AgentMail
Email infrastructure purpose-built for AI agents — programmatic inboxes, send/receive, semantic search, and webhooks.
About
AgentMail is email infrastructure designed from the ground up for AI agents. The tagline says it all: "It's not AI for your email. It's email for your AI." Agents can programmatically create inboxes, send and receive emails, manage threads, handle attachments, perform semantic search across messages, and extract structured data from email content — capabilities that would get an agent banned from Gmail.
AgentMail has been one of the most OpenClaw-friendly services in the ecosystem. They maintain an official MCP server, dedicated OpenClaw integration docs, an OpenClaw skill on playbooks.com, and multiple blog posts comparing AgentMail to Gmail specifically for OpenClaw agent use. The service handles the compliance and deliverability concerns that come with agent-driven email, so agents can send at scale without reputation issues.
Backed by Y Combinator, AgentMail's free tier (Playground) includes 3 inboxes and 3,000 emails per month — enough for testing and small-scale agent workflows. Paid plans start at $20/month for 10 inboxes and 10K emails. Python, TypeScript SDKs, and MCP server are all officially supported.