How to post to Tumblr from ChatGPT.Two minutes, no API key.

Why run Tumblr from a conversationChatGPT writes, Breakreach publishes.

A Tumblr blog runs on regular posts and good tags, which show under each post and are how people find it on Tumblr. Writing the caption and the tags in the conversation where your photos and notes already are, then letting the schedule post them, is the easiest way to keep a blog going next to your other networks.

Nothing runs on your machine. Once a post is scheduled, it publishes from our servers, so ChatGPT can be closed and your laptop can be off.

What you can post to TumblrAnd how to ask for each.

• Photo postUp to 30 photos, uploaded to Tumblr and stacked above your text in the order you give them. Text alone works too.Post these three Morning Light photos to Tumblr with a short caption
• Video postOne video, uploaded to Tumblr, above the text. If you also attach photos, Tumblr gets the video alone. Tumblr takes MP4 or MOV, up to 10 minutes and 500 MB.Post the brewing clip to Tumblr with one line about the new blend
• Formatted textLines starting with # or ## become headings, - and 1. lines lists, > lines quotes, and bold, *italic* and links keep their formatting. There's no title: the first line is just the first line.Write a short Tumblr post about how we roast, with a heading and a list

Let ChatGPT write the Tumblr postThen say what to change.

Give the assistant the photos and a few words on what the post is about, and ask for tags too: they show under the post and are how people find it on Tumblr. Tags can have spaces, so morning light stays one tag. Read it in the chat, ask for changes, then schedule it.

Schedule it instead of posting nowOr let it take the next free slot.

Name a time and the post is scheduled in your workspace's time zone. Or skip the time: use my next free slot puts it in the first open slot of your posting schedule, which is weekdays at 11 AM and 4 PM until you change it in Breakreach. Scheduled Tumblr posts go out from Breakreach's servers, so the conversation, the app and your laptop can all be closed.

After it's publishedStats, edits and deletions.

How it did

Likes and reblogs for each post, read from its notes, plus followers for each blog. Tumblr doesn't count views. Ask how many reblogs did last week's posts get? and the numbers come back in the chat. A post left as a draft on Tumblr has no counts.

Edit or delete it

Until it goes out, you can change anything from the conversation: move it to Friday, change the caption, turn it back into a draft. A failed post can be fixed and rescheduled the same way. Once it's published, the connector can't edit or delete it on Tumblr, and deleting it in Breakreach only takes it off the calendar, so edit or remove a published post on Tumblr, where you can edit it like any other post.

What Tumblr requiresAnd the limits to know.

• Works with any Tumblr account. If your login has several blogs (your main blog, side blogs or group blogs), you tick the ones Breakreach posts to, and each becomes its own account.
• Text alone is fine; photos or a video are optional.
• Tumblr posts have no title: your first line stays the first line of the post.
• Up to 30 photos, or one video, shown above the text. When a post has both, Tumblr gets the video alone.

What it can't do yet

• Reblogs, asks and polls: only original posts.
• Audio posts and link cards: links stay inline in the text.
• Tumblr's queue and private posts: Breakreach publishes at the time from its servers, publicly, or leaves a draft on the blog.
• Reading replies or your dashboard from the chat.

Three things people do with it

• Post a photo set from the roastery with a caption and five tags, scheduled for the evening
• Send the same launch to Tumblr, Mastodon and Bluesky, each in its own format
• Keep a side blog going with one post a day, written from your notes

A safe routine for a teamDrafts first, then the calendar.

• Ask for drafts, not postsSay save it as a draft and nothing is scheduled. Drafts land in the Breakreach calendar, where the team can read them, and schedule the draft for Thursday at 9 AM turns one into a post.
• Review in the calendarEvery Tumblr post, from ChatGPT, the API or the app, sits on the same calendar with its time, account and media. Open one to edit it or move it.
• Name the brandWith several workspaces, the connector uses your first one unless you name another, so say which brand the post is for.
• Approve each postSet ChatGPT to ask before it acts (details below), so nothing is published without someone clicking allow.
• Know when something failsA post that hits a temporary error is retried up to three times over 30 minutes. If it still fails, it's marked failed in the calendar with a notification, and you can fix and reschedule it from the chat.
• Revoke access anytimeDisconnect the connector in ChatGPT and the assistant can't post any more. Posts already scheduled stay in the calendar until you cancel them.

Using the connector in ChatGPTPlans, confirmations, phones.

• Which plans have itPlugins from the ChatGPT directory are available across ChatGPT plans, and OpenAI notes that access depends on your plan, workspace, role and region. On Business workspaces apps are on by default and admins can turn them off. On Enterprise and Edu, new plugins stay off until an admin enables them.
• Confirmations before postingChatGPT can show an approval card naming Breakreach and the action before it runs, with options such as Deny, Allow once or Always allow. You choose the default in Settings → Plugins → Permissions: always ask, allow reads only, allow low-risk actions (the default), or allow all actions for one app. To approve every post yourself, pick Always ask.
• Web, desktop and phonePlugins work on the web and in the ChatGPT desktop app, and OpenAI's release notes also cover them on mobile and in voice.
• DisconnectingIn Settings → Plugins, select Breakreach, open the menu on the account and choose Disconnect. Posts already scheduled in Breakreach still go out, so cancel them in the calendar if you need to.

Sources, checked September 2026: Plugins in ChatGPT, Managing app permissions, Connected apps, Admin controls.

Other ways to post to Tumblr from ChatGPTAnd when they're the better choice.

• Tumblr's own schedulingIn Tumblr's editor, the arrow next to Post offers Schedule and Add to queue. The queue publishes up to 50 posts a day and holds 1,000. Better when the post is already written on Tumblr. Tumblr Help, Queue
• PostizPostiz schedules Tumblr posts from its app or its MCP server, one channel per blog, with a title, tags and a source link. Postiz docs
• Zapier or MakeBoth can create a Tumblr post when a trigger fires, such as a new item in an RSS feed. Zapier's Tumblr actions can also be called from an assistant through Zapier MCP. Zapier, Make
• Copy and pasteAsk the assistant for the caption and tags, then post it yourself. Free and fine for a post or two, but nothing is scheduled and the assistant can't see how it did.

When it doesn't workThe fixes for what people run into.

• “Tumblr's daily limit of 250 posts is used up”Tumblr allows 250 posts a day per account, reblogs included, counted by calendar day on Tumblr's clock. The limit is per Tumblr account, so all the blogs of your login share it. Move the post to tomorrow and it goes out.
• “Tumblr is still processing a previous video”Tumblr takes one video at a time per account and has to finish converting the last one first. Wait a few minutes and retry the post. Tumblr also stops at 20 videos a day.
• “Tumblr access expired or was removed”Breakreach renews its Tumblr access on its own, so this usually means the access was removed on Tumblr's side. Connect Tumblr again from Breakreach's Settings and tick the same blogs; your scheduled posts stay in place.