# QuantumStack

> AGEN (Agentic Generative Evolving NFT) is a private AI agent you own as an NFT: memory you control, connectors to other AI apps via MCP (beta), and permissions you can revoke.

AGEN is a personal AI agent. Owning an AGEN NFT gives you the agent, its private memory and the permissions over it. You talk to it in AGEN Live by text or voice, and you can plug the same agent into other AI apps through MCP (beta), one access key per app, with scopes you choose and can revoke at any time. Ownership is recorded on Ethereum mainnet.

Key facts:
- AGEN editions are on sale now at https://www.quantumstack.io/presale: pay by card (processed by Stripe) or in ETH. After payment the NFT is minted to the buyer's wallet on Ethereum mainnet. One AGEN per wallet per edition.
- Energy: the agent spends Q, a fixed-price usage credit (1 Q = 1 QSIGNS = US$ 0.01). Not transferable, not an investment, no promise of return. Energy plans and packs are coming soon; no prices are published yet.
- QST is not offered or sold on the site, and you do not need it to use AGEN. Converting QST into energy is paused.
- Connecting another AI: MCP over Streamable HTTP (beta). The owner gets the server URL (ending in /mcp) and a per-app key in the dashboard; there is no anonymous public endpoint. Compatibility depends on the app: it must let you add a remote MCP server URL with a bearer key. AGEN does not offer OAuth sign-in for connectors yet.
- Privacy, not anonymity: the owner sees and deletes what the agent remembers and shares it only with apps they authorize; on-chain ownership is public.
- Security: the contracts were reviewed internally and tested on a copy of the main network. An independent audit is planned and has not been done yet.

## Pages
- [Home](https://www.quantumstack.io): What AGEN is: a private AI agent you own as an NFT.
- [AGEN for AI assistants](https://www.quantumstack.io/ai): How an MCP client (Claude is the tested one) connects to a user's AGEN with consent.
- [Presale](https://www.quantumstack.io/presale): Editions, current-stage prices, payment by card or ETH, FAQ.
- [Architecture](https://www.quantumstack.io/architecture): Smart-contract layers on Ethereum mainnet behind AGEN.
- [Whitepaper](https://www.quantumstack.io/whitepaper): What AGEN does today, what is coming, usage pricing and the risks.
- [Roadmap](https://www.quantumstack.io/roadmap): What is live, in beta and planned.
- [About](https://www.quantumstack.io/about): Why QuantumStack exists.
- [Privacy Policy](https://www.quantumstack.io/privacy): Data collected, consent, GDPR/LGPD rights.
- [Terms of Service](https://www.quantumstack.io/terms): Rules of use, eligibility and key custody.

## For AI assistants
- [AGEN for AI assistants](https://www.quantumstack.io/ai): how another model connects to a user's AGEN with consent (scopes, revocation, pause).
- [Full context](https://www.quantumstack.io/llms-full.txt): editions, energy rates, MCP scopes, data policy and how to describe AGEN accurately.
- [Machine-readable summary](https://www.quantumstack.io/agen.json): public capabilities in JSON.

## Optional
- [Sitemap](https://www.quantumstack.io/sitemap.xml)
- Contact: team@quantumstack.io