# Agent checks

- [About Agent checks](/5.1/develop/developer-guides/agent_check/agent_checks.md): StackState Self-hosted v5.1.x
- [Agent check API](/5.1/develop/developer-guides/agent_check/agent-check-api.md): StackState Self-hosted v5.1.x
- [Agent check state](/5.1/develop/developer-guides/agent_check/agent-check-state.md): StackState Self-hosted v5.1.x
- [How to develop Agent checks](/5.1/develop/developer-guides/agent_check/how_to_develop_agent_checks.md): StackState Self-hosted v5.1.x
- [Connect an Agent check to StackState](/5.1/develop/developer-guides/agent_check/connect_agent_check_with_stackstate.md): StackState Self-hosted v5.1.x