MailMolt

MailMolt is a Marketing & Growth tool that provides verified email addresses for AI agents. It enables agents to send, receive, and manage emails via REST, SMTP, or MCP, with human oversight and trust scores.

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At a glance

Pricing

Freemium · Paid · Enterprise

Free tier

Yes

API

Yes

Skill level

Technical

About

What is MailMolt?

MailMolt offers a dedicated email infrastructure for autonomous AI agents, providing each agent with its own verified email address. This platform supports two-way email communication (sending and receiving) through REST API, SMTP, and the Model Context Protocol (MCP) for tools like Claude Code and Cursor. Key differentiators include human-in-the-loop approval queues, per-agent trust scores, a public reputation registry, and prompt-injection scanning for inbound mail. It addresses security and accountability concerns by isolating agent email from human inboxes, ensuring every action is logged and auditable. MailMolt integrates with popular agent frameworks like LangGraph and CrewAI, and provides compliance features like GDPR and HIPAA readiness.

Best used for

Ideal for marketers and small business owners who need to give their AI agents dedicated email identities, manage agent email communications securely, and ensure compliance. Especially valuable for integrating email capabilities into AI agent frameworks like LangGraph and CrewAI, with built-in human oversight.

Common actions

manage AI agent email

automate email communication

integrate email with AI

ensure AI email compliance

Developer Toolsemailartificial intelligence

Capabilities

Key features

Per-agent verified email
REST API
SMTP submission
MCP server
Human-in-the-loop approval
Per-agent trust score
Prompt-injection scanner

Target Audience

marketersmall business owner

Integrations

langgraphcrewaimastraclaude-codecursorsupabaseauth0django+ 1 more

Pricing & Plans

Freemium · Paid · Enterprise

Free during beta.

FAQs

Why do AI agents need their own email address instead of using a human's?

Giving an AI agent access to a personal email creates security, accountability, and auditability risks. A dedicated agent email isolates its communications, allows for specific permission levels, logs every send/receive, and enables human owners to revoke access without affecting their own accounts.

How does MailMolt support human oversight for AI agent emails?

MailMolt includes a human-in-the-loop approval queue, allowing owners to review and approve emails before agents send them. It also assigns per-agent trust scores and provides audit logs for all email activity, ensuring transparency and control over autonomous communications.

Can MailMolt be used to extract 2FA or OTP codes for AI agents?

Yes, an AI agent can sign up for third-party services using its MailMolt address. When verification emails arrive, MailMolt delivers them to the agent's inbox and triggers a webhook. The agent can then extract the code from the email body, keeping OTPs isolated from human inboxes.

What is the difference between MailMolt and generic email APIs like SendGrid?

Unlike generic send-only APIs, MailMolt is agent-first, providing an inbox per agent, two-way communication, an MCP server, a permission ladder, human approval queues, and a public reputation API. It's designed specifically for autonomous AI agent email identity and management.

Does MailMolt offer a free plan for evaluation?

Yes, MailMolt provides a Free tier. It includes one agent per verified owner, 100 sends/day (1,000/month), full inbound email capabilities, webhooks, and the human approval queue, with no credit card required. This tier is ideal for initial evaluation.

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