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Nexsus — The substrate
$5.99Starting price
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About Nexsus — The substrate
Nexsus — The substrate provides a private workspace for AI assistants, enabling persistent and structured memory across sessions. Users connect their preferred AI assistant (Claude, ChatGPT, Gemini, or any MCP-compatible client) to a dedicated workspace that remains isolated at the database level. The tool requires no installation, servers, or configuration files, allowing setup in minutes via email sign-up. Once connected, the AI assistant reads, stores, and reasons over user data privately, eliminating the need to restart conversations from scratch. The workspace is owned and controlled by the user, who can export or delete data at any time. Security is enforced through email-and-password authentication, encrypted data in transit, and database-level isolation. The service operates on a usage-based pricing model with a free tier and paid plans for individuals and teams.
Key features
- Persistent structured memory for AI assistants
- Database-level isolation per customer
- Email-and-password authentication
- Encrypted data in transit
- Usage-based pricing with overage fees
- Dashboard for browsing stored data
- OAuth-secured connection
- No configuration files or servers needed
Use cases
- Maintaining long-term context for AI assistants
- Storing and retrieving personal or project-specific knowledge
- Team collaboration with shared but isolated workspaces
Pros
- Private and isolated workspace at database level
- Persistent memory across sessions
- No installation or server setup required
- Supports multiple AI assistants via open MCP standard
- User owns and controls data with export/delete options
Cons
- No free tier beyond basic limits
- Requires MCP-compatible AI assistant
- Pricing in Australian dollars only
Nexsus — The substrate videos
Frequently asked questions about Nexsus — The substrate
What exactly is Nexsus — The substrate?
Nexsus — The substrate is a private workspace that your AI assistant connects to, providing a persistent, structured memory and a secure place to store and work with your data. This allows the assistant to remember context across sessions instead of starting fresh each time.
Which AI tools can I use it with?
You can use Nexsus with Claude, ChatGPT, Gemini, Claude Desktop, and any client that supports the open MCP standard. One workspace works with every compatible assistant.
Is my data private?
Yes. Every customer receives a separate, walled-off workspace isolated at the database level, ensuring your data is never mixed with others'. Security is enforced through email-and-password authentication and encrypted data in transit.
Do I need a credit card to try it?
No. The Free plan only requires an email to get started, and there is no credit card needed. The generous limits are not time-boxed.
How do I connect my assistant?
Add Nexsus as a connector in your assistant's settings and sign in. It follows the standard MCP 'Connect' flow, requiring no manual copying or pasting of URLs.
Can I delete my data?
Yes. You can export your data at any time and delete it permanently. Canceling your account results in the workspace being removed, emphasizing a commitment to data deletion over retention.
