Hermes VPS Requirements & Benchmark Methodology (2026)

Bottom line: we're building a reproducible benchmark for running Hermes (and n8n, Uptime Kuma, and similar self-hosted automation) on a VPS. This page is the methodology. It does not list fabricated provider scores — only genuinely tested providers will ever appear below, each with a linked raw result file.

Why the honesty matters: most "VPS benchmark" articles invent uptime and throughput figures to push affiliate links. We don't. Every number we publish has a reproducible command behind it, and a provider is only marked TESTED if we actually ran the harness on a live box — at $0 cost, using only existing free credits. Anything else is labeled UNTESTED / ESTIMATED and kept clearly separate.

What actually matters for a Hermes box

Self-hosted agent stacks are not like a simple WordPress blog. They stay resident (a gateway holds an in-memory session + tool runtime), they do bursts of CPU work during thinking/compaction, and they hold RAM for the session history. The three things that matter most:

Resource	Why it matters	Rough floor (estimate)
CPU cores	agent reasoning, compaction, concurrent tool calls	2 vCPU comfortable; 1 vCPU is workable for a single user
RAM	session history, Node runtime, Docker (n8n), caching	2 GB minimum for Hermes + n8n; 4 GB comfortable
Disk	SSD-backed for compactions + Docker images	NVMe strongly preferred over spinning disk

These are engineering estimates from how agent runtimes behave, not measured benchmark claims. Verified results will be added below as providers get tested for $0.

How we measure (the harness)

We measure with a portable, zero-cost, reproducible script set. The same harness runs on any Linux box — it needs no paid account and no special agent. The probes:

01 · System facts — OS, arch, CPU model + cores, total RAM, disk availability, virtualization. An oversold 1-core box will not hold a live agent gateway, and this shows it.

02 · CPU & memory probe — single-thread CPU loop plus memory write/read bandwidth. This reflects agent thinking and compaction load.

03 · Hermes-stack probe — Docker, Node, Python availability and container count. Most self-host stacks (Hermes, n8n, Kuma) run in containers.

Get the benchmark harness on GitHub →

Tested providers

None yet. The methodology page only gains a provider row after the harness actually runs on that provider's box using $0 existing credit, with the raw JSON result linked and the box destroyed afterward at $0 balance. When we have real numbers, they go here — and nowhere else.

UNTESTEDCurrent status: we set up our first candidate canary (DigitalOcean) but it did not pass the $0 gate — DO requires a credit card on file to create a droplet, which carries a charge risk. Per our zero-spend rule, that test is skipped. The page will gain a "tested" provider only when a genuinely $0 out-of-pocket run is available.

Full requirements reference

New to VPS sizing? See How much RAM does your VPS actually need and VPS vs shared hosting. For self-hosting n8n specifically, see Best VPS for n8n 2026.

Affiliate disclosure: where a recommendation links to a VPS provider, signing up through the link may earn us a commission. It never affects whether a provider gets a "tested" badge — those are earned by the harness only.