Maheidem/waha-mcp-server

MCP server for WhatsApp messaging via WAHA REST API

→ Maheidem/waha-mcp-server· npm: @marcos-heidemann/waha-mcp-server· listed on npm

Install from

npm

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings

⚠️

Tool annotations don’t match behaviour

1 read-only tool performs write/delete/exec — whatsapp_download_media (line 103: fs.mkdirSync(MEDIA_DIR, { recursive: true }))

⚠️

Tool descriptions don’t match what handlers do

1 tool describes read intent but its handler mutates — whatsapp_download_media (line 103: fs.mkdirSync(MEDIA_DIR, { recursive: true }))

⚠️

Known vulnerabilities in dependencies: 3 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

⚠️

Tests do not pass

Either the test suite is broken or the code regressed. Either way the published behaviour can’t be verified by the publisher’s own tests.

✅

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.

// required environment variables

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

🔐 secretWAHA_API_KEY— e =your-api-key

configWAHA_API_URL— e =http://your-server:8200/api \

configWAHA_SEND_DELAY_MS— No 1000 Minimum delay (ms) between outbound messages

configWAHA_SESSION— No default WAHA session name

configWAHA_TEST_LEVEL— 3 level3-contact-write.test.ts Sends to an approved test contact (requires =3)

// 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 7 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/marcos-heidemann-waha-mcp-server-1x348m)](https://m8ven.ai/mcp/marcos-heidemann-waha-mcp-server-1x348m)

commit: 92da5fd056fced367d154795af1c1300c5a4df76

code hash: 1f46d0cd52cba491a9b73eb0a37e0f933405cdfaac80ecd92047c160b1d658a0

verified: 4/18/2026, 4:17:58 PM

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