How to integrate Reddit 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 Reddit 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 Reddit 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 Reddit 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 Reddit

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

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

5. Done!

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

The Reddit MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Reddit account. It provides structured and secure access to your Reddit activity, so your agent can perform actions like posting to subreddits, searching for content, retrieving comments, and participating in discussions on your behalf.

  • Automated subreddit posting: Instruct your agent to create new text or link posts in any subreddit you choose, complete with flair options when available.
  • Intelligent Reddit search: Let your agent search across subreddits for posts, comments, or topics matching any keywords, helping you discover relevant discussions instantly.
  • Discussion and comment management: Have your agent post replies, fetch all comments for a specific thread, or even edit and delete your own comments and posts as needed.
  • Subreddit content retrieval: Quickly pull the hottest posts from any public subreddit, making it easy to keep tabs on trending topics without lifting a finger.
  • Flair and metadata handling: Allow your agent to fetch available link flairs for subreddits or retrieve detailed info on specific posts and comments for deeper engagement and organization.

Supported Tools & Triggers

Tools
Create a Reddit postCreates a new text or link post on a specified, existing Reddit subreddit, optionally applying a flair.
Delete Reddit commentDeletes a Reddit comment, identified by its fullname ID, if it was authored by the authenticated user.
Delete a Reddit postPermanently and irreversibly deletes a Reddit post by its ID.
Edit comment or postEdits the body text of the authenticated user's own existing comment or self-post on Reddit; cannot edit link posts or titles.
Get Reddit listing by sortTool to retrieve a listing of Reddit posts sorted by the specified criteria (hot, new, top, etc.
Get controversial posts from all subredditsTool to retrieve controversial posts from all subreddits with time filters.
Get user preferencesTool to retrieve preference settings of the logged in user.
Get random Reddit postTool to retrieve a random public Reddit post from any subreddit.
Get user informationRetrieves information about a specified Reddit user account, including karma scores and gold status.
Get top posts from subredditTool to retrieve top-rated posts from a subreddit with time filters.
Get OAuth scopesTool to retrieve all available OAuth scopes supported by the Reddit API.
Get subreddit rulesFetch the explicit posting rules for a subreddit to ensure compliance before posting or commenting.
Search subredditsTool to search subreddits by title and description.
Get user flairFetches the list of user flair assignments for a given subreddit.
Check username availabilityTool to check whether a username is available for registration on Reddit.
List subreddit post flairsList available link/post flairs for a subreddit (including flair_template_id) so posts can satisfy flair-required validation.
Post a commentPosts a comment on Reddit, replying to an existing submission (post) or another comment.
Retrieve Comments for a PostRetrieves all comments for a Reddit post given its base-36 article ID.
Retrieve posts from subredditRetrieves posts from a specified, publicly accessible subreddit.
Retrieve specific comment or postRetrieves detailed information for a single Reddit comment or post using its fullname.
Search across subredditsSearches Reddit for posts/comments using a query.
Enable or disable inbox repliesEnable or disable inbox replies for a submission or comment.

Way Forward

With Reddit 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.

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FAQ

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

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

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

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

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