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This guide walks through connecting a SQLite file to Codex (OpenAI’s terminal coding agent) using QueryBear’s managed MCP server.

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What you’ll need

  • A QueryBear account (sign up free)
  • A SQLite file
  • Codex CLI installed

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Step 1: Add the SQLite connection to QueryBear

Dashboard → Connections → New connection → SQLite, with the file path.

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Step 2: Add QueryBear to Codex

~/.codex/config.toml: 
[mcp_servers.querybear]
type = "http"
url = "https://mcp.querybear.com/mcp"
Restart the Codex CLI.

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Step 3: Authorize and verify

Start a Codex session. First tool call opens OAuth in browser.
“What QueryBear tools do you have? List my connections.”

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Try it

“In the local analytics.sqlite DB, give me daily active users for the last 30 days.”

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SQLite + Codex gotchas

  • TOML typos silently disable the server. Re-check the block if querybear doesn’t appear in the tool list.
  • Restart Codex CLI fully after editing config.
  • ATTACH DATABASE is blocked at the parser.
  • Most PRAGMA statements are restricted to safe ones.