Directory
Neon
Serverless Postgres with branching
Free tier + paidDatabases & backendneon.com
What it is
Serverless Postgres that separates storage from compute, so databases scale to zero after five minutes idle and Git-style branches copy a database instantly. The free tier covers up to 100 projects at 0.5GB storage and 100 compute-hours each, with 10 branches per project. Acquired by Databricks in 2025.
Why it earns a slot
Instant branching means an agent can spin up a throwaway database per pull request or per experiment. Its remote MCP server at
mcp.neon.tech lets Claude create projects, branch and run SQL without leaving the chat.Know before you commit
Scale-to-zero means cold starts of roughly a second on the first query after idle, and it cannot be disabled on the Free plan. Billing meters compute-hours, not requests.
Getting started
claude mcp add --transport http neon https://mcp.neon.tech/mcp
Neighbourhood
How Neon sits against the rest of the atlas — swaps, companions and the tools builders actually save alongside it.
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