AES Decrypt API

Decrypt AES-256-GCM ciphertext via REST API. Verifies the authentication tag before decryption — if the ciphertext has been tampered with, the API returns an error rather than silently returning corrupted data.

How it works

POST the key, IV, ciphertext, and authentication tag (all as hex). The API verifies the GCM auth tag first (preventing padding oracle attacks), then decrypts and returns the original plaintext.

Use cases

• Decrypt database fields that were encrypted with crypto-encrypt-aes
• Decrypt configuration secrets retrieved from secure storage
• Build decryption services in serverless functions without crypto library dependencies

API Reference

POST https://slopshop.gg/v1/crypto-decrypt-aes
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json

Input parameters

Example response

{
  "data": {
    "result": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
    "algorithm": "decrypt-aes"
  },
  "meta": {
    "credits_used": 1,
    "engine": "real",
    "ms": 4
  }
}

Examples

Three real-world scenarios showing how developers use AES Decrypt in production.

curl -X POST https://slopshop.gg/v1/crypto-decrypt-aes \
  -H "Authorization: Bearer $SLOPSHOP_KEY" \
  -H "Content-Type: application/json" \
  -d '{"key": "0000000000000000000000000000000000000000000000000000000000000001", "iv": "aabbccddeeff0011", "ciphertext": "...", "tag": "..."}'

curl -X POST https://slopshop.gg/v1/crypto-decrypt-aes \
  -H "Authorization: Bearer $SLOPSHOP_KEY" \
  -H "Content-Type: application/json" \
  -d '{"key": "deadbeef...", "iv": "112233445566", "ciphertext": "...", "tag": "..."}'

curl -X POST https://slopshop.gg/v1/crypto-decrypt-aes \
  -H "Authorization: Bearer $SLOPSHOP_KEY" \
  -H "Content-Type: application/json" \
  -d '{"key": "cafebabe...", "iv": "ffeeddccbbaa", "ciphertext": "...", "tag": "..."}'

Code examples

curl

curl -X POST https://slopshop.gg/v1/crypto-decrypt-aes \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"input": "your data here"}'

Python

import requests

response = requests.post(
    "https://slopshop.gg/v1/crypto-decrypt-aes",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={"input": "your data here"}
)
result = response.json()
print(result["data"])

Node.js

const response = await fetch("https://slopshop.gg/v1/crypto-decrypt-aes", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({ input: "your data here" })
});
const { data } = await response.json();
console.log(data);

CLI

# Install the Slopshop CLI
npm install -g slopshop

# Set your API key
export SLOPSHOP_KEY=your_api_key

# Call crypto-decrypt-aes
slop crypto-decrypt-aes '{"input": "your data here"}'

Pricing

Credits are purchased in bundles starting at $1 for 1,000 credits. All compute APIs like this one use 1 credit per call — that's $0.001. See all pricing tiers.

Related APIs in Crypto & Security

• SHA256 Hash API — Compute SHA256 hash of input data.
• SHA512 Hash API — Compute SHA512 hash of input data.
• MD5 Hash API — Compute MD5 hash of input data.
• HMAC-SHA256 API — Compute HMAC-SHA256 with secret key.
• UUID v4 API — Generate cryptographically random UUID v4.

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