POST AI agent ready /v1/hash

Hash API - Free MD5, SHA-256 Generator

Pass any string and receive its cryptographic hash in the algorithm of your choice. Supports MD5, SHA-1, SHA-256, SHA-384, and SHA-512. Useful for checksums, data integrity verification, and content fingerprinting.

Endpoint

Code examples

curl -X POST https://api.botoi.com/v1/hash \
  -H "Content-Type: application/json" \
  -d '{"text":"hello world","algorithm":"sha256"}'

When to use this API

File integrity checks

Hash uploaded files server-side and compare against known checksums to verify downloads or detect tampering.

Content deduplication

Generate SHA-256 fingerprints for user-submitted content to detect duplicates before storing them in your database.

Webhook signature verification

Compute an HMAC or hash of incoming webhook payloads and compare it against the provider signature header.

Frequently asked questions

Which hash algorithm should I choose?

SHA-256 is the most common choice for checksums and data integrity. MD5 and SHA-1 are faster but considered cryptographically weak. Use SHA-512 when you need a longer digest.

Is the hash output hex-encoded?

Yes. The API returns the hash as a lowercase hexadecimal string.

Can I hash binary data?

The API accepts UTF-8 strings. For binary data, Base64-encode it first using the /v1/base64/encode endpoint, then hash the encoded string.

Is MD5 safe for passwords?

No. MD5 is not collision-resistant and should never be used for password storage. Use bcrypt or Argon2 for passwords. MD5 is fine for non-security checksums.

What is the maximum input size?

The request body limit is 1 MB. For larger payloads, hash them client-side or split them into chunks.

Get your API key

Free tier includes 5 requests per minute with no credit card required. Upgrade for higher limits.