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CloakBrowser-Agent

Stealth browser agent where Jev decides each step in about 0.3 s and CloakBrowser carries it out; MCP server, CLI and Python API.

MCP serverbeta
View on GitHub ↗

Overview

CloakBrowser Agent takes a goal in plain language: TypeSafe Jev decides every step, CloakBrowser (a stealth browser) carries it out like a human, and the result comes back as markdown. The README's example finds one-way flights from Zurich to London in 10 actions and 14 decisions, listing Jev's probability for each chosen target and the runners-up.

Each step is one request: Jev answers which operation and which element together using speculative fan-out (a target question per possible operation, using only the chosen one's answer). The README reports decisions averaging 0.28 to 0.43 s and about 1 s of decision time for a whole search task; a text model is called only when a field needs typing. When done, Jev also scores every section of the final page against the goal so only relevant sections are returned. It ships as an MCP server, CLI and Python API, and a free CloakBrowser licence key is recommended for the latest stealth build.

What the decision model decides

TypeQuestionAnswers
ChoiceWhich operation and which element should be used next?click · fill · ... with page elements
ScoreHow relevant is each section of the final page to the goal?—

How it works

  1. Receive a goal and starting URL
  2. Jev picks operation and element per step via fan-out
  3. CloakBrowser executes; a text model fills fields
  4. Jev ranks final page sections
  5. Return markdown with an action log and probabilities

Strengths

  • Transparent probabilities and runners-up per step
  • Fast decisions per the README
  • Result filtered to relevant sections

Caveats

  • Stealth browsing may violate some sites' terms
  • Needs a CloakBrowser licence key for latest build

Getting started

Install the package, set your TypeSafe key, run cloakbrowser login for a free licence key, then call browse(goal=..., url=...).

At a glance

Type
MCP server
Status
beta
Language
Python
Runtime
MCP server, CLI and Python API
Has code
yes

Use cases and integrations

How curated lists describe it

  • Jev-powered stealth browser agent. TypeSafe Jev decides each step in ~0.3 s, CloakBrowser carries it out like a human. MCP server, CLI and Python API.

    hellogumbo/awesome-jev

Frequently asked questions

What does Jev decide?

The operation and element for each step, then which page sections are relevant.

How fast?

About 0.28-0.43 s per decision in the authors' runs.

When is a text model used?

Only when a field needs typing.

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