Karbon MCP Server

Item: Karbon MCP Server
Rating: 62
Author: M8ven

An unofficial Model Context Protocol server that connects MCP-compatible clients to Karbon practice management, enabling natural language interaction with contacts, work items, notes, timesheets, and more.

→ Mad-Man-Dan/karbon-mcp-server · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 3 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.

🔐

You'll be asked for 3 credentials: KARBON_ACCESS_KEY, KARBON_BEARER_TOKEN, KARBON_HTTP_SECRET

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies3 high

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

high@modelcontextprotocol/sdk@1.13.0GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.13.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.13.0GHSA-w48q-cv73-mx4w

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

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

🔐 secretKARBON_ACCESS_KEY— env =your-access-key \

configKARBON_API_BASE_URL— No Override the API base URL (default https://api.karbonhq.com/v3)

🔐 secretKARBON_BEARER_TOKEN— env =your-bearer-token \

🔐 secretKARBON_HTTP_SECRET— KARBON_BEARER_TOKEN=... KARBON_ACCESS_KEY=... =some-long-random-string \

configKARBON_READ_ONLY— No Set to true to disable all create/update tools

configPORT— No HTTP mode only: port to listen on (default 8787; --port wins)

// 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 4 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/mad-man-dan-karbon-mcp-server-stm9xx)](https://m8ven.ai/mcp/mad-man-dan-karbon-mcp-server-stm9xx)

commit: 4641e18b50d8a79a0e965a21e5d4b2700fd0bd19

code hash: b11197eae6d8b17620a80acad02abfe113cf5efebfaae2f061e2a8a118a8d651

verified: 7/15/2026, 8:45:25 AM

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