> ## Documentation Index
> Fetch the complete documentation index at: https://docs.arcyria.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Connections

> Create and test PostgreSQL, MySQL, MongoDB, Airtable, and SaaS connections in the Arcyria workspace.

Open **Connections** to create reusable database and SaaS credentials.

## Create a connection

1. Click **+ New Connection**.
2. Choose the role: Source or Destination.
3. Choose **PostgreSQL**, **MySQL**, **MongoDB**, **Airtable**, **Asana**, **Linear**, **Notion**, **GitHub**, **HubSpot**, or **Stripe**
   for a source. Choose **PostgreSQL**, **MySQL**, **MongoDB**, or **Airtable** for a
   destination.
4. Fill the connection fields.
5. Click **Test Connection**.
6. Save after the test succeeds.

## Source connections

PostgreSQL and MySQL source users should have read access to only the schemas or
databases and tables you plan to include. Airtable sources use a Personal Access
Token with schema and record read access. HubSpot sources use a read-only private app access token with
the scopes required by the selected streams. See the [HubSpot source
guide](/connections/sources/crm/hubspot). Stripe sources use a secret or
restricted read key. See the [Stripe source
guide](/connections/sources/finance/stripe). See the
[Airtable source guide](/connections/sources/productivity/airtable) and
[MySQL source guide](/connections/sources/database/mysql) for connector-specific
setup.

MongoDB sources use a complete encrypted `mongodb://` or `mongodb+srv://` URI
and a database name. Use a dedicated read-only database user. See the
[MongoDB source guide](/connections/sources/database/mongodb).

Asana sources use a Personal Access Token and store workspace/project scope on
each pipeline. See the [Asana source guide](/connections/sources/productivity/asana).

Linear Available Now sources use a Personal API Key and store team/project scope on
each pipeline. See the [Linear source guide](/connections/sources/productivity/linear).

Notion sources use an internal integration token and can read only pages and
databases shared with that integration. See the
[Notion source guide](/connections/sources/productivity/notion).

GitHub Available Now sources use a Personal Access Token and read one GitHub.com
repository per connection. See the
[GitHub source guide](/connections/sources/developer-tools/github).

## Destination connections

Destination users should have write access to pre-created destination tables.
Airtable destinations also require an explicit writable-field mapping and at
least one merge key. Arcyria validates destination contracts during
pipeline runs.

MongoDB destinations require one or more non-null Upsert keys. Pre-create a
supporting unique index for production collections. See the
[MongoDB destination guide](/connections/destinations/mongodb).

## Good operating habits

* Re-test connections after credential rotation.
* Keep source users read-only where possible.
* Keep destination table ownership and permissions explicit.