Auto-post to Slack
Schedule and publish Slack posts automatically — from RSS, blogs, your own composer, or any MCP-compatible AI assistant. Set it up once. Ships forever.
No credit card · Free forever plan
Triggers that publish to Slack
Native formatting
Posts that look native, not pasted
Cross-posting the same text everywhere produces broken Slack posts — truncated mid-word, missing media, wrong aspect ratio. Feedloop reshapes the post to Slack's native format before it ships. Specific to Slack: 4000 chars body, text only.
Over Slack's character limit — gets cut mid-word.
Auto-truncated at word boundaries, native media, char count handled.
Any source
Wire any source to your Slack
RSS feeds, a WordPress webhook, a connected social account, a CSV upload, an AI assistant via MCP, or the in-dashboard composer. Whichever trigger fires, the post lands on Slack formatted natively.
Plan Slack posts in Notion.
Native two-way sync. Your Notion calendar is the source of truth — every row that gets a Slack channel and a Scheduled date ships through Feedloop. Edits in Notion flow back into the queue. After publish, the row updates with the live URL.
- Native API · no Zapier
- Webhook + 5-min poll fallback
- Free on every plan
Let Claude or ChatGPT post to Slack
Feedloop ships a Model Context Protocol server. Any MCP-compatible AI assistant can draft, schedule, and publish Slack posts on your behalf — without you opening a dashboard.
You: Schedule the latest blog post for Slack tomorrow at 9 AM. Draft a Slack-native version first.
One source · many networks
Post to Slack and 12 more networks
Most people who auto-post to Slack also publish elsewhere. Configure one automation that fans out to wherever your audience lives — formatted natively per network.
Get live in 5 minutes
Connect, configure, ship
Connect Slack
OAuth flow takes 30 seconds. Token stored encrypted, refreshed automatically.
Pick a source
RSS feed, blog webhook, connected social account, CSV, AI assistant, or composer.
Set a schedule
Drag-to-reorder queue, calendar view, per-account posting times.
FAQ
Slack auto-poster questions
- Does Feedloop really publish directly to Slack?
- Yes — we use Slack's official API, not a browser automation hack. Your post lands the same way it would if you'd opened the Slack app and tapped Publish.
- Do I need a Slack business account?
- No. Any active Slack account works. Just connect it once via OAuth.
- What does it cost to schedule Slack posts with Feedloop?
- Feedloop has a free tier you can use to schedule Slack posts. Paid plans unlock higher volume and additional connected accounts. We accept USD via Polar and Ethiopian Birr via Telebirr.
- Can I auto-post to Slack from an RSS feed?
- Yes — Slack is a text-first surface and any RSS feed works directly. Image previews are auto-unfurled from links. When publishing does happen, Feedloop auto-truncates at word boundaries to fit Slack's character limit and dedupes by feed item ID so the same entry never ships twice.
- How is this different from Buffer, Hootsuite, or dlvr.it for Slack posting?
- Buffer is composer-first — you still write every Slack post by hand. Hootsuite is enterprise-priced with team workflows we don't try to match. dlvr.it has the same RSS-first shape Feedloop does but no MCP support. Feedloop's wedge is RSS-driven automation + native Slack formatting + a Model Context Protocol server that lets Claude / ChatGPT / Cursor / Gemini drive your Slack pipeline directly.
- Can I plan Slack posts in Notion and have Feedloop publish them?
- Yes. Feedloop has native two-way Notion sync — duplicate the free Feedloop Content Calendar template (or connect an existing Notion calendar), tag each row with Slack as a channel and a Scheduled date, and Feedloop turns each row into a real Slack post on schedule. Edits in Notion flow back into the queue within ~60 seconds via Notion's webhook (with a 5-minute poll fallback). After publish, the row's status flips to Published and the live Slack URL writes back into the row. No Zapier in the middle, no 5-step setup, and it's free on every Feedloop plan.
- Can Claude or ChatGPT schedule Slack posts for me?
- Yes. Feedloop exposes its publishing tools through the Model Context Protocol (MCP), so any MCP-compatible AI client — Claude (web, desktop, code), ChatGPT, Cursor, Gemini, Windsurf, VS Code, Cline, Codex, LM Studio, Cherry Studio, Jan, AnythingLLM — can draft and schedule Slack posts on your behalf. You authorize the connection once and the assistant can queue, reorder, or publish to Slack without you switching tabs.
- Can I see which Slack posts actually work? What stats does Feedloop give me?
- Yes — the Deeper insights tab exposes 22 statistical cuts specifically built for content optimization. For Slack, the most useful are: caption sweet-spot (which caption length range gets the best engagement rate on Slack specifically), hashtag sweet-spot (the optimal hashtag count per post for Slack), engagement rate across 3 denominators (reach, impressions, followers), posting-time heatmap (7×24 grid showing when Slack engagement is highest for YOUR audience), and a bait classifier that flags posts whose engagement spikes correlate with low-quality interactions. The same insights are available as MCP tools so Claude / ChatGPT can pull "what caption length should I use for Slack?" directly into the chat. On Pro you can also schedule a white-label PDF report with your logo and brand color, delivered monthly to your inbox.
- What happens if a Slack post fails to publish?
- The worker retries with exponential backoff before surfacing the failure for manual review. You'll see the exact Slack API error message in the queue and can either retry, edit the post, or remove it. Token-expiry failures auto-trigger a refresh through OAuth — you only get a re-auth prompt when the refresh itself fails.
Start auto-posting to Slack free
Connect your Slack account, pick a source, set a schedule. Free forever plan, no credit card.