Send notify

Delivers one transactional message by email or SMS through the caller org's own provider credential.

POST /v1/notify/send

Notify → · All API references → · Get started →

Address	`https://api.hanzo.ai/v1/notify/send`
Method	`POST`
Operation	`post_notify_send`
Auth	`Authorization: Bearer $HANZO_API_KEY`

Delivers one transactional message by email or SMS through the caller org's own provider credential.

The channel comes from the body — sms or email — and the provider credential is read from KMS at orgs/<org>/notify/<service>/<key>, never from the environment. The org is the validated principal's, never a client-supplied value, so a caller can only ever send as their own tenant; an unauthenticated caller gets 401. Naming no provider picks the one whose credentials are actually configured (Twilio, then Plivo for SMS; Twilio Email, then SMTP for email) and fails closed when none is. Delivery is synchronous and per recipient: one recipient answers the bare {message_id,status} outcome, several answer the {items:[…]} envelope. A terminal provider failure is a 200 whose status is failed with the reason in error, never a transport error. sync=true is REQUIRED — an async dispatch answers 503, because the queue plane that would run it is owned elsewhere. The message body wins verbatim when present; otherwise template_id (or the event name) selects a built-in template rendered against template_vars.

Request

9 fields, body application/json (required).

Field	In	Type	Required	Description
`body`	body	string	—	Body is the message text, sent verbatim when present — the no-template path.
`channel`	body	string	—	Channel selects the delivery channel, sms or email.
`event`	body	string	—	Event is the event name, which doubles as the template id when TemplateID is empty — the IAM OTP path sends event=iam.otp_sent and nothing else.
`provider`	body	string	—	Provider pins a provider service name (twilio, plivo, twilio_email, mail).
`subject`	body	string	—	Subject is the message subject, carried on the email channel only.
`sync`	body	string	—	Sync must be exactly "true": delivery here is synchronous, and anything else answers 503 because the queue plane that would run an async dispatch is owned elsewhere.
`template_id`	body	string	—	TemplateID selects a built-in template when Body is empty.
`template_vars`	body	any	—	TemplateVars carries the values the selected template renders against, as a raw JSON object.
`to`	body	string[]	—	To is the destination address per recipient — a phone number for sms, an email address for email.

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 notify send create

.ts

.py

.go

.rs

.java

import { Configuration, NotifyApi } from 'hanzoai';

const api = new NotifyApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.postNotifySend({ body: "<body>", channel: "<channel>" });

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

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = NotifyApi(client).post_notify_send(body="<body>", channel="<channel>")

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

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

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

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

let result = notify_api::post_notify_send(&cfg, Default::default()).await?;

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

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

var result = new NotifyApi(client).postNotifySend();

curl -X POST https://api.hanzo.ai/v1/notify/send \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "body": "<body>",
       "channel": "<channel>"
     }'

MCP reaches notify through the notify tool, which names its 4 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_notify_health"
         }
       }
     }'

Notify API · All Hanzo APIs · Interactive reference

Was this page useful?

PreviousCreate sms NextReplace credentials