How to integrate Writer 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 Writer 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 Writer 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 Writer 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 Writer

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

4. Done. You're all set with a new Writer 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 Writer or request any Writer-related task. It will prompt you to authenticate and authorize access.

5. Done!

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

The Writer MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Writer account. It provides structured and secure access to your Writer AI platform, so your agent can perform actions like querying knowledge graphs, generating chat completions, extracting medical concepts, managing files, and orchestrating enterprise AI workflows on your behalf.

  • Conversational AI and content generation: Use your agent to generate chat-based completions and natural language responses using Writer's advanced LLMs.
  • Enterprise knowledge graph management: Create, retrieve, list, or delete knowledge graphs to organize and access structured knowledge within your organization.
  • Automated data extraction from clinical text: Extract medical entities and standardized codes (like SNOMED CT) from unstructured clinical or healthcare text for downstream analysis.
  • Application and model discovery: List available no-code agent applications and LLM models to streamline how your agent selects tools for specific tasks.
  • File management and inspection: Retrieve and review uploaded files, filter by attributes, and manage your enterprise content for further AI-driven actions.

Supported Tools & Triggers

Tools
Ask Question to Knowledge GraphTool to send a question to the knowledge graph and retrieve the answer.
Chat CompletionTool to generate chat-based completions.
Create Knowledge GraphTool to create a new knowledge graph.
Delete GraphTool to delete a knowledge graph by its id.
List ApplicationsTool to list all no-code agent applications.
List FilesTool to list all uploaded files.
List Knowledge GraphsTool to retrieve a list of knowledge graphs.
List ModelsTool to list all available language models.
Medical Text ComprehensionTool to extract medical entities and concepts from unstructured clinical text.
Retrieve Knowledge GraphTool to retrieve a knowledge graph by its id.
Text GenerationTool to generate text based on a given prompt.
Update Knowledge GraphTool to update an existing knowledge graph.
Web SearchTool to perform a web search.

Way Forward

With Writer 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 Writer MCP Agent with another framework

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OpenAI Agents SDK

Use Writer MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Writer MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Writer MCP with Claude Code

Codex logo

Codex

Use Writer MCP with Codex

OpenClaw logo

OpenClaw

Use Writer MCP with OpenClaw

CLI logo

CLI

Use Writer MCP with CLI

Google ADK logo

Google ADK

Use Writer MCP with Google ADK

LangChain logo

LangChain

Use Writer MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Writer MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Writer MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Writer MCP with LlamaIndex

CrewAI logo

CrewAI

Use Writer MCP with CrewAI

FAQ

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

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

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

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

Used by agents from

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Context
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HubSpot
Agent.ai
Altera
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Context
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glean
HubSpot
Agent.ai
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Rolai

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