Publish to Medium from Codex
Codex can publish stories on Medium through ClipSpeed. Add the ClipSpeed server with one command, sign in, and then ask Codex to publish stories, pick the time, and apply Medium's settings, without leaving the terminal and IDE. Medium is on the roadmap on ClipSpeed's rail; this page describes how it works and says so.
Keep a human in the loop: Codex shows the plan and asks before anything is public. Posting today: YouTube, TikTok, Instagram, X (Twitter) and LinkedIn.
Also try
How to publish Medium from Codex
One command writes the server into Codex's config. Start codex, sign in to ClipSpeed when it asks, and the tools are available. Connect Medium in ClipSpeed, then describe the post. Setup takes about a minute.
# One-time setup (OAuth, no API key)
codex mcp add clipspeed --url https://api.clipspeed.ai/mcp
# Then ask Codex:
> Publish the essay on Medium Sunday 8am with three tags
Codex: Preview — nothing booked yet. Medium — title. Book it?Codex stores MCP servers in ~/.codex/config.toml under [mcp_servers.clipspeed]. You can also paste the block by hand.
- Run codex mcp add clipspeed --url https://api.clipspeed.ai/mcp in your terminal.
- Start codex. On first use of a ClipSpeed tool it opens the OAuth sign-in; approve it.
- Ask it to list your channels to confirm.
- Connect Medium in the ClipSpeed app, or ask Codex for a connect link: it is private, valid for ten minutes, and Medium signs you in itself.
Developer reference: the Codex MCP page.
What can Codex do on Medium?
On Medium, Codex can publish stories with tags to your profile or a publication. Every booking runs through the same rules as the ClipSpeed app.
Text and Image posts
Medium takes text and image through ClipSpeed. Image: images by URL inside the story.
Limits checked at booking
up to five tags. Titles are required and cap at 100.
Exact time or refused
Name the minute and Codex books it, or you are told why not and offered the next open slot. A booked Medium post is never moved behind your back.
Preview before anything posts
preview: true runs the whole booking and writes nothing. Codex shows the plan, with each slot and the day's remaining cap, and books only on your yes.
Clips cut in the same session
Submit a video or stream link, get captioned 9:16 clips with a viral score, and post the best moment's hook on Medium with a link to the clip. No download, no re-upload.
Pacing and numbers
Planned: Text posts on Medium are at least 120 minutes apart, up to 3 a day. After a post goes out, Codex can read back views and engagement where Medium provides them.
How does Codex post to Medium through ClipSpeed?
You describe what you want in plain language and Codex makes the ClipSpeed calls. A typical conversation has three beats.
Find your Medium channel
Ask Codex whether Medium is connected. It calls list_channels and reads platform_settings, so it also knows what Medium accepts and the limits before you write a word.
Compose within the rules
Describe the post. Codex drafts within Medium'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.
Medium settings reference
These are the schedule_post fields that apply to Medium. Mention any of them in plain language and Codex sets them; the server checks them at booking. Fields marked planned land with the Medium release.
| Field | Type | Required | What it does on Medium |
|---|---|---|---|
platforms | string[] | Yes | Include "medium". Up to ten platforms per call; each books its own slot. |
title | string | Yes | Up to 100 characters. |
text | string | Yes | The story in Markdown or HTML. |
hashtags | string[] | No | Up to five tags. |
publication | string | Planned | A publication you contribute to, or your profile. |
scheduled_at | ISO 8601 | No | Exact or refused with the next open slot. |
preview | boolean | No | Plan only. |
Common Medium configurations
Ask Codex for any of these and it applies the matching settings.
Story to profile
To a publication
Draft
Preview
Example prompts for Medium in Codex
Type these into the terminal and IDE, or pass one to nightly.sh in a script. Codex calls ClipSpeed and confirms before publishing.
Publish Medium with a scheduled time
Publish the essay on Medium Sunday 8am with three tags. Preview first.
Cut the clips, then post the hook
Clip this link, keep the top moment by viral score, and write a Medium post from the best moment's transcript, scheduled for tomorrow 9am. Show me the plan before booking.
From a script with Codex
codex exec "Summarise the changes since the last git tag as one Medium post with a title. Schedule it via ClipSpeed for today at 10am; preview first and book if nothing is refused."
Medium limits and gotchas to know
Medium enforces a few rules that Codex and ClipSpeed respect automatically, but knowing them helps you phrase requests.
- A title up to 100 characters is required; up to five tags.
- Stories submitted to a publication may wait for an editor; the scheduler cannot skip that.
- Medium is on ClipSpeed's roadmap, not the next rail. Bookings are refused plainly until it posts.
- Canonical URL is a planned field for cross-posting.
- Pacing is conservative: three stories a day two hours apart.
| Rule | Medium |
|---|---|
| Accepts | Text, Image |
| Text limit | up to five tags |
| Title | 100 characters, required |
| Links in the caption | Kept |
| Pacing | Planned: Text posts on Medium are at least 120 minutes apart, up to 3 a day. |
| Formats | Image: images by URL inside the story. Aspect: any |
| Status | On the roadmap; described here, not yet bookable |
What Postiz-style schedulers cannot do
Cut the clips first
Codex 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. Codex picks by score, writes the post from the transcript, and books the best moments as links on Medium. 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. Codex 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 Medium. The caption, the time and the file are approved together.The other half nobody else has
Generate the image, then post it
A product shot for Instagram, a 16:9 announcement graphic for X, a six-second opener before a clip: Codex can make an image 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; links are kept clickable.
What is Codex?
Codex is OpenAI's coding agent. It runs in the terminal (codex), inside IDEs, and in the cloud, reads your codebase, runs commands and calls MCP tools. With ClipSpeed added as an MCP server, Codex can clip a video, generate images and video, and schedule posts, interactively or from a script with codex exec.
How ClipSpeed works with Codex
- codex mcp add writes the server into config.toml; Codex discovers the tools at start
- It reads
platform_settingsbefore writing so limits are met schedule_postis exact or refused with the next open slot; nothing moved quietlypreview: truereturns the plan with nothing bookedcodex exectakes one prompt and exits, for cron and CI
Codex vs ChatGPT: Codex (terminal, ide, cloud), ChatGPT (chatgpt.com). This page is about Codex; the Codex guide compares them.
# Written by: codex mcp add clipspeed --url https://api.clipspeed.ai/mcp
[mcp_servers.clipspeed]
url = "https://api.clipspeed.ai/mcp"
# For a runner with no browser, authenticate with an API key instead:
# bearer_token_env_var = "CLIPSPEED_API_KEY"
# Verify
$ codex "List my connected ClipSpeed channels"# 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
# Medium: text/image · text n/a · title 100 requiredPublish to Medium and other platforms from Codex
One request can book the same content to Medium and other channels, each keeping its own settings and its own slot. Every platform below has its own Codex guide.
Also works with
Medium and Codex: frequently asked questions
How do I publish to Medium from Codex?
Run codex mcp add clipspeed --url https://api.clipspeed.ai/mcp in your terminal. Start codex. On first use of a ClipSpeed tool it opens the OAuth sign-in; approve it. Connect Medium in ClipSpeed (or ask Codex for a connect link; it is private and valid for ten minutes), then describe the post in plain language. Codex reads the Medium rules, drafts within them, shows the plan and books on your yes. Medium is on the roadmap; until the badge changes, the booking is refused with a plain message.
What can Codex post to Medium through ClipSpeed?
Publish stories with tags to your profile or a publication. Medium takes text and image posts. A title is required and is capped at 100 characters.
Which Medium settings can Codex control?
The fields in the settings reference above: title, text, hashtags, publication, scheduled_at, preview. Mention any of them in plain language ("unlisted", "tomorrow at 9", "preview first") and Codex sets the matching field before it books.
Do I need a Medium API key or developer account?
No. You connect Medium to ClipSpeed once through Medium's own sign-in, and Codex talks to ClipSpeed over OAuth. No Medium developer key, bearer token or password is pasted anywhere.
How many Medium posts a day can Codex schedule?
Planned: Text posts on Medium are at least 120 minutes apart, up to 3 a day. 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 Codex post to Medium from a script or a cron job?
Yes. Codex's headless mode (nightly.sh) 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 Medium from Codex different from ChatGPT?
The booking is identical: the same rules, the same calendar, the same refusals. What differs is where you work. Codex: terminal, vs code and other ides, codex cloud. ChatGPT: chatgpt.com, conversation first; confirms each write.