Reddit MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Reddit MCP or direct API to post content, reply to comments, moderate subreddits, and fetch trending discussions through natural language.

Reddit logoReddit
Oauth2

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.

22 Tools

Try Reddit now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
Reddit
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TOOLS

Supported Tools

Every Reddit action and event your agent gets out of the box.

Create a Reddit post

Creates a new text or link post on a specified, existing Reddit subreddit, optionally applying a flair.

Delete Reddit comment

Deletes a Reddit comment, identified by its fullname ID, if it was authored by the authenticated user.

Delete a Reddit post

Permanently and irreversibly deletes a Reddit post by its ID.

Edit comment or post

Edits 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 sort

Tool to retrieve a listing of Reddit posts sorted by the specified criteria (hot, new, top, etc.

Get controversial posts from all subreddits

Tool to retrieve controversial posts from all subreddits with time filters.

Get user preferences

Tool to retrieve preference settings of the logged in user.

Get random Reddit post

Tool to retrieve a random public Reddit post from any subreddit.

Get user information

Retrieves information about a specified Reddit user account, including karma scores and gold status.

Get top posts from subreddit

Tool to retrieve top-rated posts from a subreddit with time filters.

Get OAuth scopes

Tool to retrieve all available OAuth scopes supported by the Reddit API.

Get subreddit rules

Fetch the explicit posting rules for a subreddit to ensure compliance before posting or commenting.

Search subreddits

Tool to search subreddits by title and description.

Get user flair

Fetches the list of user flair assignments for a given subreddit.

Check username availability

Tool to check whether a username is available for registration on Reddit.

List subreddit post flairs

List available link/post flairs for a subreddit (including flair_template_id) so posts can satisfy flair-required validation.

Post a comment

Posts a comment on Reddit, replying to an existing submission (post) or another comment.

Retrieve Comments for a Post

Retrieves all comments for a Reddit post given its base-36 article ID.

Retrieve posts from subreddit

Retrieves posts from a specified, publicly accessible subreddit.

Retrieve specific comment or post

Retrieves detailed information for a single Reddit comment or post using its fullname.

Search across subreddits

Searches Reddit for posts/comments using a query.

Enable or disable inbox replies

Enable or disable inbox replies for a submission or comment.

SETUP GUIDE

Connect Reddit MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["reddit"],
  mcp: true,
});
Create a session scoped to Reddit and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Retrieve the top 5 hot posts from r/technology",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Reddit request
SETUP GUIDE

Connect Reddit API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["reddit"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Reddit
3

Run Reddit tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Retrieve the top 5 hot posts from r/technology" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Reddit tool calls through the session, and print the final answer

Why Use Composio?

AI Native Reddit Integration

  • Supports both Reddit MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, posting, and moderating Reddit content

Managed Auth

  • Built-in OAuth2 handling with automatic token refresh and rotation
  • Central place to manage, scope, and revoke Reddit access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Reddit
  • Scoped, least privilege access to Reddit resources
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

No. Composio provides a managed OAuth app for Reddit, so you sign in with your normal Reddit account and approve access. If you later want the consent screen to show your own company name, you can add your own Reddit OAuth app in the Composio dashboard, and every connection after that uses it.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Reddit connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

When you connect a Reddit account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Reddit as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Exactly the ones Reddit lists on its consent screen when you connect. Review that screen before approving. If you connect a work account, your Reddit administrator may need to approve the app first, and you can revoke the access inside Reddit whenever you want.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Reddit connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

Composio refreshes Reddit tokens automatically, so day to day you do nothing. If you revoke access inside Reddit, or Reddit invalidates the session, the connection shows as expired in Composio and the agent stops acting on that account until you reconnect it, which is a single sign-in.

Composio's free plan includes 100,000 tool calls per month with no credit card, and up to 20,000 of those can run through Composio-managed apps like Reddit. Personal Reddit use rarely gets near that. Paid plans add higher limits and team features, and Reddit's own pricing is unaffected.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Reddit accounts).

With Composio, you connect Reddit once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

Start with Reddit.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Reddit tool your agent needs.Free to start.

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