# Vastai > Vast.ai CLI to manage GPU instances, volumes, serverless endpoints, and billing. - **Type:** Skill - **Install:** `agentstack add skill-vast-ai-vast-cli-vastai` - **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior - **Seller:** [vast-ai](https://agentstack.voostack.com/s/vast-ai) - **Installs:** 0 - **Category:** [Cloud & Infrastructure](https://agentstack.voostack.com/c/cloud-infrastructure) - **Latest version:** 0.1.0 - **License:** MIT - **Upstream author:** [vast-ai](https://github.com/vast-ai) - **Source:** https://github.com/vast-ai/vast-cli/tree/master/vastai - **Website:** https://vast.ai ## Install ```sh agentstack add skill-vast-ai-vast-cli-vastai ``` Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent. ## About # vastai Manage GPU instances, templates, volumes, serverless endpoints, SSH keys, and billing on Vast.ai. > Command is `vastai` (lowercase). Always use `--raw` for machine-readable JSON output. ## Install ```bash # PyPI (recommended) pip install vastai ``` ## Quick start ```bash vastai set api-key # Authenticate (one-time); Create API Key in account at https://console.vast.ai/manage-keys/ vastai show user # Verify auth + check balance vastai create ssh-key ~/.ssh/id_ed25519.pub # Register SSH key (do BEFORE create) vastai search offers 'gpu_name=RTX_4090 num_gpus=1 verified=true direct_port_count>=1 rentable=true' -o 'dlperf_usd-' # Note the offer ID from the output vastai create instance --image pytorch/pytorch:@vastai-automatic-tag --disk 20 --ssh --direct # Automatically grab appropriate image tag; Response: {"success": true, "new_contract": } vastai show instance # Poll until actual_status == "running" (see Instance status values below) vastai ssh-url # Get SSH connection string vastai copy local:./data/ :/workspace/ # Upload files vastai destroy instance -y # Clean up (stops all billing; -y skips confirmation) ``` API key: https://console.vast.ai/manage-keys/ ## Global flags Available on every command: ``` --api-key KEY Override stored API key --raw Output machine-readable JSON (agents should always use this) --full Print full results (don't page with less) --explain Show underlying API calls (useful for debugging) --curl Show equivalent curl command --no-color Disable colored output --url URL Override server REST API URL --retry RETRY Set retry limit for API calls --version Show CLI version ``` ## Query syntax Search commands accept filter expressions. Operators: `=`, `!=`, `>`, `>=`, `=48 reliability>0.95' # Greater-than filters 'geolocation=EU dph_total # Poll single instance (use for status checks) vastai create instance --image pytorch/pytorch:2.4.0-cuda12.4-cudnn9-runtime --disk 20 --ssh --direct # Response includes "new_contract": — that is your instance ID vastai launch instance --gpu-name RTX_4090 --num-gpus 1 --image pytorch/pytorch vastai start instance # Start stopped instance vastai stop instance # Stop (preserves disk, no GPU charges) vastai reboot instance # Stop + start vastai destroy instance -y # Delete permanently (irreversible; -y required for non-interactive use) vastai destroy instances -y # Batch delete (-y skips confirmation prompt) vastai label instance --label "training-run-1" # Tag instance vastai update instance # Recreate from updated template vastai prepay instance # Deposit credits into reserved instance vastai recycle instance # Destroy + recreate ``` **Recommended Vast.ai images** (use `@vastai-automatic-tag` to get the right tag for the machine automatically; browse pre-configured models at https://vast.ai/model-library): ```bash vastai/base-image:@vastai-automatic-tag # Minimal Ubuntu base vastai/pytorch:@vastai-automatic-tag # PyTorch + CUDA vastai/linux-desktop:@vastai-automatic-tag # Linux desktop (VNC/RDP) # vLLM — set model via env vars with huggingface model example vastai create instance --image vastai/vllm:@vastai-automatic-tag --disk 40 --ssh --direct \ --env '-e MODEL_NAME=Qwen/Qwen2.5-3B-Instruct -e HF_TOKEN=hf_xxx' # ComfyUI — set model checkpoint via env vars with huggingface model example vastai create instance --image vastai/comfy:@vastai-automatic-tag --disk 40 --ssh --direct \ --env '-e CHECKPOINT_MODEL=black-forest-labs/FLUX.1-schnell -e HF_TOKEN=hf_xxx' ``` **create instance flags:** - `--image IMAGE` — Docker image - `--disk DISK` — Local disk in GB - `--ssh` / `--jupyter` — Connection type - `--direct` — Faster direct connections - `--label LABEL` — Instance label - `--env ENV` — Env vars and port mappings, e.g. `'-e TZ=UTC -p 8080:8080'` - `--onstart FILE` — Path to a startup script file - `--onstart-cmd CMD` — Startup script as inline string (for longer scripts use `--onstart` or gzip+base64 encode) - `--bid_price PRICE` — Interruptible (spot) pricing in $/hr - `--template_hash HASH` — Create from template - `--create-volume ID` — Attach new volume - `--link-volume ID` — Attach existing volume - `--cancel-unavail` — Fail if no machine available (vs. create stopped) **Instance status values:** | `actual_status` | Meaning | |-----------------|---------| | `null` | Provisioning | | `created` | Instance created, not yet provisioned | | `loading` | Image downloading / container starting | | `running` | Active — GPU charges apply | | `stopped` | Halted — disk charges only | | `frozen` | Paused with memory — GPU charges apply | | `exited` | Container process exited unexpectedly | | `rebooting` | Restarting (transient) | | `unknown` | No recent heartbeat from host | | `offline` | Host disconnected from Vast servers | > **Poll loop warning:** If `actual_status` becomes `exited`, `unknown`, or `offline` it will never reach `running`. Always add a timeout and error branch — otherwise your script loops forever while disk charges accrue. Destroy and retry with a different offer. > **Charges:** Storage charges begin at creation. GPU charges begin when status reaches `running`. ### Interruptible (spot) rentals Interruptible (spot) instances are priced below on-demand instances, but can be interrupted at any time by another user with a lower bid. Note: `search offers --type bid` exposes `min_bid`, but `create instance` defaults to **on-demand at `dph_total`** unless you pass `--bid_price `. Always pass `--bid_price` after a `--type bid` search, otherwise the instance will be rented as an on-demand instance/price instead of as an interruptible. When outbid, the instance moves to `stopped` (not destroyed) and storage charges continue. Resume by raising the bid via `update instance --bid_price`. ### Search ```bash vastai search offers # Default: verified, on-demand, sorted by score vastai search offers 'gpu_name=RTX_4090 num_gpus=1 verified=true direct_port_count>=1' -o 'dlperf_usd-' vastai search offers 'num_gpus>=4 reliability>0.99' -o 'num_gpus-' vastai search offers --type bid # Interruptible (spot) pricing vastai search offers --type reserved # Reserved pricing vastai search offers -n 'gpu_name=H100_SXM' # No default filters vastai search volumes # Search volume offers vastai search templates "pytorch" # Search templates vastai search benchmarks # Search benchmarks vastai search invoices # Search invoice history ``` **search offers flags:** `--type on-demand|reserved|bid`, `--order/-o FIELD[-]`, `--limit`, `--storage GB`, `--no-default/-n` ### SSH & File Transfer ```bash vastai ssh-url # Get ssh:// connection URL vastai scp-url # Get scp:// URL vastai attach ssh "ssh-ed25519 AAAA..." # Attach SSH key to instance vastai detach ssh # Remove SSH key (ssh_key_id from show ssh-keys) vastai show ssh-keys # List account SSH keys vastai create ssh-key ~/.ssh/id_ed25519.pub # Add SSH key from file (do BEFORE create instance) vastai create ssh-key # Generate new key if you don't have one vastai create ssh-key "ssh-ed25519 AAAA..." # Add SSH key inline vastai delete ssh-key # Remove SSH key from account vastai update ssh-key "ssh-ed25519 AAAA..." # Update SSH key value ``` **Note:** `ssh-url` returns a connection string — it does not open an interactive session. Use `$(vastai ssh-url )` to extract the URL, or parse `--raw` JSON output. ### File Copy ```bash vastai copy # Copy between instance and local vastai copy local:./data/ :/workspace/data/ # Local → instance (preferred format) vastai copy :/workspace/results/ local:./results/ # Instance → local vastai copy :/workspace/ :/workspace/ # Instance → instance # Legacy format also works: vastai copy 12345:./data ./local-data vastai cloud copy --src ./data --dst s3://bucket/path \ --instance 12345 --connection \ --transfer "Instance To Cloud" # To cloud storage (add connection in UI on settings page) vastai cancel copy # Cancel in-progress copy ``` **cloud copy flags:** `--src`, `--dst`, `--instance`, `--connection`, `--transfer` ### Logs & Exec ```bash vastai logs # Container logs (last 1000 lines) vastai logs --tail 100 # Last 100 lines vastai logs --filter "error" # Grep filter vastai execute "nvidia-smi" # Run command on instance vastai execute "ls /workspace" --schedule DAILY # Scheduled execution ``` ### Volumes ```bash vastai search volumes # Search available volume offers vastai show volumes # List your volumes vastai create volume [-s SIZE] [-n NAME] # Create volume (offer_id from search volumes) vastai clone volume [-s SIZE] # Clone volume (dest_id from search volumes) vastai delete volume # Delete volume vastai create network-volume ... # Create network volume vastai list network-volume # List network volumes vastai take snapshot --repo REPO --docker_login_user USER --docker_login_pass PASS # Snapshot instance to volume ``` ### Serverless & Deployments ```bash vastai show endpoints # List endpoint groups vastai create endpoint --name "my-ep" ... # Create endpoint vastai update endpoint ... # Update endpoint vastai delete endpoint # Delete endpoint vastai get endpt-logs # Endpoint logs vastai show workergroups # List worker groups vastai create workergroup --name "wg" ... # Create worker group vastai update workergroup ... # Update worker group vastai update workers # Rolling update of workers vastai delete workergroup # Delete worker group vastai get wrkgrp-logs # Worker group logs vastai show deployments # List deployments vastai show deployment # Deployment details vastai show deployment-versions # Version history vastai delete deployment # Delete deployment vastai show scheduled-jobs # List scheduled jobs vastai delete scheduled-job # Delete scheduled job ``` ### Templates ```bash vastai search templates "pytorch" # Search templates vastai create template --name "x" --image "img" # Create template vastai update template ... # Update template vastai delete template # Delete template ``` ### Account & API Keys ```bash vastai set api-key # Save API key locally vastai show api-key # Show a specific key vastai show api-keys # List all your API keys vastai create api-key --name "ci" --permissions '{...}' # Create restricted key vastai delete api-key # Delete key vastai reset api-key # Reset main key (get new from console) vastai show user # Account info, credit balance vastai show audit-logs # Account action history vastai show connections # Cloud storage connections vastai show ipaddrs # IP address history ``` ### Billing ```bash vastai show invoices-v1 # Charges/invoices (paginated) vastai show invoices-v1 --charges # Charges only vastai show invoices-v1 --invoices # Invoices only vastai show invoices-v1 --start-date 2026-01-01 --end-date 2026-02-01 vastai show invoices-v1 --limit 50 --latest-first vastai show deposit # Reserved instance deposit info ``` ### Teams ```bash vastai create team --name "myteam" # Create team vastai show members # List team members vastai invite member --email user@example.com # Invite member vastai remove member # Remove member vastai create team-role --name "viewer" ... # Create role vastai show team-role # Role details vastai show team-roles # List roles vastai update team-role ... # Update role vastai remove team-role # Remove role vastai destroy team # Delete team ``` ### Environment Variables ```bash vastai show env-vars # List user env vars vastai create env-var KEY val # Create env var vastai update env-var KEY newval # Update env var vastai delete env-var KEY # Delete env var ``` ### Machine Management (hosts) ```bash vastai show machines # List your machines vastai list machine # List/unlist machine on marketplace vastai show machine # Machine details vastai cleanup machine # Clean up machine state vastai schedule maint ... # Schedule maintenance window vastai cancel maint # Cancel scheduled maintenance vastai show maints # List maintenance windows vastai unlist machine # Remove from marketplace ``` ## Common errors | Error | Cause | Fix | |-------|-------|-----| | `401 Unauthorized` | Invalid or expired API key | `vastai set api-key ` | | `Insufficient credits` | Account balance too low | Add credits at https://cloud.vast.ai/billing/ | | `No offers found` | Filters too restrictive | Relax filters, try `--no-default/-n` | | `Permission denied` | SSH key not attached | `vastai create ssh-key` before `create instance` | | `Connection refused` | Instance not yet running | Poll `show instance ` until `actual_status == "running"` | | Hangs on `destroy instance` | Confirmation prompt waiting for input | Add `-y` flag: `vastai destroy instance -y` | ## URLs ### Console ``` https://console.vast.ai/instances/ # Your instances https://console.vast.ai/create/ # Search GPU offers https://console.vast.ai/manage-keys/ # Create and manage API keys https://cloud.vast.ai/billing/ # Billing ``` ### API ``` https://console.vast.ai/api/v0/instances/ # Instances endpoint https://console.vast.ai/api/v0/asks/ # Offers search ``` ### Instance Ports Acce … ## Source & license This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code. - **Author:** [vast-ai](https://github.com/vast-ai) - **Source:** [vast-ai/vast-cli](https://github.com/vast-ai/vast-cli) - **License:** MIT - **Homepage:** https://vast.ai Install and usage instructions live in the source repository linked above. ## Pricing - **Free** — Free ## Security capabilities Automated source analysis of v0.1.0 — what this tool can access: - **Network access:** yes - **Filesystem access:** no - **Shell / process execution:** no - **Environment & secrets:** no - **Dynamic code execution:** no *"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.* ## Versions - **0.1.0** — security scan: passed — Imported from the upstream source. ## Links - Listing page: https://agentstack.voostack.com/l/skill-vast-ai-vast-cli-vastai - Seller: https://agentstack.voostack.com/s/vast-ai - Browse the marketplace: https://agentstack.voostack.com/browse --- Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.