Ask your Postgres database a plain-English question, get verified SQL and a chart
Watch Chion connect to a live PostgreSQL database with read-only credentials, profile every table automatically, and turn one plain-English question into SELECT-only SQL you can read line by line. The query stays visible under the chart, so every number is auditable.
Chion lets you ask in plain English and see verified read-only SQL behind every answer: no template to build, no SQL to write.
Problem. Most text-to-SQL demos hide the schema-discovery step. What Chion does. Chion connecting to PostgreSQL, reading the schema, and answering a plain-English question with verified SQL and a chart. Unlike the build-it-yourself templates and tutorials, this is a finished product: the SQL runs read-only and stays visible, with nothing to host.
Published ·46s
Want a walkthrough on your own schema?
Watch one English question become an auditable SQL query in 46 seconds
Reads your schema automatically: no manual table mapping
Chion connects to a PostgreSQL fixture database and classifies every table, column, and relationship on its own: dates, metrics, categories, foreign keys. No manual table mapping, no pre-recording, no fakes; the pipeline you see is the production pipeline.
Generates SELECT-only SQL: it can never write to your database
All generated SQL is restricted to SELECT statements with LIMIT enforcement at the validator layer. INSERT, UPDATE, DELETE, and DDL operations are blocked in code, not by LLM instruction. The two-layer validator runs before any query touches your database. Read-only SELECT. AES-256-GCM credential vault. 1,000-row cap. Immutable audit log.
Keeps the SQL visible under the chart, so every number is auditable
The verified SQL is rendered below the chart on every render. Every aggregation, join, and filter is inspectable; copy the query into psql and reproduce the chart yourself in seconds.
Read transcript
00:00Step 1, Connect Your Data. Point Chion at your PostgreSQL database and supply read-only credentials. Setup takes minutes and requires no infrastructure changes on your end.
00:10Step 2, Automatic Discovery. Chion scans every table, column, and relationship in your schema. It classifies each field (dates, metrics, categories, foreign keys) and assembles a semantic catalog of your data automatically.
00:21Step 3, Ask Your Data. Ask any analytical question in plain English. Chion drafts a verified SELECT query, runs it read-only against your database, and renders the result as an interactive D3 chart with the underlying SQL displayed beneath it.
00:36The SQL is always visible, always auditable. Every number you see on the chart traces back to a query you can copy and execute in psql yourself. That auditability is the entire point: business intelligence engineering teams can verify, not a black box.
Frequently asked questions
Common questions about Chion demos and the underlying product.