Does Zernio have an API?

Yes, on every paid plan. You get the full REST surface with a 1,200 req/min limit and a native MCP server that exposes 280+ tools for AI agents.

How much does Zernio cost for 50 channels?

About $138/month with the current pricing tiers. Your first 2 accounts are free, the next 8 are $6 each, the following 40 drop to $3, and anything past 100 lands at $1.

Which platforms does Zernio support?

Fifteen networks, including Instagram, TikTok, YouTube, X, LinkedIn, Facebook, Threads, Bluesky, Mastodon, Pinterest, Reddit, Telegram, WhatsApp, Google Business Profile, and Discord.

Does Zernio auto-compress media?

Yes, per network. That's the difference between a Bluesky post succeeding under the 1 MB cap and getting a silent failure the way we saw with two other tools we tested.

api first

4.8

Zernio Review (2026): Pricing, API Limits & Alternatives

Last fact-check: July 2026

Our hands-on Zernio review — pricing, API limits and the best alternatives, updated July 2026.

from$6/moVisit Zernio Compare alternatives

Quick facts

Starting price	$6 / account
Pricing model	per-account tiered
API included?	Yes
Rate limit	1,200 req/min
Platforms supported	15
Max video size	4 GB
Media processing	auto-compression, resumable
Free plan	Yes
Plan notes	20% recurring 12 months

Who is Zernio for?

Teams running 20+ accounts, AI-agent workflows, and products that need predictable throughput.

Zernio is one of the few tools here that feels built for engineering teams first. You get the full REST API on every paid plan, a published 1,200 req/min limit, and pricing that drops from $6 to $3 and then $1 per account as volume climbs. In July 2026, that's the cleanest fit we found for AI-agent workflows that need more than a dashboard with an add-on API.

API-first posting stack for teams that need scale, structured errors, and a real MCP server.

How Zernio's pricing works

Zernio uses a per-account tiered pricing model starting at $6 per account.

Channels	Starting price	Quick facts
3	$6/mo	per-account tiered
10	$48/mo	per-account tiered
20	$78/mo	per-account tiered
50	$168/mo	per-account tiered

At 20 social accounts you pay roughly $78/mo.

API & developer experience

API included	Yes
Rate limit	1,200 req/min
MCP server	Yes
SDKs	REST, MCP
Platforms	Instagram, TikTok, YouTube, X, LinkedIn, Facebook, Threads, Bluesky, Mastodon, Pinterest, Reddit, Telegram, WhatsApp, Google Business Profile, Discord

Media handling

Max video size	4 GB
FFmpeg	No
Media processing	Yes
Resumable upload	Yes

Pros

Full REST API on every plan
1,200 req/min is high enough for serious automation
Native MCP server with 280+ tools
Strong platform coverage including Reddit, Telegram, and WhatsApp
Auto-compression helps avoid network-specific upload failures

Cons

Under 10 accounts, the per-account price is still higher than Upload-Post
The product surface is wider than many small teams need

Top alternatives

Upload-Post

4.7

from$16/mo

Low-cost posting API with unlimited uploads and server-side FFmpeg that does real video work.

$16/month remains one of the cheapest real API entry points
Unlimited uploads on the entry plan
Server-side FFmpeg saves prep work on video-heavy workflows

Visit site Read review

Postproxy

4.6

from$17/mo

Multi-tenant posting API with scoped keys, queue control, and the SaaS features dashboards rarely ship.

Multi-tenant key model is genuinely useful
Flat $99 at 50 profile groups is competitive
Native n8n nodes shorten automation setup