Cryptography Utilities

Crc32 Checksum

Calculate CRC32 checksums for data integrity verification and error detection. Use via MCP in Cursor or Windsurf, or call GET /v1/crypto/crc32 directly. Returns an 8-character hexadecimal hash like "e3069283" for any input string. CRC32 generates consistent 32-bit values, making it ideal for quick file validation and duplicate detection in AI workflows.

API Endpoint

GET /v1/crypto/crc32

Code Examples

curl "https://tinyfn.io/v1/crypto/crc32" \
  -H "X-API-Key: YOUR_API_KEY"
const response = await fetch('https://tinyfn.io/v1/crypto/crc32', {
  headers: { 'X-API-Key': 'YOUR_API_KEY' }
});
const data = await response.json();
console.log(data);
import requests

response = requests.get('https://tinyfn.io/v1/crypto/crc32',
    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 cryptography tools:

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

Learn more about MCP setup →

FAQ

What is CRC32 and when should I use it?

CRC32 is a fast error-detection algorithm that produces 32-bit checksums. Use it for file integrity checks, duplicate detection, or quick data validation where cryptographic security isn't required.

How do I calculate CRC32 checksums in MCP-enabled editors?

Call the crc32 tool with your input string. It returns a deterministic 8-character hex value that's identical across all platforms and implementations.

What format does CRC32 output use?

Returns lowercase hexadecimal format, like 'e3069283'. The output is always exactly 8 characters representing the 32-bit checksum value.

Can CRC32 detect all data corruption?

No, CRC32 can miss certain error patterns and isn't collision-resistant. For security or cryptographic purposes, use SHA-256 or other cryptographic hash functions instead.

Is CRC32 the same across different programming languages?

Yes, CRC32 is standardized. The same input produces identical checksums whether calculated in Python, JavaScript, or through this API endpoint.

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