Connect
Optimize
Secure
Live 57 Actions
Reddit MCP Server
for AI Agents
Connect your AI agent to StackOne's Reddit MCP server and give it 57 MCP tools out of the box. Auth, tool execution, and security all managed.
Reddit MCP Server
Built by 
StackOne
StackOne 
Coverage
57 Agent Actions
Create, read, update, and delete across Reddit — and extend your agent's capabilities with custom actions.
Authentication
Agent Tool Authentication
Per-user OAuth in one call. Your Reddit MCP server gets session-scoped tokens with zero credentials stored on your infra.
Agent Auth →
Security
Agent Protection
Every Reddit tool response scanned for prompt injection in milliseconds — 88.7% accuracy, all running on CPU.
Prompt Injection Defense →
Performance
Max Agent Context. Min Cost.
Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every Reddit call.
Tools Discovery →What is the Reddit MCP Server?
A Reddit MCP server lets AI agents read and write Reddit data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's Reddit MCP server ships with 57 pre-built actions, fully extensible via the Connector Builder — plus managed authentication, prompt injection defense, observability, and agent execution runtime. Connect it from MCP clients like Claude Desktop, Claude Code, Cursor, Goose, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.
All Reddit MCP Tools
Every action from Reddit's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.
My Preferences
- Get My Preferences
Return the authenticated user's preferences object.
- Update My Preferences
Patch one or more preference fields for the authenticated user.
Posts
- Get Post
Fetch a single post together with its comment tree by base36 id.
- Delete Post
Delete a post (or comment) owned by the authenticated user.
Wiki Pages
- List Wiki Pages
List every wiki page name in a subreddit.
- Get Wiki Page
Get the rendered content of a specific subreddit wiki page.
Other (51)
- Get Me
Get the identity and profile of the authenticated Reddit user.
- Get My Karma
Return a per-subreddit karma breakdown for the authenticated user.
- Get My Trophies
Return the list of trophies awarded to the authenticated user.
- List My Friends
List Redditors the authenticated user has added as friends.
- List Subreddit Comments
List the most recent comments posted in a subreddit.
- List Post Comments
Fetch a post together with its threaded comment tree.
- Get More Children
Expand a `more` stub from a comment tree.
- List Inbox
List all items in the authenticated user's inbox (messages, replies, mentions).
- List Unread Messages
List only the unread items in the authenticated user's inbox.
- List Sent Messages
List private messages the authenticated user has sent.
- Get Unread Count
Return the number of unread items in the authenticated user's inbox.
- List Mod Queue
List reported and spam-filtered items awaiting moderator review in a subreddit.
- List Hot Posts
List hot posts from the authenticated user's front page.
- List New Posts
List newest posts on the authenticated user's front page.
- List Top Posts
List top-scoring posts on the user's front page within a time window.
- Search All Of Reddit
Full-text search across all of Reddit's posts, subreddits, and users.
- Search Within Subreddit
Full-text search scoped to one subreddit.
- Search Users
Search for Redditors by username and profile content.
- Get Subreddit About
Get metadata and community attributes for one subreddit.
- Get Subreddit Rules
Get the published community rules for a subreddit.
- List Subreddit Hot Posts
List posts ranked by the `hot` algorithm within a specific subreddit.
- List Subreddit New Posts
List the newest posts within a specific subreddit (chronological).
- List My Subscribed Subreddits
List subreddits the authenticated user is subscribed to.
- List My Moderated Subreddits
List subreddits the authenticated user is a moderator of.
- List Popular Subreddits
List the most popular public subreddits site-wide.
- Search Subreddits
Search subreddits by name, title, and description.
- Get User About
Get a Redditor's public profile by username.
- Get User Trophies
Get a Redditor's public trophies (achievements) by username.
- List User Submitted
List posts submitted by a Redditor.
- List User Comments
List comments authored by a Redditor.
- Delete Comment
Delete a comment owned by the authenticated user.
- Delete Message
Delete a private message from the authenticated user's inbox.
- Remove Thing
Remove a post or comment from a subreddit as a moderator.
- Submit Comment
Reply to a post or comment as the authenticated user.
- Edit Comment
Replace the Markdown body of a comment owned by the authenticated user.
- Compose Message
Send a private message to a Redditor or to a subreddit's modmail.
- Read Message
Mark one or more inbox items as read.
- Read All Messages
Mark every inbox item for the authenticated user as read.
- Approve Thing
Approve a reported or filtered post or comment as a moderator.
- Ban User
Ban a Redditor from a subreddit (permanent or time-limited).
- Unban User
Reverse a ban, mute, contributor, moderator, or wiki relationship for a user in a subreddit.
- Submit Post
Submit a new link, self/text, or media post to a subreddit.
- Edit Post
Replace the Markdown body of a self/text post (or comment) owned by the authenticated user.
- Save Thing
Save a post or comment to the authenticated user's saved listing.
- Unsave Thing
Remove a post or comment from the authenticated user's saved listing.
- Vote On Thing
Upvote, downvote, or clear a vote on a post or comment.
- Check Username Availability
Check whether a username is free for new-account registration on Reddit.
- Subscribe To Subreddit
Subscribe the authenticated user to one or more subreddits.
- Unsubscribe From Subreddit
Unsubscribe the authenticated user from one or more subreddits.
- Block User
Block another Redditor on behalf of the authenticated user.
- Edit Wiki Page
Create or replace the Markdown content of a subreddit wiki page.
Reddit AI Agent Use Cases
Connect your AI agent to Reddit and help your team scale the marketing operations they run by hand today.
Lead Nurture Sequences
Use StackOne to connect your AI agent to your marketing automation, CRM, and email tools to automate lead nurture email sequences.
View Campaign Performance Reports
Use StackOne to connect your AI agent to your marketing automation, email, and analytics platforms to automate campaign performance reporting.
View Content Repurposing
Use StackOne to connect your AI agent to your document stores, email platforms, and messaging tools to automate content repurposing and distribution.
ViewSet Up Your Reddit MCP Server in Minutes
One endpoint. Any framework. Your agent is talking to Reddit in under 10 lines of code.
Agent Frameworks
JSON{
"mcpServers": {
"stackone": {
"command": "npx",
"args": [
"-y",
"mcp-remote@latest",
"https://api.stackone.com/mcp?x-account-id=<account_id>",
"--header",
"Authorization: Basic <YOUR_BASE64_TOKEN>"
]
}
}
}
Platform Resources
MCP Code Mode: Keeping Tool Responses Out of Agent Context
Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.
11 min
Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery
Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.
10 min
Indirect Prompt Injection Defense for MCP Tools: A Technical Guide
MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.
12 min
MCP vs A2A: Architecture, Security, and When to Use Each
MCP vs A2A: what each protocol standardizes, how they differ, their shared security risks including indirect prompt injection, and when to use one, both, or a hybrid architecture.
12 min
MCP vs API: What 200+ Connector Builds Taught Us
MCP wraps APIs, it doesn't replace them. After building 200+ connectors that serve both, here's when each approach wins.
14 min read
Reddit MCP Server FAQ
Does StackOne have a Reddit MCP server?
Yes. StackOne offers a hosted Reddit MCP server with 57 pre-built actions, and every action is tested and QA'd by StackOne. Connect it to Claude, Cursor, and any other MCP client, or to any agent framework through the AI Action SDK. It ships with managed agent authentication, prompt injection defense, and tool discovery with server-side execution that preserve your agent's context window and keep reasoning performance.
Reddit MCP server vs direct API integration — what's the difference?
A Reddit MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software — backend code calling Reddit. A Reddit MCP server is for AI agents — MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI — discovering and calling Reddit at runtime. StackOne provides both.
How does Reddit authentication work for AI agents?
Reddit authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK — you get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own Reddit account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via
origin_owner_id.Are Reddit MCP tools vulnerable to prompt injection?
Yes — Reddit MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content — documents, messages, tickets, records, or free-text fields — is a potential vector. StackOne Defender scans every tool response before it enters the agent's context — regex patterns in ~1ms, then a MiniLM classifier in ~4ms. 88.7% accuracy, CPU-only.
What is the context bloat of a Reddit agent and how do I avoid it?
Context bloat happens when Reddit tool schemas and API responses eat your Reddit agent's memory, preventing it from reasoning effectively. A single Reddit query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery and Code Mode reduce context bloat — loading only relevant tools per query and keeping raw responses out of the agent's context.
Can I limit which actions my Reddit agent can access?
Yes — you can limit which actions your Reddit agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.
Can I create custom agent actions for my Reddit MCP server?
Yes — you can create custom agent actions for your Reddit MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research Reddit's API, generate production-ready connector YAML, test against the live API, and validate before you ship.
When should I NOT use a Reddit MCP server?
Skip a Reddit MCP server if your integration is purely software-to-software — direct Reddit API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call Reddit actions at runtime.
What AI frameworks and AI clients does the StackOne Reddit MCP server support?
The StackOne Reddit MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.
Put your AI agents to work
All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.