ReplyLayer

ai.replylayerv0.15.1Updated Oct 1, 2026

Safe email for AI agents: a mailbox with inbound scanning, outbound checks and human review.

VerifiedStreamable HTTPWeb executableSecurity & MonitoringCommunication & Collaboration

Overview

AI-generated overview

Gives an assistant a dedicated email mailbox with inbound scanning, outbound checks and human review before messages go out.

What it does
ReplyLayer provides AI agents with their own email mailbox. According to the description, it scans inbound mail, checks outbound messages, and routes them through human review. The manifest does not list individual tools, so the exact operations are not documented here.
When to use it
Consider it when an assistant needs to send or receive email on its own but you want a safety layer around that traffic, such as scanning incoming messages and holding outgoing ones for human approval.
Requirements
Either the remote endpoint or the local npm package run with npx. The remote endpoint requires an Authorization header with a Bearer ReplyLayer API key; the local package can use the REPLYLAYER_API_KEY environment variable, which is optional if the init command has stored the key locally. An agent key is created in the ReplyLayer dashboard.
Before you install
The service handles email, so messages and their contents pass through ReplyLayer and are shared with that third party. Credentials are involved: the Authorization header and REPLYLAYER_API_KEY hold a live API key, and the local init command stores that key on the machine. Outbound sending is a write action, though the description says human review is part of the flow.

Installation

In SourceWeft

  1. Open ReplyLayer in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "replylayer": {
      "type": "http",
      "url": "https://api.replylayer.ai/v1/mcp"
    }
  }
}

Tools

0
Tool metadata has not been indexed yet.

Version history

1
  1. v0.15.1LatestOct 1, 2026