Connect PostOnce and Letta
Integrate PostOnce with Letta to automate workflows, sync data between apps, and eliminate repetitive tasks with AI-powered automation.
Create Agent in Letta when New Post Created in PostOnce
Send message to Letta agent via Letta when New Post Created in PostOnce
Save memory to Letta to Letta when New Post Created in PostOnce
Create Folder in Letta when New Post Created in PostOnce
Create Archive in Letta when New Post Created in PostOnce
Popular PostOnce + Letta flows
Start from a real workflow other teams are already running.
Choose a trigger
PostOnce
When this happens...
New Post Created
Choose an action
Letta
Automatically do this!
Create Agent
Send message to Letta agent
Save memory to Letta
Create Folder
Create Archive
Create identity
List Identities
Create Agents From Template
Create Agent in Letta when New Post Created in PostOnce
Use this flowSend message to Letta agent via Letta when New Post Created in PostOnce
Use this flowSave memory to Letta to Letta when New Post Created in PostOnce
Use this flowCreate Folder in Letta when New Post Created in PostOnce
Use this flowCreate Archive in Letta when New Post Created in PostOnce
Use this flowCreate identity in Letta when New Post Created in PostOnce
Use this flowList Identities from Letta when New Post Created in PostOnce
Use this flowCreate Agents From Template in Letta when New Post Created in PostOnce
Use this flowCreate Upload URL in Postonce when New Agents in Letta
Use this flowGet Media from Postonce when New Agents in Letta
Use this flowSupported Triggers & Actions
Everything you can automate between PostOnce and Letta.
When this happensTriggers
A trigger is an event that starts a workflow.
New Post Created
Runs when a new post is created. You can filter by account and set the lookback minutes.
New Agents
Show agents created since a specified time, newest first.
New Folders
Show folders created within a recent time window (default 15 minutes).
New Messages
runs when new message arrives
Do thisActions
Action is the task that follows automatically within your PostOnce integrations.
Create Upload URL
Generate a signed upload URL for a media file by filename; MIME type is auto-detected from the filename extension.
Get Media
Retrieve a media item's storage path and public URL using its media ID.
Create Post
Create a post to selected accounts with content, media, scheduling, and platform-specific options.
List Posts
Retrieve posts or a single post by ID. Leave fields empty to return all data; set limit (1–100) and after cursor.
Cancel Post
Cancel a scheduled or pending post by Post ID without deleting its record or published content.
Publish Post
Publish a scheduled or draft Postonce post immediately by specifying the post ID.
Learn how to build your first workflow
Follow a simple walkthrough to create, test, and launch your first automation.
- 1
Connect your apps
Link the apps you want to automate.
- 2
Configure your workflow
Set up triggers, actions, and map your data.
- 3
Test & publish
Test your workflow and publish it.
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Just describe the task in plain English. viaSocket AI selects the right apps, builds the workflow, maps the fields, and prepares everything for review before you publish.
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About PostOnce
PostOnce is a social media automation platform that enables creators, teams, and businesses to schedule and crosspost content across platforms including TikTok, Instagram, YouTube, Facebook, LinkedIn, X, Threads, Bluesky, and Pinterest.
Learn moreSimilar apps
About Letta
Letta is a comprehensive platform designed to streamline communication and enhance productivity for teams and businesses. With a focus on seamless collaboration, Letta offers tools for efficient messaging, file sharing, and project management, making it an ideal choice for organizations looking to improve their workflow and connectivity.
Learn moreSimilar apps
Frequently Asked Questions
Sign up for a free viaSocket account, then authorize both your PostOnce and Letta accounts. From there, pick a trigger in one app and an action in the other. Your first workflow can be live in under five minutes.
Yes. viaSocket uses instant triggers where available, so data moves between PostOnce and Letta as soon as the event happens. Scheduled polling triggers run at a maximum interval of 15 minutes.
Yes. You can map specific fields, apply filters to skip records that do not match your conditions, and transform values before they reach Letta. No coding required.
Yes. You can set up a workflow where PostOnce triggers actions in Letta, and a separate workflow where Letta triggers actions in PostOnce. Both run independently and in real time.
viaSocket logs every run so you can see exactly what succeeded and what failed. Failed tasks can be retried from the dashboard without re-configuring the workflow.
Yes, there is a free plan that covers basic workflows between PostOnce and Letta. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.
No. The entire PostOnce and Letta integration is built through a visual, point-and-click interface. Code blocks are available if you want them, but they are never required.
