The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Banger listing page.
All your company email, operated by agents and reviewed by you.
This one directory is the Banger plugin for every agent host that reads the
open plugin layout: Claude Code and Claude Cowork (.claude-plugin/),
Grok Build / Grok Bot (.grok-plugin/), and ChatGPT / Codex
(.codex-plugin/). Each host reads its own manifest; they all share the same
skill and the same hosted MCP server.
banger at https://api.bangermail.com/mcp (Streamable HTTP,
OAuth 2.1 with PKCE and dynamic client registration). Declared in
.mcp.json. The registry descriptor is
server.json (com.bangermail/banger).operate-company-email: how to onboard a workspace, configure a
company domain safely, turn business context into a reviewable email growth
plan, and operate Mailboxes, Journeys, Broadcast, Product email, Approvals,
and Logs with evidence.No hooks, no local processes, no shell commands. Nothing runs on your machine; the plugin only points your agent at the hosted server and teaches it how to use it.
Claude Code:
Grok Build / Grok Bot:
Codex: install Banger from the Codex plugin directory, or add the server directly:
Claude Cowork and ChatGPT install Banger from their plugin directories once it is listed there.
On first use the host opens Banger's authorization page. Sign in, choose the workspace, and approve the scope set shown. Banger never asks for credentials in chat.
https://api.bangermail.com
(MCP over HTTPS plus its OAuth endpoints under /oauth/* and
/.well-known/*).Proprietary. Copyright BangerMail Inc. Use of the hosted service is governed by the Banger Terms of Service.