# Zep AI

> Zep AI builds the context engineering infrastructure that makes AI agents actually useful. Their platform - powered by a temporal knowledge graph called Graphiti - gives agents persistent memory across sessions, letting them track what users said, what changed, and when. Founded in 2023 and backed by Y Combinator (W24), the San Francisco team hit $1M ARR within months of launch and now serves 240+ customers including Fortune 500 companies. With 25,000+ GitHub stars on Graphiti and a published arXiv paper, Zep is quietly becoming foundational infrastructure for the AI agent era.

- **Founded:** 2023
- **Headquarters:** San Francisco, CA, USA
- **Founders:** Daniel Chalef (CEO & Co-Founder), Preston Rasmussen (Co-Founder & Software Engineer), Pavlo Paliychuk (Co-Founder & Engineer)
- **Team size:** ~10 (5 at YC batch; actively hiring as of 2025)
- **Products:** Zep Context Engineering Platform, Graphiti, Graphiti MCP Server
- **Notable:** $1M ARR with a 5-person team within ~3 months of YC batch (June 2024), 25,400+ GitHub stars on Graphiti within 12 months of launch, Published arXiv research paper on temporal knowledge graph architecture (Jan 2025)

## Products & services

- **Zep Context Engineering Platform** — End-to-end agent memory and context assembly platform. Assembles context from chat history, business data, and events into a temporal knowledge graph, then retrieves pre-formatted, relationship-aware context blocks for LLMs in under 200ms. SOC 2 Type II and HIPAA compliant. Available as Zep Cloud and BYOC (Bring Your Own Cloud).
- **Graphiti** — Open-source temporal context graph engine powering the Zep platform. Tracks how facts change over time with full provenance. 25,400+ GitHub stars, 35+ contributors, 25,000+ weekly PyPI downloads. Supports Neo4j, FalkorDB, Kuzu, and Amazon Neptune. Published on arXiv (Jan 2025).
- **Graphiti MCP Server** — Model Context Protocol server enabling direct integration with Claude Desktop, Cursor IDE, VS Code Copilot, and other MCP-compatible AI assistants.

## Achievements

- $1M ARR with a 5-person team within ~3 months of YC batch (June 2024)
- 25,400+ GitHub stars on Graphiti within 12 months of launch
- Published arXiv research paper on temporal knowledge graph architecture (Jan 2025)
- 240+ customers including Fortune 500 companies
- 50% month-over-month ARR growth (2025)
- SOC 2 Type II and HIPAA compliance
- 71.2% accuracy on LongMemEval benchmark vs 63.8% for full-context baseline (18.5% improvement)
- 98% token reduction vs full-context approaches at 90% lower latency
- Graphiti MCP Server 1.0 launched - integrates with Claude Desktop, Cursor, VS Code Copilot
- 25,000+ weekly PyPI downloads for Graphiti

## Latest updates

- **2025-08** — Zep v3 SDK launched - rebranded as Context Engineering Platform with new API design, 9 default node types, 8 relationship types, graph cloning, and batch ingestion with temporal support.
- **2025-Q2** — Launched custom entity types (Pydantic/Zod), BYOC deployments, metered billing, and observability improvements.
- **2025-Q1** — Graph Explorer, redesigned Playground, and Cookbook developer resources launched. Q1 2025 product roundup published.
- **2025-03** — Daniel Chalef featured on Software Engineering Daily podcast discussing knowledge graphs as agentic memory.
- **2025-01** — Published arXiv paper: 'Zep: A Temporal Knowledge Graph Architecture for Agent Memory' (arxiv.org/abs/2501.13956).
- **2024-08** — Launched Zep Community Edition open-source release.
- **2024-06** — Hit $1M ARR with 5-person team.
- **2024-03** — Joined Y Combinator Winter 2024 batch; $500K pre-seed closed.

## Links

- Website: https://www.getzep.com
- LinkedIn: https://www.linkedin.com/company/zep-ai
- Twitter/X: https://x.com/zep_ai
- GitHub: https://github.com/getzep

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Profile page: https://yespress.io/zep-ai
Published by YesPress — https://yespress.io
Last updated: 2026-04-27