CallZero MCP Server

Enables AI assistants to make phone calls via CallZero service, with tools for call management, templates, and memory.

→ CallZero-ai/CallZero-MCP · 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 1 credential: CALLZERO_API_KEY

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

// required environment variables

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

🔐 secretCALLZERO_API_KEY— "": "callzero_your_api_key_here"

configCALLZERO_API_URL— (optional): Override API base URL for development

// 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 2 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/callzero-ai-callzero-mcp-obchs2)](https://m8ven.ai/mcp/callzero-ai-callzero-mcp-obchs2)

commit: 79dd163fa1d39743b33aadae31fb5a99350f3eb4

code hash: 65ad7326fe6e536913a17efde0e9c2b00d37fee71960bcb30f3196decd69f712

verified: 6/21/2026, 10:48:26 AM

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