Create classes

Defines a new class of shares.

POST /v1/captable/classes

Captable → · All API references → · Get started →

Address	`https://api.hanzo.ai/v1/captable/classes`
Method	`POST`
Operation	`post_captable_classes`
Auth	`Authorization: Bearer $HANZO_API_KEY`

Defines a new class of shares.

Every field but convertsToShareClassId is required — a class is the instrument every later issuance prices against, so a partially-specified one would silently mis-value every share issued into it. seniority orders liquidation preference with LOWER first.

Request

13 fields, body application/json (required).

Field	In	Type	Required	Description
`boardApprovalDate`	body	any	—	BoardApprovalDate is when the board approved the class, YYYY-MM-DD.
`classType`	body	any	—	ClassType is COMMON or PREFERRED.
`conversionRights`	body	any	—	ConversionRights is CONVERTS_TO_FUTURE_ROUND or CONVERTS_TO_SHARE_CLASS_ID.
`convertsToShareClassId`	body	any	—	ConvertsToShareClassID names the class this one converts into.
`initialSharesAuthorized`	body	any	—	InitialSharesAuthorized is how many shares this class may issue.
`liquidationPreferenceMultiple`	body	any	—	LiquidationPreferenceMultiple is the multiple of invested capital paid out before junior classes — 1 for a 1x preference.
`name`	body	any	—	Name is the share class's name, e.g. "Series A Preferred".
`parValue`	body	any	—	ParValue is the nominal per-share value on the certificate, in the company's currency.
`participationCapMultiple`	body	any	—	ParticipationCapMultiple caps participation after the preference is paid, as a multiple of invested capital.
`pricePerShare`	body	any	—	PricePerShare is the issue price for this class, in the company's currency.
`seniority`	body	any	—	Seniority orders liquidation preference: LOWER is more senior, so 1 is paid before 2.
`stockholderApprovalDate`	body	any	—	StockholderApprovalDate is when the stockholders approved it, YYYY-MM-DD.
`votesPerShare`	body	any	—	VotesPerShare is how many votes one share of this class carries.

Response

Status	Body	Meaning
`201`	captable.captableCreated	created
`default`	problem-details	refused

201 body — 3 fields.

Field	In	Type	Always	Description
`id`	body	string	—	ID is the created row's id.
`message`	body	string	—	Message is the human sentence the cap table wrote, e.g. "Share issued".
`success`	body	boolean	—	Success is true when the row was written.

Failure carries the platform error shape — see Errors.

Examples

CLI

SDK

HTTP

MCP

hanzo captable classes create

.ts

.py

.go

.rs

.java

import { Configuration, CaptableApi } from 'hanzoai';

const api = new CaptableApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.postCaptableClasses({ boardApprovalDate: "<boardApprovalDate>", classType: "<classType>" });

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

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = CaptableApi(client).post_captable_classes(board_approval_date="<boardApprovalDate>", class_type="<classType>")

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

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

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

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

let result = captable_api::post_captable_classes(&cfg, Default::default()).await?;

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

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

var result = new CaptableApi(client).postCaptableClasses();

curl -X POST https://api.hanzo.ai/v1/captable/classes \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "boardApprovalDate": "<boardApprovalDate>",
       "classType": "<classType>"
     }'

MCP reaches captable through the captable tool, which names its 30 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_captable_classes"
         }
       }
     }'

Captable API · All Hanzo APIs · Interactive reference

Was this page useful?

PreviousUpdate stakeholders NextCreate convertibles