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.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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ydmw74
Source: Glama
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The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Baileys has message upsert / hist sync spoofing and app state corruption when using maliciously crafted protocolMessage payload
WHATSAPP_AUTH_DIR~/.whatsapp-mcp/auth Directory for session persistenceWHATSAPP_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)).WHATSAPP_EXIT_AFTER_PAIRauto If a QR code was shown in this run, exit automatically after successful pairing. Defaults to enabled only for interactive terminal runs (TTY).WHATSAPP_HTTP_HOSTWHATSAPP_MCP_TRANSPORT=http =127.0.0.1 WHATSAPP_HTTP_PORT=8787 WHATSAPP_HTTP_PATH=/mcp node dist/index.jsWHATSAPP_HTTP_PATHWHATSAPP_MCP_TRANSPORT=http WHATSAPP_HTTP_HOST=127.0.0.1 WHATSAPP_HTTP_PORT=8787 =/mcp node dist/index.jsWHATSAPP_HTTP_PORTWHATSAPP_MCP_TRANSPORT=http WHATSAPP_HTTP_HOST=127.0.0.1 =8787 WHATSAPP_HTTP_PATH=/mcp node dist/index.jsWHATSAPP_MAX_MESSAGES_PER_CHAT200 Retention limit per chat for the local message store.WHATSAPP_MAX_MESSAGES_TOTAL2000 Global retention limit for the local message store.WHATSAPP_MCP_TRANSPORThttp WHATSAPP_HTTP_HOST=127.0.0.1 WHATSAPP_HTTP_PORT=8787 WHATSAPP_HTTP_PATH=/mcp node dist/index.jsWHATSAPP_PERSIST_MESSAGESfalse Persist the local message store to disk (message-store.json).WHATSAPP_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.WHATSAPP_SIGNAL_ERROR_THRESHOLDWHATSAPP_SIGNAL_ERROR_WINDOW_MSWHATSAPP_UPLOAD_DIR/tmp/whatsapp-uploads Directory for uploaded files (HTTP mode).WHATSAPP_UPLOAD_MAX_SIZE52428800 Max upload file size in bytes (default: 50 MB).Tool inputs are validated
Only 0/8 tool handlers declare input schemas (0%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tests exist
No test files found
Add tests that exercise each declared tool.
Secrets not logged
3 secret values sent to console.log
Redact or omit secret values from log output.
Production dependencies are patched
1 critical, 0 high severity in production deps — @whiskeysockets/baileys@6.7.21 (critical)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Dependency freshness
1/5 production deps stale: qrcode-terminal@2022-06-25 (4.2y)
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