Closed testingSide project

wolkli
See every cloud clearly.

Comparing clouds used to take days: spreadsheets, price pages, calculators, hyperscalers here and Swiss clouds there. wolkli puts them side by side and answers in milliseconds — from the command line, a terminal UI, or your AI agent.

Request access

Shared on request — a message on LinkedIn is all it takes.

Key facts

1 weekend

to build it all — the tool and every piece of its launch: the teaser, the screenshots and this page.

26,854

prices in the catalog

clouds today, hyperscalers and Swiss providers, more on the way

36 ms

to compare them all from the command line

20 ms

for an AI agent to price a whole multi-cloud stack

tools for AI agents over MCP

binary for macOS, Linux and Windows

Hyperscalers and Swiss clouds, side by side

The same server — 4 cores, 16 GB, in Switzerland — costs CHF 16 or CHF 173 a month, depending on the cloud. That is 10× apart, and nobody puts the numbers next to each other.

wolkli does: every price in one currency, with the exchange rate and the source on every line.

Catalog v8 of 2026-10-03 · 1 USD = 0.8266 CHF (ECB reference rate of 2026-10-02)

Cheapest server, 4 vCPU · 16 GBCHF per month

Provider 116.35cheapest
Provider 238.62
Provider 3101.98
Provider 4101.98
Provider 5102.20
Provider 6173.34

wolkli compute compare --vcpu 4 --ram 16 --region ch --currency CHF --top 1

Built for the keyboard

One tool, every surface. Compare offers, size a workload, spend a budget, price a whole stack, see the break-even of a commitment and filter by who owns the cloud — all on the keyboard, all instant.

wolkli's terminal UI comparing servers with 4 vCPU and 16 GB in Switzerland across six cloud providers, cheapest first, with a chart of the cheapest offer per provider.

Compare: Every offer, cheapest first.

From Terraform plan to price

Developers get the bill before they apply. wolkli reads a Terraform plan, prices it on every cloud and can fail the pull request when it costs too much.

A terminal reading a Terraform plan with 15 resources in 31 ms and pricing it across clouds in 40 ms.

wolkli failing a budget check with exit code 3 because the plan costs 640 CHF more per month than allowed.

“But Jérôme, my AI agent writes our offers.”
Don’t worry. I got you.

wolkli is built for AI agents: an MCP-compatible server with 18 tools that any agent can call. It prices a whole multi-cloud setup in about 20 ms — roughly one hummingbird wingbeat — and every number comes with its source.

Ask it for

❯the cheapest setup with the ERP pinned to Oracle
❯Kubernetes on Swiss-owned providers only
❯the cheapest region for a server
❯what changed in the latest prices

An AI agent asking for the cheapest shop setup with the ERP database on Oracle and getting a priced answer across three clouds in 20 ms.

Swiss-hosted.

No US parent.

Swiss-owned.

Your pick.

A sovereignty lens on every query: see only what runs in Switzerland, only providers without a US parent, or only Swiss-owned ones — and what that choice costs.

Sizing with the Swiss-owned lens on: two of six providers remain, and three servers start at CHF 49.05 a month.

Swiss-owned only: two of six clouds remain, and three servers still start at CHF 49.05 a month.

Fast. Sourced. Signed. Swiss.

Fast

A columnar catalog built for queries; answers come back in milliseconds.

Sourced

List prices straight from the providers, with the source URL, the exchange rate and its date on every line.

Signed

The catalog is signed and verified on download.

Swiss

Built in Switzerland, with Swiss providers next to the hyperscalers.

Tech stack

Rust
DuckDB
ratatui
MCP
axum
Ed25519

Closed testing

Closed testing is open.

Get early access and help shape what comes next.