Hash Utilities

Hmac Md5

Creates HMAC-MD5 hashes using a secret key for message authentication. Access via MCP in Cursor or Windsurf for secure hash generation, or call GET /v1/hash/hmac-md5 with message and key parameters. Returns a 32-character hexadecimal digest. HMAC-MD5 combines MD5 hashing with key-based authentication to prevent tampering.

API Endpoint

GET /v1/hash/hmac-md5

Code Examples

curl "https://tinyfn.io/v1/hash/hmac-md5" \
  -H "X-API-Key: YOUR_API_KEY"
const response = await fetch('https://tinyfn.io/v1/hash/hmac-md5', {
  headers: { 'X-API-Key': 'YOUR_API_KEY' }
});
const data = await response.json();
console.log(data);
import requests

response = requests.get('https://tinyfn.io/v1/hash/hmac-md5',
    headers={'X-API-Key': 'YOUR_API_KEY'})
data = response.json()
print(data)

Use via MCP

Add to your AI agent

Connect your AI agent (Claude, Cursor, Windsurf, etc.) to TinyFn's hash tools:

{
  "mcpServers": {
    "tinyfn-hash": {
      "url": "https://tinyfn.io/mcp/hash",
      "headers": {
        "X-API-Key": "YOUR_API_KEY"
      }
    }
  }
}

Learn more about MCP setup →

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FAQ

How do I generate an HMAC-MD5 hash with a secret key?

Pass your message and secret key to the endpoint. The tool combines them cryptographically to produce a 32-character hex hash that verifies both authenticity and integrity.

What's the difference between HMAC-MD5 and regular MD5?

HMAC-MD5 uses a secret key for authentication, making it suitable for verifying message integrity. Regular MD5 is just a hash function vulnerable to collision attacks.

Can I use HMAC-MD5 for API request signing in my MCP workflow?

Yes, it's commonly used for API signatures. Generate the HMAC-MD5 of your request payload with a shared secret, then include the hash in headers for verification.

Is HMAC-MD5 still secure for production applications?

While HMAC-MD5 is more secure than plain MD5, prefer HMAC-SHA256 for new applications. HMAC-MD5 may be required for legacy system compatibility.

What format does the HMAC-MD5 output use?

Returns a 32-character lowercase hexadecimal string, like 'a1b2c3d4e5f6789...'. This is the standard format for MD5-based hashes.

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