v2.0 API Available

Anchora VaaS Documentation

Build tamper-proof applications with blockchain-backed data integrity. Add immutability and cryptographic proof to any app with simple APIs.

Quickstart

Get up and running with Anchora in 5 minutes. Create your first blockchain anchor.

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API Reference

Complete API documentation with examples, parameters, and response schemas.

View reference

Authentication

Learn how to authenticate your API requests using Bearer tokens or API keys.

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Quick Example

Anchor your first piece of data with just a few lines of code:

curl -X POST https://api.anchora.io/v1/anchor/encrypted \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "data": {
      "name": "Alice Smith",
      "email": "alice@example.com",
      "ssn": "123-45-6789"
    },
    "encryptionKey": "your-strong-encryption-key-min-32-chars",
    "mutableFields": ["name", "email"],
    "immutableFields": ["ssn"]
  }'

const response = await fetch('https://api.anchora.io/v1/anchor/encrypted', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    data: {
      name: 'Alice Smith',
      email: 'alice@example.com',
      ssn: '123-45-6789'
    },
    encryptionKey: 'your-strong-encryption-key-min-32-chars',
    mutableFields: ['name', 'email'],
    immutableFields: ['ssn']
  })
});

const result = await response.json();
console.log(result.recordId); // rec_abc123

import requests

response = requests.post(
    'https://api.anchora.io/v1/anchor/encrypted',
    headers={
        'Authorization': 'Bearer YOUR_API_KEY',
        'Content-Type': 'application/json'
    },
    json={
        'data': {
            'name': 'Alice Smith',
            'email': 'alice@example.com',
            'ssn': '123-45-6789'
        },
        'encryptionKey': 'your-strong-encryption-key-min-32-chars',
        'mutableFields': ['name', 'email'],
        'immutableFields': ['ssn']
    }
)

result = response.json()
print(result['recordId'])  # rec_abc123

API Endpoints

Anchora VaaS provides multiple endpoints for different use cases:

POST /v1/anchor/encrypted Anchor encrypted data with mutable/immutable fields Recommended POST /v1/anchor/plain Anchor unencrypted public data POST /v1/anchor/hash Hash-only proof of existence POST /v1/anchor/secure High-security for HIPAA/PCI-DSS GET /v1/records/:id Get record metadata POST /v1/records/:id/decrypt Decrypt record data POST /v1/records/search Privacy-preserving search

Key Features

AES-256 Encryption

Military-grade encryption with PBKDF2 key derivation.

HIPAA Ready

Built-in compliance for healthcare and financial data.

Privacy Search

Hash-based search without exposing data.

GDPR Delete

Soft, hard, and complete deletion options.