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WhatsApp MCP Server

An MCP server that connects Claude and other LLM clients to WhatsApp via the Baileys library. Enables sending and receiving messages, listing chats, downloading media, and more.

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// key findings
🚨
Known vulnerabilities in dependencies: 1 critical, 2 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
// known CVEs in dependencies1 critical2 high

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

critical@whiskeysockets/baileys@7.0.0-rc.9GHSA-qvv5-jq5g-4cgg

Baileys has message upsert / hist sync spoofing and app state corruption when using maliciously crafted protocolMessage payload

high@modelcontextprotocol/sdk@1.6.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.6.1GHSA-w48q-cv73-mx4w

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

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// required environment variables
This server reads these from process.env. You'll be asked to provide them before it can run.
configWHATSAPP_AUTH_DIR— ~/.whatsapp-mcp/auth Directory for session persistence
configWHATSAPP_DEVICE_NAME— (unset) Optional linked-device label shown in WhatsApp ("Linked devices"), e.g. WHATSAPP_DEVICE_NAME=MyAgent-1 (will show like MyAgent-1 (Mac OS) or ... (Ubuntu)).
configWHATSAPP_EXIT_AFTER_PAIR— auto If a QR code was shown in this run, exit automatically after successful pairing. Defaults to enabled only for interactive terminal runs (TTY).
configWHATSAPP_HTTP_HOST— WHATSAPP_MCP_TRANSPORT=http =127.0.0.1 WHATSAPP_HTTP_PORT=8787 WHATSAPP_HTTP_PATH=/mcp node dist/index.js
configWHATSAPP_HTTP_PATH— WHATSAPP_MCP_TRANSPORT=http WHATSAPP_HTTP_HOST=127.0.0.1 WHATSAPP_HTTP_PORT=8787 =/mcp node dist/index.js
configWHATSAPP_HTTP_PORT— WHATSAPP_MCP_TRANSPORT=http WHATSAPP_HTTP_HOST=127.0.0.1 =8787 WHATSAPP_HTTP_PATH=/mcp node dist/index.js
configWHATSAPP_MAX_MESSAGES_PER_CHAT— 200 Retention limit per chat for the local message store.
configWHATSAPP_MAX_MESSAGES_TOTAL— 2000 Global retention limit for the local message store.
configWHATSAPP_MCP_TRANSPORT— http WHATSAPP_HTTP_HOST=127.0.0.1 WHATSAPP_HTTP_PORT=8787 WHATSAPP_HTTP_PATH=/mcp node dist/index.js
configWHATSAPP_PERSIST_MESSAGES— false Persist the local message store to disk (message-store.json).
configWHATSAPP_RELINK— (unset) Force re-linking in non-interactive environments. Use backup (or 1/true) to move the existing auth dir aside, or delete to remove it.
configWHATSAPP_SIGNAL_ERROR_THRESHOLD
configWHATSAPP_SIGNAL_ERROR_WINDOW_MS
configWHATSAPP_UPLOAD_DIR— /tmp/whatsapp-uploads Directory for uploaded files (HTTP mode).
configWHATSAPP_UPLOAD_MAX_SIZE— 52428800 Max upload file size in bytes (default: 50 MB).
// 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/ydmw74-whatsapp-mcp-server-oolj85)](https://m8ven.ai/mcp/ydmw74-whatsapp-mcp-server-oolj85)
commit: 57cb1da573ed68733eacad5c9fe651f7b6344d05
code hash: 7e5ed59c59da17aed7333368c569595337a1e85079fe33397a165e9feb6f9547
verified: 6/23/2026, 10:06:43 AM
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