Social media posting API for developers
Zernio's social media posting API lets you publish, schedule, and manage content across 17 platforms. Replace months of integration work with a single endpoint.
- 17 platforms
- Unlimited social accounts
- One API
Simon Fairhurst@siimonfairhurstLaunch day 🚀 Pocket-sized, rugged, and already on every desk.
Simon Fairhurst@siimonfairhurstLaunch day 🚀 Pocket-sized, rugged, and already on every desk.
Join 200,000+ of the world's most ambitious developers and builders
One API. Every platform
Post to all 17 major platforms from one API
From signup to first post in three steps
1Key name
e.g., Production API key
Permission
Read & write
Read only
Profile access
Full access (all profiles)
Create key
Get your API key
Sign up free, generate a key from the dashboard. First 2 social accounts free, unlimited posts.
2Profile
TikTok
X
Threads
YouTube
Bluesky
Snapchat
Discord
Telegram
Slack
iMessage
Google Business
Connect social accounts
Link accounts via OAuth. Each gets a unique ID for API calls.
3Create post
Content
what's on your mind…
Add media
Start posting
One API call to publish across all 17 platforms. Ship your first post in under 5 minutes.
Everything you need to publish
Our new living room collection
Scheduled
Post scheduling & queues
Schedule with timezone support. Set up recurring queues or bulk-upload via CSV.
Images, videos & carousels
Upload images, videos, carousels, Stories, and Reels. Auto-validation and resizing included.
Webhooks & events
Real-time notifications for post status changes and new analytics data.
First comment support
Auto-add first comments on Instagram, Facebook, LinkedIn, and YouTube.
n8n, Make & Zapier ready
Official n8n node plus webhook support for Make and Zapier workflows.
Your agent posts, schedules, and manages content
496 tools on one OAuth connection. Nothing to install, nothing to self-host.
› claude
Claude Code v2.1.19
Opus 4.5 · Claude Max
~/software
›
✓ registered · https://mcp.zernio.com/mcp
✓ signed in over OAuth · no key pasted
✓ call_tool · queued Thu 09:00 · LinkedIn, X
✓ nothing published yet · review it first
Frequently asked questions
Ship your first post today
Generate a key, connect an account, and publish in under 5 minutes.
- 17 platforms
- Unlimited social accounts
- One API
Everything social, not just posting
Comments, DMs, analytics, and ads run on the same API and the same connected accounts.
Campaigns, boosts, and ad analytics in one API across 8 networks
Meta Ads
Pricing launch
Summer Sale
$40/day
Retargeting
$30/day
Meta Ads
Pricing launch
Summer Sale
$40/day
TikTok Ads
Pricing launch
Retargeting
$30/day
Holiday Boost
$52/day
Launch Push
$18/day
Every DM, one API
@leahmarx Ship to Berlin?
@sofia In stock? 😍
@casa.lumen Order update? 🙌
Every metric, one endpoint
Moderate every comment
sarah.klein
Does this cover Threads as well?
lauravisuals
Shipped our whole calendar with this 🙌
nate_builds
Any way to schedule a carousel?
Turn comments into DMs
@lucia_dev Guide 🙌
@andrewww_ Guide
lucia_dev
Here's the guide 👇 · now
andrewww_
Here's the guide 👇 · 1m
Schedule posts in every timezone
Q3 recap is live 📈 Everything we shipped this quarter, in one place.
Tue, Oct 14 · 09:00
One inbox for comments, DMs, and reviews
Olly Bennett
· via +44 7700 900456
Are you open on Sunday?
Diego
· via +1 646 555 0199
Is my order ready to pick up?
Nadia Okafor
· via @nadia.okafor
Love the new drop 😍
Vela Notifications
· via #orders
New order #4821 from Lisbon
Elias Duarte
· via Google review
★★★★★ Worth the queue