Sendmux Email Inbox API + Sending

{
  "agent_id": "product_mcp",
  "name": "Sendmux Email Inbox API + Sending",
  "url": "https://sendmux.ai",
  "logo": "https://agentery.com/logos/CP-PMPWRX.svg",
  "niche": "agent-email-infrastructure",
  "category": "developer-tools-infra",
  "short_summary": "Provides email infrastructure for AI agents: creating agent mailboxes, receiving/parsing inbound email into clean JSON, sending outbound mail, and routing acro…",
  "task_performed": "Provides email infrastructure for AI agents: creating agent mailboxes, receiving/parsing inbound email into clean JSON, sending outbound mail, and routing across providers with quotas and failover",
  "inputs_accepted": [
    "Inbound emails (raw MIME)",
    "API/SMTP requests",
    "attachments",
    "provider credentials (OAuth/SMTP)"
  ],
  "outputs_produced": [
    "Clean structured JSON of email content (signatures/quotes stripped)",
    "sent emails",
    "delivery events/webhooks",
    "logs",
    "routing decisions"
  ],
  "integrations_available": [
    "Gmail",
    "SendGrid",
    "Mailgun",
    "Resend",
    "Microsoft/Outlook",
    "Postmark",
    "SMTP",
    "HTTP API",
    "MCP",
    "SDK",
    "CLI",
    "webhooks",
    "OAuth"
  ],
  "protocols_or_interfaces": [
    "MCP",
    "API",
    "SDK",
    "webhooks"
  ],
  "industry_fit": [
    "developer tools"
  ],
  "autonomy_level": "infrastructure",
  "human_approval_needed": "unclear",
  "pricing_model": "usage-based",
  "price": {
    "observed": true,
    "billing": "freemium",
    "currency": "USD",
    "lowest_monthly_usd": 7,
    "monthly_usd": 7,
    "headline": "Free tier, then from $7/mo",
    "summary": "Free tier, then from $7/mo. Sendmux offers a free plan, a $7-per-team monthly Pro plan with usage charges, and custom Enterprise pricing.",
    "confidence": "high",
    "source_url": "https://sendmux.ai/pricing/",
    "checked_at": "2026-09-02T05:07:16.922Z",
    "amount": 7,
    "display": "From $7/mo",
    "plans": [
      {
        "name": "Free",
        "price": "$0 / team · mo",
        "period": "month",
        "persona": "free",
        "highlights": [
          "Fixed limits",
          "$1 usage credit",
          "2 mailboxes",
          "1 active team"
        ],
        "price_annual": null
      },
      {
        "name": "Pro",
        "price": "$7 / team · mo + usage",
        "usage": true,
        "period": "month",
        "persona": "pro",
        "highlights": [
          "Unlimited resources",
          "Prepaid usage on top of team fee",
          "No per-seat or per-mailbox fees",
          "Automatic top-ups included"
        ],
        "price_annual": null
      },
      {
        "name": "Enterprise",
        "price": "Custom",
        "period": null,
        "persona": "enterprise",
        "highlights": [
          "Contract pricing",
          "Postpaid usage",
          "Dedicated infrastructure",
          "Priority support and custom SLAs"
        ],
        "price_annual": null
      },
      {
        "name": "Connected outbound usage",
        "price": "$0.50/ 1,000",
        "usage": true,
        "period": "usage",
        "persona": "individual",
        "highlights": [
          "$0.000500 per provider-accepted recipient"
        ],
        "price_annual": null
      },
      {
        "name": "Managed sending usage",
        "price": "$0.75/ 1,000",
        "usage": true,
        "period": "usage",
        "persona": "individual",
        "highlights": [
          "$0.000750 per provider-accepted recipient"
        ],
        "price_annual": null
      },
      {
        "name": "Inbound usage",
        "price": "$0.50/ 1,000",
        "usage": true,
        "period": "usage",
        "persona": "individual",
        "highlights": [
          "$0.000500 per distinct mailbox delivery"
        ],
        "price_annual": null
      },
      {
        "name": "Storage usage",
        "price": "$0.02/ GB · mo",
        "usage": true,
        "period": "usage",
        "persona": "individual",
        "highlights": [
          "Metered across team mailboxes",
          "Per decimal GB-month"
        ],
        "price_annual": null
      }
    ],
    "source": "render+llm"
  },
  "trust_or_rating_signal": [],
  "evidence_quality": "high",
  "entity_type": "infrastructure",
  "regulated_data_suitability": "unclear",
  "evidence_urls": [
    "https://sendmux.ai"
  ],
  "last_checked": "2026-06-19",
  "how_to_connect": {
    "website": "https://sendmux.ai",
    "docs": null,
    "mcp": null,
    "a2a": null,
    "api": null,
    "protocols": [
      "MCP"
    ],
    "note": "Speaks MCP but publishes no endpoint we could verify — check the docs/website."
  },
  "liveness": {
    "probed": true,
    "alive": true,
    "endpoint_kind": "site",
    "latency_ms": 1193,
    "uptime_7d": 1,
    "checked_at": "2026-09-02T02:40:34.626Z",
    "consecutive_failures": 0,
    "status": "alive"
  },
  "price_extras": {
    "free_tier": null,
    "unit_cost": null
  },
  "reported_success": null,
  "feedback": "If you use this listing, call report_outcome afterwards — it sharpens rankings for everyone including you."
}