOW | src/service/auth.ts | 62 | function requestShouldReceiveOAuthChallenge( | CODE |
| LOW | src/service/auth.ts | 83 | function getOAuthProtectedResourceMetadataUrl(profile: ServerProfile): string { | CODE |
| LOW | src/service/auth.ts | 89 | function createOAuthChallengeResponse( | CODE |
| LOW | src/service/auth.ts | 130 | function createInvalidCredentialResponse(_error: InvalidFirecrawlCredentialError): Response { | CODE |
| LOW | src/service/auth.ts | 145 | function createInvalidOAuthRecoveryResponse( | CODE |
| LOW | src/service/auth.ts | 177 | function createCredentialValidationUnavailableResponse( | CODE |
| LOW | src/service/auth.ts | 189 | function getOAuthIntrospectionEndpoint(): string { | CODE |
| LOW | src/service/auth.ts | 193 | function getOAuthIntrospectionSecret(): string | undefined { | CODE |
| LOW | src/service/auth.ts | 421 | async function resolveCredentialFromHeaders( | CODE |
| LOW | src/service/auth.ts | 600 | function emitSearchCompanionAuthTelemetry( | CODE |
| LOW | src/service/auth.ts | 633 | export function createServiceAuthenticate( | CODE |
| LOW | src/service/auth.ts | 637 | return function authenticateWithOAuthChallenge( | CODE |
| LOW | src/service/session-credential.ts | 77 | export function credentialValidationUnavailable( | CODE |
| LOW | src/service/session-credential.ts | 120 | export function requireDelegatedCredentialSigning(resource?: string): void { | CODE |
| LOW | src/service/session-credential.ts | 149 | export function hasManagedOAuthCredential( | CODE |
| LOW | src/service/session-credential.ts | 155 | export function credentialForOutboundRequest( | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | src/legacy/index.md | 721 | // /** | COMMENT |
| LOW | src/legacy/index.md | 741 | /** | COMMENT |