# Tacnode

> PostgreSQL-compatible context lake that gives AI agents and automated systems shared, live, and semantically consistent context at decision time.

Tacnode Context Lake™ is a distributed context layer that ensures AI agents, fraud detectors, personalization engines, and other automated decision systems all operate on the same live, consistent representation of reality. Built by engineers from Meta, Microsoft, Amazon, and Google, Tacnode solves the core problem of stale or conflicting context that causes AI systems to reach divergent conclusions. It ingests state from OLTP databases, event streams, applications, and logs, then serves that context with strong consistency guarantees and millisecond freshness under massive concurrency. Tacnode speaks PostgreSQL natively, so teams can connect with psql, any ORM, or existing PostgreSQL drivers without changing their workflows.

- **Decision Coherence** — *ensures all AI systems evaluate the same live context simultaneously, eliminating conflicting decisions caused by stale or fragmented data.*
- **PostgreSQL Compatibility** — *connect with psql, your ORM, or any PostgreSQL driver; full SQL support including JOINs, CTEs, window functions, and native vector search with pgvector syntax.*
- **Millisecond Freshness** — *data freshness is built into the architecture by design, so decisions reflect current reality rather than delayed snapshots.*
- **Workload Isolation** — *multi-tenant workloads run concurrently without interference; batch ingestion never slows real-time decision queries.*
- **Unbounded Elasticity** — *horizontal scaling expands and contracts in seconds while the system remains fully online with no maintenance windows.*
- **High Availability** — *automated failover, multi-AZ support, and zero-downtime upgrades keep the system always-on.*
- **Advanced Indexing** — *global secondary, inverted, JSON, vector, and bitmap indexes support diverse query patterns across structured and unstructured data.*
- **Incremental Materialized Views** — *derived facts and semantic interpretations are maintained automatically, so downstream consumers don't reconstruct meaning independently.*
- **Tiered Storage** — *intelligent hot, cold, and cache storage tiers automatically balance performance and cost based on real access patterns.*
- **SOC 2 Type II & HIPAA Compliant** — *enterprise-grade security, audit logging, data masking, and encryption available in Business Critical and Enterprise editions.*

## Features
- PostgreSQL-compatible interface
- Full SQL support (JOINs, CTEs, window functions)
- Native vector search with pgvector syntax
- Millisecond data freshness
- Strong consistency under high concurrency
- Incremental materialized views
- Advanced indexing (global secondary, inverted, JSON, vector, bitmap)
- Workload isolation for multi-tenant environments
- Horizontal scaling with unbounded elasticity
- Multi-AZ failover and high availability
- Zero-downtime upgrades
- Tiered storage (hot, cold, cache)
- Point-in-time recovery and time travel
- Audit logging
- Data masking and encryption
- SOC 2 Type II certified
- HIPAA compliant
- BYOC (Bring Your Own Cloud) Enterprise deployment

## Integrations
PostgreSQL, MySQL, Apache Kafka, Amazon Kinesis, pgvector, AWS Marketplace

## Platforms
WINDOWS, WEB, API

## Pricing
Subscription-based

## Links
- Website: https://tacnode.io
- Documentation: https://tacnode.io/docs
- EveryDev.ai: https://www.everydev.ai/tools/tacnode