How to integrate Reddit MCP with Kimi Code

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How to integrate Reddit MCP with Kimi Code

Kimi Code is Moonshot AI's open-source coding agent, powered by Kimi K2.6. It runs in your terminal, reads and edits code, executes shell commands, and plans multi-step tasks, with native MCP support for extending it to outside tools.

In this guide, I will explain the easiest and most secure way to connect your Reddit account to Kimi Code via Composio Connect, so it can post a weekly update to r/marketing, search for trending posts about AI startups, retrieve comments from your latest Reddit post, and more without ever putting your account credentials at risk.

Also integrate Reddit with

Why use Composio?

Composio provides:

  • Access to 1,000+ managed apps from a single MCP endpoint. This makes it convenient for agents to run cross-app workflows.
  • Managed OAuth. You do not have to worry about authentication and authorization flows for every app.
  • Programmatic tool calling. Allows LLMs to write code in a remote workbench to handle complex tool chaining. This reduces back-and-forth for frequent tool calls.
  • Large tool response handling outside the LLM context. This minimizes context bloat from large tool responses.
  • Dynamic just-in-time access to thousands of tools across hundreds of apps. Composio loads the tools your agent needs, so LLMs are not overwhelmed by tools they do not need.

Connect Reddit to Kimi Code

Kimi Code is a TypeScript agent distributed through npm. It acts as an MCP client and reads server definitions from an mcp.json file, and it can also add and authenticate servers conversationally through /mcp-config. Composio is a remote HTTP server that authenticates with OAuth, so no API key is stored anywhere.

1. Install Kimi Code

The quickest way is the official install script, which requires no pre-installed Node.js and places the kimi executable on your PATH.

bash
# macOS or Linux
curl -fsSL https://code.kimi.com/kimi-code/install.sh | bash

# Windows PowerShell
irm https://code.kimi.com/kimi-code/install.ps1 | iex

# Confirm the installation
kimi --version

2. Log in

Start Kimi Code in your project directory, then sign in from the interactive UI:

bash
kimi

Run /login and choose Kimi Code OAuth using the device-code flow, or use a Moonshot API key.

3. Add Composio with /mcp-config

In current versions of Kimi Code, MCP servers are managed inside the app, not with a shell subcommand. From the interactive UI, run:

bash
/mcp-config
Kimi Code MCP config flow for adding the Composio MCP server

Tell it the server name and URL in plain language. For example:

Server name is Composio, and here is the server URL: https://connect.composio.dev/mcp

Kimi Code asks whether to add it globally, at ~/.kimi-code/mcp.json, or project-local for the current checkout, then writes the entry for you:

bash
{
  "mcpServers": {
    "Composio": {
      "url": "https://connect.composio.dev/mcp"
    }
  }
}

There is no transport field to set. Kimi Code infers HTTP from the url.

4. Restart the session

The new server is picked up on a fresh session, not the current one. Start a new session:

bash
/new

On the new session, Kimi Code detects that the server needs authorization and prompts you to run:

bash
/mcp-config login Composio

5. Authorize with OAuth

Run the command Kimi suggests:

bash
/mcp-config login composio

Kimi Code opens Composio's authorization page or surfaces a URL. Approve access, then return to the session. You should see confirmation that the Composio MCP server is connected.

Composio authorization page for Kimi Code MCP setup

Check the connection status any time with /mcp. Composio should appear as connected with its tools listed.

Kimi Code showing Composio connected after OAuth authorization

Connect your Reddit account

Back in a Kimi Code session, ask the agent to connect to Reddit or give it any Reddit-related task.

For example, ask it to:

  • "Post a weekly update to r/marketing"
  • "Search for trending posts about AI startups"
  • "Retrieve comments from your latest Reddit post"

It will prompt you to authenticate and authorize access to Reddit.

That is it. Composio tools are now available in Kimi Code, and your Reddit account is ready to use.

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.

Conclusion

You have successfully connected Reddit to Kimi Code using Composio Connect. Your agent can now manage Reddit from the terminal with natural language, without exposing credentials in prompts or local scripts.

Since the same Composio endpoint exposes 1,000+ apps, you can add Slack, Calendar, Linear, and more to the same server and chain them into cross-app workflows.

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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 Kimi Code?

Yes, you can. Kimi Code 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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