# Captcha (captcha.cc)

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

- Atlas card: https://inite.ai/en/atlas/captcha.cc
- Site: https://captcha.cc
- For: Website owners who want a privacy-respecting captcha on forms, without tracking or image labeling for AI.
- Use 0/100 · alive 100/100

## Used for

- block bots from contact and signup forms
- verify form submissions on the server
- add a captcha to a WordPress site

## Price

- freemium, free plan (read 2026-10-23 on https://captcha.cc/pricing)

## For developers

- MCP server: cc.captcha/captchacc (namespace; open on 2026-10-23, 3 tools)
- Read 2026-10-23

## MCP server, measured daily

Server: https://captcha.cc/mcp, checked every day since 2026-10-23 (5 checks).

- Answered: measuring, 5 daily checks so far
- Median first answer: 287 ms
- Sign-in: none
- Context its tool definitions take: about 423 tokens (3 tools)
- Tool definitions: A, 94/100
- Failing "params_described": 1 of 3 tools
- Warning "open_writes": create_challenge
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Training on your data: no (https://captcha.cc/privacy)
- Read 2026-10-23

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Source: INITE Atlas, https://inite.ai/en/atlas/captcha.cc. JSON: https://inite.ai/api/atlas/captcha.cc. MCP: https://inite.ai/api/mcp (atlas_lookup).