VirtuProbe Studio
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Test everything your stack talks to - you and the agents you supervise.

A signup goes out over HTTP, the confirmation arrives over IMAP and the account has to land in MongoDB. You build that as one chain, which can mix any of sixteen protocols. On an Enterprise deployment, a suite of those chains, with setup and teardown around them, runs in CI and returns a JUnit report. An agent connected over MCP (the Model Context Protocol) can build and run chains and suites as well, without ever being handed a secret.

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No account · No cloud · Runs on your machine

HTTPSMTPIMAPLDAPDNSSMBKerberosSpamAssassinMySQLMongoDBPostgreSQLSQL ServerRedisFTPSTOMPFreestyle
VirtuProbe Studio: when the API and the database disagree More videos on YouTube
Import Bring an existing collection across from another tool.
import OpenAPI · Postman · Bruno · HAR · .http · Insomnia · cURL

Screenshots

HTTP probe editor with body, params, headers, cookies tabs and live response
Probe editor

Prepare your request per protocol in a professional request editor. More complicated protocols offer a simplified mode you can use to set up your request without the need to read the RFC.

Chain editor showing a multi-step flow passing data between protocols
Chain editor

Drop probes into a sequence and pass data between steps with {{variables}}, then branch on a response, loop over a list or fan out in parallel.

Credential store dialog with the auth scheme picker open
Credential store

All credential types are supported for every protocol we offer. Credentials are tied to the environment, so everything can easily be switched without the need to touch any probe setup.

HTTP probe Body tab in GraphQL mode with Query and Variables editors
GraphQL

The query and the variables get an editor each and are serialized into the request body. From there you can chain, script or fuzz the request like any other HTTP call.

MITM proxy view showing intercepted requests with raw HTTP request and response
MITM proxy

Install the CA certificate, point your client at :1080 and every flow lands in the table, filterable by host, status class or method. Promote any line to a saved probe and it can go into a chain like any other.

Proxy interception rules editor with a MOCK rule returning a synthetic response
Mock rules

Pick a request the proxy has seen and define what comes back instead: a 503, a slow reply, a body for a service nobody has built yet. Rules match top to bottom and the first hit wins.

Script editor in the Scripts view with a JavaScript script that sends a probe through vp.send and logs the result
Script editor

Scripts run as JavaScript in an editor that highlights, completes and checks as you type. A script sends probes through vp.send(…) and reads what comes back.

Agent Activity panel with a coding agent allowed in the Checkout project and its Checkout flow run passing all three steps
Agent Activity

An agent connected over MCP shows up here with the runs it starts, step by step as they happen. You approve which projects it can reach before it can change or run anything. You can block it while it is working.

What's inside

One workbench for the whole stack.

Sixteen protocols

Chain HTTP, mail, LDAP, SMB, Kerberos and five databases in a single test.

Supervised agents

An agent builds and runs tests over MCP, inside the projects you approve.

Proxy and mocking

Intercept traffic, then mock a dependency that is down or not built yet.

Byte-level fuzzing

Send malformed packets byte for byte through protocol stacks we wrote from the RFCs.

Git-backed, no cloud

Switch the workspace to a folder and keep your tests as files in your own Git repo.

Suites for CI

On an Enterprise deployment, a suite runs from a Docker image as a pipeline step and exits with a code the next step can act on.

Downloads

No account · No cloud · Runs on your machine

v3.2.0 · macOS builds are signed and notarized. Every download has a SHA-256 checksum:

SHA256: mac-arm64 · mac-x64 · AppImage · win-x64