How to integrate Emailable MCP with Hermes

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Introduction

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows.

This guide explains the easiest and most robust way to connect your Emailable account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

Also integrate Emailable with

What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,000+ applications directly into their agent harness — including Hermes. It can:

  • Search and load tools from relevant toolkits on-demand, reducing context usage.
  • Chain multiple tools to accomplish complex workflows via a remote workbench, without excessive back-and-forth with the LLM.
  • Manage app authentication end-to-end with zero manual overhead.

Integrating Emailable with Hermes

Using Composio Connect CLI

1. Install the Composio CLI

Run the install script directly, or paste https://composio.dev/hermes into your Hermes chat box to have it installed for you.

bash
curl -fsSL https://composio.dev/install | bash
Hermes authenticating with Composio

2. Authenticate

Once the CLI is installed, ask Hermes to authenticate with Composio.

3. Connect to Emailable

Ask your agent to connect to Emailable, or simply request any Emailable-related task. Hermes will prompt you to authenticate and authorize access.

4. Done. You're all set with a new Emailable connection.

Using Composio Connect MCP

1. Get your MCP URL and API Key

Go to dashboard.composio.dev and copy your Connect MCP URL and API key.

Copy MCP URL and API key from Composio dashboard

2. Open the Hermes config file

bash
nano ~/.hermes/config.yaml

3. Add the Composio Connect MCP server

bash
mcp_servers:
  composio:
    url: "https://connect.composio.dev/mcp"
    headers:
      x-consumer-api-key: "YOUR_COMPOSIO_API_KEY"
    connect_timeout: 60
    timeout: 180

Save with Ctrl + O, Enter, then exit with Ctrl + X.

4. Restart your Hermes agent

Once restarted, ask your agent to connect to Emailable or request any Emailable-related task. It will prompt you to authenticate and authorize access.

5. Done!

What is the Emailable MCP server, and what's possible with it?

The Emailable MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Emailable account. It provides structured and secure access to your email verification services, so your agent can perform actions like real-time email validation, bulk batch checks, account monitoring, and verification status tracking on your behalf.

  • Instant email address verification: Ask your agent to check if a single email address is valid, risky, or deliverable before you send that important message.
  • Bulk batch email validation: Have the agent verify thousands of email addresses at once for newsletters, campaigns, or CRM imports, ensuring high deliverability rates.
  • Batch job status monitoring: Let your agent track the progress and results of ongoing or completed batch verification jobs for timely follow-up actions.
  • Account status and credit checks: Retrieve your Emailable account details, including owner info and available credits, to make sure you never run out of verification capacity.
  • Seamless OAuth onboarding: Initiate the OAuth flow to securely grant your agent access to Emailable whenever needed, all without manual credential handling.

Supported Tools & Triggers

Tools
Get Account InfoTool to retrieve account information including owner email and available credits.
Get Batch StatusTool to get the status and results of a batch verification job.
Initiate OAuth AuthorizationTool to initiate oauth 2.
Verify Batch EmailsTool to verify a batch of up to 50,000 email addresses.
Verify EmailTool to verify a single email address and return detailed results.

Way Forward

With Emailable connected, Hermes can now act on your behalf whenever it detects a relevant task or you ask it to.

From here, you can extend Hermes further:

  • Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup. Each new integration compounds what Hermes can do for you.
  • Build workflows across tools: Once multiple apps are connected, Hermes can chain actions together — turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
  • Let it learn your patterns: The more you use Hermes, the better it gets at anticipating how you'd handle recurring tasks. Give it feedback on drafts and decisions, and it will adapt.

If you run into trouble or want to share what you've built, join the community or check out the Docs for deeper configuration options.

How to build Emailable MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Emailable MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Emailable MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Emailable MCP with Claude Code

Codex logo

Codex

Use Emailable MCP with Codex

OpenClaw logo

OpenClaw

Use Emailable MCP with OpenClaw

CLI logo

CLI

Use Emailable MCP with CLI

Google ADK logo

Google ADK

Use Emailable MCP with Google ADK

LangChain logo

LangChain

Use Emailable MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Emailable MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Emailable MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Emailable MCP with LlamaIndex

CrewAI logo

CrewAI

Use Emailable MCP with CrewAI

FAQ

What are the differences in Tool Router MCP and Emailable MCP?

With a standalone Emailable MCP server, the agents and LLMs can only access a fixed set of Emailable tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Emailable and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Hermes?

Yes, you can. Hermes fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Emailable tools.

Can I manage the permissions and scopes for Emailable while using Tool Router?

Yes, absolutely. You can configure which Emailable scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Emailable data and credentials are handled as safely as possible.

Used by agents from

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Context
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glean
HubSpot
Agent.ai
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Context
Letta
glean
HubSpot
Agent.ai
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