Self-hosted apps that integrate with Microsoft Sentinel

3 open-source, self-hostable projects list Microsoft Sentinel as an integration.

• mattermostMattermost is a self-hosted collaboration platform with channels, threads, file sharing, voice calls and playbooks for DevSecOps, IT service desk and incident response.
• AiSOCSelf-hosted, open-source AI SOC with 2,535 detection rules and agents that record every step in an auditable ledger. MIT licensed, no API keys needed.
• aisecuritygatewaySelf-hosted AI gateway that redacts PII, blocks prompt injection, and routes to 8 LLM providers via OpenAI-compatible API.