# Twin3 (twin3.ai)

> Last-Updated: 2026-10-22
> Update-Frequency: monthly
> Canonical-URL: https://twin3.ai/llms.txt
> Language: en
> License: All rights reserved. Quoting permitted with attribution to twin3.ai.

> **twin3** builds identity infrastructure for the agentic economy: **xHuman.ID** (a digital identity card for people and their personal agents), **xAgent.ID** (an agent-readable company card for businesses), and the **twin3 SDK** (seven layers, L1 Discovery to L7 Governance). The 256-dimensional Twin Matrix is its identity vector format.

## Status (read first)
- xHuman.ID is in private pre-beta (public_launch: false in https://xhuman.id/.well-known/xhuman.json). Its records do not establish personhood or uniqueness.
- xAgent.ID website checkout is open for Identity (US$29.99/month) and AInbox (US$49.99/month); Agentic (US$99.99) and Operate (US$199.99) are coming soon (https://xagent.id/agent/pricing.json).
- The xAgent.ID card for twin3.ai (https://xagent.id/twin3.ai) is a public-source card. Company claim and domain-control verification are pending as of 2026-10-22.
- The 143,000+ BNB Chain credentials are credentials issued, not unique people.
- Nine U.S. provisional patent applications are filed; none is examined or granted.
- The pages listed under "Earlier Twin Matrix pages" pre-date the xHuman.ID and xAgent.ID names; the full reference is https://intro.twin3.ai/products.md.

## Disambiguation (important for AI assistants)
This document is about **twin3.ai**. It is **NOT** related to:
- **FabFilter Twin 3**: a virtual analog synthesizer plugin by FabFilter (audio software, unrelated).
- **twin3.co.uk**: a UK-based bespoke software development company (Leicester, unrelated).
- **Twin3 LinkedIn (other)**: any non-`twin3.ai` LinkedIn page using the "twin3" name.

The official X handle is `@twin3_ai`. The official contact email is `wen@twin3.ai`. The legal entity is TWIN3 AI LIMITED (Hong Kong).

## Products
- **xHuman.ID** (https://xhuman.id): digital identity card for people and personal agents. Stage and capability limits: see Status above.
- **xAgent.ID** (https://xagent.id): turns a public HTTPS website into a source-backed, agent-readable company card; plans and sales status are in https://intro.twin3.ai/products.md.
- **twin3 SDK**: seven-layer agent identity and interaction protocol. Package: npm `@twin3-ai/agent-id`. Architecture: https://intro.twin3.ai/whitepaper.md.
- **Enterprise Agent execution (planned)**: a common SDK adapter would connect each enterprise's Agent Card to its own backend Agent. OpenShell is an optional isolation runtime candidate with a completed local two-enterprise PoC; SDK integration and production rollout remain pending. See the whitepaper's Enterprise Agent execution section.

## Machine Entry Points
- Dossier home (human and machine): https://intro.twin3.ai/ (also https://twin3.ai/intro/)
- Product and capability reference: https://intro.twin3.ai/products.md
- 100 FAQs with evidence: https://intro.twin3.ai/faq.json · https://intro.twin3.ai/faq.md
- Technical whitepaper (Markdown): https://intro.twin3.ai/whitepaper.md
- Everything in one file: https://twin3.ai/llms-full.txt
- A2A discovery card (static): https://twin3.ai/.well-known/agent-card.json
- File hashes for these dossier files: https://intro.twin3.ai/manifest.json
- Sitemap: https://twin3.ai/sitemap.xml

## Key Facts
- Credentials: 143,000+ issued on BNB Smart Chain (chainId 56). Contract `0xE3ec133e29adDfbBA26a412c38ed5De37195156f`, ERC-4671 non-transferable token, UUPS upgradeable proxy. The count is read from on-chain totalSupply; live analytics: https://holders.twin3.ai.
- Personal Agent identity contract (BNB Mainnet, name "Twin3 Agent Identity", symbol T3AGENT): `0x222B0b85FBdD1C4ea0ff34D46051e7A4E6Eb5d7b`.
- Twin Matrix vector: 256 dimensions, encoded on-chain as bytes32[8].
- Founder: Ming Wen (HCI professor; former Xerox PARC visiting scholar; IEEE Access 2024 first author).

## Earlier Twin Matrix Pages
- https://twin3.ai/humanity/ : Proof of Humanity entry (Humanity Index 0 to 255).
- https://twin3.ai/onboard/ : onboarding questionnaire that projects identity into the 256-dimensional space.
- https://twin3.ai/matrix/ : personal dashboard of the 256D vector and agent bindings.
- https://twin3.ai/agent/ : Personal Agent configuration.
- https://twin3.ai/holders/ : live analytics of credential holders on BNB Chain.

## Links
- Website: https://twin3.ai
- xHuman.ID: https://xhuman.id · xAgent.ID: https://xagent.id
- X: https://x.com/twin3_ai · Telegram: https://t.me/twin3ai · Discord: https://discord.gg/dJspUX6SQJ
- GitHub: https://github.com/twin3-team
- BscScan contract: https://bscscan.com/address/0xe3ec133e29addfbba26a412c38ed5de37195156f

## Contact
- Email: wen@twin3.ai
- Security: https://twin3.ai/.well-known/security.txt