User repository on GitHub
A reCAPTCHA solver using Jev
- Forks
- 1
- Last pushed
- Updated Oct 2026
Repo stats from the GitHub API, cached Oct 2026.
Jev directory
CommunityJev Tools & CLIs
Jev solver
A Rust library and CLI that solves reCAPTCHA v2 image grids by asking Jev one Noul question per tile. Jev judges each tile in a single multipart request; Rust handles cropping, clicks, replacement detection, verification and stopping conditions, with a Chrome workflow that manages its own ChromeDriver.
- Stars
- 4
- Language
- Rust
- License
- MIT
- Reading time
- 3 min
- Published by
- Community
- Author
- DevExzh
- Last verified
- Oct 2026
- Languages
- Rust
- Capabilities
- Open sourceRequires API key
Highlights
- Pins jev-1.14.0 by default because jev-latest still maps to 1.13.0; override with --model or TYPESAFE_MODEL.
- Uses the TypeSafe image API with multipart PNGs and one Noul question per tile for 3x3 or 4x4 grids.
- Thresholds: select at probability 0.7 or above, skip at 0.3 or below, review between, with up to two refinement passes.
- The browser loop handles dynamic grids, replacements, stale inference, expired checkboxes and access blocks.
- No guaranteed success rate; audio, invisible widgets, v3 and nested iframes are unsupported, per the README.
Quickstart
bash
cargo build --release --locked
export TYPESAFE_API_KEY='your-typesafe-key'
cargo run --release -- browser --url 'https://www.google.com/recaptcha/api2/demo'Watch out
README reviewed 2026-10-17; TypeSafe's image API is called experimental in the README, judgments can be wrong, there is no guaranteed reCAPTCHA success rate, and thresholds are starting values to evaluate on your own images rather than validated accuracy guarantees.
Questions about this entry
Short answers drawn from the linked project or page.
It is a Rust library and CLI for reCAPTCHA v2 image grids with a Chrome browser workflow. Jev judges each tile while Rust controls image preparation, clicks, replacement detection, verification and stopping conditions.
The integration uses POST /v1/systemone with multipart PNG assets, unique UUID references and the required TypeSafe-Danger-Zone-Images header. The full grid appears in state, and one independent Noul question per tile asks whether it contains any visible part of the requested target; all questions go in one request.
Install Rust 1.88+ and Chrome, run cargo build --release --locked and export TYPESAFE_API_KEY, or copy secrets.example.yml to secrets.yml. The browser command downloads and manages the matching ChromeDriver on first use, and an existing WebDriver server is also supported.
English v2 checkbox challenges with 3x3 or 4x4 image grids, including dynamic grids where clicked tiles are replaced. Audio challenges, invisible widgets, v3 risk scoring and widgets nested inside other iframes are unsupported, and access blocks stop the run.
Default decisions are select at p >= 0.7, skip at p <= 0.3 and review in between. Before returning review the solver makes up to two refinement calls on only the unresolved tiles, using a larger crop plus a neighboring context crop; repeated judgments are not multiplied into artificial confidence.
It needs a TypeSafe API key for the image API, which the README calls experimental, and pins jev-1.14.0 by default. The README states no pricing and no guaranteed reCAPTCHA success rate, and notes that platform providers must implement the TypeSafe HTTP API including multipart image assets.
The GitHub user DevExzh publishes it under the MIT license; the repository was created 2026-10-16 and pushed the same day. Credential files and artifacts directories are git-ignored and the CLI never prints API keys or raw provider error bodies.
Reactions & coverage
Posts, threads, and videos about this entry from around the web.
X: Text-to-screenshot (Malay Vasa)
X: Google's MediaPipe Decision Maker, tested in the browser
X: Playwright CLI + Jev vs Playwright MCP
X: jev-ultrafast splits every browser decision into operation, target and value. JEV passed 18,000 stars in its…
More Jev resources like this
A Rust CLI that gates shell pipelines on a Jev-style yes/no judgment: it reads text on stdin, asks the classifier a question, and passes the text through only when P(yes) clears a threshold — the README calls it smarter cron.
Jev Tools & CLIs#community#github#rust
Community
gordonbrander/jevgateRust
gordonbrander/jevgateRustA Nushell plugin that brings TypeSafe Jev structured decisions into the shell: Nu builds the state and processes the typed answers, the plugin sends the request, and native commands like where and sort-by handle the rows.
Jev Tools & CLIs#community#github#nushell
Community
gleb-chipiga/nu_plugin_jevRust
gleb-chipiga/nu_plugin_jevRustA Rust command-line interface for OpenRouter's Jev decision model. Each command sends one state and one typed question to the Decisions API, validates the returned answer against that question, and writes JSON for scripts and agents.
Jev Tools & CLIs#community#github#rust
Community
tyrchen/jevRust
tyrchen/jevRustA Rust CLI for System One decision models: typed questions in, calibrated probabilities out, with the API key kept out of the caller. Providers include TypeSafe Jev, Cloudflare Clef, Clef on a local Ollama, and OpenAI chat models read through log-probabilities.
Jev Tools & CLIs#community#github#rust
Community
vilinski/jevRust
vilinski/jevRustA browser automation CLI for AI agents: drive Chrome with natural language in an interactive terminal or structured commands like jevb page act, signed in with a TypeSafe or OpenRouter key. Prebuilt packages target macOS Apple Silicon; Node.js 22+.
Jev Tools & CLIs#community#catalog-import#logicrw
Community
mrlyk/jev-browserRust
mrlyk/jev-browserRustRust workbench (Ratatui TUI and CLI) for cancer-of-unknown-primary research: it imports molecular, expression and clinical evidence, asks Jev for an origin distribution over 22 classes, then checks, gates, charts and exports the answer locally.
Jev Tools & CLIs#community#catalog-import#logicrw
From the Jev guides
Original write-ups on what this entry is for.
From the Jev AI model community
Posts from builders shipping with Jev right now.