Documentation / API reference / Seal Blob
Post Seal Blob
Reference
Last reviewed 2026-09-18
Encrypts a hex-encoded transaction or plaintext with the supplied public key and returns a hex-encoded sealed blob. Supply pk_hex and tx_hex in the JSON body. Sealing uses ML-KEM-768 and XChaCha20-Poly1305; this endpoint does not submit the transaction.
Code samples
bash
curl -X POST \
-H "Authorization: <YOUR_API_KEY>" \
-H "Content-Type: application/json" \
-d '{
"pk_hex": "string",
"tx_hex": "string"
}' \
"https://api.taostats.io/api/seal_blob/v1"js
const response = await fetch('https://api.taostats.io/api/seal_blob/v1', {
method: 'POST',
headers: {
Authorization: '<YOUR_API_KEY>',
'Content-Type': 'application/json',
},
body: JSON.stringify({
"pk_hex": "string",
"tx_hex": "string"
}),
});
const data = await response.json();python
import requests
response = requests.post(
"https://api.taostats.io/api/seal_blob/v1",
headers={"Authorization": "<YOUR_API_KEY>"},
json={
"pk_hex": "string",
"tx_hex": "string"
},
)
data = response.json()Parameters
No parameters.
Request body
| Field | Type | Required | Description |
|---|---|---|---|
pk_hex | string | Yes | Public key in hex format |
tx_hex | string | Yes | Transaction/plaintext in hex format |
json
{
"pk_hex": "string",
"tx_hex": "string"
}Responses
200 — Blob encrypted successfully
| Field | Type | Required | Description |
|---|---|---|---|
ciphertext_hex | string | Yes | Encrypted blob in hex format |
Other responses
| Status | Meaning |
|---|---|
400 | Bad request - invalid hex or key format |
500 | Internal server error |
Every request needs an Authorization header holding your API key — see Getting started with the Taostats API.