# How to integrate Hunter MCP with Hermes

```json
{
  "title": "How to integrate Hunter MCP with Hermes",
  "toolkit": "Hunter",
  "toolkit_slug": "hunter",
  "framework": "Hermes",
  "framework_slug": "hermes-agent",
  "url": "https://composio.dev/toolkits/hunter/framework/hermes-agent",
  "markdown_url": "https://composio.dev/toolkits/hunter/framework/hermes-agent.md",
  "updated_at": "2026-05-06T08:16:00.266Z"
}
```

## 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 Hunter 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 Hunter with

- [OpenAI Agents SDK](https://composio.dev/toolkits/hunter/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/hunter/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/hunter/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/hunter/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/hunter/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/hunter/framework/openclaw)
- [CLI](https://composio.dev/toolkits/hunter/framework/cli)
- [Google ADK](https://composio.dev/toolkits/hunter/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/hunter/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/hunter/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/hunter/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/hunter/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/hunter/framework/crew-ai)

## TL;DR

### 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.

## Connect Hunter to Hermes

### Integrating Hunter 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
```

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

The Hunter MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Hunter account. It provides structured and secure access to your lead generation and enrichment tools, so your agent can perform actions like finding emails, enriching company data, managing leads, and organizing leads lists on your behalf.
- Email discovery and search: Instantly ask your agent to find all public email addresses for a given company or domain, complete with metadata to fuel your outreach and marketing campaigns.
- Smart lead creation and management: Let your agent add new leads, update lead details, or delete outdated entries to keep your Hunter account organized and up-to-date.
- Company and contact enrichment: Have the agent fetch detailed company profiles or use the Email Finder to infer the best contact email for a specific person at a target company.
- Leads list organization: Direct your agent to create, update, or remove custom leads lists—making it easy to segment prospects for personalized marketing or sales workflows.
- Custom attribute management: Empower your agent to create or delete custom lead attributes, tailoring your CRM data fields to match your unique business needs.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `HUNTER_ACCOUNT_INFORMATION` | Account Information | Tool to retrieve information about your hunter account. use when you need to check your plan details and usage limits after confirming credentials. |
| `HUNTER_COMPANY_ENRICHMENT` | Company Enrichment | Tool to get enrichment information for a company by its domain. use when you need full company details (industry, description, location, metrics) from hunter. |
| `HUNTER_CREATE_CUSTOM_ATTRIBUTE` | Create custom lead attribute | Tool to create a new custom lead attribute in your account. use after deciding on the attribute label. |
| `HUNTER_CREATE_LEAD` | Create Lead | Tool to create a new lead. use after gathering all prospect details to save them to your hunter account. |
| `HUNTER_CREATE_LEADS_LIST` | Create Leads List | Tool to create a new leads list. use when you need to organize leads into a custom list before adding leads. |
| `HUNTER_DELETE_CUSTOM_ATTRIBUTE` | Delete Custom Attribute | Tool to delete an existing custom attribute. use after confirming the attribute id to be removed. |
| `HUNTER_DELETE_LEAD` | Delete Lead | Tool to delete a lead. use after confirming the lead's id to remove it from your hunter.io account. |
| `HUNTER_DELETE_LEADS_LIST` | Delete Leads List | Tool to delete a leads list by its id. use after confirming the leads list id to remove it from your hunter.io account. |
| `HUNTER_DOMAIN_SEARCH` | Domain Search | Tool to search all email addresses for a given domain or company. use when you need public emails and metadata for outreach or enrichment. |
| `HUNTER_EMAIL_FINDER` | Email Finder | Tool to find the most likely email address for a person at a domain or company. use when you have a person's name and a domain or company and need to infer their email. |
| `HUNTER_EMAIL_VERIFIER` | Email Verifier | Tool to verify the deliverability of an email address. use when you need to ensure an address is valid and reachable. |
| `HUNTER_GET_CUSTOM_ATTRIBUTE` | Get Custom Attribute | Tool to retrieve details of a specific custom attribute. use when you need the label and slug for an attribute id. |
| `HUNTER_GET_LEAD` | Get Lead | Tool to retrieve details of a specific lead by id. use after confirming the lead's id to fetch its full record. |
| `HUNTER_GET_LEADS_LIST` | Get Leads List | Tool to retrieve details of a specific leads list by id. use when you need to inspect the contents of an existing leads list. |
| `HUNTER_LIST_CUSTOM_ATTRIBUTES` | List Custom Attributes | Tool to list all custom lead attributes in your account. use when you need to retrieve your account's custom lead attributes after authenticating. |
| `HUNTER_LIST_LEADS` | List Leads | Tool to list all leads saved in your account with optional filters. use when you need to retrieve leads with specific criteria after confirming your api key. |
| `HUNTER_LIST_LEADS_LISTS` | List Leads Lists | Tool to list all leads lists in your account. use when you need to retrieve and paginate through your leads lists. |
| `HUNTER_UPDATE_CUSTOM_ATTRIBUTE` | Update Custom Attribute | Tool to update an existing custom attribute's label. use when renaming a custom attribute after creation. |
| `HUNTER_UPDATE_LEAD` | Update Lead | Tool to update details of an existing lead by id. use when you need to modify saved lead attributes after creation. |
| `HUNTER_UPDATE_LEADS_LIST` | Update Leads List | Tool to update the name of a specific leads list. use when renaming an existing leads list. |
| `HUNTER_UPSERT_LEAD` | Upsert Lead | Tool to create or update a lead by email in one call. use when you want to ensure a lead exists with the provided information without checking its existence first. |

## Supported Triggers

None listed.

## Creating MCP Server - Stand-alone vs Composio SDK

The Hunter MCP server provides comprehensive access to Hunter operations through Composio. Once connected, Hermes can perform all major Hunter actions on your behalf using natural language commands.

## Complete Code

None listed.

## Conclusion

### Way Forward
With Hunter 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](https://discord.com/invite/composio) or check out the [Docs](https://docs.composio.dev?utm_source=toolkits&utm_medium=framework_template&utm_campaign=hermes&utm_content=docs) for deeper configuration options.

## How to build Hunter MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/hunter/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/hunter/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/hunter/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/hunter/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/hunter/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/hunter/framework/openclaw)
- [CLI](https://composio.dev/toolkits/hunter/framework/cli)
- [Google ADK](https://composio.dev/toolkits/hunter/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/hunter/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/hunter/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/hunter/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/hunter/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/hunter/framework/crew-ai)

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- [Cardly](https://composio.dev/toolkits/cardly) - Cardly is a platform for creating and sending personalized direct mail to customers. It helps businesses break through the digital clutter by getting real engagement via physical mailboxes.
- [ClickSend](https://composio.dev/toolkits/clicksend) - ClickSend is a cloud-based SMS and email marketing platform for businesses. It streamlines communication by enabling quick message delivery and contact management.
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- [Curated](https://composio.dev/toolkits/curated) - Curated is a platform for collecting, curating, and publishing newsletters. It streamlines content aggregation and distribution for creators and teams.
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## Frequently Asked Questions

### What are the differences in Tool Router MCP and Hunter MCP?

With a standalone Hunter MCP server, the agents and LLMs can only access a fixed set of Hunter tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Hunter 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 Hunter tools.

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

Yes, absolutely. You can configure which Hunter 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 Hunter data and credentials are handled as safely as possible.

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