---
title: "ktx connection"
description: "Add, list, test, and map data sources."
---

Manage database and source connections in your KTX project. Connections define how KTX reaches your data warehouse, BI tools, and context sources.

## Command signature

```bash
ktx connection <subcommand> [options]
```

## Subcommands

| Subcommand | Description |
|-----------|-------------|
| `list` | List configured connections |
| `test <connectionId>` | Test a configured connection |
| `add <driver> <connectionId>` | Add or replace a configured connection |
| `remove <connectionId>` | Remove a configured connection from `ktx.yaml` |
| `map <sourceConnectionId>` | Refresh and validate BI-to-warehouse mappings |
| `mapping list <connectionId>` | List Metabase database mappings |
| `mapping set <connectionId> <field> <assignment>` | Set a Metabase or Looker warehouse mapping |
| `mapping apply-bulk <connectionId>` | Apply mappings from JSON |
| `mapping set-sync-enabled <connectionId> <dbId>` | Enable or disable sync for one Metabase database |
| `mapping sync-state get <connectionId>` | Read sync-state selection |
| `mapping sync-state set <connectionId>` | Write sync-state selection |
| `mapping refresh <connectionId>` | Refresh Metabase database mappings |
| `mapping validate <connectionId>` | Validate Metabase database mappings |
| `mapping clear <connectionId> [dbId]` | Clear Metabase database mappings |
| `metabase setup` | Guided setup for a Metabase connection |
| `notion pick <connectionId>` | Pick Notion root pages for a configured Notion connection |

## Options

### `connection add`

| Flag | Description | Default |
|------|-------------|---------|
| `--url <url>` | Connection URL, `env:NAME`, or `file:/path` reference | — |
| `--schema <schema>` | Schema to include; repeatable | — |
| `--readonly` | Mark the connection as read-only | `false` |
| `--force` | Replace an existing connection | `false` |
| `--allow-literal-credentials` | Allow writing a literal credential URL to `ktx.yaml` | `false` |

#### Notion-specific options for `connection add`

| Flag | Description | Default |
|------|-------------|---------|
| `--token-env <name>` | Environment variable containing Notion auth token | — |
| `--token-file <path>` | File containing Notion auth token | — |
| `--crawl-mode <mode>` | Notion crawl mode (`all_accessible` or `selected_roots`) | `selected_roots` |
| `--root-page-id <id>` | Root page to crawl; repeatable | — |
| `--root-database-id <id>` | Root database to crawl; repeatable | — |
| `--root-data-source-id <id>` | Root data source to crawl; repeatable | — |
| `--max-pages <n>` | Maximum pages per run | — |
| `--max-knowledge-creates <n>` | Maximum knowledge creates per run | — |
| `--max-knowledge-updates <n>` | Maximum knowledge updates per run | — |

### `connection remove`

| Flag | Description | Default |
|------|-------------|---------|
| `--force` | Remove without prompting | `false` |
| `--no-input` | Disable interactive terminal input | — |

### `connection map`

| Flag | Description | Default |
|------|-------------|---------|
| `--json` | Print JSON output | `false` |

### `connection mapping` subcommands

| Flag | Subcommand | Description | Default |
|------|-----------|-------------|---------|
| `--json` | `list`, `sync-state get` | Print JSON output | `false` |
| `--file <path>` | `apply-bulk` | JSON mapping file (required) | — |
| `--enabled <value>` | `set-sync-enabled` | `true` or `false` (required) | — |
| `--mode <mode>` | `sync-state set` | `ALL`, `ONLY`, or `EXCEPT` (required) | — |
| `--collections <ids>` | `sync-state set` | Comma-separated collection ids | — |
| `--items <ids>` | `sync-state set` | Comma-separated item ids | — |
| `--tag-names <names>` | `sync-state set` | Comma-separated tag names | — |
| `--auto-accept` | `refresh` | Accept refresh changes without prompting | `false` |

### `connection metabase setup`

| Flag | Description | Default |
|------|-------------|---------|
| `--id <connectionId>` | KTX connection id to write | — |
| `--url <url>` | Metabase API URL | — |
| `--api-key <key>` | Metabase API key | — |
| `--mint-api-key` | Mint a Metabase API key with credentials | `false` |
| `--username <email>` | Metabase admin username for API-key minting | — |
| `--password <password>` | Metabase admin password for API-key minting | — |
| `--map <id=target>` | Assign a Metabase database id to a warehouse connection; repeatable | — |
| `--sync <metabaseDatabaseId>` | Enable sync for a discovered database; repeatable | — |
| `--sync-mode <mode>` | Metabase sync selection mode (`ALL`, `ONLY`, or `EXCEPT`) | `ALL` |
| `--run-ingest` | Run ingest after setup | `false` |
| `--yes` | Confirm and apply setup changes without prompting | `false` |
| `--no-input` | Disable interactive terminal input | — |

### `connection notion pick`

| Flag | Description | Default |
|------|-------------|---------|
| `--no-input` | Disable interactive terminal input | — |
| `--root-page-id <id>` | Root page UUID to crawl; repeatable (required with `--no-input`) | — |

## Examples

```bash
# List all configured connections
ktx connection list

# Add a Postgres connection using an environment variable
ktx connection add postgres my-warehouse --url "env:DATABASE_URL"

# Add a Postgres connection with specific schemas
ktx connection add postgres analytics --url "env:PG_URL" --schema public --schema analytics

# Add a read-only Snowflake connection
ktx connection add snowflake sf-prod --url "env:SNOWFLAKE_URL" --readonly

# Test a connection
ktx connection test my-warehouse

# Remove a connection
ktx connection remove old-warehouse

# Add a Notion source connection
ktx connection add notion my-notion \
  --token-env NOTION_TOKEN \
  --crawl-mode selected_roots \
  --root-page-id abc123def456...

# Run guided Metabase setup
ktx connection metabase setup --url https://metabase.example.com

# Map a BI database to a warehouse connection
ktx connection mapping set metabase-prod databaseMappings 1=my-warehouse

# Refresh Metabase mappings
ktx connection mapping refresh metabase-prod --auto-accept

# Pick Notion root pages interactively
ktx connection notion pick my-notion
```

## Output

Interactive commands render prompts and status text. Commands with `--json` return machine-readable JSON suitable for scripts and agents.

```json
{
  "connections": [
    {
      "id": "my-warehouse",
      "driver": "postgres",
      "readonly": false
    }
  ]
}
```

## Common errors

| Error | Cause | Recovery |
|-------|-------|----------|
| Connection test fails | Credentials, network access, database, warehouse, or schema is invalid | Verify the same URL with the database's native client, then rerun `ktx connection add ... --force` |
| Literal credentials rejected | KTX avoids writing raw secrets to `ktx.yaml` by default | Use `env:NAME` or `file:/path/to/secret`; use `--allow-literal-credentials` only for local throwaway projects |
| Mapping validation fails | BI database mappings do not point at valid warehouse connections | Run `ktx connection mapping refresh <connectionId> --auto-accept`, then set invalid mappings explicitly |
| Notion pick cannot run non-interactively | `--no-input` was used without root page or database ids | Pass `--root-page-id`, `--root-database-id`, or `--root-data-source-id` with `--no-input` |