0n3
MCP servers · database

CockroachDB MCP server

Distributed SQL — clusters, databases, SQL users, backups. Hosted by 0n3: 7 endpoints your AI can call with your own CockroachDB account, from Claude, ChatGPT, Cursor, Claude Code, Codex or Gemini CLI. One sign-in, one key per AI, a receipt for every call.

Connect CockroachDBInstall into your AIWatch it work

7 endpoints1 categoriesauth: api_keyhosted

What your AI can do with CockroachDB

Clusters · Manage clusters7
List clustersGET /clusters
Create a clusterPOST /clusters
Get a clusterGET /clusters/{cluster_id}
Delete a clusterDELETE /clusters/{cluster_id}
List sql usersGET /clusters/{cluster_id}/sql-users
Create a sql userPOST /clusters/{cluster_id}/sql-users
List databasesGET /clusters/{cluster_id}/databases

Install in three steps

  1. Create a free account at 0n3.app and connect CockroachDB: paste a key or sign in through a door. It lands in your vault, encrypted.
  2. Open 0n3.app/install, pick your AI. A key is made for that AI alone; copy the line it gives you.
  3. Ask your AI: whoami. It answers with your connected services. Then ask it to list clusters in CockroachDB.
Install (user scope — every project)
claude mcp add --transport http --scope user 0n3 https://0n3.app/mcp --header "Authorization: Bearer <your 0n token>"

Connect CockroachDB to

Claude Code + CockroachDBMCP server + skillClaude (desktop & claude.ai) + CockroachDBconnectorChatGPT + CockroachDBconnector · GPT actionCodex CLI + CockroachDBMCP serverGemini CLI + CockroachDBMCP serverCursor + CockroachDBMCP serverVS Code (Copilot) + CockroachDBMCP serverWindsurf + CockroachDBMCP server

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Questions

What can an AI do with the CockroachDB MCP server?

7 things: clusters. Every call runs with your own CockroachDB connection and lands on a receipt.

Do I need to run anything on my computer?

No. 0n3 is hosted. Connect CockroachDB once, install 0n3 into your AI with one line, done.

Where does my CockroachDB key go?

Into your 0n3 vault, encrypted, one record per connection. The AI never sees it.