Via ChatGPT
Ask what went out last week and which account rejected something. It answers from your real posting history.
New chatSearchImages
ChatGPT
list_posts12 postedv2.1 is out.Posted
Behind the buildFailed
Preview
Create Image Post
148
TextImageVideoShortsStory
Search & Filter
Tap to upload from your phone
Images
Main Caption
Start writing your post here…
0 / 3000
Post configurations & tools
Platform CaptionsPast CaptionsPlatform Options
First comment
Add a first comment…
Schedule post
Toggle on to schedule and let Auto-pick find your best time, or post to your selected accounts right away.
A preview of the real composer, not the live app. Click around: nothing here posts anywhere.
Stop posting the same thing nine times
Nine tabs, nine logins, nine copy-pastes, gone. Synapse turns your whole posting routine into a single click.
1
composer
Write your post once
9
platforms
Published all at once
0
copy-paste
Scheduling runs itself
Power your posting withAI and automation
Synapse is something your assistant can drive.Say what you want posted, and it goes out.
claude
Claude Code
Welcome back, Ayden!
synapse mcp connected
create_post
3 accounts · scheduled
Via Claude Code
Type what to post and when, in the terminal you already have open. Claude Code reads your connected accounts and schedules it.
Via your editor
Ship the release note from Cursor, Windsurf, or VS Code the moment you tag the build. No browser, no context switch.
release.tsindex.ts
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$ node release.ts
publishing…
withsynapse.app/api/v1/posts
POST/api/v1/postsSEND
ParamsAuthHeadersBodyScripts
noneform-datarawbinary
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201 Created
"status": "posted"
>_
Automate everything
A public REST API and signed webhooks. Cron, CI, or anything that speaks HTTP can post for you and hear back when it lands.
All the features you need, in one place
Publishing, scheduling, captions, analytics and teams.Here is what each one looks like.
Publish
One post, every account
Write it once and press publish. Synapse delivers to each connected account on its own and tells you exactly how each one went.
New Text Post
Search & FilterRemember
Main Caption
Shipped something small today that I've wanted for months.
58 / 3000
Schedule post
20 Aug 20269:00 AM
ScheduleSave to DraftsFiring your signal everywhere…
Post DetailsPosted
Platforms
@northlight-studioPosted
Northlight StudioPosted
@northlightcoPosted
@northlight.bskyPosted
AnalyticsCreator and up
Numbers you can act on
Views, likes, comments and shares, from the five platforms whose APIs report them. Anywhere else shows a dash, never a made-up zero.
ViewsLast 7 days
280,30038%vs previous 7 days
Mon18,400
Likes
24,918
Comments
3,472
Shares
1,860
By account3 connected
- @northlight.studio118,400
- @northlightco96,700
- @northlight65,200
Schedule
Move it, and it's rescheduled
Drag a post to another day and it publishes there instead. Or let Auto-pick choose the time and leave the calendar alone.
August 2026MonthWeek
91011121314151617181920212223242526272829
Thu Aug 201 post
2:00 PMPreset pack liveMy Voice
Captions that sound like you
Answer three questions once. After that a single click writes the post for each platform, in your voice rather than in a robot's.
Your voiceAnswered once
- You just hit a milestone you’re proud of. Type the post you’d write about it, no polish.finally hit 10k. took two years and a lot of bad photos i deleted
- A follower asks what tool you use. Type the reply you’d actually send.lightroom, plus a few presets i made myself. nothing fancy
- Explain what you do in one sentence, the way you’d say it to a friend.i shoot moody landscape stuff and sell the presets i use
Main Caption
Write in My Voice · 2 credits
LinkedIn
Instagram
TeamsGrowth and up
Bring your team, keep control
Invite people into a workspace and pick what each of them can do. A client can watch the calendar without ever being able to post.
Workspace members2 of 5 seats
You
you@studio.com
Priya
Content lead
Marcus
Client
You. Billing, members and every connected account
Create & edit posts
Schedule posts
Publish now
Upload media
Delete content
Ready to get your evenings back?
Connect your accounts, write the post once, and let Synapse do the nine tabs for you.
A creative studio, built right in
Design visuals that stop the scroll without leaving Synapse or paying for another app. Start from a blank canvas or one of 100 ready-made templates, then export straight to your post.
Original
Background Remover
Filters & Effects
Collage Maker
© Your Brand© Your Brand© Your Brand© Your Brand© Your Brand© Your Brand© Your Brand© Your Brand© Your Brand© Your Brand© Your Brand© Your Brand
Watermark
Your text
Designer
FLASH
SALE
Templates
3/4Loop
GIF Maker
Video Editor
HookTip 1Tip 2CTA
2×2 Grid Video
MOVWebP
File Converter
100 viral templates included
Live in three steps
From sign-up to posting everywhere in minutes.
- 1
Connect your accounts
Link your platforms in a couple of clicks, each through the platform's own authorization screen.
- 2
Compose once
Write your caption, add media, tweak per-platform details, and pick a time.
- 3
Publish everywhere
Hit post. Synapse delivers to every account and tracks the result for each.
Built for how people post today
Reels, Shorts, Stories and TikTok. Synapse handles the formats that actually grow your audience, with the little touches each platform needs.
Shorts & Reels
Vertical video auto-posts as Shorts on YouTube and Reels on Instagram & Facebook.
24-hour Stories
Publish real Instagram & Facebook Stories straight from the composer.
TikTok carousels
Photo carousels with auto-added music, the supported way to ride trending sound.
Creator and up
Connect your agent in minutes
Synapse is a URL your AI assistant can drive. Pick your client, see the fastest way in, and what posting looks like once it is connected.
Fastest way in
Paste one URL
- 1Add a custom connector in Claude and paste the URL below
- 2Your browser opens. Sign in to Synapse and press Approve
- 3Ask it what accounts you have connected
Server URL
https://withsynapse.app/api/mcp
Standard OAuth 2.1 with PKCE, so there is no key to copy. Access goes to that one app, and you can withdraw it from your API Keys page at any time.
Claude
Post the launch note to LinkedIn, X and Bluesky. Schedule it for Thursday 9am.
list_accounts9 connectedcreate_post3 accounts · scheduledScheduled for Thursday 9:00am on all three. It's on your calendar if you want to move it.
Give your agent something to post to.
One URL, one approval, and your assistant can publish to all nine platforms.
Prefer to read first? The API & MCP reference has every endpoint and all eight tools.
Every platform that matters
Connect your accounts once and publish to all of them, with more on the way.
Twitter / X
LinkedIn
Bluesky
TikTok
Instagram
YouTube
Facebook
Threads
Pinterest
Live today: X, LinkedIn, Bluesky, TikTok, Instagram, YouTube, Facebook, Threads and Pinterest.
a
hey! it's ayden
(the guy who made synapse)
it was summer break and i wanted to try creating an app just for a fun side project.
but i realised going from one platform to another, switching accounts and posting individually on each platform takes WAY too much time.
not only that, every time i tried making a thumbnail or templates, i had to open things like canva, a random background remover website, edit it with filters and what not using my phone then send it to my computer. things were messy.
also, online tools are really REALLY expensive. other platforms that post to multiple platforms cost $50/month and canva pro costs $15/month, and those tools are not very user-friendly...
i needed an all-in-one tool, somewhere i can post all at once, somewhere i can use tools that would've otherwise taken me 30 minutes to find. something compact and extremely easy to use. so i built it myself, and that's how synapse was born.
although this website and service is relatively new, i will be sure to use synapse to help market and post things regarding my future apps that i develop, perhaps synapse can help you too!
if you are looking to save hours of social media work every week, try synapse!
any feedback, i can promise that you will be heard and i will be putting my absolute best into making sure this app will serve your needs and benefit you. try it for free! just click the button below.
Simple, honest pricing
Plans for every stage, and cheaper than the competition. Switch or cancel anytime.
1 to 2 months FREE
Starter
Best for beginner creators
$7/month
Billed monthly
- 5 connected accounts
- Multiple accounts per platform
- Unlimited posts
- Schedule posts
- 50 AI credits / month
- Carousel posts
- Bulk scheduling tools
- Email support
$0.00 due today, cancel anytime
Creator
Most popularBest for growing creators
$19/month
Billed monthly
Everything in Starter, plus:
- 15 connected accounts
- Multiple accounts per platform
- Unlimited posts
- Schedule posts
- 200 AI credits / month
- Carousel posts
- Bulk scheduling tools
- Studio features
- Analytics (Beta)
- API & MCP access
- Human support
$0.00 due today, cancel anytime
Growth
Best for growing teams & agencies
$39/month
Billed monthly
Everything in Creator, plus:
- 50 connected accounts
- Multiple accounts per platform
- Unlimited posts
- Schedule posts
- 500 AI credits / month
- Carousel posts
- Bulk scheduling tools
- Studio features
- Analytics (Beta)
- API & MCP access
- Team workspace
- Priority support
$0.00 due today, cancel anytime
Pro
Best dealBest for scaling brands
$79/month
Billed monthly
Everything in Growth, plus:
- Unlimited connected accounts
- Multiple accounts per platform
- Unlimited posts
- Schedule posts
- 1,500 AI credits / month
- Carousel posts
- Bulk scheduling tools
- Studio features
- Analytics (Beta)
- API & MCP access
- Team workspace
- Priority + dedicated support
$0.00 due today, cancel anytime
Secure checkout powered by Stripe
Frequently asked questions
Everything you need to know. Still curious? Email support@withsynapse.app.
Synapse is a social media cross-posting tool: you write a post once, pick your connected accounts, and it publishes or schedules to every platform from one place, tracking the result per account. It connects X, LinkedIn, Bluesky, TikTok, Instagram, YouTube, Facebook, Threads and Pinterest today, with flat pricing from $7/month and a 7-day free trial.
Synapse does it all in one calm place: cross-posting, scheduling, analytics and a full design Studio. It undercuts the big tools on price, so you connect once and post everywhere with no juggling separate apps.
Live today: X, LinkedIn, Bluesky, TikTok, Instagram, YouTube, Facebook, Threads and Pinterest.
Starter includes 5 connected accounts, Creator 15, Growth 50, and Pro is unlimited. Mix any platforms you like.
Starter is the cheap way in at $7/month: 5 accounts, unlimited posts, scheduling, bulk tools and 50 AI captions a month. Creator adds the analytics dashboard, the full Studio design suite, the API and MCP server, 15 accounts and 200 AI captions.
Each social profile you link is one connected account. Your Instagram and your TikTok count as two. Connect as many as your plan allows.
Yes. Connect multiple accounts per platform (say two Instagram profiles) and choose exactly which ones each post goes to.
Unlimited on every plan. Draft, schedule and auto-publish as much as you want. Synapse fires scheduled posts for you automatically.
Text, images, carousels and video, including YouTube Shorts, with per-platform caption overrides. Reels and Stories switch on with the Meta platforms. Plus a built-in Studio to design thumbnails, remove backgrounds, make collages, GIFs and more.
The others still go out. Synapse publishes to each account independently and records the result for each one, so a TikTok error never blocks your LinkedIn post. You retry just the account that failed, and the ones already live are never posted a second time.
No. Synapse publishes natively through each platform's official tools, so your posts are treated exactly like ones posted from the app itself.
Eight of the nine platforms connect through their own authorization screen (OAuth), so Synapse never sees your login at all. Bluesky is the one exception: it has no OAuth, so it uses an app password instead, a credential you generate in Bluesky that only covers posting and can be revoked there any time. It is never your account password. Everything stays scoped privately to your account.
You get 7 days free with a card on file. Cancel any time before it ends and you won't be charged a cent. Prefer to skip the trial? Toggle it off and start your plan right away.
Yes. One click from your billing settings, and you keep access until the end of your current period.
If you subscribe without a free trial, you're covered by a 7-day money-back guarantee on your first payment. Just email us.
We're happy to help. Reach us any time at support@withsynapse.app and a real human will get back to you.
Ready to grow on every platform?
Join creators who post once and reach everywhere.Start for $0 today.
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