World (Worldcoin)

World ID

Anonymous proof-of-human credential. Users prove uniqueness via Orb (highest assurance), government document with NFC, or selfie liveness check (beta). Applications request a zero-knowledge proof tied to a per-app nullifier so the user cannot sybil-attack the same action twice while remaining unlinkable across apps.

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Documentation

📖
Documentation
https://docs.world.org/world-id

Other Resources

🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/worldcoin/refs/heads/main/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
aid: worldcoin:world-id
name: World ID
description: Anonymous proof-of-human credential. Users prove uniqueness via Orb (highest assurance),
  government document with NFC, or selfie liveness check (beta). Applications request a zero-knowledge
  proof tied to a per-app nullifier so the user cannot sybil-attack the same action twice while remaining
  unlinkable across apps.
humanURL: https://docs.world.org/world-id
baseURL: https://developer.worldcoin.org
tags:
- World ID
- Proof of Personhood
- Zero Knowledge
properties:
- type: Documentation
  url: https://docs.world.org/world-id