Getting Started with CodexHash

Start creating and verifying hash events in minutes. CodexHash provides a REST API for cryptographic hashing with chain integrity verification.

Quick Start Steps

Create an Account

Create Account

Get API Access

Access the REST API directly or use the official TypeScript SDK.

View SDK & API

Make Your First Request

Create your first hash event using the API.

See Example

Verify & Build

Verify hash chain integrity and integrate into your application.

API Reference

Your First Hash

Installation

# No installation required - use cURL or any HTTP client

Example Code

# Create a new hash event
curl -X POST https://codexhash.web3connected.com/api/hash/ \
  -H "Content-Type: application/json" \
  -d '{
    "data": "Hello, World!",
    "mode": "quick",
    "algo": "sha256"
  }'

# Response:
# {
#   "id": "a8d1ddee-79e9-4ca0-8156-ac0413d10583",
#   "created_at": "2026-03-13T12:00:00",
#   "payload_hash": "c9ababd6c6a2f2b...",
#   "prev_event_hash": "b5a82e40d77a...",
#   "event_hash": "9c22057440f21...",
#   "mode": "quick",
#   "algo": "sha256"
# }

# Verify hash chain integrity
curl -X POST https://codexhash.web3connected.com/api/hash/verify/{event_id}

# List hash events
curl https://codexhash.web3connected.com/api/hash/?limit=10

# Get a specific hash event
curl https://codexhash.web3connected.com/api/hash/{event_id}

Key Concepts

Hash Modes

Quick: Fast hashing for high throughput.
Standard: Balanced security (recommended).
Secure: Maximum security with additional entropy.

Hash Chain

Each hash event links to the previous one via prev_event_hash. This creates an immutable chain that can be verified for integrity.

Chain Verification

Use the /verify/{id} endpoint to verify any hash event and confirm the entire chain remains intact.

Next Steps

Full Documentation

Explore the complete API reference

SDK Downloads

Get SDKs for all platforms

API Keys

Create and manage your keys