The August 2025 Release of the RheinInsights Retrieval Suite Brings OpenSearch and Slack as Search Providers

August 1st, 2025

The current release of the RheinInsights Retrieval Suite brings a new search engine integration: Slack.

OpenSearch is a leading open source search engine, and our Retrieval Suite now supports both vector search and keyword search with OpenSearch. This enables our customers to use our Enterprise Search connectors to securely index their corporate knowledge in OpenSearch.
OpenSearch can also be used with our query pipelines and search integrations, whether for traditional enterprise search or for retrieval augmented generation in bot applications (with grounding).

Also from now on, you can use Slack as a search provider. You can therefore still use the Slack chat messages within our Retrieval Augmented Generation Pipeline to generate meaningful answers. Use cases are for instance answers for IT support questions, knowledge retrieval for projects or for general organizational questions.

Such a pipeline can then be integrated into other applications, for example, as an MCP application or as a bot (or together with other knowledge sources as a Slack bot).

For more details, please refer to Documentation - Slack as Search Provider in our documentation.

Some background. After Slack changed the rate limiting for important APIs to aggressively low limits, it renders access to chat information for new apps as being impossible. Existing applications are not affected - as long as these are not deleted and recreated.