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Captcha

Serves a visitor bot-check challenge that stores no IP addresses, fingerprints or browsing behaviour, and asks no one to label images.

Free plan

Free tier
captcha.cc ↗
Open captcha.ccAlternativesSet it up for my teamIs Captcha yours? Claim the card →
At a glanceswept Oct 20, 2026

not read yet

Use

For
Website owners who want a privacy-respecting captcha on forms, without tracking or image labeling for AI.
Price
Free planpricing page, read Oct 23, 2026
Runs as
SDKAPI
Used for
  • block bots from contact and signup forms
  • verify form submissions on the server
  • add a captcha to a WordPress site
read off captcha.cc on Oct 23, 2026
Worth knowingcomputed from what we read · each with its source
  • Has an MCP server (1 in the registry)public registry →
Pricingpricing page, read Oct 23, 2026

Free plan

pricing page

Your datawhat they publish, each line with its page · read Oct 23, 2026

“We don't use challenges to label AI training data.”

privacy policy ↗

These are Captcha'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 23, 2026
  • MCP servercc.captcha/captchaccverified in the MCP registry
  • Stateanswers, 3 toolschecked 2026-10-23
  • Address to connectcaptcha.cc/mcp

MCP server details →

This card as JSON, for your agent →

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.

Not it? Say what you need

beta

Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

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Questions this page answers
  • What is Captcha?

    Serves a visitor bot-check challenge that stores no IP addresses, fingerprints or browsing behaviour, and asks no one to label images.

  • Who is Captcha for?

    Website owners who want a privacy-respecting captcha on forms, without tracking or image labeling for AI.

  • How much does Captcha cost?

    Captcha has a free plan, per its pricing page on 2026-10-23.

  • Is Captcha free?

    Yes, Captcha has a free plan, per its pricing page on 2026-10-23.

  • Do people use Captcha?

    Little sign of use.

  • Does Captcha train AI on your data?

    No, per its privacy policy (2026-10-23): “We don't use challenges to label AI training data.”

  • Is Captcha safe?

    We do not audit vendors. What Captcha publishes, read 2026-10-23: on training with your data, “We don't use challenges to label AI training data.”.

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.

How we read every tool → · By INITE Atlas Desk