MCP Server for Zep Cloud

zep-mcp

MCP server for the Zep Cloud API — a context engineering platform for AI agent memory. Built with FastMCP and the zep-cloud Python SDK.

📖 The story

I originally built this project back in early 2025 when I was just learning how to code. It worked! ...technically. The old version had a fallback client that returned fake success responses when the API was down 😅, wrapper scripts for every platform imaginable, and enough redundant code to make future-me cringe.

A year later, I've learned a thing or two. So I burned it all down and rewrote it.

• Before: 2 tangled client layers, 8 tools, fallback mode that lied to you, ~4,000 lines 💀
• After: 1 clean server entry point, 13 tools covering the full Zep Cloud API, ~770 lines

Keeping the old git history because it's kinda funny lmao

Use cases

I use this for my own content — ingesting video scripts and viewer comments into Zep's knowledge graph to understand what I've covered, what my audience cares about, and what I should make next.

Map your content knowledge graph — ingest your scripts and audience comments. Zep auto-extracts topics, entities (e.g. people, groups, ideas), and the relationships between them across everything you've published.

See what topics cluster together — explore how a specific entity connects to content pieces and topics. Blue nodes are your actual content; the surrounding topics show what themes appear across those videos and what commenters associate with that entity.

Find content gaps — query for entities with many topic and entity connections but no linked content nodes. Those are things your audience is already thinking and talking about that you haven't made a video on yet.

Setup

python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt

Copy .env.example to .env and fill in your Zep Cloud API key:

cp .env.example .env

Install the pre-commit hook to prevent accidentally committing secrets:

cp scripts/pre-commit .git/hooks/pre-commit

Run the server

source venv/bin/activate
python server.py

Or with FastMCP dev mode:

fastmcp dev server.py

Configuration

Variable	Required	Description
ZEP_API_KEY	Yes	Zep Cloud API key
ZEP_TOOLSETS	No	Comma-separated tool groups to enable. Values: memory, admin. Defaults to memory,admin (all tools).

Tools

13 tools organized by jobs-to-be-done:

Memory tools (memory):

• add_messages — Add messages to a conversation thread
• get_context — Get assembled context block for a user
• add_graph_data — Add data to a knowledge graph (text, JSON, message, or triple)
• search_graph — Search a knowledge graph for facts, entities, or episodes
• get_task — Poll status of an async Zep operation

Admin tools (admin):

• manage_user — User CRUD (create, get, update, delete, list, warm)
• manage_user_instructions — Manage user summary instructions
• manage_thread — Thread CRUD (create, get, delete, list)
• manage_graph — Graph lifecycle (create, get, update, delete, list, clone)
• manage_graph_structure — Graph schema, ontology, and custom instructions
• manage_graph_data — Node, edge, and episode inspection and management
• manage_context_templates — Context template CRUD
• project_info — Get current Zep Cloud project info

Running tests

source venv/bin/activate
python -m pytest tests/

License

MIT