About This Site
Sendmux is an email inbox API for AI agents. It gives agents dedicated mailboxes, multi-provider sending, live inbox events, and developer tools so they can send, receive, route, and react to email in production. Sendmux helps developers give AI agents a real email identity. Instead of stitching together a sending API, mailbox provider, parser, webhook layer, and billing system, teams can use one platform for inbound mailboxes, outbound sending, routing, quotas, webhooks, and live inbox events. Agents can receive email in dedicated mailboxes, read messages and threads, process attachments, send replies, and stream inbox activity through Server-Sent Events. Outbound sending supports SMTP, Gmail OAuth, Outlook OAuth, and Sendmux-managed Amazon SES, with delivery groups, weighted routing, per-provider quotas, health checks, and failover. Sendmux is built for AI agent teams, automation agencies, SaaS platforms, and developers building support agents, sales agents, scheduling agents, monitoring agents, and workflow agents. It also includes REST APIs, OpenAPI specs, SDKs, CLI, MCP tools, and Sendmux Skills.
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LocalMode UI - Local-First AI Components
Open-source browser AI components for private, offline applications
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Outter
Outter provides a pre-trained AI engine for fast, profitable AI integration into products.
Outter makes AI simple, fast, and profitable. They offer a pre-trained AI engine that integrates into products quickly, focusing on ROI without needing a full data science team. Outter helps implement high-impact AI features, automate workflows, and boost metrics. They provide AI readiness audits, co-pilots, recommendations, AI for content, bespoke AI solutions, and boutique services. Outter Engine combines proprietary models with third-party scalability, ensuring data security. They offer AI solutions tailored to unique needs, from automation to deep analytics.
Key Features AI
Core Features
Email inbox API for AI agents
Dedicated agent mailboxes
Multi-provider email sending
Managed Amazon SES sending
Per-provider quotas and throttling
Weighted routing and failover
Signed webhooks and SSE events
Mailbox API for threads and attachments
MCP, SDKs, CLI, and Sendmux Skills
Usage-based pricing with no mailbox fees
Advantages
No per-seat or per-mailbox fees
Reduces LLM token consumption by converting HTML to clean JSON
High provider flexibility with automatic failover
Excellent visibility and monitoring tools for multiple mailboxes
缺点：Requires technical setup and integration via API
缺点：Pricing based on usage may be less predictable for extremely high-volume users compared to flat-rate plans
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