Chroma MCP
Local · stdioChroma is an open-source embedding database for AI applications, and its official MCP server gives agents collection management (create, modify, delete) and document operations: adding records, vector and full-text search, metadata filtering. 12 tools run locally via uvx; Chroma Cloud requires a CHROMA_API_KEY. The repo's last commit was in September 2025.
Why this server
- 12 tools covering the whole cycle, from create_collection to querying and updating documents
- Vector, full-text and metadata search in one collection — no need for three separate systems
- Runs locally via uvx with no key — Chroma Cloud connects through the same server
- peek and count give a quick collection overview before running a heavier query
Usage examples
Prompt: Create a collection for the product knowledge base and add these 50 documents
Result: The agent called create_collection, then add — loading the documents with embeddings and metadata into the new collection.
Prompt: Find documents in this collection that are semantically similar to the customer's question
Result: query ran a vector similarity search and returned the closest documents with a relevance score.
Local server
This MCP runs locally on the user's machine (stdio), so availability isn't tracked — rely on reviews and the rating instead.
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