/cli

name: cli
description: SpacetimeDB CLI reference for initializing projects, building modules, publishing databases, querying data, and managing servers
license: Apache-2.0
metadata:
  author: clockworklabs
  version: "2.0"
  role: shared
  language: all
  cursor_globs: "**/*"
  cursor_always_apply: false
triggers:
  - spacetime init
  - spacetime build
  - spacetime publish
  - spacetime dev
  - spacetime sql
  - spacetime call
  - spacetime logs
  - spacetime server
  - spacetime login
  - spacetime generate
  - how do I use the CLI
  - CLI command

SpacetimeDB CLI

Use this skill when the user needs help with the `spacetime` CLI tool - initializing projects, building modules, publishing databases, querying data, managing servers, or troubleshooting CLI issues.

Quick Reference

Project Initialization & Development

# Initialize new project
spacetime init my-project --lang rust|csharp|typescript|cpp
spacetime init my-project --template <template-id>

# Build module
spacetime build                    # release build
spacetime build --debug            # faster iteration, slower runtime

# Dev mode (auto-rebuild, auto-publish, generates bindings)
spacetime dev
spacetime dev --client-lang typescript --module-bindings-path ./client/src/module_bindings

# Generate client bindings
spacetime generate --lang typescript|csharp|rust --out-dir ./bindings --module-path ./server
spacetime generate --lang unrealcpp --uproject-dir ./MyGame --module-path ./server --unreal-module-name MyGame

Publishing & Deployment

# Publish to Maincloud (default)
spacetime publish my-database --yes

# Publish to local server
spacetime publish my-database --server local --yes

# Clear database and republish
spacetime publish my-database --delete-data=always --yes

Database Interaction

# SQL queries
spacetime sql my-database "SELECT * FROM users"
spacetime sql my-database --interactive   # REPL mode

# Call reducers (each argument is a separate positional arg)
spacetime call my-database my_reducer '"value"' '123'

# Subscribe to changes
spacetime subscribe my-database "SELECT * FROM users" --num-updates 10

# View logs
spacetime logs my-database -f              # follow logs
spacetime logs my-database -n 100          # up to 100 log lines

# Describe schema
spacetime describe my-database --json
spacetime describe my-database table users --json
spacetime describe my-database reducer my_reducer --json

Database Management

# List databases
spacetime list

# Delete database
spacetime delete my-database

# Rename database
spacetime rename <database-identity> --to new-name

Server Management

# List configured servers
spacetime server list

# Add server
spacetime server add local --url http://localhost:3000 --default
spacetime server add myserver --url https://my-spacetime.example.com

# Set default server
spacetime server set-default local

# Test connectivity
spacetime server ping local

# Start local instance
spacetime start

# Clear local data
spacetime server clear

Authentication

# Login (opens browser)
spacetime login

# Login with token
spacetime login --token <token>

# Show login status
spacetime login show

# Logout
spacetime logout

Default Servers

| Name | URL | Description | |------|-----|-------------| | `maincloud` | `https://maincloud.spacetimedb.com` | Production cloud (default) | | `local` | `http://127.0.0.1:3000` | Local development server |

Common Flags

| Flag | Short | Description | |------|-------|-------------| | `--server` | `-s` | Target server (nickname, hostname, or URL) | | `--yes` | `-y` | Non-interactive mode (skip confirmations) | | `--anonymous` | | Use anonymous identity | | `--module-path` | `-p` | Path to module project |

Troubleshooting

"Not logged in"

spacetime login
# Or use --anonymous for public operations

"Server not responding"

spacetime server ping <server>
# For local: ensure spacetime start is running

"Schema conflict"

# Clear data and republish
spacetime publish my-db --delete-data=always --yes

"Build failed"

# Check Rust/C# toolchain
rustup show
# For Rust modules, ensure wasm32-unknown-unknown target
rustup target add wasm32-unknown-unknown

Module Languages

**Server-side (modules):** Rust, C#, TypeScript, C++ **Client SDKs:** TypeScript, C#, Rust, Unreal Engine **CLI `generate` targets:** TypeScript, C#, Rust, Unreal C++