Hash Utilities

Hash Sha3 256

Generates SHA3-256 cryptographic hashes from text input using the secure Keccak algorithm. Access via MCP in Cursor or Claude Code for instant hash generation, or call GET /v1/hash/sha3-256 directly. Returns a 64-character hexadecimal string like "a7ffc6f8bf1ed76651c14756a061d662f580ff4de43b49fa82d80a4b80f8434a". SHA3-256 offers 256-bit security strength with resistance to length extension attacks.

API Endpoint

GET /v1/hash/sha3-256

Code Examples

curl "https://tinyfn.io/v1/hash/sha3-256" \
  -H "X-API-Key: YOUR_API_KEY"
const response = await fetch('https://tinyfn.io/v1/hash/sha3-256', {
  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/sha3-256',
    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 →

Related Tools

Hash Md5
Generate MD5 hash of text.
Hash Sha1
Generate SHA-1 hash of text.
Hash Sha256
Generate SHA-256 hash of text.
Hash Sha384
Generate SHA-384 hash of text.
Hash Sha512
Generate SHA-512 hash of text.
Hash Sha3 512
Generate SHA3-512 hash of text.
Hash Blake2B
Generate BLAKE2b hash of text.
Hash Blake2S
Generate BLAKE2s hash of text.

FAQ

What's the difference between SHA3-256 and SHA-256?

SHA3-256 uses the Keccak algorithm with different internal structure than SHA-256's Merkle-Damgård construction. Both produce 256-bit hashes but SHA3 is immune to length extension attacks.

How do I generate SHA3-256 hashes in my AI workflow?

Use the MCP tool in Cursor, Claude Code, or other supported editors to hash text directly in your coding session. The AI agent gets the exact hash without hallucination.

What format does SHA3-256 return?

Returns a 64-character lowercase hexadecimal string representing the 256-bit hash. Example: "a7ffc6f8bf1ed76651c14756a061d662f580ff4de43b49fa82d80a4b80f8434a" for "hello".

Can I hash empty strings or special characters?

Yes, SHA3-256 handles any UTF-8 text including empty strings, Unicode characters, and binary data encoded as text. Empty string produces a valid hash.

Is SHA3-256 suitable for password hashing?

No, use bcrypt, scrypt, or Argon2 for passwords. SHA3-256 is fast by design, making it vulnerable to brute force attacks on weak passwords.

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