Zernio
Twilio alternative for social media

Twilio sends messages. Zernio publishes to 15+ social platforms

Twilio can't post to Instagram, TikTok or LinkedIn. Zernio gives you publishing on 15+ networks, ads on 7, analytics and a unified inbox behind one API key.

  • Trusted by 70,000+ developers
  • Teams at ClickUp
  • Free tier included
  • No credit card

Official partner on every network you publish to

  • Meta Business Partner
  • TikTok Marketing Partner
  • LinkedIn Marketing Partner
  • Pinterest Partners
  • X Official Partner

The problem

Twilio wasn't built for social media

It is a communications platform: SMS, voice, WhatsApp messaging. If you need social media infrastructure, it is the wrong tool.

No social publishing

Twilio can send an SMS. It cannot publish a carousel to Instagram or a video to TikTok.

Complex pricing

Per-message, carrier fees, number rental, compliance. Median Twilio spend: $85K/yr.

Slow support

26+ G2 reviews cite slow responses. Priority support runs $1K to $3K/mo on top of usage.

Side by side

Zernio does what Twilio can't

Capability Zernio Twilio
Social publishing 15+ platforms No
Ad management 7 ad networks No
Social analytics Per-post metrics No
MCP server (AI) Full parity with REST No
Pricing model Per account Per action + fees
Setup time ~30 seconds Hours to days
Free tier Yes Pay-per-use only
“Zernio is great.”

Guillermo Rauch

CEO, Vercel

One API call

Publish everywhere with a single POST

No platform-specific endpoints, no per-network OAuth. The API handles format validation, character limits and media optimisation.

  • Bearer token auth, so no OAuth complexity reaches your users
  • OpenAPI 3.1 spec, so you can generate typed clients

Eight official SDKs

  • Node.js
  • Python
  • Go
  • Ruby
  • Java
  • PHP
  • .NET
  • Rust

POST /v1/post

{
  post: 'Your content here',
  platforms: ['instagram', 'tiktok', 'linkedin',
               'twitter', 'youtube'],
  mediaUrls: ['https://…'],
  scheduleDate: '2026-04-23T10:00:00Z'
}

Five platforms. One request.

YouTube
Telegram
TikTok
Reddit
WhatsApp
Facebook
LinkedIn
Threads

Platform coverage

16 social platforms. 7 ad networks. One key

Zernio handles OAuth, approvals, API changes and rate limits for every one of them. Ads run on Meta, Google, TikTok, LinkedIn, Pinterest, X and ChatGPT.

Bluesky
Instagram
Google Business Profile
Snapchat
Slack
X
Pinterest
Discord

AI-native

Built for AI agents, not just developers

Zernio's MCP server exposes the same capabilities as the REST API, with zero configuration.

MCP server

Works with Claude Desktop, Cursor and any MCP client. No setup.

LLM-optimized docs

Feed them to any model for instant context on every endpoint.

Full agent loop

Create, publish, measure, promote: all through one connection.

claude-desktop-config.json

{
  "mcpServers": {
    "zernio": {
      "url": "https://mcp.zernio.com"
    }
  }
}
  • "Schedule a TikTok video for tomorrow at 9am"
  • "Boost my top-performing LinkedIn post as an ad"

Trusted by developers

6,000+ teams build on Zernio

"API is straightforward, well-documented, and simple. It just works."

Zernio user review

"Integration was incredibly easy. Had everything up and running in less than an hour."

SaaS developer, purplepalm.ai
SOC 2
GDPR
99.7% uptime SLA

Predictable pricing

Start free. Scale without surprises

No plans, no seats, no setup fee. You pay per connected account, and every feature is included on every account.

First 2 accounts Free forever
Accounts 3 to 10 $6 /account/mo
Accounts 11 to 100 $3 /account/mo
Accounts 101+ $1 /account/mo, no cap
Publishing & scheduling
Analytics & metrics
DM inbox
Comments & reviews
Ad campaigns
Webhooks

Voice, SMS and WhatsApp usage at carrier rates, no markup

Phone numbers from $3/mo
Calls, inbound + outbound from $0.01/min
SMS outbound from $0.008/msg
SMS inbound (US numbers) $0.010/msg
10DLC registration (US, one-time) $9
WhatsApp service messages (24h window) Free
X/Twitter API calls X's exact rates

WhatsApp template messages are billed by Meta directly to your WABA. X/Twitter API costs pass through at X's exact rates.

No credit card for the first 2 accounts. No contracts, no setup fees, cancel anytime.

70,000+ developers

What developers say after shipping

  • Elena Zarino
    Elena Zarino Web Developer

    I integrated Zernio's API and MCP into my Claude Copilot and Claude Code setup, and it filled a gap I'd been working around for a while.

  • Leon
    Leon Founder, Moving Monkey

    We're integrating Zernio into our coaching app's WhatsApp inbox and love how clean the SDK is. Thank you for that.

  • Justin
    Justin Founder, StandoutResults

    We'd been using the HighLevel API for social posting, every post stuck in draft, a lot of hassle. Zernio has been a breeze to work with.

  • Marko
    Marko Developer, Meta Ads API

    It works flawlessly now. Superb, as always. You and the team rock, keep up the amazing work.

  • Razvan Ghetiu
    Razvan Ghetiu Founder, purplepalm.ai

    I use Zernio for my SaaS purplepalm.ai. Integration was incredibly easy, had everything up and running in less than an hour. The API is super straightforward.

  • Dev Singh
    Dev Singh Founder, ad-attribution SaaS

    I love the speed and quality here, the API is awesome. I've never seen anyone ship integrations this fast.

  • Jim
    Jim Developer

    Zernio makes programmatic multi-platform posting as simple as I've ever seen it. The API is straightforward, well-documented, and it just works.

  • Chris
    Chris Founder, captureflow.ai

    I'm building captureflow.ai on Zernio and I love the platform. Super happy to be using you guys.

  • Zahareus
    Zahareus Developer

    I spent a long time looking for a simple way to integrate a self-hosted stack. Zernio was just perfect, and I highly recommend it.

Questions

What teams ask before they switch

How much work is it to migrate off Twilio?

For social publishing there is nothing to migrate: Twilio has no social endpoints, so you are adding a capability rather than replacing calls. If you are moving voice or SMS, those run on their own endpoints and you can move one number at a time, since both providers can stay live at once.

Do I have to drop Twilio to use Zernio?

No, and most teams don't. The common setup is Twilio for the messaging it was built for and Zernio for social publishing, ads, analytics and the inbox. They authenticate separately and do not conflict.

Is Zernio a full replacement for Twilio's voice and SMS?

Not for everything Twilio does. Zernio covers phone numbers, inbound and outbound calls, and SMS at carrier rates with no markup, which is enough for most social and agent workloads. Twilio has a far broader telephony surface, and if you depend on the deep end of it you will still want Twilio there.

What happens to my data if I leave?

Your connected accounts stay yours, your ad spend goes to the platforms directly, and disconnecting an account stops its charge immediately. The OpenAPI 3.1 spec is published, so nothing about the integration is proprietary. What does not exist yet is a bulk export of the objects Zernio holds on its own side.

What does support actually look like?

Support is included on every account rather than sold as a tier, which is the difference that shows up against Twilio's $1K to $3K/mo priority plans. There is no paid escalation path to buy, because there is no unpaid one to escape.

What does it cost to start?

Nothing. Your first two connected accounts are free forever with every feature included and no credit card. Past that it is $6 per account/month, dropping to $3 and then $1 with volume, and the $1 rate has no cap.

Publish where Twilio can't

Create a key, connect an account, send one POST. Your first two accounts are free forever, no credit card.

  • First 2 accounts free
  • No credit card
  • One API