AI SMS scheduler: post to SMS from ChatGPT, Claude or Postozo Chat
Ask an AI app in plain words, or write the posts yourself. Text everyone on your list through your own Twilio account: offers, reminders and news, scheduled like any other post. Fill in Send only to and the same post reaches just 1 person.
Post to SMS from ChatGPT, Claude or Postozo Chat
Ask for text message campaigns by SMS in plain words. Postozo gives the AI the SMS rules, checks every post against them and schedules nothing until you say yes.
ChatGPT
Connect Postozo as a custom app in ChatGPT's developer mode, then ask it for SMS posts.
Claude
Add Postozo to Claude with your personal link, then ask Claude to plan and schedule SMS posts.
Postozo Chat
Open Postozo Chat (Agent in the Postozo menu), pick your SMS channel and ask. No other app needed.
Everything you need in a SMS post scheduler
- Schedule text message campaigns by SMS for any date and time, or post right away
- Write once for many channels, then change the text for SMS only
- Preview the post before it goes out
- SMS settings in the editor: Send only to (this post)
- Repeat the post every day, week or month
- Send it to a client for approval first
- Use AI to fit the text to SMS's length and style
How to connect SMS
- In Postozo, click Add Channel and pick SMS.
- Paste your details: Twilio Account SID, Twilio auth token, Your Twilio number, Recipients.
- Save. The channel appears in your channel list.
See the step by step guide to connect SMS, with screenshots.
SMS rules we check for you
A text message to every number on the channel list, or only to "Send only to" in Settings. Up to 1600 characters; over 160 characters the message is split into parts and each part costs Twilio money. Plain text, no photos, no markdown, no hashtags. Only text people who opted in.
Who uses Postozo for SMS
Local offers straight to phones
Appointment and order reminders
Flash sales that cannot wait for the feed
Tips for SMS
- Only text people who agreed in writing. In most countries texting without consent is illegal, and carriers block senders fast.
- Keep it under 160 characters when you can. Longer texts are split into parts and Twilio charges for each part.
- Say who you are in the message. A text from an unknown number with no name gets reported as spam.
- Anyone who replies STOP is blocked by Twilio automatically. They can text START to hear from you again.
Example SMS post
Short, says who it is from, has a clear offer with an end date, and respects opt-outs. This is sample text to show the format, not a real customer post.
Checklist before you schedule a SMS post
- The text is under 1,600 characters for SMS.
- No more than 10 photos or files are attached.
- The channel sits under the right customer, so approval rules apply.
- A time is picked, or the post uses the next free slot.
How approval, AI and reports work on SMS
Approval. If the SMS channel belongs to a customer with approval turned on, every post waits for a yes. The client sees a preview on a review link and can approve, ask for changes or comment. A post that is changed after approval goes back for a new yes.
AI. The AI assistant can fit a post to SMS, keeping it under 1,600 characters, in your brand voice. It can also translate it and write alt text for pictures. Nothing changes until you accept.
Analytics. Postozo does not read post results from SMS, so there are no SMS numbers on the analytics page. You can still count clicks on your links with short links.
Bulk upload. Plan many SMS posts in a spreadsheet and upload them as a CSV file with bulk upload: up to 500 lines, each checked against SMS's rules before anything is created.
Client reports. SMS posts are counted in client reports, without network numbers, because SMS does not share them.
Client accounts. A client can connect their own SMS account from a client connect link, filling in Twilio Account SID, Twilio auth token, Your Twilio number, Recipients on the link page, so no password changes hands.
Related features
Check a draft against the SMS limit with the free SMS character counter, or count for every network at once with the social media character counter.
Can I schedule text message campaigns by SMS with Postozo?
Yes. Connect your account, write the post, pick a date and time, and Postozo publishes it for you.
How many characters can I use in a post on SMS?
Postozo allows up to 1,600 characters for SMS, which is the limit we check before saving.
Can I add a first comment on SMS?
No. SMS posts do not support follow-up comments in Postozo.
Can I post to SMS from ChatGPT or Claude?
Yes. Connect Postozo to ChatGPT or Claude, or use Postozo Chat in the app, and ask for text message campaigns by SMS. It checks the SMS rules and schedules each post only after you say yes.
Can I post to SMS and other networks at the same time?
Yes. Pick all the channels you want in 1 post, and change the text for any single channel.
Is SMS included in every plan?
Yes. Every plan includes all 30 channel types. Plans differ in how many channels you can connect. See Pricing.
Post to SMS from your AI app
Connect SMS, then ask ChatGPT, Claude or Postozo Chat for your first week of posts.
7 day free trial. No card needed.