Schedule social media from any chat app
Install the posterly skill for OpenClaw and manage your social media from WhatsApp, Telegram, Slack, or any app you already use. Use MCP when your runtime supports it, or let the skill fall back to the posterly API with the same key.
Get started in seconds
Three steps to schedule posts from any chat app.
Install the skill
# Install the posterly skill
npx skills add awpthorp/posterly-agent
Set your API key
# One key works for the skill, MCP, and REST API
export POSTERLY_API_KEY=your_api_key
API access requires the $3/mo add-on on any posterly plan. Sign up
Message OpenClaw from any chat app
You:
Post "Just launched our new AI features!" to my LinkedIn and Twitter tomorrow at 9am
OpenClaw:
Done! Posts scheduled:
- LinkedIn: scheduled 9:00 AM
- X (Twitter): scheduled 9:00 AM
Post IDs: #1247, #1248
Message from anywhere
OpenClaw runs as a local daemon, message it from any chat app you already use.
How the skill works
OpenClaw reads the SKILL.md file and learns how to talk to posterly without you hand-wiring every action yourself.
Install from GitHub with one command
Prefer posterly MCP when your OpenClaw runtime supports MCP
Fall back to posterly REST API when MCP is unavailable
Use the same POSTERLY_API_KEY for the skill, MCP, and REST API
Skills are loaded on-demand, keeping the agent context clean
Works with any LLM backend: Claude, GPT, Gemini, Llama, and more
Proactive automation with cron jobs
Set up recurring tasks. OpenClaw checks for new content and posts on a schedule.
// openclaw.json (heartbeat)
{
"heartbeat": [{
"cron": "0 9 * * 1-5",
"prompt": "Check ~/content/pending
for new posts. Upload any media,
then schedule to Twitter, LinkedIn,
and Instagram for today at noon."
}]
}
Post to 11 platforms
All platforms accessible from a single chat message.
Also works with Claude Code
posterly works with MCP clients, API clients, and OpenClaw using the same paid add-on and the same key.
Pricing
API & agent access is an add-on to any posterly plan.
API, MCP & Agent Access
Add-on to any posterly plan (from $7/mo)
- OpenClaw skill + MCP server + REST API
- 49 tools for brands, schemas, account/post lifecycle, scheduling, batch creation, AI media, analytics, activity & webhooks
- 100 create-post requests/hour plus separate media/read limits
- All 11 supported platforms
Frequently asked questions
Everything about running the posterly skill on OpenClaw.
What is OpenClaw?+
OpenClaw is a managed agent runtime that connects an LLM to your favourite chat apps (WhatsApp, Telegram, Slack, Discord, and more). Skills give the agent abilities. The posterly skill lets it read brand data and schedule posts on your behalf.
Do I need to know how to code?+
No. Install the skill with one command, paste your posterly API key, and start sending messages. The skill includes natural-language prompts so you can say "schedule this to LinkedIn tomorrow at 9am" instead of writing API calls.
Can OpenClaw post on a schedule automatically?+
Yes. OpenClaw supports cron jobs through its heartbeat config. Tell the agent to check a folder, generate captions, and schedule across LinkedIn, Twitter, and Instagram every weekday morning, all without you touching anything. Examples and the openclaw.json format are above.
Which social platforms can I post to?+
All 11 production posterly platforms: Instagram, X (Twitter), LinkedIn, TikTok, Facebook, Threads, Pinterest, YouTube, Google Business Profile, Telegram, and Bluesky. The skill supports every post type the dashboard supports.
How is OpenClaw different from Zapier or n8n?+
Zapier and n8n are rule-based: you wire triggers and actions in advance. OpenClaw is a conversational agent: you describe what you want in natural language and it figures out the steps. For social media scheduling the difference is huge, OpenClaw can write the caption, pick the image, choose the platform, and schedule the post in one prompt.
Does the skill use MCP or the REST API?+
Both. When your OpenClaw runtime supports Model Context Protocol (MCP), the skill calls the posterly MCP server directly for lower-latency tool use. When MCP is unavailable the skill falls back to the public REST API. Same API key works for both.
What does it cost?+
API and agent access is a $3/month add-on on top of any posterly plan (Starter is $7/month). That covers MCP, REST API, and the OpenClaw skill, 49 tools, 100 create-post requests per hour plus separate media/read limits, and all 11 platforms.
Is there a free trial?+
Yes. Every new posterly account starts with a 7-day free trial of the full Pro plan. Add the API add-on during the trial and your access is free for the trial period too.
Which LLMs does the skill work with?+
The skill is LLM-agnostic. It runs the same way under Claude, GPT-4, GPT-5, Gemini, Llama, or any model OpenClaw supports. The SKILL.md file teaches the model how to use posterly, no model-specific code required.
Ready to schedule posts from your chat app?
Install the posterly skill for OpenClaw and start posting in minutes.
Start plan, then add API