# How to integrate Sendlane MCP with Hermes

```json
{
  "title": "How to integrate Sendlane MCP with Hermes",
  "toolkit": "Sendlane",
  "toolkit_slug": "sendlane",
  "framework": "Hermes",
  "framework_slug": "hermes-agent",
  "url": "https://composio.dev/toolkits/sendlane/framework/hermes-agent",
  "markdown_url": "https://composio.dev/toolkits/sendlane/framework/hermes-agent.md",
  "updated_at": "2026-05-06T08:27:36.536Z"
}
```

## 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 Sendlane 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 Sendlane with

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

### Integrating Sendlane 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 Sendlane MCP server, and what's possible with it?

The Sendlane MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Sendlane account. It provides structured and secure access to your Sendlane marketing automation tools, so your agent can perform actions like managing custom fields, creating new mailing lists, and streamlining campaign setup on your behalf.
- Retrieve custom fields: Quickly fetch and review all custom fields in your Sendlane account to personalize your marketing and segmentation strategies.
- Create new mailing lists: Direct your agent to set up brand new subscriber lists, making it easy to organize contacts before launching email or SMS campaigns.
- Automate list management: Effortlessly build and maintain your audience lists through AI-driven workflows, minimizing manual effort and reducing errors.
- Simplify campaign preparation: Ensure your agent can gather all required fields and lists before sending targeted email or SMS outreach, enabling smoother campaign launches.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `SENDLANE_GET_CUSTOM_FIELDS` | Get custom fields list | Tool to retrieve a list of custom fields. use when you need to list all custom fields with optional pagination. |
| `SENDLANE_POST_LIST` | Create List | Tool to create a new list. use when you need to add a brand-new mailing list before sending campaigns. |

## Supported Triggers

None listed.

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

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

## Complete Code

None listed.

## Conclusion

### Way Forward
With Sendlane 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 Sendlane MCP Agent with another framework

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

## Related Toolkits

- [Reddit](https://composio.dev/toolkits/reddit) - Reddit is a social news platform with thriving user-driven communities (subreddits). It's the go-to place for discussion, content sharing, and viral marketing.
- [Facebook](https://composio.dev/toolkits/facebook) - Facebook is a social media and advertising platform for businesses and creators. It helps you connect, share, and manage content across your public Facebook Pages.
- [Linkedin](https://composio.dev/toolkits/linkedin) - LinkedIn is a professional networking platform for connecting, sharing content, and engaging with business opportunities. It's the go-to place for building your professional brand and unlocking new career connections.
- [Active campaign](https://composio.dev/toolkits/active_campaign) - ActiveCampaign is a marketing automation and CRM platform for managing email campaigns, sales pipelines, and customer segmentation. It helps businesses engage customers and drive growth through smart automation and targeted outreach.
- [ActiveTrail](https://composio.dev/toolkits/active_trail) - ActiveTrail is a user-friendly email marketing and automation platform. It helps you reach subscribers and automate campaigns with ease.
- [Ahrefs](https://composio.dev/toolkits/ahrefs) - Ahrefs is an SEO and marketing platform for site audits, keyword research, and competitor insights. It helps you improve search rankings and drive organic traffic.
- [Amcards](https://composio.dev/toolkits/amcards) - AMCards lets you create and mail personalized greeting cards online. Build stronger customer relationships with easy, automated card campaigns.
- [Beamer](https://composio.dev/toolkits/beamer) - Beamer is a news and changelog platform for in-app announcements and feature updates. It helps companies boost user engagement by sharing news where users are most active.
- [Benchmark email](https://composio.dev/toolkits/benchmark_email) - Benchmark Email is a platform for creating, sending, and tracking email campaigns. It's built to help you engage audiences and analyze results—all in one place.
- [Bigmailer](https://composio.dev/toolkits/bigmailer) - BigMailer is an email marketing platform for managing multiple brands with white-labeling and automation. It helps teams streamline campaigns and simplify integration with Amazon SES.
- [Brandfetch](https://composio.dev/toolkits/brandfetch) - Brandfetch is an API that delivers company logos, colors, and visual branding assets. It helps marketers and developers keep brand visuals consistent everywhere.
- [Brevo](https://composio.dev/toolkits/brevo) - Brevo is an all-in-one email and SMS marketing platform for transactional messaging, automation, and CRM. It helps businesses engage customers and streamline communications through powerful campaign tools.
- [Campayn](https://composio.dev/toolkits/campayn) - Campayn is an email marketing platform for creating, sending, and managing campaigns. It helps businesses engage contacts and grow audiences with easy-to-use tools.
- [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.
- [Crustdata](https://composio.dev/toolkits/crustdata) - CrustData is an AI-powered data intelligence platform for real-time company and people data. It helps B2B sales teams, AI SDRs, and investors react to live business signals.
- [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.
- [Customerio](https://composio.dev/toolkits/customerio) - Customer.io is a customer engagement platform for targeted messaging across email, SMS, and push. Easily automate, segment, and track communications with your audience.
- [Cutt ly](https://composio.dev/toolkits/cutt_ly) - Cutt.ly is a URL shortening service for managing and analyzing links. Streamline your workflows with quick, trackable, and branded short URLs.
- [Demio](https://composio.dev/toolkits/demio) - Demio is webinar software built for marketers, offering both live and automated sessions with interactive features. It helps teams engage audiences and optimize lead generation through detailed analytics.

## Frequently Asked Questions

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

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

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

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

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