# Source Agent > Source Agent is an AI interface for PostgreSQL. Ask in plain English, inspect the schema, get the SQL and results, and approve writes before they run. Source Agent is a web studio for talking to PostgreSQL in plain English. An agent inspects schema, writes SQL, shows its work, and pauses on writes until a human approves them. Bring your own AI provider and key. ## Product - [Source Agent homepage](https://sourceagent.d3labs.tech/): Talk to your data. Let an agent handle the SQL. - [Features](https://sourceagent.d3labs.tech/#feature): schema-aware SQL generation, tool calling, and write approval - [How it works](https://sourceagent.d3labs.tech/#how-it-works): connect Postgres, inspect schema, then ask - [FAQ](https://sourceagent.d3labs.tech/#faq): databases supported, privacy, write safety, and models - [Create an account](https://sourceagent.d3labs.tech/register): open the studio - [Sign in](https://sourceagent.d3labs.tech/login) ## Answers - How does Source Agent connect to my database? Add a PostgreSQL connection string. Source Agent inspects tables, columns, primary keys, and foreign keys - then uses that schema to answer questions. - Which databases are supported? PostgreSQL. The tools read Postgres catalogs for schema, keys, and relationships. - Does the model see my whole database? It sees what the tools return: table lists, schemas, samples, and query results. Credentials are encrypted at rest. - Why does it stop on UPDATE or DELETE? Write queries pause the agent. You approve or reject the SQL before it runs against your database. - Which models can I use? Bring your own provider and key. Configure it in the studio and the agent binds tools to that model. - Where do I start? Create an account, add a database, pick a model, and ask something your schema can actually answer. ## Constraints - Databases: PostgreSQL only - Writes: UPDATE and DELETE wait for explicit approval - Auth and workspace routes under /app are private and should not be cited as public docs ## Optional - [llms-full.txt](https://sourceagent.d3labs.tech/llms-full.txt) - [Sitemap](https://sourceagent.d3labs.tech/sitemap.xml)