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Zernio

An API that publishes posts, replies to comments and messages, and launches ad campaigns across social networks, messaging apps and blogs.
Developer toolsFor developersFree tier
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At a glanceswept Oct 14, 2026

≈ 3.3kvisits/mo

Little sign of use · estimate, read Oct 14, 2026

For
Developers and AI agent builders adding social, messaging and ad channels through one API
Price
Free plan · From $6/mopricing page, read Oct 16, 2026
Activity
Actively maintainedrelease 2 days ago · site updated 2 days ago
Company
ZERNIO SOFTWARE SL · since 2025 · ~9 peopleprivacy policy · per their site · per their About page
Runs as
API
Used for
  • Publish one post to several social networks
  • Reply to comments and DMs from one webhook
  • Launch and measure ad campaigns through one API
read off zernio.com on Oct 16, 2026
Worth knowingcomputed from what we read · each with its source
Pricingpricing page, read Oct 16, 2026

Free plan · From $6/mo

pricing page

The companyeach fact with its source · read Oct 16, 2026
Your datawhat they publish, each line with its page · read Oct 16, 2026

“We do not use the content accessed through our MCP server or API to train machine-learning models.”

privacy policy ↗

These are Zernio's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 16, 2026
  • MCP servercom.zernio/zernioverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-10-16
  • Address to connectmcp.zernio.com/mcp
  • MCP docsdocs.zernio.com/mcpthe vendor's page ↗
  • Status pagelinked from the homepagestatus.zernio.com ↗

MCP server details →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Developer toolsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Questions this page answers
  • What is Zernio?

    An API that publishes posts, replies to comments and messages, and launches ad campaigns across social networks, messaging apps and blogs. It is listed in the Atlas under Developer tools and made by ZERNIO SOFTWARE SL.

  • Who is Zernio for?

    Developers and AI agent builders adding social, messaging and ad channels through one API

  • How much does Zernio cost?

    Zernio has a free plan; paid plans start at $6/mo, per its pricing page on 2026-10-16.

  • Is Zernio free?

    Yes, Zernio has a free plan, per its pricing page on 2026-10-16.

  • Do people use Zernio?

    Little sign of use: ≈ 3.3k visits/mo · estimate, 2026-10.

  • Is Zernio still maintained?

    Actively maintained: release 2 days ago · site updated 2 days ago.

  • Who owns Zernio?

    Zernio is run by ZERNIO SOFTWARE SL, per its privacy policy (2026-10-16).

  • Does Zernio train AI on your data?

    No, per its privacy policy (2026-10-16): “We do not use the content accessed through our MCP server or API to train machine-learning models.”

  • Is Zernio safe?

    We do not audit vendors. What Zernio publishes, read 2026-10-16: SOC 2 Type II, GDPR stated on its trust center; on training with your data, “We do not use the content accessed through our MCP server or API to train machine-learning models.”.

  • Does Zernio give refunds?

    In its own words (terms of service, 2026-10-16): “Because billing reflects actual usage, fees are non-refundable except as required by law.”

  • What are alternatives to Zernio?

    In Developer tools, by use: Cloudflare, Twilio, CircleCI, The Content Repurpose Revolution, Prisma, Merge.

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How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.