Query Streams

Query Streams lets Claude query the databases behind your firewall without a VPN, an inbound port, or a database credential ever leaving your network.

A small Network Agent installed next to your data makes one outbound connection. Claude writes the SQL; the agent runs it where the data lives and is read-only by design: only SELECT, WITH and EXPLAIN run, and the check happens on your side of the connection, not in the cloud.

New: the agent now does the heavy lifting, so Claude spends its attention on the thinking. Before reading a large table, Claude can ask for its shape: row count, token cost and how many rows fit, with no rows sent. It can ask for a profile instead of rows: counts, empties, ranges, averages and top values for every column, in one pass. A result can be held on the agent, so "break it down by region" is answered without a second database query. Answers are sized to Claude's budget: whole rows kept, long text trimmed with the full value one call away, anything left out reported. Deeper analyses run over a held result: data-quality report, anomalies, segments, comparison and diff between two runs.

Sources: SQL Server, PostgreSQL, MySQL, MariaDB, Oracle, BigQuery, Snowflake, SQLite, DuckDB, Microsoft Access, folders of CSV, Parquet, Excel and log files, and API sources such as Stripe, Shopify, HubSpot, Google Analytics, Google Ads and Google Search Console.

Semantic Intelligence gives Claude the meaning: a description for every table and column, status codes decoded and joins discovered where no foreign keys are declared, so Claude writes correct SQL first time. Saved and federated queries are available by name.

Access is per user and per organization with read, analyze and execute scopes, instant revocation and a log of every call.

Works on every Query Streams plan, including Free. The analytic toolset is included from Personal Core and the deeper analyses from Business Core. Requires the Network Agent installed next to your data.