How to integrate Zep MCP with ChatGPT

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How to integrate Zep MCP with ChatGPT

ChatGPT is one of the most popular AI tools today, with capabilities ranging from deep research and image generation to writing, coding, and everyday productivity.

In this guide, I will explain the easiest and most secure way to connect your Zep account to ChatGPT via Composio Connect, so it can summarize unread updates from this morning, create draft replies to urgent messages, fetch contact details for recent senders, and more without ever putting your account credentials at risk.

Also integrate Zep with

Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Zep integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,000+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account with Plus subscription or higher (Business, Enterprise, Edu, or Pro). We will use ChatGPT Web.
  • Access to the Zep workspace you want to connect.
  • Composio MCP.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect Zep to ChatGPT

1. Enable Developer Mode

In ChatGPT, go to Settings > Apps > Advanced settings and turn on Developer Mode.

ChatGPT settings showing Developer Mode toggle

2. Add the MCP server

Click Create app, then paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT create app flow with Composio MCP URL

3. Authorize in your browser

A browser window will open automatically. Sign in to authorize ChatGPT to access your Composio account.

Composio authorization screen for ChatGPT MCP setup

4. Start using Composio

Composio tools are now available in ChatGPT chats and Deep Research. In every new chat, click the + icon at the bottom, click More, and select Composio to enable tools for that conversation.

What you can do after connecting Zep

  • Store a memory about today's meeting
  • Retrieve all memories tagged urgent
  • Summarize knowledge about client preferences

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.

Supported Tools & Triggers

Tools
Add Fact TripleTool to add a manually specified fact triple (subject-predicate-object) to the Zep knowledge graph.
Add Session MemoryTool to add memory messages to a specified Zep session.
Add Thread MessagesTool to add chat messages to a thread in Zep and ingest them into the user knowledge graph.
Clone GraphTool to clone a user or group graph with new identifiers in Zep.
Create GraphTool to create a new graph by adding data to Zep.
Create GroupTool to create a new group in Zep for multi-user graph management.
Create SessionTool to create a new session in Zep for storing conversation memory.
Create ThreadTool to create a new thread in Zep for a specific user.
Create UserTool to create a new user in Zep with properties like user_id, email, and metadata.
Delete GraphTool to delete a graph from Zep.
Delete GroupTool to delete a group from Zep.
Delete Session MemoryTool to delete a session and its memory from Zep.
Delete ThreadTool to delete a thread and its messages from Zep.
Delete UserTool to delete a user and all associated threads and artifacts from Zep.
Get Edge by UUIDTool to retrieve a specific edge by its UUID from the Zep knowledge graph.
Get Graph by IDTool to retrieve a graph by its unique identifier from Zep.
Get Group by IDTool to retrieve a group by ID from Zep.
Get Node Entity EdgesTool to retrieve all entity edges for a specific node in the Zep knowledge graph.
Get Project InfoTool to retrieve project information based on the provided API key.
Get Session by IDTool to retrieve a session by its unique identifier from Zep.
Get Session MemoryTool to retrieve memory for a given session including relevant facts and entities.
Get Session Message by UUIDTool to retrieve a specific message by UUID from a Zep session.
Get Session MessagesTool to retrieve messages for a given session from Zep.
Get Task StatusTool to check the status of asynchronous operations in Zep.
Get Thread MessagesTool to retrieve conversation history for a specific thread from Zep.
Get Thread User ContextTool to retrieve the most relevant user context from the user graph based on thread messages.
Get User by IDTool to retrieve a user by their user ID from Zep.
Get User NodeTool to retrieve a user's graph node and summary from Zep.
Get User NodesTool to retrieve all nodes for a specific user from their graph in Zep.
Get User SessionsTool to retrieve all sessions for a user from Zep.
Get User ThreadsTool to retrieve all threads for a specific user from Zep.
Graph SearchTool to perform hybrid graph search combining semantic similarity and BM25 full-text search across the Zep knowledge graph.
List GraphsTool to retrieve all graphs from Zep with pagination support.
List Groups OrderedTool to retrieve all groups from Zep with pagination support.
List Sessions OrderedTool to retrieve all sessions from Zep with pagination and ordering support.
List ThreadsTool to retrieve all threads from Zep with pagination support.
List Users OrderedTool to retrieve all users from Zep with pagination support.
List All ThreadsTool to list all threads with pagination and ordering support.
Update GraphTool to update graph information in Zep including name and description.
Update GroupTool to update group information in Zep including name, description, and fact rating instructions.
Update MessageTool to update a message in a Zep thread.
Update Session MetadataTool to update session metadata in Zep.
Update UserTool to update an existing user's information in Zep including email, metadata, and ontology settings.

How to build Zep MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Zep MCP?

With a standalone Zep MCP server, the agents and LLMs can only access a fixed set of Zep tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Zep and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with ChatGPT?

Yes, you can. ChatGPT fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Zep tools.

Can I manage the permissions and scopes for Zep while using Tool Router?

Yes, absolutely. You can configure which Zep scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Zep data and credentials are handled as safely as possible.

Used by agents from

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Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.