Post to Reddit from OpenClaw
OpenClaw can post to subreddits on Reddit through ClipSpeed. Add the ClipSpeed server with one config block, sign in, and then ask OpenClaw to post to subreddits, pick the time, and apply Reddit's settings, without leaving a personal agent you run yourself and message from WhatsApp, Telegram or Discord. Reddit is on the roadmap on ClipSpeed's rail; this page describes how it works and says so.
Keep a human in the loop: OpenClaw shows the plan and asks before anything is public. Posting today: YouTube, TikTok, Instagram, X (Twitter) and LinkedIn.
Also try
How to post Reddit from OpenClaw
OpenClaw has no browser to complete an OAuth sign-in, so it authenticates with a ClipSpeed API key in a header. Generate the key in your ClipSpeed account, add the server to the agent's MCP configuration, restart the agent. Connect Reddit in ClipSpeed, then describe the post. Setup takes about a minute.
# One-time setup: OpenClaw MCP config
{
"mcpServers": {
"clipspeed": {
"url": "https://api.clipspeed.ai/mcp",
"headers": { "Authorization": "Bearer csai_live_..." }
}
}
}
# Then ask OpenClaw:
> Post the write-up to r/SideProject with the Showcase flair at 10am
OpenClaw: Preview — nothing booked yet. Reddit — title. Book it?OpenClaw sits in ClipSpeed's compatible tier: same protocol and transport as the verified clients, not yet driven end to end by us. The developer reference below covers the wire in detail.
- In ClipSpeed, open Account → API & Integrations → Generate API Key. Copy the csai_live_ key once.
- Add the clipspeed server to your OpenClaw agent's MCP configuration with the URL and the Authorization header.
- Restart the agent and message it: "list my ClipSpeed channels".
- Connect Reddit in the ClipSpeed app, or ask OpenClaw for a connect link: it is private, valid for ten minutes, and Reddit signs you in itself.
Developer reference: the OpenClaw MCP page.
What can OpenClaw do on Reddit?
On Reddit, OpenClaw can post titled text, link, image and video posts to subreddits with a flair. Every booking runs through the same rules as the ClipSpeed app.
Text, Image and Video posts
Reddit takes text, image and video through ClipSpeed. Video: MP4 up to 1 GB. Image: JPG, PNG or GIF.
40,000 characters, checked at booking
Reddit's own arithmetic. Too long is refused with the real count, never trimmed at send time. Titles are required and cap at 300.
Exact time or refused
Name the minute and OpenClaw books it, or you are told why not and offered the next open slot. A booked Reddit post is never moved behind your back.
Preview before anything posts
preview: true runs the whole booking and writes nothing. OpenClaw shows the plan, with each slot and the day's remaining cap, and books only on your yes.
Clips cut in the same chat
Submit a video or stream link, get captioned 9:16 clips with a viral score, and post the best as native video on Reddit. No download, no re-upload.
Pacing and numbers
Planned: Text posts on Reddit are at least 60 minutes apart, up to 5 a day. Video on Reddit is at least 4 hours apart, up to 3 a day under your plan. After a post goes out, OpenClaw can read back views and engagement where Reddit provides them.
How does OpenClaw post to Reddit through ClipSpeed?
You describe what you want in plain language and OpenClaw makes the ClipSpeed calls. A typical conversation has three beats.
Find your Reddit channel
Ask OpenClaw whether Reddit is connected. It calls list_channels and reads platform_settings, so it also knows what Reddit accepts and the limits before you write a word.
Compose within the rules
Describe the post. OpenClaw drafts within Reddit's limits; mention a clip or a file and it attaches it.
Schedule or publish
Name a time, or say now. The slot is booked exactly or refused with the next open one, and the reply carries the id you can cancel or edit by.
Reddit settings reference
These are the schedule_post fields that apply to Reddit. Mention any of them in plain language and OpenClaw sets them; the server checks them at booking. Fields marked planned land with the Reddit release.
| Field | Type | Required | What it does on Reddit |
|---|---|---|---|
platforms | string[] | Yes | Include "reddit". Up to ten platforms per call; each books its own slot. |
title | string | Yes | Up to 300 characters. |
text | string | No | The body for a text post, up to 40,000 characters of Markdown. |
subreddit | string | Planned | Where to post. |
flair | string | Planned | A flair the subreddit offers; some require one. |
media_kind | text | image | video | No | Detected from the file when omitted. |
clip_id or media_url | string | No | A clip or a public link; a URL alone makes a link post. |
scheduled_at | ISO 8601 | No | Exact or refused with the next open slot. |
preview | boolean | No | Plan only. |
Common Reddit configurations
Ask OpenClaw for any of these and it applies the matching settings.
Text post with flair
Video post from a clip
Link post
Preview
Example prompts for Reddit in OpenClaw
Type these into a personal agent you run yourself and message from WhatsApp, Telegram or Discord, or pass one to routine in a script. OpenClaw calls ClipSpeed and confirms before publishing.
Post Reddit with a scheduled time
Post the write-up to r/SideProject with the Showcase flair at 10am. Keep the text under 40,000 characters. Preview first.
Cut the clips, then post the best
Clip this link, keep the top three by viral score, and schedule them to Reddit at 11am, 3pm and 7pm tomorrow with titles written from each hook. Show me the plan before booking.
Check and adjust the Reddit calendar
What is scheduled on Reddit this week? Cancel tomorrow's post and tell me the next open Reddit slot on Friday.
Reddit limits and gotchas to know
Reddit enforces a few rules that OpenClaw and ClipSpeed respect automatically, but knowing them helps you phrase requests.
- A title up to 300 characters is required. Text bodies allow 40,000 characters of Markdown.
- Many subreddits require a flair; the planned tool lists the flairs so the agent picks a valid one.
- Subreddit rules on self-promotion apply; a scheduler does not change them, and pacing is conservative on purpose.
- Reddit is on ClipSpeed's roadmap, not the next rail. Bookings are refused plainly until it posts.
- Reddit's API access terms for third-party posting are stricter than most; the release date depends on them.
| Rule | |
|---|---|
| Accepts | Text, Image, Video |
| Text limit | 40,000 characters |
| Title | 300 characters, required |
| Links in the caption | A link post is its own type; text posts keep links |
| Pacing | Planned: Text posts on Reddit are at least 60 minutes apart, up to 5 a day. Video on Reddit is at least 4 hours apart, up to 3 a day under your plan. |
| Formats | Image: JPG, PNG or GIF. Video: MP4 up to 1 GB. Aspect: any |
| Status | On the roadmap; described here, not yet bookable |
What Postiz-style schedulers cannot do
Cut the clips first
OpenClaw does not need finished video to start. Hand it a YouTube link, a podcast, a stream VOD or a local export. ClipSpeed finds the moments, cuts them to 9:16 with word-by-word captions, scores each one 0 to 100 for shareability, and returns them in the same conversation. OpenClaw picks by score, writes the caption from the transcript, and books the clips on Reddit. Three tool calls, one approval, no download and no re-upload.
- Clips arrive with a title written from the hook, a transcript and a viral score, so the agent can choose and caption without watching the footage.
- Live streams can be clipped while they are still on air; the agent books the highlights for the next morning before the stream ends.
- Every clip is already hosted, so
schedule_posttakes its id directly. Nothing moves through your laptop.
submit_to_clipspeedPaste the link. ClipSpeed starts the job and returns a project id.check_clipsPoll with the project id. Back come the finished 9:16 clips with titles, transcripts, viral scores and preview links.schedule_postPass the clip id, the platforms, a caption and a time. OpenClaw shows the plan with preview: true, you say yes, it books.generate_image or generate_videoDescribe the shot. ClipSpeed runs it on the model that fits (Seedance, Kling, Veo, Nano Banana Pro, GPT Image and others) and quotes the credits first.wait_for_generationReturns the hosted result link and a preview the agent can show you.schedule_post with media_urlThe result link goes straight into the booking on Reddit. The caption, the time and the file are approved together.The other half nobody else has
Generate the image or video, then post it
A product shot for Instagram, a 16:9 announcement graphic for X, a six-second opener before a clip: OpenClaw can make an image or a short video with ClipSpeed's image and video models and book the result in the same reply. There is no separate design tool, no export, no upload page. The generated file is hosted, so media_url is the only thing the booking needs.
- The price in credits is quoted before anything renders, within the per-generation and daily caps you set in Settings.
- Results are previewed in the conversation, so you approve the picture and the post at once.
- Images post as JPG, PNG or WebP up to 25 MB; video posts as MP4, MOV or WebM up to 1 GB.
What is OpenClaw?
OpenClaw is an open-source personal agent that runs on your own machine or server and takes instructions from messaging apps. It can call MCP servers that speak streamable HTTP. With ClipSpeed configured with an API key, your OpenClaw agent can clip videos, generate media and schedule posts when you message it.
How ClipSpeed works with OpenClaw
- The agent connects to the ClipSpeed server over HTTP with a Bearer key
- It reads
platform_settingsbefore composing schedule_postis exact or refused with the next open slotpreview: truefor a plan it sends you before booking- Routines in the agent can call the same tools on a schedule
OpenClaw vs nanoclaw vs Hermes Agent: OpenClaw (your machine; whatsapp, telegram, discord), nanoclaw (your machine; whatsapp or telegram), Hermes Agent (your machine or server). This page is about OpenClaw; the OpenClaw guide compares them.
{
"mcpServers": {
"clipspeed": {
"url": "https://api.clipspeed.ai/mcp",
"headers": { "Authorization": "Bearer ${CLIPSPEED_API_KEY}" }
}
}
}
# Verify from chat:
# you: list my ClipSpeed channels
# agent: TikTok connected (@yourname) · YouTube connected · X connected# What the agent reads at connect time (tool descriptions, abridged)
list_channels Connected platforms, what each accepts, limits, your time zone
connect_channel A private 10-minute link to connect one platform
platform_settings Limits, title rules, link handling, pacing per platform
schedule_post clip_id | text | media_url → platforms[], scheduled_at, preview
list_scheduled_posts Scheduled, sending, posted, failed — with post links
update_scheduled_post Edit copy while still scheduled (the time never moves)
cancel_scheduled_post Cancel; undoable 72 h in the app
post_analytics Views, likes, comments, shares where the platform gives them
submit_to_clipspeed Start clipping a video or stream link → projectId
check_clips Finished 9:16 clips with titles, transcripts, viral scores
generate_image / generate_video / wait_for_generation
# Reddit: text/image/video · text 40,000 · title 300 requiredPost to Reddit and other platforms from OpenClaw
One request can book the same content to Reddit and other channels, each keeping its own settings and its own slot. Every platform below has its own OpenClaw guide.
Also works with
Reddit and OpenClaw: frequently asked questions
How do I post to Reddit from OpenClaw?
In ClipSpeed, open Account → API & Integrations → Generate API Key. Copy the csai_live_ key once. Add the clipspeed server to your OpenClaw agent's MCP configuration with the URL and the Authorization header. Connect Reddit in ClipSpeed (or ask OpenClaw for a connect link; it is private and valid for ten minutes), then describe the post in plain language. OpenClaw reads the Reddit rules, drafts within them, shows the plan and books on your yes. Reddit is on the roadmap; until the badge changes, the booking is refused with a plain message.
What can OpenClaw post to Reddit through ClipSpeed?
Post titled text, link, image and video posts to subreddits with a flair. Reddit takes text, image and video posts. Text is limited to 40,000 characters. A title is required and is capped at 300 characters.
Which Reddit settings can OpenClaw control?
The fields in the settings reference above: title, text, subreddit, flair, media_kind, clip_id or media_url, scheduled_at, preview. Mention any of them in plain language ("unlisted", "tomorrow at 9", "preview first") and OpenClaw sets the matching field before it books.
Do I need a Reddit API key or developer account?
No. You connect Reddit to ClipSpeed once through Reddit's own sign-in, and OpenClaw talks to ClipSpeed over OAuth. No Reddit developer key, bearer token or password is pasted anywhere.
How many Reddit posts a day can OpenClaw schedule?
Planned: Text posts on Reddit are at least 60 minutes apart, up to 5 a day. Video on Reddit is at least 4 hours apart, up to 3 a day under your plan. When a time is taken, the booking is refused with the next open slot rather than moved. Ask for preview to see a day's plan and the remaining cap before anything is booked.
Can OpenClaw post to Reddit from a script or a cron job?
Yes. OpenClaw's headless mode (routine) runs one prompt and exits, and the ClipSpeed server registered on that machine does the booking. On a runner with no browser, authenticate with a ClipSpeed API key header. Keep preview on so the run reports a plan before it books.
Is posting to Reddit from OpenClaw different from nanoclaw?
The booking is identical: the same rules, the same calendar, the same refusals. What differs is where you work. OpenClaw: your own machine or server; chat from whatsapp, telegram, discord. nanoclaw: your machine; whatsapp or telegram, smaller footprint, fewer integrations.