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QuickBooks Online MCP Server

Provides 55 tools for managing QuickBooks entities like customers, invoices, and bills via any MCP-compatible client, built on Cloudflare Workers with OAuth 2.0 authentication.

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// key findings
⚠️
Known vulnerabilities in dependencies: 7 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// known CVEs in dependencies7 high3 medium21 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.7.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.7.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highhono@4.7.4GHSA-3vhc-576x-3qv4

Hono JWK Auth Middleware has JWT algorithm confusion when JWK lacks "alg" (untrusted header.alg fallback)

highhono@4.7.4GHSA-f67f-6cw9-8mq4

Hono JWT Middleware's JWT Algorithm Confusion via Unsafe Default (HS256) Allows Token Forgery and Auth Bypass

highhono@4.7.4GHSA-m732-5p4w-x69g

Hono Improper Authorization vulnerability

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// full audit trail
The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.
// improvement guidance — verified publishers only
We have 6 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/librechat-ai-quickbooks-online-mcp-qpu5v2)](https://m8ven.ai/mcp/librechat-ai-quickbooks-online-mcp-qpu5v2)
commit: 954a52d824b1d9c5955da90fc9baa4cc88ac2ad0
code hash: 38505019a6bbf5d981f8af62b23a2dd7140ef8040daa5d5f365eca383c55a3e0
verified: 6/10/2026, 11:06:45 AM
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