What configuration settings does ChromaDB support and how do you disable telemetry?

By default, ChromaDB sends anonymised usage telemetry to help the development team understand how the product is used. In enterprise or privacy-sensitive environments this should be disabled. ChromaDB also supports several configuration settings via environment variables and the Settings class.

import chromadb
from chromadb.config import Settings
import os

# --- Option 1: Disable telemetry via environment variable ---
os.environ["ANONYMIZED_TELEMETRY"] = "False"

# --- Option 2: Disable via Settings class ---
client = chromadb.PersistentClient(
    path="./my_db",
    settings=Settings(
        anonymized_telemetry=False,
        allow_reset=True,           # enables client.reset() — wipes all data!
    ),
)

# --- Option 3: Disable telemetry for HttpClient ---
client_http = chromadb.HttpClient(
    host="localhost",
    port=8000,
    settings=Settings(anonymized_telemetry=False),
)

# Settings available via Settings class
all_settings = Settings(
    anonymized_telemetry=False,
    allow_reset=False,          # default: False — prevents accidental wipe
    # chroma_db_impl="duckdb+parquet",  # legacy v0.3 setting (not used in v0.4+)
)

# allow_reset=True enables client.reset() — DELETES ALL DATA
# Only use in testing environments!
client_test = chromadb.EphemeralClient(
    settings=Settings(allow_reset=True)
)
client_test.create_collection("temp")
client_test.reset()  # wipes everything — use in test fixtures
print(client_test.list_collections())  # []