https://github.com/credona/age-decision

Open-source, privacy-first age verification system based on probabilistic decision, anti-spoofing, and Zero-Knowledge-ready architecture.
https://github.com/credona/age-decision

age-estimation age-verification ai anti-spoofing api computer-vision credona docker face-analysis fastapi liveness-detection machine-learning onnx open-source privacy-first sdk typescript zero-knowledge zkp

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Open-source, privacy-first age verification system based on probabilistic decision, anti-spoofing, and Zero-Knowledge-ready architecture.

• Host: GitHub
• URL: https://github.com/credona/age-decision
• Owner: credona
• License: apache-2.0
• Created: 2026-04-27T00:48:21.000Z (about 2 months ago)
• Default Branch: main
• Last Pushed: 2026-04-27T21:24:52.000Z (about 2 months ago)
• Last Synced: 2026-04-27T23:18:22.165Z (about 2 months ago)
• Topics: age-estimation, age-verification, ai, anti-spoofing, api, computer-vision, credona, docker, face-analysis, fastapi, liveness-detection, machine-learning, onnx, open-source, privacy-first, sdk, typescript, zero-knowledge, zkp
• Homepage: https://github.com/credona/age-decision/tree/main/docs
• Size: 18.6 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE
  • Security: SECURITY.md
  • Governance: GOVERNANCE.md
  • Roadmap: ROADMAP.md

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README

          
Age Decision




  

  

  

  



What is Age Decision


Age Decision is a privacy-first age decision system designed to determine whether a user is likely above or below a threshold (e.g. 18), without performing identity verification.

It provides probabilistic decisions that can be used as a pre-filter before stronger verification systems.



What it is NOT


Age Decision does NOT:

- prove legal age

- perform identity verification

- perform biometric authentication

- replace KYC systems



Typical use cases


- age gating before KYC

- reducing cost of identity verification providers

- filtering obviously underage users

- privacy-preserving eligibility checks



Quick start


Choose your entry point:

1. API usage  

   https://github.com/credona/age-decision-api

2. JavaScript SDK  

   https://github.com/credona/age-decision-js

3. Core decision logic  

   https://github.com/credona/age-decision-core

4. Anti-spoof protection  

   https://github.com/credona/age-decision-antispoof



Repositories


- Core: https://github.com/credona/age-decision-core

- AntiSpoof: https://github.com/credona/age-decision-antispoof

- API: https://github.com/credona/age-decision-api

- JS SDK: https://github.com/credona/age-decision-js



System overview


Age Decision is composed of four repositories:

- `age-decision-core`: age estimation and decision policy

- `age-decision-antispoof`: still-image anti-spoofing analysis

- `age-decision-api`: public gateway and decision aggregation

- `age-decision-js`: TypeScript and JavaScript client SDK



Documentation


- Architecture: docs/architecture.md

- Privacy: docs/privacy.md

- Scoring: docs/scoring.md

- Zero Knowledge: docs/zero-knowledge.md

- Research and references: docs/research.md

- Repository map: docs/repositories.md

- Governance: CONTRIBUTING.md



Roadmap


See ROADMAP.md.



Contributing


See CONTRIBUTING.md.



Security


See SECURITY.md.



License


This project is released under the Apache License 2.0.