Security
Generate cryptographically secure random key material driven by entropy budget — request N bits of entropy, get hex/base64/base64url output. Also supports custom-alphabet strings via crypto.randomInt (rejection-sampled, no modulo bias). Use this instead of Math.random()-based tools for any secret/key/token.
Call this tool from your code in three languages.
curl -X POST 'https://api.elysiatools.com/en/api/tools/secure-random-generator' \
-H 'Content-Type: application/json' \
-d '{"entropyBits":256,"encoding":"hex","customAlphabet":"","customLength":32,"count":1}'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST https://api.elysiatools.com/en/api/tools/secure-random-generator| Name | Type | Required | Description |
|---|---|---|---|
| entropyBits | number | No | — |
| encoding | select | No | — |
| customAlphabet | text | No | — |
| customLength | number | No | — |
| count | number | No | — |
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-secure-random-generator": {
"name": "secure-random-generator",
"description": "Generate cryptographically secure random key material driven by entropy budget — request N bits of entropy, get hex/base64/base64url output. Also supports custom-alphabet strings via crypto.randomInt (rejection-sampled, no modulo bias). Use this instead of Math.random()-based tools for any secret/key/token.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=secure-random-generator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "secure-random-generator",
"arguments": {
"entropyBits": 256,
"encoding": "hex",
"customAlphabet": "",
"customLength": 32,
"count": 1
}
}
}HTML result
{
"result": "<div>Processed HTML content</div>",
"error": "Error message (optional)",
"message": "Notification message (optional)",
"metadata": {
"key": "value"
}
}Questions or issues? Contact [email protected]