Connect an OpenAI dots Plugin for Reddit Monitoring in Developer Mode

OpenAI launched dots on 29 September 2026, and the working route to an OpenAI dots plugin for Reddit monitoring runs through ChatGPT developer mode rather than the plugin directory. RedReplier has no directory listing as of launch day. You add its MCP server by URL, sign in with your RedReplier account, and then check that your dot picks it up, because OpenAI has not said it will.

The short version: turn on developer mode, add https://mcp.redreplier.com/mcp at chatgpt.com/plugins, sign in, and ask your dot for today's Reddit mentions before you schedule anything. Monitoring is almost all reading, so the read-only limit OpenAI puts on Pro custom plugins costs you very little here.

What is an OpenAI dots plugin?

An OpenAI dots plugin is an MCP server, plus optional skills, that ChatGPT installs for your account and your dot then calls. OpenAI's plugin docs describe "one universal plugin directory" shared by ChatGPT and Codex, and the dots docs say "Your dot can use supported plugins installed and enabled for your account." The launch post counts "over 4,000 apps" without a breakdown.

The dot does the calling. It runs on GPT-6 Astra with its own cloud computer and Chrome browser, and it wakes itself up on a schedule, which is the whole draw for Reddit monitoring: the queue gets checked at 08:00 whether or not you opened ChatGPT.

Who can use dots today?

OpenAI dots are rolling out to ChatGPT Pro and Business Premium users, and Enterprise gets a beta that stays off until a workspace admin turns it on. Pro costs $100, $200 or $500 a month, the first dot comes at no extra cost, and Pro access excludes the European Economic Area, the UK and Switzerland. As of 29 September 2026 each user gets one dot, you create it on desktop only, and access reaches accounts gradually over days.

How do I add RedReplier as a dots plugin?

RedReplier goes in as a custom MCP server in ChatGPT developer mode, because it has no listing in the plugin directory as of 29 September 2026. OpenAI's developer plugin docs cover the flow, and RedReplier's side is one URL.

RedReplier's server also accepts an Authorization: Bearer header with a redreplier_ key, and RedReplier's docs reserve that route for headless agents and clients without OAuth. A dot is neither, so sign in.

An OAuth sign-in reaches every RedReplier workspace your account belongs to, so name the workspace in the task or the dot works in your default one.

Will my dot use a developer-mode plugin?

OpenAI has not documented whether a dot uses a custom plugin added in developer mode, as of 29 September 2026. The dots docs say "supported plugins" and stop there. Prove it with one read call before you build a routine on top of it.

Use the RedReplier plugin. Call list_websites and tell me which
websites and keywords I monitor. Then call list_mentions with
sources REDDIT_POST and REDDIT_COMMENT, statuses NEW, sort RELEVANCE
and limit 10, and give me the title, score and link for each one.
Do not call any tool that changes, approves, rejects or deletes anything.

Ten scored threads back means the plugin works. "No RedReplier tool" means your dot does not see developer-mode plugins yet, so run the prompt in an ordinary ChatGPT conversation instead. A dot that opens reddit.com in its own browser skipped the plugin, and from then on you name the plugin in every task.

The two Reddit source values matter. RedReplier splits Reddit into REDDIT_POST and REDDIT_COMMENT, and the Grok bot template for Reddit monitoring explains why the comments are where people ask what to buy.

Does the Pro read-only limit matter for Reddit monitoring?

The Pro read-only limit matters very little for Reddit monitoring, because reading scored mentions is the whole job. OpenAI's August 2026 help article on MCP in ChatGPT says "Full MCP is only available to Business and Enterprise/Edu" and "Pro users can connect MCPs with read/fetch permissions in developer mode." The article predates dots and uses the older "apps" wording, so read it as OpenAI's best published statement, not a dots rule.

On Pro, that limit works as a guardrail. Every tool a Reddit digest needs is a read: list_websites for your keywords, list_mentions for scored threads filtered by source, bucket, score or date, and count_mentions for a single total.

Test explain_mention separately on Pro. RedReplier's spec says the call "fills in relevanceReason, tags and aiReplySuggestion when they are missing, which runs AI scoring", so RedReplier stores something the first time. OpenAI has not said how ChatGPT classifies a tool like that. If the dot refuses it, any reason RedReplier already stored still arrives through list_mentions.

Which RedReplier calls change state?

Ten tools on RedReplier's MCP server change state, each backed by a write operation in the live OpenAPI spec as of 29 September 2026, and a dot on Business Premium or Enterprise reaches all of them.

Custom Rules are the gate on your side. A dot has four settings: take action without asking, take action when you say so or if pre-approved, ask before taking action, and hand off to you. Choose "ask before taking action" for anything that touches RedReplier. OpenAI says a dot always confirms before "permanently deleting data", and delete_keyword fits that description, but OpenAI has not published how its auto-review classifies a third-party tool call. Write the rule into the task yourself.

Can my dot reply to Reddit threads for me?

Your dot cannot reply through RedReplier, because RedReplier's API has no tool or endpoint that posts to Reddit. Every mention carries an aiReplySuggestion, which the spec describes as a "Draft reply for a human to review before posting." OpenAI draws the same line from its side: "Asking your dot to draft replies doesn't give it permission to send them."

The gap is the dot's own browser, which reaches any site, reddit.com included. OpenAI says dots are "taught to seek authorization" before they send a message, so the request reaches you first. Say no. Reddit bans accounts for unreviewed automated replies faster than those replies find customers, and our notes on Reddit's API terms of service cover the rules for an ordinary client.

Where does my RedReplier credential go?

Your RedReplier credential goes into the OAuth sign-in window and never into a message to your dot. OpenAI's safety post warns that "a secret placed separately in a readable message or document may still be visible to the model," and its FAQ says password protections "don't cover passwords you share separately in a chat or document, or through a plugin." A pasted redreplier_ key is exactly that kind of secret.

To cut access, remove RedReplier from the Plugins tab, which RedReplier's docs name as the way to revoke a sign-in. Keys you made for other clients are revoked at redreplier.com/api-tokens.

How do I schedule a daily Reddit digest?

A recurring task schedules the digest, and OpenAI's docs describe recurring tasks as saved schedules you set by telling your dot when to run. Event triggers exist too, but only "when a connected service supports event monitoring", and RedReplier's agent docs list tools and no events as of 29 September 2026. Schedule by the clock.

Ask for "every weekday at 08:00, NEW Reddit mentions from the last 24 hours, HIGH and VERY_HIGH only, sorted by relevance, with a link for each". A fixed 24-hour window beats "since the last run", which is the dot's own bookkeeping rather than a field in the API. RedReplier monitors in real time on every plan, so the dot's schedule decides how fresh the digest is.

Conversations with your dot do not count toward ChatGPT usage limits, according to OpenAI's launch post. OpenAI publishes no rate limits, task duration caps or concurrency limits for dots as of 29 September 2026, so run the digest for a week and watch the Activity View before adding a second routine.

How does the dots plugin compare with the Muse and Grok routes?

The dots plugin is the only one of the three routes where the agent reads RedReplier over MCP with an OAuth sign-in. The Meta Muse connector for Reddit monitoring has Muse write its own connector from the REST spec, and the Grok bot template ships a skill that calls the same API with a token.

The same plugin covers three more jobs: the OpenAI dots plugin for lead finding, the OpenAI dots plugin for social listening across every source RedReplier watches, and the OpenAI dots plugin for X social listening.

Frequently Asked Questions

What does a dots setup for Reddit monitoring cost?

The setup costs your ChatGPT plan plus a RedReplier plan, and the plugin adds nothing. The first dot is included in Pro or Business Premium. RedReplier Starter is $19 a month for 15 keywords, Pro is $39 for 30 and Business is $79 for 50, with API access on every plan, and the Reddit monitor page shows what the monitoring covers.

Can a dot on ChatGPT Pro approve or reject mentions?

OpenAI's August 2026 help article limits Pro custom MCP connections to read/fetch permissions, so a dot on Pro has no documented route to update_mention_status. Business and Enterprise get full MCP. For a monitoring routine that limit is a feature, since a rejected mention leaves your queue without you seeing it.

Does my dot remember the Reddit threads it read?

A dot creates its own memories, including from connected apps, according to OpenAI's help centre. You cannot view or edit individual dot memories as of 29 September 2026. Deleting the dot is the only way to clear them.

Can I use dots for Reddit monitoring in the EU or UK?

Pro users in the European Economic Area, the UK and Switzerland cannot use dots as of 29 September 2026. Business Premium includes dots in every supported ChatGPT region. Users under 18 cannot use dots on any plan.

Where does my dot send the Reddit digest?

A dot answers in ChatGPT on desktop, web and mobile, and OpenAI's launch post adds Slack and Microsoft Teams. OpenAI's admin guide says Teams access is an invite-only alpha, and OpenAI's getting-started article in the help centre says texting is a limited beta for Pro users in the US. A dot cannot start a call to you at launch.

What if my dot browses reddit.com instead of using the plugin?

Name the RedReplier plugin and the tool in every task, as the test prompt above does. The browser route has no relevance score and no record of what you already reviewed. If the dot keeps choosing the browser, run the digest from an ordinary ChatGPT conversation with the plugin enabled.

Is RedReplier in the ChatGPT plugin directory?

RedReplier has no directory listing as of 29 September 2026. You add https://mcp.redreplier.com/mcp as a custom MCP server in developer mode at chatgpt.com/plugins. Include the /mcp path.

Should I connect with OAuth or a redreplier_ key?

Sign in with OAuth. RedReplier's docs reserve the Authorization: Bearer header with a redreplier_ key for headless agents and clients without OAuth, and a dot is neither. A key pasted into a message can also stay visible to the model.

How many dots can I create?

Each user gets one dot as of 29 September 2026, and you create it on desktop only. The first dot comes at no extra cost on Pro or Business Premium. Access reaches accounts gradually over days.

Which Custom Rules setting should I use with RedReplier?

Choose "ask before taking action" for anything that touches RedReplier. Ten tools change state, and delete_keyword removes the keyword and every mention it produced for good. OpenAI has not published how its auto-review classifies a third-party tool call, so write the rule into the task yourself.

Create your RedReplier account and give your dot a read-only Reddit feed today, or read the agent docs first.

Sources: OpenAI's dots launch post, dots safety post, getting started help article, safety FAQ, dots user docs, admin guide, plugins docs, developer plugin docs and the August 2026 MCP help article, plus the RedReplier OpenAPI spec and agent docs. Checked 29 September 2026.