jev-ultrafast-mcpCAUTION
Delegate browser operations to an ultra-fast MCP server, executing full page tasks in seconds with one tool call.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
[](https://confident-christmasfactor2015.github.io)
Welcome to jev-ultrafast-mcp – a tool that lets you hand an entire browser job to a smart helper and get it done in one single request. Instead of telling the computer click-by-clickhire a pro driver who takes the wheelhandles every stepand comes back with the result.
🤔 What Problem Does This Solve?
Imagine you want a computer to fill out a form or test a webpage. Normallyyou would need to give it dozens of tiny instructions: "click herewait now type thatclick submit check the text..." That process is slow and needs a new instruction for every action.
jev-ultrafast-mcp changes that completely. You describe the whole goal at once (like "go to this siteorder the blue shirt and leave a review") and the software figures out all the little steps by itself. It runs the browser on a server (not your screen) using a special decision-making brain that watches the page and clickscorrectly. The entire task costs just one call (one command) not one call for each click. That is a huge speed boost for anyone doing browser work with AI tools.
🧠 Core Benefits at a Glance
- ✅ One-call flow – Describe the whole job onceand it executes end-to-end automatically
- ✅ Ref-based element tables – The system tracks every button and box on the page with stable references (no missed clicks from shifting layouts)
- ✅ Code-checked assertions – After each actionit verifies the page changed correctly (like a self-checking robot)
- ✅ Zero-model macro replay – Re-run successful flows instantly without using any AI compute (super cheap)
- ✅ Runs over Chrome DevTools Protocol – Same professional protocol that powers Chrome's own debugging (reliable and standardized)
🚀 Getting St
a88da7a4be49OBSERVED · 2026-10-11Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add jev-ultrafast-mcp -- uvx jev-ultrafast-mcp==0.1.5
Trust audit
CAUTIONgrade B · trust 84/100 Install with care. The audit found things worth knowing before you trust its output.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | WARN |
| L1 | Static analysis of the code | WARN |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- declared (4 observation(s))
- Network
- declared (6 observation(s))
- Shell
- none-observed
- Dependencies
- pinned
- Secrets in source
- found
Findings (13)
jev-ultrafast-mcp-3.7.zip
# JEVMCP_CDP_URL=http://127.0.0.1:9222
PASSWORD = "correct-horse-battery-staple"
_sent(session.cdp, "beacon.js")
[obs#1] http://127.0.0.1:54409/fixture.html "Ultrafast Fixture" scroll=0/860 reachable=16/16
[delta#2] http://127.0.0.1:54409/fixture.html "Ultrafast Fixture" reachable=16/16
| 否 | `JEVMCP_CDP_URL` | — | `mode=attach` 时填 `http://127.0.0.1:9222`;也可以直接给 `ws://` 地址跳过发现步骤 |
可以。`JEVMCP_MODE=attach` 加 `JEVMCP_CDP_URL=http://127.0.0.1:9222` 就是驱动你自己的 Chrome。
path.write_bytes(base64.b64decode(result["data"]))
path.write_bytes(base64.b64decode(data["data"]))
codecs.decode(escape, "unicode_escape")
CDP is the official language that Chrome browsers speak to developers. Instead of using third-party hacks or flaky screen-simulationthis tool speaks directly to Chromium's core. That gives you rock-so
Gates applied: no_behavioural_pass.
a88da7a4be49full audit observations/trust-audit/mcp-server/confident-christmasfactor2015__jev-ultrafast-mcp.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-11 | a88da7a4be49 | CAUTION | B | 84 | first audit |
Questions
What is the jev-ultrafast-mcp MCP server?
Delegate browser operations to an ultra-fast MCP server, executing full page tasks in seconds with one tool call.
Is jev-ultrafast-mcp safe to connect to an agent?
With care. The audit graded it B (84/100) and found 13 things worth knowing before you trust this server, listed below with the exact line each was found on.
What credentials does jev-ultrafast-mcp need?
No credential environment variables were found in its source, so it appears to need none.
How does jev-ultrafast-mcp run?
It speaks stdio, so it runs as a local process your client starts. It is published on PyPI as jev-ultrafast-mcp.
How current is this page?
The grade is for one exact copy of the source (a88da7a4be49), read on 2026-10-11. The repository is watched and re-audited when it changes.