v2.3.1 is out · UI performance improvements
VirtuProbe Studio
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Pricing · clear numbers, no quoting games

Hands-on protocol testing.
The workbench is free, the rest of the stack is paid.

Two paths: Engineering for shipping integrations, Security for breaking them.

We charge for the heavy machinery. Agent access over MCP, the AI assistant, OAuth2, GraphQL, collection import and directory-backed GIT workspaces are free, forever. You can switch tier whenever you like, and nothing is deleted when you downgrade.

EUR · billed via Paddle · Annual saves ~20% · 3 devices per license
Workbench
€0 forever
No account needed.

Build, chain and run probes against your own systems.

  • HTTP, DNS, SMTP probes + chaining across them
  • Agent access over MCP: your coding agent authors and runs the tests
  • Unlimited probes, bundles & chains
  • AI assistant: bring your own key (no token charge)
  • Full API auth: OAuth2 (every flow), Basic, Bearer, API key, Digest
  • GraphQL requests
  • Import OpenAPI / Postman / Bruno / HAR / Insomnia / cURL
  • Directory-backed GIT workspaces
  • Run history, diff & JSON evidence export
  • No account, no cloud, runs locally
Download
Forever free
per user · for shipping integrations
Engineering
€19 /mo · billed yearly
€229 / user / year  save €48/yr
or €23 month-to-month

Build and test integrations across the protocols your stack actually speaks. The signup-flow test you have been writing in bash.

  • Everything in Workbench
  • IMAP, LDAP stateful protocols (Action Mode forms)
  • MySQL / MariaDB, MongoDB & PostgreSQL, query & assert on the database
  • MCP server testing (Model Context Protocol)
  • Full scripting (JavaScript and Groovy, with code editor)
  • Test suites: run an ordered set of chains with setup and teardown, one verdict, and a JUnit report for CI
  • Skills: name a chain or script as a capability an agent can call, with a fixed input contract
  • MITM proxy & interception (TLS termination)
  • Service virtualization: mock rules in the proxy, so you can answer for a dependency that is down or does not exist yet
  • Enterprise & Windows auth (NTLM, PtH, SPNEGO/Kerberos, AWS SigV4)
  • Library: generic APIs, integrations, cloud SDKs, infrastructure (Kubernetes, Docker, Vault, Prometheus, Elasticsearch)
Start Engineering
€229 / user / year
per user · for breaking them
Security
€39 /mo · billed yearly
€469 / user / year  save €119/yr
or €49 month-to-month

Everything Engineering has, plus the offensive kit. Hands-on pentesting across HTTP, mail, directory, and storage protocols.

  • Everything in Engineering (mocking, MITM proxy, databases, scripting, the lot)
  • Fuzzing & iterators
  • Raw byte-for-byte requests & request-smuggling detection
  • SMB protocol
  • Kerberos probe (AS-REP Roasting, Kerberoasting)
  • SpamAssassin (mail security testing)
  • Pentest libraries (per-protocol + domain-specific)
Start Security
€469 / user / year
Enterprise
Let's talk
Pricing per contract · full enterprise support.
Per organisation · unlimited users

For organisations whose security review starts at "where does the binary run?". It runs on your infrastructure, inside your domain, under your rules.

  • Everything in Security
  • Execution server deployed in your own environment, as many as you need
  • SSO, SLA, custom contracts
  • Custom protocol modules, built to order for what you are testing
  • Priority support
  • Unlimited users
Contact sales
Per organisation

Don't see your protocol?

Missing a protocol you'd like in the mix?

No problem, and no plugin for you to write. Every protocol in VirtuProbe is hand-rolled against its RFC, and the module ecosystem is built to grow. A protocol we don't ship yet isn't a wall. It's something we can add for you. Tell us what you need and we'll build it in.

Want to try a paid tier first?

Ask for a 14 day demo.

The Free workbench is yours for good, but it only covers HTTP, DNS and SMTP. If you want to point the paid protocols, the proxy or the fuzzer at your own systems before you decide, write to hello@virtuprobe.studio and say which tier you want to evaluate. You get a key for 14 full days, no card, no call.

How licensing works

One license per user. Three devices each.

Every paid license is for one person, who can install and activate VirtuProbe on up to three of their own devices: laptop, desktop, a VM, whatever you work on. No floating seats, no per-device upsell.

Three covers most people. From my own setup I know it does not always, so if you work across more machines than that, write to hello@virtuprobe.studio and we will raise your limit.

Need to cover more people? Buy a license each. Enterprise is per organisation: unlimited users inside your domain, one invoice, one SSO config.

01One person. Buy a Security license and activate it on your laptop, your desktop and a throwaway VM. Three devices, one you.
02A team. Five pentesters? Buy five licenses, and each person gets their own, three devices apiece.
03Growing. Add licenses whenever you need them, prorated to your renewal anniversary.
04Whole org. Go Enterprise: unlimited users in your domain, one contract.

Frequently asked, honestly answered

Questions worth asking.

Can I switch between Engineering and Security tiers?

Yes, anytime. If you're already on Engineering and need fuzzing or the security protocols (SMB, Kerberos, SpamAssassin) for a specific engagement, upgrade to Security for that month and downgrade back. No commitment.

What's the difference between Engineering and Security?

Engineering is for building and testing your own integrations, whether that is APIs, email flows, LDAP-backed auth or cloud services, with the MITM proxy and service-virtualization mocks for debugging and standing in for unfinished services. Security adds the offensive kit: fuzzing, the security protocol suite (SMB, Kerberos, SpamAssassin) and the pentest libraries. Different jobs, different tools.

Can I try a paid tier before buying?

Yes. Write to hello@virtuprobe.studio, tell us which tier you want to evaluate, and we will issue a 14 day demo key for it. No card, and nothing to cancel when it runs out: the app drops back to the Free workbench on its own and your data stays where it is.

Do you offer free access for students or academics?

Yes. The VirtuProbe Academic License gives full Security tier access free, with verification (institutional .edu email, enrolment letter, or faculty page). Apply at /academic.

What happens if I downgrade?

Your data stays. Features above your new tier become read-only until you re-upgrade. Nothing is deleted.

Do you have GDPR / data residency options?

Yes. VirtuProbe runs as a desktop app and keeps all your data locally on your own machine, in your own jurisdiction. Nothing is stored in our cloud.

Where does the binary run?

On your own machine. VirtuProbe ships as a desktop app (macOS, Linux, Windows) with everything it needs in the one install, so there is no server to stand up and no cloud round-trip. Your workspaces and data stay local.

Do you take card or invoice?

Free / Engineering / Security: card via Paddle. Enterprise: invoice with PO, net-30 default, custom terms negotiable.

Can I export my probes if I cancel?

Yes. Probes and chains are local files in a documented format. Export from the app at any time, including after your license expires (Free tier permissions still apply).

Start with Free. Pick a path when you need it.

Most backend devs land on Engineering within a week. Most security folks land on Security within an hour. Most CISOs land on Enterprise after one procurement call.

Download Free Start Engineering Start Security Talk to sales
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Payment successful

Save your access key, because you'll enter it in VirtuProbe alongside your email to activate your license.

Access Key

Open VirtuProbe Studio, click the License item in the sidebar, enter your email and this key, then click Activate.

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