List nonce

Starts a wallet sign-in: it returns a one-time challenge for the wallet to sign.

GET /v1/iam/web3/nonce

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Address	`https://api.hanzo.ai/v1/iam/web3/nonce`
Method	`GET`
Operation	`get_iam_web3_nonce`
Auth	`Authorization: Bearer $HANZO_API_KEY`

Starts a wallet sign-in: it returns a one-time challenge for the wallet to sign. The challenge is good once and is tied to the site that asked for it, so a signature collected elsewhere cannot be replayed here.

Request

GET /v1/iam/web3/nonce takes no parameters and no body — the credential is the whole request.

Response

The document declares no response body for this operation. It answers 200 on success and the platform error shape on failure — see Errors.

Examples

CLI

SDK

HTTP

MCP

hanzo iam web3 nonce

.ts

.py

.go

.rs

.java

import { Configuration, IamApi } from 'hanzoai';

const api = new IamApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.getIamWeb3Nonce();

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

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = IamApi(client).get_iam_web3_nonce()

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

resp, _, err := client.IamAPI.GetIamWeb3Nonce(context.Background()).Execute()
if err != nil {
	return err
}

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

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

let result = iam_api::get_iam_web3_nonce(&cfg, Default::default()).await?;

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

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

var result = new IamApi(client).getIamWeb3Nonce();

curl https://api.hanzo.ai/v1/iam/web3/nonce \
  -H "Authorization: Bearer $HANZO_API_KEY"

MCP reaches iam through the iam tool, which names its 44 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": "list_iam_applications"
         }
       }
     }'

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