Node.js Crypto Connector for AI agents.
1 live capability
Generate cryptographically secure API keys and session tokens for backend security.
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Why people use Node.js Crypto
Crypto Random String Security for Production Secrets
This Connector changes the workflow entirely. Instead of trusting the AI's imagination, your agent calls the native system libraries to pull real entropy from the OS. You get production-grade secrets that are actually secure, complete with an entropy report to prove it.
What Vinkius changes
You get production-ready secrets instead of AI-hallucinated patterns.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 5,900+ Connectors
- Real-world use case 01
Secure API Key Generation
A developer needs a 32-character hex key for a new microservice and wants to ensure it's not a common pattern.
- Real-world use case 02
Human-Readable Invite Codes
A product manager wants a list of 50 unique invite codes that are easy for humans to read and type.
- Real-world use case 03
Entropy Verification
A security auditor needs to verify the entropy of a generated session token to meet a specific bit-count requirement.
Complete set · 1capability
The complete Node.js Crypto capability set.
These are the exact actions your AI can choose when you ask it to work with Node.js Crypto.
01
1 capability in this set.
Part of 1 available through Node.js Crypto.
- 01 Capability
Generate random string
Creates a secure string in your choice of hex, base64, or numeric formats. It lets you specify length and charset to meet specific security requirements.
Set up in minutes
One URL. Then ask Node.js Crypto to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use Node.js Crypto from the conversation.
Choose your client
Live previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_U9dRqrQ5wMdIaIrs3KcRpppiCbojR7NUlizz9JiD/mcp - Step 01
Open Connectors
In Claude Web or Claude Desktop, open Settings and choose Connectors.
- Step 02
Add the URL
Choose Add custom connector, name it Node.js Crypto, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable Node.js Crypto for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_U9dRqrQ5wMdIaIrs3KcRpppiCbojR7NUlizz9JiD/mcp - Step 01
Open MCP settings
On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
- Step 02
Add the URL
Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the Node.js Crypto URL.
- Step 03
Save and start
Save the connection and enable Node.js Crypto in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"crypto-random-string": {
"url": "https://edge.vinkius.com/vk_preview_U9dRqrQ5wMdIaIrs3KcRpppiCbojR7NUlizz9JiD/mcp"
}
}
}- Step 01
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
- Step 02
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
- Step 03
Save the file
Cursor will automatically detect the new Connector
- Step 04
Start using Node.js Crypto
Open Agent mode in chat and ask: "Using Node.js Crypto, help me...". 1 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"crypto-random-string": {
"url": "https://edge.vinkius.com/vk_preview_U9dRqrQ5wMdIaIrs3KcRpppiCbojR7NUlizz9JiD/mcp"
}
}
}- Step 01
Create MCP config
Create a .vscode/mcp.json file in your project root
- Step 02
Add the server config
Paste the JSON configuration above
- Step 03
Enable Agent mode
Open GitHub Copilot Chat and switch to Agent mode using the dropdown
- Step 04
Start using Node.js Crypto
Ask Copilot: "Using Node.js Crypto, help me...". 1 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"crypto-random-string": {
"url": "https://edge.vinkius.com/vk_preview_U9dRqrQ5wMdIaIrs3KcRpppiCbojR7NUlizz9JiD/mcp"
}
}
}- Step 01
Open MCP Settings
Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
- Step 02
Add the server
Paste the JSON configuration above into mcp_config.json
- Step 03
Save and reload
Windsurf will detect the new server automatically
- Step 04
Start using Node.js Crypto
Open Cascade and ask: "Using Node.js Crypto, help me...". 1 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"crypto-random-string": {
"url": "https://edge.vinkius.com/vk_preview_U9dRqrQ5wMdIaIrs3KcRpppiCbojR7NUlizz9JiD/mcp"
}
}
}- Step 01
Open Cline MCP Settings
Click the Connectors icon in the Cline sidebar panel
- Step 02
Add remote server
Click "Add Connector" and paste the configuration above
- Step 03
Enable the server
Toggle the server switch to ON
- Step 04
Start using Node.js Crypto
Ask Cline: "Using Node.js Crypto, help me...". 1 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add crypto-random-string --transport http "https://edge.vinkius.com/vk_preview_U9dRqrQ5wMdIaIrs3KcRpppiCbojR7NUlizz9JiD/mcp"- Step 01
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
- Step 02
Add the Connector
Run the command above in your terminal
- Step 03
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
- Step 04
Start using Node.js Crypto
Ask Claude: "Using Node.js Crypto, show me...". 1 tools are ready
Where the request belongs
Work Node.js Crypto can move forward.
The security engineer who's tired of clicking through external generators at 2am, the backend developer building auth flows, and the DevOps lead who needs to ensure compliance for all system secrets.
Security Engineer
Auditing entropy levels and ensuring every generated token meets strict compliance standards.
Backend Developer
Generating session tokens and API keys directly in the IDE without leaving the workflow.
DevOps Specialist
Creating unique, distinguishable invite codes for user onboarding at scale.
Full-stack Engineer
Building secure authentication systems that require high-entropy, URL-safe strings.
Build the capability set
Add more capabilities.
Each Connector adds new actions and data without changing how you work.
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Bring your own AI
Change the model, client or framework. Keep Node.js Crypto connected.
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Before you connect
Questions about Node.js Crypto.
The practical details behind the request, access and result.
Is the Crypto Random String MCP actually secure?
Yes, it uses the native system libraries to pull from the OS entropy pool. This is the same standard used by OpenSSL, making it suitable for production secrets.
Can I use this for API keys?
That is exactly what it's for. You can have your agent generate hex, base64, or URL-safe strings specifically for your keys and tokens.
What does distinguishable mean for invite codes?
It means the Connector avoids characters that look alike, such as O and 0 or I and l. This makes it much easier for your users to read and type their codes.
How much entropy do I get?
The Connector returns the exact entropy bits for every string it generates. This allows you to verify that your tokens meet your specific security requirements.
Does this work for URL-safe tokens?
Yes, it includes a specific charset for URL-safe strings, which are perfect for session tokens or any other data that needs to be passed in a web address.
Why shouldn't I just let my AI agent make up a string?
AI models are designed to predict patterns, not to generate true randomness. Using an AI-generated string for a secret can make your system vulnerable to predictable attacks.
Is this truly cryptographically secure?
Yes. It uses Node.js crypto.randomBytes() which draws from the OS CSPRNG (Cryptographically Secure Pseudo-Random Number Generator). This is the same source used by OpenSSL and TLS.
What is the 'distinguishable' charset?
It uses only characters that cannot be confused visually: CDEHKMPRTUWXY012458. This avoids pairs like O/0, I/l/1 that cause errors when users type codes manually.
What is the maximum string length?
1024 characters. This is more than enough for any API key, session token, or invite code. The entropy bits are reported so you can verify the security level.
One connection away
Give your agent a direct line to Node.js Crypto.
Connect Node.js Crypto once. Keep it beside 5,900+ managed Connectors when the next task needs more.
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