Unicode Security MCP
Local checks for Unicode confusables, mixed scripts, invisible controls, and suspicious identifiers.
Description from the maker (original English)
MCP server for Snyk API & Web — DAST scanning, findings management, and vulnerability triage
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
MCP_SAW_API_KEYValues marked secret are keys to your account. Never share them or paste them into a chat.
You need
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"saw": {
"command": "uvx",
"args": [
"snyk-apiweb-mcp"
],
"env": {
"MCP_SAW_API_KEY": "your-value"
}
}
}
}Run this in your terminal
claude mcp add saw --env MCP_SAW_API_KEY=your-value -- uvx snyk-apiweb-mcpFill in the empty values before running it.
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"saw": {
"command": "uvx",
"args": [
"snyk-apiweb-mcp"
],
"env": {
"MCP_SAW_API_KEY": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"saw": {
"type": "stdio",
"command": "uvx",
"args": [
"snyk-apiweb-mcp"
],
"env": {
"MCP_SAW_API_KEY": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
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These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Runs on your computer; the tool list appears in your AI app after you install it.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026
The registry name was verified with the GitHub account snyk, which owns the repo
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
This one runs on your computer; there is no internet endpoint
Runs on your computer and uses local settings instead
Runs on your computer; we can only read tool lists from internet endpoints
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
You need to fill in: MCP_SAW_API_KEY
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
The GitHub repo last changed –, and the latest version (1.1.2) reached the registry 6 months ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.
In the same category: Unicode Security MCP, Osv MCP, Epss MCP
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Local checks for Unicode confusables, mixed scripts, invisible controls, and suspicious identifiers.
MCP server for OSV open source vulnerability data and package security checks.
Exploit Prediction Scoring System scores: how likely a CVE will be exploited in the next 30 days.
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Connect your AI coding assistant to Snyk API & Web so it can onboard scan targets, configure authentication, run DAST scans, and triage findings — all through natural language.
Built on FastMCP 2.0, works with Cursor, Claude Code, Devin, and any MCP-compatible client.
Naming note: Snyk API & Web was formerly known as Probely. The API endpoints (
api.probely.com), web console (plus.probely.app), and MCP tool names (probely_*) still use the legacy domain and prefix. Environment variables and config sections use the newSAW/sawnaming.
See [USER_GUIDE.md](USER_GUIDE.md) for usage, examples, and tool reference.
This repository is closed to public contributions. We appreciate community interest, but we do not accept pull requests, issues, or other contributions from external contributors at this time. If you have found a security issue, please see SECURITY.md.
playwright-cli; optional if using Playwright MCP instead)Go to https://plus.probely.app/api-keys and create an API key.
Important
Use a custom role, limited-scope API key for the Snyk API & Web MCP Server.
Create the key only with the permissions required for the intended actions.
Do not use a highly privileged or global API key, as this can affect your entire account and its resources.
Install directly from the Cursor Marketplace:
export MCP_SAW_API_KEY="your-api-key"
The plugin installs the MCP server, rules, and skills automatically.
Install directly from Devin's MCP Marketplace:
No manual configuration needed — Devin handles the setup automatically.
uvx --from git+https://github.com/snyk/saw-mcp.git saw-mcp
Or add to your MCP client configuration:
{
"mcpServers": { "SAW": { "command": "uvx", "args": ["--from", "git+https://github.com/snyk/saw-mcp.git", "saw-mcp"], "env": { "MCP_SAW_API_KEY": "your-api-key" } } } }
Alternative installation methods
Install from release tarball
tar -xzvf SnykAPIWeb-<version>.tgz
cd SnykAPIWeb python -m venv venv source venv/bin/activate # On Windows: venv\Scripts\activate pip install -r requirements.txt
Download from Releases and replace with the actual version number (e.g., 1.0.0).
Clone from source
git clone https://github.com/snyk/saw-mcp.git
cd saw-mcp python -m venv venv source venv/bin/activate # On Windows: venv\Scripts\activate pip install -r requirements.txt
The server reads your API key from (in order of precedence): environment variable MCP_SAW_API_KEY → .env file → config/config.yaml.
Option A: Environment variable (recommended for Marketplace / uvx installs)
export MCP_SAW_API_KEY="your-api-key"
Option B: `.env` file (recommended for source installs)
Run the setup script (prompts securely, no key in shell history):
./scripts/setup-env.sh
Or pipe from a secret manager: op read 'op://vault/item/key' | ./scripts/setup-env.sh
This writes a .env file in the project root (gitignored). The server loads it automatically at startup.
Option C: Secret reference (avoids storing the key in plaintext anywhere)
MCP_SAW_API_KEY and the config api_key field also accept a reference that is resolved at runtime, so the literal key never sits in a file:
export MCP_SAW_API_KEY="op://vault/saw-mcp/api-key" # resolved via the 1Password CLI (`op`)
export MCP_SAW_API_KEY="env:MY_SAW_KEY" # read from another environment variable
Avoid committing a plaintext key.
config/config.yamlis gitignored, and a plaintext key read from it logs a warning at startup.
Web target onboarding records login sequences in a real browser. Preferred for coding agents: playwright-cli via Shell:
npm install -g @playwright/cli@latest
playwright-cli install-browser chromium
Or run ./scripts/setup-playwright.sh from a cloned repo.
Alternative: install Playwright MCP as a second MCP server (better for MCP-only clients without Shell). See Web target prerequisites.
If you installed from the Cursor or Devin marketplace, configuration is automatic. For other clients, add to your MCP client configuration:
{
"mcpServers": { "SAW": { "command": "uvx", "args": ["--from", "git+https://github.com/snyk/saw-mcp.git", "saw-mcp"], "env": { "MCP_SAW_API_KEY": "your-api-key" } } } }
For host-specific setup see the Installation Guides.
Additional configuration options
"MCP_SAW_BASE_URL": "https://your-instance-url" to the env block."MCP_SAW_CONFIG_PATH": "/path/to/config.yaml" instead."MCP_SAW_LOG_LEVEL": "DEBUG" (options: DEBUG, INFO, WARNING, ERROR, CRITICAL; default: INFO).Ask your AI assistant to:
See [prompts.md](prompts.md) for a full catalog of example prompts — from simple one-liners to complex multi-target workflows.
The SAW MCP server talks to the Snyk API & Web platform — it does not include a browser. To onboard web targets with login sequences, the AI needs browser automation via one of:
| Path | Best for | Setup |
|---|---|---|
| `playwright-cli` (preferred) | Cursor, Devin, Claude Code, Cloud Agents with Shell | npm install -g @playwright/cli@latest && playwright-cli install-browser chromium |
| [Playwright MCP](https://playwright.dev/docs/getting-started-mcp) (fallback) | MCP-only clients without Shell (e.g. Claude Desktop) | Add Playwright MCP to your IDE's MCP config |
Workflow:
playwright-cli or Playwright MCP).Without browser automation, the AI falls back to form login (probely_configure_form_login) — simple single-page login only; no multi-step flows or 2FA.
See the Cursor installation guide for setup details.
Detailed per-host guides live in docs/installation-guides/:
| Host | Guide |
|---|---|
| Cursor | install-cursor.md |
| Claude Desktop | install-claude.md |
| Devin / Other IDEs | install-devin.md |
bash scripts/package.sh
Creates dist/SnykAPIWeb- .tgz (version from snyk_apiweb/__init__.py).
Running the server directly starts it and waits for an MCP client connection. This is mainly useful for development and debugging:
./venv/bin/python -m snyk_apiweb.server
For active development with automatic reload on file changes:
./scripts/dev.sh
This project is licensed under the Apache License 2.0.