Deployment providers

Use cast deploy <agent> --provider <key> to deploy to a specific platform. If you omit --provider, Cast prompts interactively. Auto-generated from PROVIDERS in typescript/cast-cli/src/commands/deploy.ts.

Provider	Description	On-host TUI
DigitalOcean `--provider digitalocean`	Droplet with Docker container hosting	supported
DigitalOcean MicroVM `--provider microvm`	Firecracker microVM in MKC1. Pauses when idle, resumes on the next request.	supported
Docker (local) `--provider docker`	Self-hosted Docker container on this machine	no
Fly.io `--provider fly`	Distributed containers close to your users	no
Local (no container) `--provider local`	Run the agent directly on this machine without Docker	no
Railway `--provider railway`	Managed containers with automatic deployments	no
Sprites `--provider sprites`	Persistent Firecracker VMs on Fly.io (sprites.dev)	no

DigitalOcean --provider digitalocean

Droplet with Docker container hosting

Required CLI	`doctl` installation guide
Authenticate with	`doctl auth init`
Token env var	`DIGITALOCEAN_ACCESS_TOKEN`
Bundles on-host TUI	yes — use `--with-tui`

Example: deploy an agent

cast deploy <agent-name> --provider digitalocean

DigitalOcean MicroVM --provider microvm

Firecracker microVM in MKC1. Pauses when idle, resumes on the next request.

Required CLI	`doctl` installation guide
Authenticate with	`doctl auth init`
Token env var	`DIGITALOCEAN_ACCESS_TOKEN`
Bundles on-host TUI	yes — use `--with-tui`

Example: deploy an agent

cast deploy <agent-name> --provider microvm

Docker (local) --provider docker

Self-hosted Docker container on this machine

Required CLI	`docker` installation guide
Bundles on-host TUI	no

Example: deploy an agent

cast deploy <agent-name> --provider docker

Fly.io --provider fly

Distributed containers close to your users

Required CLI	`flyctl` installation guide
Authenticate with	`flyctl auth login`
Bundles on-host TUI	no

Example: deploy an agent

cast deploy <agent-name> --provider fly

Local (no container) --provider local

Run the agent directly on this machine without Docker

Bundles on-host TUI	no

Railway --provider railway

Managed containers with automatic deployments

Required CLI	`railway` installation guide
Authenticate with	`railway login`
Bundles on-host TUI	no

Example: deploy an agent

cast deploy <agent-name> --provider railway

Sprites --provider sprites

Persistent Firecracker VMs on Fly.io (sprites.dev)

Required CLI	`sprite` installation guide
Authenticate with	`sprite login`
Token env var	`SPRITES_TOKEN`
Bundles on-host TUI	no

Example: deploy an agent

cast deploy <agent-name> --provider sprites