Q: How does mCaptcha differ from traditional CAPTCHAs?

A: mCaptcha uses proof-of-work puzzles instead of visual or auditory challenges, making it harder for bots to bypass while reducing user friction.

Q: Is mCaptcha free to use?

A: Yes, mCaptcha is free software licensed under the GNU AGPLv3+, allowing unrestricted use, modification, and distribution.

Q: Why use proof-of-work for CAPTCHAs?

A: Proof-of-work ensures bots expend computational resources, deterring mass attacks while maintaining user privacy by avoiding data collection.

mCaptcha

open source proof-of-work based captcha

CreativeWork free_software Q125807988

Facts

3 properties

Instance of: free software
License: GNU Affero General Public License, version 3.0 or later
Copyright license: GNU Affero General Public License, version 3.0 or later^[2]

🏷️ Also known as

en mCaptcha

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections

Instance of 1

free software

Press Enter · cited answer in seconds

Summary

mCaptcha is a free software^[1].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[2] ↑ mCaptcha — copyright license (P275): GNU Affero General Public License, version 3.0 or later. wikidata.org.

Class ancestry

[1] ↑ mCaptcha is an instance of free software (Q341) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). mCaptcha. Retrieved May 3, 2026, from https://4ort.xyz/entity/mcaptcha

MLA “mCaptcha.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/mcaptcha.

BibTeX

@misc{4ortxyz_mcaptcha_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{mCaptcha}}, year = {2026}, url = {https://4ort.xyz/entity/mcaptcha}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): mCaptcha — https://4ort.xyz/entity/mcaptcha (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/mcaptcha · Last refreshed: May 3, 2026