npm · @meser10/mcp-server
$npx -y @meser10/mcp-server@1.0.2 MESER10_API_KEY (required) · secret — API key issued in the Meser 10 UI under My Account, Advanced settings, API settings.
MESER10_USER_ID — Meser 10 account number. Not a secret. Optional: 17 of the 61 operations authenticate on the key alone, the other 44 need it.
MESER10_MODE — Safety gate: read (default), write, send or destructive. Each level adds tools; send delivers to real recipients and spends credit.
MESER10_MAX_RECIPIENTS — Refuses any single send targeting more addresses than this cap.