Create forward backward

Accumulates the gradients of a batch on the client.

POST /v1/train/clients/{id}/forward_backward

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Address	`https://api.hanzo.ai/v1/train/clients/{id}/forward_backward`
Method	`POST`
Operation	`post_train_clients_by_id_forward_backward`
Auth	`Authorization: Bearer $HANZO_API_KEY`

Accumulates the gradients of a batch on the client.

Request

3 fields, body application/json (required).

Field	In	Type	Required	Description
`id`	path	string	yes	ID names the client.
`data`	body	any[]	—	Data are the examples: {prompt, completion} text, or tokenized datums.
`id`	body	string	—	ID names the client.

Response

Status	Body	Meaning
`200`		ok
`default`	problem-details	refused

200 body — 1 field.

Field	In	Type	Always	Description
`(body)`	body	any	yes

Failure carries the platform error shape — see Errors.

Examples

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, TrainApi } from 'hanzoai';

const api = new TrainApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.postTrainClientsByIdForwardBackward({ id: 'id', data: ["<data>"], id: "<id>" });

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

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = TrainApi(client).post_train_clients_by_id_forward_backward(id='id', data=["<data>"], id="<id>")

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

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

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

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

let result = train_api::post_train_clients_by_id_forward_backward(&cfg, Default::default()).await?;

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

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

var result = new TrainApi(client).postTrainClientsByIdForwardBackward();

curl -X POST https://api.hanzo.ai/v1/train/clients/<id>/forward_backward \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "data": [
         "<data>"
       ],
       "id": "<id>"
     }'

MCP declares no tool for train — tools/list on https://api.hanzo.ai/v1/mcp names the products it does reach. Use HTTP or an SDK.

Train API · All Hanzo APIs · Interactive reference

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