# Agents

## [Reference agent](https://github.com/hasura/graphql-engine/tree/master/dc-agents/reference)

The reference agent is a good starting point if you want to build your own connector or consider using the SQLite agent.

## OLTP

[OLTP guide](guides/OLTP.md)

- SQLite
  - [Docs](https://github.com/hasura/graphql-engine/tree/master/dc-agents/sqlite#data-connector-agent-for-sqlite)
  - [Repo](https://github.com/hasura/graphql-engine/tree/master/dc-agents/sqlite)
- PostgreSQL
  - [Docs](https://hasura.io/docs/latest/databases/postgres/index/)
  - [Repo](https://github.com/hasura/graphql-engine/tree/master/server)
- [MariaDB](https://hasura.io/docs/latest/databases/mariadb/index/)
- [MySQL](https://hasura.io/docs/latest/databases/mysql/index/)
- [Oracle](https://hasura.io/docs/latest/databases/oracle/index/)
- [SQL Server](https://hasura.io/docs/latest/databases/ms-sql-server/index/)

## OLAP

[OLAP guide](guides/OLAP.md)

- [Athena](https://hasura.io/docs/latest/databases/athena/index/)
- [BigQuery](https://hasura.io/docs/latest/databases/bigquery/index/)
- [Snowflake](https://hasura.io/docs/latest/databases/snowflake/index/)
- Clickhouse (Coming soon...)

## Vector

- Weaviate (Coming soon...)

## NoSQL

[NoSQL guide](guides/NoSQL.md)

- [Mongo](https://hasura.io/docs/latest/databases/mongodb/index/)

## API's

- Github (Coming soon...)
- Prometheus (Coming soon...)
- Salesforce (Coming soon...)
- Zendesk (Coming soon...)