Create fingerprint

Turns raw device signals into the opaque value that binds a license to one machine.

POST /v1/licensing/fingerprint

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Address	`https://api.hanzo.ai/v1/licensing/fingerprint`
Method	`POST`
Operation	`post_licensing_fingerprint`
Auth	`Authorization: Bearer $HANZO_API_KEY`

Turns raw device signals into the opaque value that binds a license to one machine.

This is the anti-copy step: the value returned here is folded into the signed token, so a token minted with it runs only on the device it was bound to. The derivation is one-way and salted — the signals are never stored and never echoed back — so the response is safe to persist client-side and pass to issue. Signals too weak to identify a machine (a hostname alone) are refused rather than turned into a binding that would collide with other machines.

Request

9 fields, body application/json (required).

Field	In	Type	Required	Description
`signals`	body	licensing.DeviceSignals	—
`signals.arch`	body	string	—
`signals.cpuid`	body	string	—	CPUID is a CPU/board identifier string.
`signals.disk_serial`	body	string	—	DiskSerial of the boot/root volume.
`signals.hostname`	body	string	—	Hostname is a weak signal, used only as a tiebreaker.
`signals.install_id`	body	string	—	InstallID is a per-install random the agent persists locally on first run.
`signals.machine_id`	body	string	—	MachineID is a stable per-host id (e.g. /etc/machine-id, IOPlatformUUID, MachineGuid).
`signals.macs`	body	string[]	—	MAC addresses of stable interfaces (order-insensitive; we sort).
`signals.os`	body	string	—	OS / Arch coarse platform tags.

Response

Status	Body	Meaning
`200`	licensing.FingerprintResponse	ok
`default`	problem-details	refused

200 body — 2 fields.

Field	In	Type	Always	Description
`fingerprint`	body	string	—	Fingerprint is the OPAQUE binding value to pass to POST /v1/licensing/issue.
`version`	body	string	—	Version is the binding algorithm revision, so a stored fingerprint stays recognizable across a recipe rotation.

Failure carries the platform error shape — see Errors.

Examples

CLI

SDK

HTTP

MCP

hanzo licensing fingerprint

.ts

.py

.go

.rs

.java

import { Configuration, LicensingApi } from 'hanzoai';

const api = new LicensingApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.postLicensingFingerprint({ signals: {"arch":"<arch>","cpuid":"<cpuid>","disk_serial":"<disk_serial>","hostname":"<hostname>"} });

from hanzoai.cloud import ApiClient, Configuration
from hanzoai.cloud.api import LicensingApi

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = LicensingApi(client).post_licensing_fingerprint(signals={"arch":"<arch>","cpuid":"<cpuid>","disk_serial":"<disk_serial>","hostname":"<hostname>"})

cfg := hanzoai.NewConfiguration()
cfg.AddDefaultHeader("Authorization", "Bearer "+os.Getenv("HANZO_API_KEY"))
client := hanzoai.NewAPIClient(cfg)

resp, _, err := client.LicensingAPI.PostLicensingFingerprint(context.Background()).Execute()
if err != nil {
	return err
}

use hanzo_client::apis::{configuration::Configuration, licensing_api};

let mut cfg = Configuration::new();
cfg.bearer_access_token = std::env::var("HANZO_API_KEY").ok();

let result = licensing_api::post_licensing_fingerprint(&cfg, Default::default()).await?;

import ai.hanzo.cloud.ApiClient;
import ai.hanzo.cloud.api.LicensingApi;

ApiClient client = new ApiClient();
client.setBearerToken(System.getenv("HANZO_API_KEY"));

var result = new LicensingApi(client).postLicensingFingerprint();

curl -X POST https://api.hanzo.ai/v1/licensing/fingerprint \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "signals": {
         "arch": "<arch>",
         "cpuid": "<cpuid>",
         "disk_serial": "<disk_serial>",
         "hostname": "<hostname>"
       }
     }'

MCP reaches licensing through the licensing tool, which names its 9 operations with its own verbs — this one among them, under a name only MCP declares. describe explains any of them:

curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "describe",
         "arguments": {
           "op": "get_licensing_download"
         }
       }
     }'

Licensing API · All Hanzo APIs · Interactive reference

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