Principal

Serves an org as an economic principal: who it is, what it may pay, and which agents answer to it.

Also for this capability: API · MCP · SDKs

Serves an org as an economic principal: who it is, what it may pay, and which agents answer to it.

Base URL	`https://api.hanzo.ai`
Operations	7
Auth	`Authorization: Bearer $HANZO_API_KEY`

Specification

Specification pending — no HIP in hanzoai/hips declares capability: principal yet. What this capability serves is below, from the API document; what it is — the store it owns, how it meters, what it publishes — is written as a HIP under HIP-0139.

Four surfaces

Surface	Reaches this capability as	Coverage
REST	`principal` at its own prefix	7 operations
CLI	—	no command reaches it yet — use HTTP or an SDK
SDK	`PrincipalApi` in every published client	7 methods
MCP	tool `principal` on `https://api.hanzo.ai/v1/mcp`	7 operations, 2 under the document's own id — ask `describe` for the rest

Quickstart

export HANZO_API_KEY=sk-...   # console.hanzo.ai → API keys

Then the first call — a read that needs nothing but the key. GET /v1/principal, operation get_principal:

CLI

SDK

HTTP

MCP

hanzo has no subcommand for this operation — the CLI serves only what cloud's live route table confirms. Use HTTP or an SDK.

.ts

.py

.go

.rs

.java

import { Configuration, PrincipalApi } from 'hanzoai';

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

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

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = PrincipalApi(client).get_principal()

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

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

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

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

let result = principal_api::get_principal(&cfg, Default::default()).await?;

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

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

var result = new PrincipalApi(client).getPrincipal();

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

MCP reaches principal through the principal tool, which names its 7 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_principals"
         }
       }
     }'

Answers 200 with object — ok.

Endpoints

Endpoint	What it does
`GET /v1/principal/agents/{ref}`	Attests which principal one of the caller's agents answers to: the org, the chain of agents that spawned it, and the same signed with the platform's key as a JWS (EdDSA) a verifier checks offline against GET /v1/principal/keys.
`GET /v1/principal/clearance/{id}`	Reads one of the caller org's clearances, as it was decided.
`GET /v1/principal/clearance`	Lists the caller org's clearances, newest first, 200 at most; a payee narrows them.
`POST /v1/principal/clearance`	Decides whether the caller's org may pay another org, BEFORE the payment: what must happen first, what must be withheld and why, what must be reported, by whom and when, and how the payment may settle net of withholding.
`GET /v1/principal/keys`	Publishes the keys attestations are signed with, as a JSON Web Key Set (RFC 7517; Ed25519 keys as RFC 8037 writes them).
`GET /v1/principal/statements/{id}`	Reads whether one statement the platform signed about an agent still stands: live, expired, or revoked and when.
`GET /v1/principal`	Returns the caller's org as an economic principal, composed from the apps that own each fact: its legal entity and founders' identity verification (company), the W-9 or W-8 it certified (tax), its wallets (wallet), the agents that answer to it — spawned ones with the agent that spawned them — (agents), its screening against the OFAC, UN, EU and UK sanctions lists and the embargoed jurisdictions, run now, and what it still lacks to pay and be paid.

All Hanzo APIs · Interactive reference

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