---
title: "Temporal Knowledge Graph · agent memory · Agent Fieldbook"
url: https://agentfieldbook.org/memory/types/temporal-kg/
description: "Treats time as a first-class structural dimension: knows a preference or job was superseded."
section: "Memory · Types"
source: Agent Fieldbook — generated from the published page
---

# Temporal Knowledge Graph

Treats time as a first-class structural dimension: knows a preference or job was superseded.

## At a glance

| Field | Value |
| --- | --- |
| Class | Architecture |
| Scope | Time-aware semantic |
| Examples | Zep / Graphiti |

## How it works

Facts are nodes; relationships are edges carrying valid_from / invalid_at metadata.

## Watch out

Graph maintenance cost grows with entity count.

## Basis

- [getzep.com](https://www.getzep.com)