Gemini WebAPICAUTION
MCP server for Google Gemini — free image generation, editing & chat via browser cookies. No API keys needed.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
gemini-webapi-mcp
MCP-сервер для Google Gemini — генерация и редактирование изображений, чат и анализ файлов через браузерные cookies. Без API-ключей. Бесплатно.
Возможности
- Генерация изображений по текстовому описанию (Nano Banana 2 с поддержкой пропорций)
- 2x разрешение — автоматически скачивает upscaled-версию (2048x2048 → 2816x1536 и выше)
- Редактирование изображений — отправьте картинку + промпт и получите изменённую версию
- Анализ файлов — видео, изображения, PDF, документы
- Текстовый чат с Gemini (Flash, Pro, Flash-Thinking)
- Авто-удаление вотермарки — sparkle-метка Gemini убирается встроенным детерминированным Reverse Alpha Blending (без внешних бинарников, ML-моделей и скачиваний)
- Авто-аутентификация через cookies из Chrome
Быстрый старт
1. Войдите в Gemini
Откройте Chrome, перейдите на [gemini.google.com](https:/
b73e9a5dccf8OBSERVED · 2026-10-08Connect
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 gemini-webapi-mcp -- uvx gemini-webapi-mcp
{
"mcpServers": {
"gemini-webapi-mcp": {
"command": "uvx",
"args": [
"gemini-webapi-mcp"
]
}
}
}Exposed tools (6)
1 read · 4 write · 1 destructive. Blast radius: 1 tool can delete or overwrite — an agent that can be talked into calling a tool can be talked into calling this one.
| Tool | Risk | Description |
|---|---|---|
gemini_analyze_url | read | Analyze a URL — YouTube videos, webpages, articles, etc. |
gemini_chat | write | Send a text prompt to Google Gemini and get a response. |
gemini_generate_image | write | Generate or edit images with Gemini. |
gemini_reset | destructive | Re-initialise the Gemini client (refresh cookies, clear state). |
gemini_start_chat | write | Start a new multi-turn chat session with Gemini. |
gemini_upload_file | write | Upload a file (image, PDF, document, video) to Gemini and ask a question about it. |
Trust audit
CAUTIONgrade B · trust 89/100 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 | WARN |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- declared (1 observation(s))
- Network
- declared (2 observation(s))
- Shell
- none-observed
- Dependencies
- pinned
- Secrets in source
- none-found
Findings (7)
wm_alpha_edit.npy
wm_alpha_txt.npy
wm_premult_edit.npy
wm_premult_txt.npy
"gemini-webapi @ git+https://github.com/xob0t/Gemini-API.git",
gemini_reset
tests/fixtures/busy_corner_1280.png
Gates applied: no_behavioural_pass.
b73e9a5dccf8full audit observations/trust-audit/mcp-server/andyshaman__gemini-webapi.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 |
|---|---|---|---|---|---|
| 2026-10-08 | b73e9a5dccf8 | CAUTION | B | 89 | first audit |
Questions
What is the Gemini WebAPI MCP server?
MCP server for Google Gemini — free image generation, editing & chat via browser cookies. No API keys needed.
What tools does Gemini WebAPI expose?
6 in total: 1 read-only, 4 that write, and 1 that can delete or overwrite (gemini_reset). Every one is listed on this page with its risk.
Is Gemini WebAPI safe to connect to an agent?
With care. The audit graded it B (89/100) and found 7 things worth knowing before you trust this server, listed below with the exact line each was found on. Separately from the audit: 1 of its tools can destroy data, so scope the token you give it to what you actually need.
What credentials does Gemini WebAPI need?
No credential environment variables were found in its source, so it appears to need none.
How current is this page?
The grade is for one exact copy of the source (b73e9a5dccf8), read on 2026-10-08. The repository is watched and re-audited when it changes.