Version-aware ingest
Documents enter as durable versions, then updates produce deterministic deltas instead of reprocessing every memory from scratch.
Agent memory infrastructure
Give AI agents memory they can trust.
Ur Brain turns changing documents into current, scoped, retrievable memory for teams that need AI systems to know what changed, what still applies, and what each workspace is allowed to see.
Scoped retrieval
Every document, memory, embedding, and artifact is account and workspace scoped before an agent can retrieve it.
Deployment isolation
Sensitive customers can run in their own self-contained stack, with separate compute, storage, database, and backup policy.
Document memory loop
Built around updates, not one-time uploads.
Ur Brain keeps source documents, document versions, memory records, embeddings, and retrieval permissions in one product boundary. StructuredMerge powers the internal delta path so memory can be updated with reviewable changes.
Store source document versions
Compute structural document deltas
Import memory updates and tombstones
Retrieve current knowledge through MCP/API
Security posture
Workspace boundaries are part of the data model.
Ur Brain is designed so retrieval checks account and workspace scope before returning memory to an agent. Object paths are references, not authorization boundaries, and internal ingest services do not become customer-facing trust surfaces.
For enterprise customers with documents that cannot share tables or storage with other customers, the deployment model supports an isolated stack per customer.
Hosting direction
Static company site now, isolated app stack next.
This public website is static. The hosted application is separate and will run as a containerized service stack, with AWS Lightsail and Kamal as the first deployment target under review.
Static site
Cloudflare Pages serves the company website at the root domain and www.
Hosted app
The application remains separate from this site and is not deployed here.
Customer stacks
Enterprise deployments can run on isolated VPS instances with local Postgres.
Company
Ur Brain is a 9thBit, LLC project.
9thBit builds practical AI infrastructure for software teams, automation workflows, and document-heavy organizations.