Reliable email delivery API for developers and marketers | Freemium | - **Email API & SMTP Relay**: Send transactional emails through a REST API or SMTP with official SDKs for Python, Node.js, PHP, Ruby, Java, Go, and C#.
- - **Marketing Campaigns**: Design campaigns with a drag-and-drop editor, automate drip series, segment contacts, and run A/B tests.
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Business email with an AI assistant and agent API | Free tier | - **Mailboxes on your own domain**: Create addresses like hello@, support@ or billing@, each with its own login and storage.
- - **Shared team inboxes**: Your whole team can work the same inbox from one dashboard instead of forwarding mail around. Team members who log in are unlimited on Team and Scale plans.
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Email, calendar and MCP access from your terminal | Freemium | - **Email from the terminal**: Read, search, draft, and send email across supported providers.
- - Calendar management: Work with calendars and events through CLI commands.
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Email inboxes your AI agents can actually own | Freemium | - **Programmatic inbox creation**: Spin up a dedicated inbox for every agent with one API call. No OAuth flow, no Google Workspace seat, no manual provisioning.
- - **Two-way email, not just sending**: Unlike transactional APIs, AgentMail is built around the inbox. Your agent receives replies, keeps threads intact, and handles attachments and drafts.
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All-in-one email platform built for SaaS teams | Free tier | - **Simple Email API**: Send transactional emails with a short, readable code snippet. Developers report going from signup to live sending in about 10 minutes.
- - **SMTP relay**: Switch from an existing provider by changing host, port, and credentials. No code rewrite needed if your app already speaks SMTP.
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Ultra-fast AI inference for real-time apps | Paid | - **LPU inference hardware**: Groq's custom Language Processing Units are built specifically for AI inference, using deterministic execution and on-chip memory to deliver predictable, fast processing.
- - **High-speed inference**: Groq publishes model-specific inference speeds ranging from hundreds to around 1,000 tokens per second on some current models, including 1,000 t/s for GPT-OSS 20B.
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AI answer engine with real-time, cited web research | Free tier | - **Cited answers in real time**: Every response links back to the sources it pulled from, so you can check the claim instead of trusting it blindly.
- - **Pro Search**: Asks clarifying questions and runs multi-step searches before answering, which produces more precise results on complex queries.
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Agent-native email platform for newsletters, transactional sends, and AI-driven workflows. | Freemium | - **Agent-Native MCP Server**: More than 120 tools let AI agents draft, edit, schedule, send, segment, and analyze email the same way a human does in the studio.
- - **Visual Email Designer**: Create newsletters using drag-and-drop blocks, reusable sections, slash commands, and real-time collaboration.
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AI dubbing and voice cloning in 140+ languages | Freemium | - **Dubbing in 140+ languages**: Upload a video or audio file and get a dubbed version that preserves the original voice, prosody, and emotional delivery instead of flattening it into generic narration.
- - **MARS voice cloning**: Clone a voice from roughly 2 to 3 seconds of reference audio, then use that same voice across every target language you publish in.
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