---
title: "ChromaDB Vector MCP Server Setup Guide and Schema"
slug: "chromadb"
category: "databases"
package: "mcp-server-chroma"
transport: "stdio"
canonical: "https://mcp-codex.com/servers/chromadb"
source: "MCP Codex (https://mcp-codex.com)"
dateModified: "2026-09-28"
---

# ChromaDB Vector MCP Server

> Semantic search and vector operations on ChromaDB collections.

## Overview
Enable AI agents to perform semantic search, add embeddings, and manage ChromaDB vector database collections. Perfect for RAG (Retrieval-Augmented Generation) workflows, document search, and AI-native knowledge bases.

## Quick Install
```bash
uvx mcp-server-chroma
```

## Environment Variables

| Variable | Description | Required |
| :--- | :--- | :--- |
| `CHROMA_HOST` | ChromaDB server host | No |
| `CHROMA_PORT` | ChromaDB server port | No |

## Client Configurations

### Claude Desktop (`claude_desktop_config.json`)
```json
{
  "mcpServers": {
    "chromadb": {
      "command": "uvx",
      "args": [
        "mcp-server-chroma"
      ]
    }
  }
}
```

### Cursor (`mcp.json`)
```json
{
  "mcpServers": {
    "chromadb": {
      "command": "uvx",
      "args": [
        "mcp-server-chroma"
      ]
    }
  }
}
```

### OpenAI Codex CLI (`~/.codex/config.toml`)
```toml
[mcp_servers.chromadb]
command = "uvx"
args = ["mcp-server-chroma"]
```

## Available Tools (4)

- `query_collection`
- `add_documents`
- `list_collections`
- `create_collection`

## Documentation & Links
- Canonical Web Page: https://mcp-codex.com/servers/chromadb
- Weekly Protocol Changelog: https://mcp-codex.com#newsletter
- GitHub Repository: https://github.com/chroma-core/chroma-mcp
- Setup Tutorial Guide: https://mcp-codex.com/articles/chromadb-vector-mcp