Reddit Monitoring MCP Server

The Reddit MCP server withthe noise already filtered out

Octolens monitors Reddit posts and comments across every public subreddit, scores each match for relevance and sentiment, and serves the signal to Claude, ChatGPT, and Cursor over MCP. No Reddit API key, no rate-limit babysitting, no reading 200 matches to find 5 that matter.

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5-minute setup • OAuth sign-in, read-only • MCP on every plan

Your AI assistant · octolens connected

Anything on Reddit this week where people are comparing us to alternatives?

octolens · list_relevant_mentionssource: reddit · 2 results

u/ops_lead_jenna · r/SaaSbuy_intent

We're picking between three tools in this category this sprint — anyone actually run them side by side?

Post · 47 comments · 3h ago

u/devtools_skeptic · r/selfhostedcomparison

Comment: “Tried the open-source route for two weekends, then just paid for the hosted one. The filtering is the actual product.”

Comment · thread with 212 upvotes

Two active threads. The r/SaaS comparison post has no vendor input yet and the OP listed their evaluation criteria — want me to draft a reply that answers those directly?

Trusted by brands people talk about online

The problem

Reddit Has an API — Monitoring Still Hurts

Reddit is where buying decisions get argued out in public. Watching it properly is harder than it looks.

The free tier isn't for this

Reddit's free API tier is for non-commercial use at 100 queries per minute per client. Commercial access is priced per call (about $0.24 per 1,000). Monitoring a brand at scale, continuously, is exactly the workload that pricing was built for.

Raw search is mostly noise

Keyword search returns every match: memes, name collisions, dead threads, bots. No relevance scoring, no sentiment, no dedupe between crossposts. Someone still has to read all of it — that someone is you.

Polling isn't monitoring

The API answers queries; it doesn't watch. No push, no alerts. Reddit threads decide their winners in hours — a complaint or comparison thread found next morning is a thread you didn't get a say in.

Octolens runs the collection continuously — posts and comments across all public subreddits — scores every match with AI, and hands your assistant only the mentions worth acting on.

How it works

From Subreddit Thread to Answer in Your AI Tool

One pipeline: Octolens does the collection and filtering, MCP does the delivery. You just ask.

Add keywords

Your brand, competitors, and the category phrases your buyers use — plus negative keywords for name collisions.

octolens.com → Keywords

Octolens collects

Posts and comments across every public subreddit, with a 7-day backfill per keyword and continuous collection after. Hourly refresh on Pro, real-time on Scale.

posts + comments

AI scores everything

Every mention arrives scored for relevance and sentiment, tagged with labels like buy_intent, competitor_mention, or complaint.

"relevanceScore": "high"

Your assistant queries it

23 MCP tools: list and search mentions, run analytics, manage keywords and feeds — from Claude, ChatGPT, or Cursor.

list_relevant_mentions

Full tool reference in the MCP docs. The same data is available over the REST API and webhooks — on every plan. Prefer alerts and a feed over an AI assistant? See Reddit monitoring.

Setup

Connected in Five Minutes

No Reddit account or API key at any step. You need an Octolens account (7-day free trial) and an MCP-compatible tool.

Add your keywords in Octolens

Brand, competitors, category terms. Reddit collection (posts + comments) starts with a 7-day backfill.

Connect your client

One URL for every tool. Authentication is a browser sign-in to your Octolens account — there's no API key or token to paste.

Ask

Try: “show reddit mentions from today” — you should see your first scored mentions come back.

Anything not covered here — scopes, all 23 tools, troubleshooting — is in the MCP v2 docs. Setup snippets are also in the app under Settings → MCP.

claude mcp add --transport http octolens \
  "https://app.octolens.com/api/mcp/v2"

# then, inside Claude Code:
/mcp   # → octolens → Authenticate

Run the command, then run /mcp inside Claude Code, select octolens → Authenticate, and sign in when the browser opens.

Verify it works

@octolens show reddit mentions from today

New keywords can take up to 24 hours to index fully — check mentions in the Octolens dashboard first if nothing comes back.

Prompts to steal

What You'll Actually Ask It

Copy-paste these into Claude, ChatGPT, or Cursor once you're connected.

Morning digestShow Reddit mentions from the last 24 hours, sorted by engagement

Start the day knowing which threads mention you — without opening Reddit and losing an hour to it.

Buying intentFind threads where people ask for recommendations in our category

“What do you all use for…” threads are open RFPs. The first genuinely helpful vendor reply usually wins the thread — and the readers who find it for years after.

TriageShow negative Reddit mentions from the last 48 hours with the thread context

Reddit threads rank in Google for years. A fast, non-defensive reply in the thread beats a support ticket nobody else ever sees.

Share of voiceCompare Reddit mentions of us vs [competitor] this month, with sentiment

Know your share of the conversation, which subreddits compare you head-to-head, and where the sentiment gap actually is.

Community mapWhich subreddits mention us most, and how has that changed this quarter?

Find the communities that already talk about you — that's where AMAs, launches, and honest feedback land best.

Reply draftingDraft a reply to this thread in our voice: [paste thread]

Draft in your assistant, post it yourself — MCP access is read-only, and Reddit rewards replies that sound like a person, not a brand.

Try these on your own mentions

7-day free trial · No credit card required

Beyond chat

MCP Is One Door Into the Same Data

Octolens is the data layer for what people say online. Your assistant queries it over MCP — your team and your agents can consume it everywhere else too.

Webhooks → your stack

Push instead of poll: scored Reddit mentions delivered to Slack or your own endpoint as they're found. Wire buying-intent posts straight into your CRM.

Explore webhooks →

Agent skills

Ready-made playbooks agents can run over the MCP server — mentions to Linear issues, churn signals to CS, public conversations to pipeline.

Browse agent skills →

API → your product

The same Reddit data over one REST endpoint with one schema across the internet. Build monitoring into your own product or internal tools.

Build with Octolens →

Honest comparison

Your Three Options for Reddit via MCP

Reddit's API is real but priced and rate-limited for a reason. Here's the honest version.

	Octolens MCP	DIY Reddit-API MCP	Manual subreddit lurking
Reddit API key required	No	Yes — plus commercial terms at scale	No
Coverage	All public subreddits, posts + comments	What your queries think to ask	The subreddits you remember to check
AI relevance & sentiment scoring	Built-in	You build it	Your eyeballs
Alerts & continuous collection	Yes — plus Slack & webhooks	You build the poller	No
Rate limits & quota babysitting	Handled for you	100 queries/min, yours to manage	—
Historical data & trends	Yes	Only what you've stored	No
Other platforms via the same server	All sources	Reddit only	—
Cost	$199/mo ($159/mo annual)	Your time + API costs at scale	Free + hours every week

DIY Reddit MCPs are a great weekend project and a rough production system. Manual lurking works until the thread that matters happens in a subreddit you don't check. If Reddit shapes how your buyers decide, monitor it properly.

FAQ

Reddit MCP Server & Monitoring, Answered

Setup, coverage, and API questions — everything about monitoring Reddit from Claude, ChatGPT, or Cursor.

No. Octolens handles Reddit data collection and API terms on its side — you configure keywords and connect the MCP server with a browser sign-in to your Octolens account. No Reddit credentials, no API application, no rate limits to manage.

All public subreddits. Keyword matching runs across posts and comments network-wide, so mentions surface from communities you didn't know discuss you — which is usually where the surprises are.

Both. Comments are where Reddit's real opinions live — a thread about a competitor with a top comment recommending you (or warning about you) is exactly the kind of mention keyword-searching posts alone misses.

Open-source Reddit MCPs wrap the Reddit API: your assistant can run searches, but every result is raw — no relevance scoring, no sentiment, no continuous collection, and the API key, quotas, and commercial terms are your problem. Octolens serves pre-filtered, scored mentions from a pipeline that's already running.

Depends on your plan: hourly refresh on Pro ($199/mo, or $159/mo billed annually), real-time on Scale ($599/mo, or $499/mo billed annually). Reddit threads develop over hours, so hourly is enough to join while the thread is still deciding.

Yes. Add competitor names and phrases like "[competitor] alternative" as keywords. Complaint threads and comparison discussions about competitors are the highest-intent conversations on Reddit.

Claude Code, Claude Desktop and Web, ChatGPT, Cursor, and any other MCP-compatible client. It's one remote server URL with OAuth sign-in — there's no API key to manage and nothing to run locally.

Every new keyword gets a 7-day backfill, then collects continuously — your archive builds from the day you add a keyword. That's enough history for trends, sentiment shifts, and share-of-voice over time.

MCP on every plan

Give your AI tools ears on Reddit

Add your keywords, connect the MCP server, and ask your assistant what Reddit is saying about you — all inside the 7-day free trial.

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