CoolVDS

coolvds.com/pricingMicroVM (Firecracker), monthly reservedcompute/coolvdsJSON compare report an error provider JSON

Free allowance: No free tier published on the pricing page; the smallest plan is SPARK XS at USD 4 a month.
Verdict: caveatusable, with a named limit or an unprobed read path
Cost: USD 4/monthparsed from the record, in USD
Identity: cardcard required, no phone
Binding limit: volume-quota1 TB of bandwidth a month on SPARK XS
Evidence: documented6 sources; a first-party page was read and the sentence quoted
Freshness: stale on 2026-11-24checked 2026-10-24 (live); stale on 2026-11-24

Free tier	No free tier published on the pricing page; the smallest plan is SPARK XS at USD 4 a month. unit none; metered on none
Price	none stated
Limits	volume-quota (binding) 1 TB of bandwidth a month on SPARK XS source The shape is the first wall: 512 MB of DDR5 RAM and 10 GB of Gen5 NVMe, with no published resize or add-on disk path on the pricing page. Volume discount is 5% from USD 300 a month.
Binding	volume-quota 512 MB of RAM is the shape ceiling under USD 5, and the next plan (SPARK S, 2 vCPU / 2 GB) is USD 7; the 1 TB traffic cap is the metered wall behind it.
Identity	card A monthly plan implies a payment method at checkout; no card, hold or debit statement was read on the pricing page. Unverified.
Egress	1 TB of bandwidth included on SPARK XS; the price of traffic beyond it is not published on the pricing page. free allowance: 1 TB
Retention	Not stated on the pricing page read; a monthly plan implies the disk persists while the plan is paid.
Interface	ssh A Firecracker microVM with a deploy flow and an order page; 'API Access' is listed only on the SPARK M plan and above, so SPARK XS has no published API.
Tooling	SSH to a Linux microVM. The site is a small operator's storefront: no SDK, no CLI and no documented API at the USD 4 tier.
Composes with	The cheapest published monthly microVM with a dedicated 1 vCPU: USD 4 a month for 1 vCPU, 512 MB and 10 GB NVMe with 1 TB of transfer. Use it where a real always-on box is wanted and 512 MB is enough, which rules out anything with a JVM, a database and an agent runtime on the same box.
Reliability	waitlist only: the order page says "All Slots Currently Occupied" and offers no order button
Notes	The number is a monthly plan price, not a rate card, so 24/7 costs exactly USD 4.00 whether the box runs or not: no multiplication is involved. NOT PURCHASABLE on 2026-10-24: the order page states 'All Slots Currently Occupied' and offers no order button, only a waitlist. The shape and price are documented and the row cannot be counted as buyable.
Evidence note	documented The plan name, price, shape and traffic allowance are quoted from the pricing page. SSH, the payment method and the overage rate are not on the page.
Parsed numbers	price USD 4 10 hours a day / month price USD 4 / month has-free-tier 0 volume-quota 1 TB

Evidence 6

date	source	what it proved
2026-10-24	coolvds.com/pricing	quoted: 'SPARK XS $4/mo - 1 vCPU (Firecracker), 512 MB DDR5 RAM, 10 GB Gen5 NVMe, 1 TB Bandwidth, 99.9% Uptime SLA'
2026-10-24	coolvds.com/pricing	plan ladder: 'SPARK S $7/mo' 2 vCPU / 2 GB / 25 GB / 2 TB; 'SPARK M $13/mo' 4 vCPU / 4 GB / 50 GB / 4 TB; 'SPARK L $25/mo' 8 vCPU / 8 GB / 100 GB / 8 TB
2026-10-24	coolvds.com/order?plan=SPARK+XS&category=microvms	payment: 'Accepted Payment Methods: Stripe, PayPal ... All major credit cards accepted'
2026-10-24	coolvds.com/	quoted: '125ms Boot Time', '$0.00 Ingress Fees', 'Firecracker MicroVMs starting at $3.90/mo' (the meta description's USD 3.90 does not match the USD 4 shown on the plan card)
2026-10-24	coolvds.com/pricing	quoted: 'Entry MicroVM SPARK XS $4/mo - 1 vCPU (Firecracker) - 512 MB DDR5 RAM - 10 GB Gen5 NVMe - 1 TB Bandwidth - 99.9% Uptime SLA'
2026-10-24	coolvds.com/pricing	quoted: 'SPARK S $7/mo - 2 vCPU (Firecracker) - 2 GB DDR5 RAM - 25 GB Gen5 NVMe - 2 TB Bandwidth'; 'SPARK M $13/mo ... API Access'

More fields 11

shape	`{"vcpu": 1,"ram_gib": 0.5,"disk_gib": 10,"gpu_class": null,"gpu_count": null}`
billing model	monthly
term	monthly
m10h usd	4.0
m24h usd	4.0
price arithmetic	Monthly plan: USD 4.00 a month bills whether it runs or not, so 24/7 = USD 4.00 and 10 h/day = USD 4.00. No hourly rate is published.
free tier kind	none
network out	`{"allow_outbound": true,"allow_inbound_listen": null,"ports": "not published on the pricing page","static_ip": null,"ipv6": null,"per_session_bytes": null}`
session cap	`{"wall_clock_min": null,"idle_reap_s": null,"restart_required": false,"note": "none published; a monthly plan"}`
aggregator gross usd month	4.0
aggregator note	sandboxprices.com ranks CoolVDS #11 at USD 4.00 gross for this same SPARK XS shape; the two agree exactly because the product is a fixed monthly plan.

Unknown values 1

per object cap stated: the field does not apply to this kind of offer