The Stack · Vector DB & data infra API

Chroma Cloud

Fully-managed serverless hosting for the developer-favorite open-source Chroma, with the same API as local Chroma and per-database scoped keys.

API keyFreemium🔵 agent: self serve instant keyMCP ✓

Get API key → instant key, usually no card Docs Website

CategoryVector DB & data infra

TypeAPI service

Authapi-key

PricingFreemium

Agent signup🔵 self serve instant key

SDKsPython, JavaScript/TypeScript, REST

MCP serveravailable →

Pricing: Free tier (~1M embeddings) + free credits; usage-based beyond — storage ~$0.02/GB/mo plus query/write ops

🔵 Agents: self serve instant key

Instant self-serve — free signup gives a key immediately (a human unblocks an agent in under 2 minutes).

Sign up free, create databases (dev/staging/prod) and scope individual API keys to specific databases from the console; same API as OSS Chroma so code ports 1:1. Official Chroma MCP server.

Chroma Cloud — Fully-managed serverless hosting for the developer-favorite open-source Chroma, with the same API as local Chroma and per-database scoped keys.
Website: https://www.trychroma.com
Docs: https://docs.trychroma.com/cloud/getting-started
Get a key: https://www.trychroma.com/
Agent signup: self serve instant key — Sign up free, create databases (dev/staging/prod) and scope individual API keys to specific databases from the console; same API as OSS Chroma so code ports 1:1. Official Chroma MCP server.
Auth: api-key
MCP server: https://github.com/chroma-core/chroma-mcp
Pricing: freemium — Free tier (~1M embeddings) + free credits; usage-based beyond — storage ~$0.02/GB/mo plus query/write ops
Full record: https://dreaming.press/api/tools/chroma-cloud.json

Machine record: /api/tools/chroma-cloud.json · add its MCP server →

Quickstart

import chromadb

client = chromadb.CloudClient(
    tenant="YOUR_TENANT",
    database="YOUR_DB",
    api_key="YOUR_API_KEY",
)
col = client.get_or_create_collection("docs")
col.add(ids=["a1"], embeddings=[[0.1, 0.2, 0.3]], metadatas=[{"title": "hello"}])
res = col.query(query_embeddings=[[0.1, 0.2, 0.3]], n_results=3)

python · full docs →

Model Context Protocol

Chroma Cloud exposes an MCP server, so you can add its tools to Claude, Cursor, or any MCP client: https://github.com/chroma-core/chroma-mcp

Chroma Cloud in our coverage

Chroma vs Weaviate vs Milvus: Picking an Open-Source Vector Database in 2026

2026-06-21

Chroma Cloud FAQ

What is Chroma Cloud?

Chroma Cloud is Fully-managed serverless hosting for the developer-favorite open-source Chroma, with the same API as local Chroma and per-database scoped keys. It's in the Vector DB & data infra category of the dreaming.press tool directory.

Is Chroma Cloud free?

Chroma Cloud is freemium — free to start, paid plans for scale. Free tier (~1M embeddings) + free credits; usage-based beyond — storage ~$0.02/GB/mo plus query/write ops.

Can an AI agent sign up for Chroma Cloud automatically?

Almost — signup is instant and self-serve (a free key with no sales call), so a human can unblock an agent in under two minutes. Sign up free, create databases (dev/staging/prod) and scope individual API keys to specific databases from the console; same API as OSS Chroma so code ports 1:1. Official Chroma MCP server..

Does Chroma Cloud have an MCP server?

Yes — Chroma Cloud offers a Model Context Protocol server, so you can add its tools to Claude, Cursor, or any MCP client: https://github.com/chroma-core/chroma-mcp

Is Chroma Cloud open source?

Chroma Cloud is a hosted API service, not an open-source project.

What languages does Chroma Cloud support?

Chroma Cloud offers Python, JavaScript/TypeScript, REST.