# References

API, CLI, component, MCP, and policy reference material for Catalyst and the Dapr Ops Dashboard.

- [CLI](https://docs.diagrid.io/references/catalyst/catalyst-cli-intro) — Manage projects, apps, agents, MCP servers, components, and more from the command line.
- [App API](https://docs.diagrid.io/api/catalyst-apis) — The app-facing Dapr building-block APIs — pubsub, state, workflows, service invocation, jobs, secrets, and conversation.
- [Control Plane API](https://docs.diagrid.io/api/control-plane/catalyst) — Management API for projects, apps, components, connections, policies, agents, and MCP servers.
- [Components spec](https://docs.diagrid.io/references/catalyst/components-reference/intro) — Full spec for all Dapr component types supported by Catalyst.
- [MCP servers](https://docs.diagrid.io/references/mcp-servers) — Endpoints and schemas for the MCP servers Catalyst exposes (the Catalog).
- [Policies](https://docs.diagrid.io/references/policies) — Policy types, expression syntax, and examples for Catalyst access policies.
- [Release notes](https://docs.diagrid.io/references/catalyst/release-notes) — Changelog and known issues for the Catalyst platform.
- [Glossary](https://docs.diagrid.io/references/glossary) — Catalyst and Dapr terminology — a single index of the terms used across these docs.
- [Troubleshooting / FAQ](https://docs.diagrid.io/references/troubleshooting) — Common issues for install, login, CLI, agents, workflows, and local development.