MCP server Claude CodeCodexCursor +2
Email inbox API and outbound sending tools for AI Agents. Runs locally from the sendmux-mcp Python package. Needs 4 environment variables to run.
Plugin Claude Code
Official Sendmux Agent Skills for email, mailbox, MCP, CLI, and SDK workflows.
MCP server Claude CodeCodexCursor +2
MCP server "sendmux", hosted remotely at mcp.sendmux.ai, as configured in Sendmux/skills.
Instructions file CodexOpenCode
AGENTS.md instructions for Sendmux/skills, covering sendmux skills agent guide, rules, layout and publish boundary.
Instructions file
Claude Code instructions for Sendmux/skills, a project described as: Agent skills for Sendmux.
Plugin Claude Code
Official Sendmux Agent Skills for email, mailbox, MCP, CLI, and SDK workflows.
Skill Claude CodeCodex
Use Sendmux attachment workflows without wasting model context on base64. Use when uploading, downloading, reading, forwarding, or sending email attachments through Sendmux MCP, CLI, SDKs, or direct HTTP, especially when choosing filepath vs presigned upload URL vs inline base64, reading inbound attachments with…
Skill Claude CodeCodex
Use the Sendmux command-line interface for terminal-driven Sendmux work. Use when the user wants install commands, profiles, key-scope preflight, --json output, colon-namespaced Sendmux commands, request body/path/query/header flags, or CLI examples for Management, Mailbox, or Sending API operations.
Skill Claude CodeCodex
Design and route Sendmux email workflows for AI agents, including skill installation, self-registration, secure agent credential-bundle storage, owner approval, and runtime email operations. Use when a user wants to give an AI agent its own inbox or email address, let an agent receive/search/triage/reply to mail…
Skill Claude CodeCodex
Sendmux setup, skill installation, API key validation, agent access, secure agent credential-bundle storage, and first-call guidance. Use when the user wants to install Sendmux tooling or skills, check whether an smxroot, smxmbx, or smxagent credential works, choose MCP vs CLI vs SDK, connect an agent to Sendmux…
Skill Claude CodeCodex
Work efficiently with one Sendmux mailbox from an AI agent. Use for reading, searching, counting, syncing, triaging, filing, deleting, threading, or replying from a mailbox with an smxmbx key or scoped smxagent token, especially when the user asks an agent to inspect an inbox, find relevant messages, mark messages, or…
Skill Claude CodeCodex
Manage Sendmux account-level resources with an smxroot key. Use for domains, mailbox provisioning, mailbox API keys, sending accounts, webhooks, billing, spend, delivery logs, incoming logs, metrics, and other team administration tasks; route mailbox reading, triage, sync, and replies to sendmux-mailbox-agent.
Skill Claude CodeCodex
Configure Sendmux Model Context Protocol servers for AI agent clients, using hosted OAuth first when supported and secret-backed local env config otherwise. Use when the user wants to install sendmux-mcp, connect the hosted Sendmux MCP endpoint, run local stdio or HTTP MCP servers, set mailbox/management/sending key…
Skill Claude CodeCodex
Send email with Sendmux, including owner-approved Sending-resource smxagent tokens from claim-token exchange. Use when the user wants to send one email, send multiple emails, choose single vs batch sending, add idempotency keys, include attachments, compare HTTP Sending API vs SMTP, or use Sendmux MCP, CLI, SDK, or…
Skill Claude CodeCodex
Choose the cheapest correct Sendmux surface and call. Use whenever a Sendmux task could be done through MCP, the sendmux CLI, an SDK, or direct HTTP and the user needs low-token, low-round-trip usage: batch sends, mailbox search/count/batch reads, sync deltas, cursor pagination, ETags, conditional requests…