# Develop with Catalyst

Pick a capability to start building, or jump to [Local development](https://docs.diagrid.io/develop/local-development) for the inner-loop tools.

- [AI agents](https://docs.diagrid.io/develop/agents) — Durable agents across Dapr Agents, ADK, CrewAI, LangGraph, OpenAI, Pydantic AI, Strands, Microsoft, DeepAgents.
- [Workflows](https://docs.diagrid.io/develop/workflows) — Long-running durable workflows. .NET, Go, Java, JavaScript, Python.
- [Dapr APIs](https://docs.diagrid.io/develop/dapr-apis) — State, pub/sub, bindings, service invocation. .NET, Go, Java, JavaScript, Python.
- [MCP](https://docs.diagrid.io/develop/mcp) — Build MCP servers and clients with auth and access policies.
- [Local development](https://docs.diagrid.io/develop/local-development) — Inner-loop tools: Dev Dashboard, Aspire integration.