AgentMail

What is AgentMail?

AgentMail is an email provider built for AI agents rather than one-way notifications. Through an API, SDKs for Node.js/TypeScript and Python, and an MCP server, you can create a dedicated inbox for each agent, send and receive messages, keep replies grouped in threads, and handle attachments, drafts and scheduled sends. Webhooks and WebSockets deliver new mail as it arrives, and extracted_text and extracted_html fields return only the new part of a reply with quoted text removed. You can start on an @agentmail.to address or connect your own custom domains with DKIM, SPF and DMARC. Plans start with a free tier at $0 per month for 3 inboxes and 3,000 emails a month with no credit card, then Developer at $20/month and Startup at $200/month, with custom Enterprise pricing for white-label, EU region and bring-your-own-cloud needs. Add-ons for extra inboxes, domains, sends and seats cost from $2/month.

Use cases

• Give each AI agent its own email inbox
• Let agents reply to customer emails
• Process incoming email with webhooks
• Send email from agents on a custom domain
• Extract only the new content from replies
• Run agent email on a startup budget

Who it's for

• AI developers
• Startups building agents
• Platform teams

Why use AgentMail

• Every agent gets its own address, so conversations stay separate and threads keep their context.
• Webhooks and WebSockets deliver replies in real time, which avoids tight polling loops that hit rate limits.
• Reply extraction returns just the new text, so agents do not have to parse quoted history.
• A free tier needs no credit card, so you can build a prototype before paying.
• Add-ons let you add inboxes, domains, sends or seats without moving to a higher plan.

AgentMail features

• Inbox creation by API
• Threads, labels, drafts and attachments
• Scheduled sending
• Webhooks, WebSockets and signed webhooks
• Node.js/TypeScript and Python SDKs
• MCP server
• Custom domains with DKIM, SPF and DMARC
• Suppression list and optimized shared IPs
• Reply extraction that strips quoted text
• SMTP relay and metrics
• Inbox pods for grouping inboxes
• SOC 2 report on Startup and Enterprise

AgentMail integrations

• Vercel
• Stripe
• MCP
• x402
• Discord

How to get started with AgentMail

1. Sign up in the AgentMail console and pick a plan, starting free with no credit card.
2. Create an inbox with an API call or SDK, using an @agentmail.to address or your own custom domain.
3. Send messages and drafts, and set up a webhook or WebSocket to receive replies in real time.
4. Let your agent read threads, use extracted_text for new content, and reply within the same thread.
5. Monitor usage in the console and upgrade, add add-ons or contact sales as volume grows.

AgentMail limitations

• Free allows 3 inboxes, 100 emails a day and no custom domains
• Free emails include a Sent via AgentMail footer; it is removed on paid plans
• Downgrades and cancellations apply from the close of the billing period, and fees already paid are not refunded
• Dedicated IPs, white-label, EU cloud, bring-your-own-cloud and an SLA are Enterprise only

AgentMail pricing

Yes, AgentMail has a free plan. Paid plans start at $20 per month, according to the official pricing page on 24 Oct 2026.

AgentMail plans

• Free

  $0/month

  • No credit card required
  • 3 inboxes
  • 3,000 emails/month
  • 100 emails/day
  • 3 GB storage

• Developer

  $20/month

  • 10 inboxes
  • 10,000 emails/month
  • 1,000 emails/day
  • 10 GB storage
  • 10 custom domains
  • Email support

• Startup

  $200/month

  • 150 inboxes
  • 15,000 emails/day
  • 1,500 emails/5 minutes
  • 150 custom domains
  • 10 organization seats
  • SOC 2 report

• Enterprise

  Custom

  • Unlimited inboxes available
  • White-label platform
  • EU region cloud
  • BYO cloud deployment
  • Dedicated IPs
  • OIDC/SAML SSO

Plans as listed on the official pricing page on 24 Oct 2026. Prices can change and may vary by country or exclude tax. Check the official pricing page.

AgentMail alternatives

The main AgentMail alternatives listed on Debuly are Zep, Courier, Arcade, E2B, Firecrawl and IBM watsonx.ai. The table compares pricing and platforms; order is A–Z.

1. 

   Arcade

   Actions runtime that lets AI agents call tools in Gmail, Slack, Salesforce and more under each user's own permissions.

   Developer platformsAutomation and agents
   FreemiumVisit Arcade (official site)
2. 

   Courier

   Notification and customer messaging platform with one API for email, SMS, push, chat apps and an in-app inbox.

   Developer platformsAutomation and agents
   FreemiumVisit Courier (official site)
3. 

   E2B

   Cloud sandboxes where AI agents run code safely, with Python and JavaScript SDKs and per-second usage billing.

   Developer platformsAutomation and agentsCoding
   FreemiumVisit E2B (official site)
4. 

   Firecrawl

   Web data API for AI agents: search, scrape, crawl and interact with websites and get clean content back, with a free tier.

   Developer platformsResearch and searchAutomation and agents
   FreemiumVisit Firecrawl (official site)
5. 

   IBM watsonx.ai

   IBM's AI development studio for building generative AI apps and agents with foundation models, prompt tools, and machine learning, billed by usage.

   Developer platformsCodingAutomation and agents
   FreemiumVisit IBM watsonx.ai (official site)
6. 

   Zep

   Managed memory and context platform for AI agents, built on the Graphiti knowledge graph, with Python, TypeScript and Go SDKs.

   Developer platformsAutomation and agents
   FreemiumVisit Zep (official site)

AgentMail FAQ

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

Image credits

• Logo: from agentmail.to · fetched 23 Oct 2026 · Vendor trademark, used only to identify the product; removed on request
• Cover: none collected yet, so a generated tile is shown.

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