Take an Alertmanager notification and page a human

POST /v1/o11y/alerts/{receiver}

Records one Alertmanager webhook delivery and pages the on-call. Each alert prints an ALERT-RECEIVED line and joins the replay ring, then the batch is carried out of the process by the egress chain: the org's KMS-custodied Slack bot token first (the ONE product Slack egress, not a second webhook credential), falling back to a plain POST to CLOUD_ALERTS_WEBHOOK_URL — which needs no Slack connection and so works in exactly the state that silences the first. Resolved notifications page too: "it recovered" is the half of an incident people are actually waiting for.

THE STATUS CODE REPORTS DELIVERY, NOT ARRIVAL. 200 ok means an egress accepted the batch. If none did — including when none is configured at all — it answers 503 naming the failure, so Alertmanager retries and counts it in alertmanager_notifications_failed_total. An alert nobody could be told about must never answer the same way as one that was delivered.

A body that will not parse is still recorded (with empty fields) rather than rejected: the delivery happened, which is the fact being recorded, and a 400 would make Alertmanager retry a malformed payload forever.

The receiver segment is Alertmanager's own receiver name, a parameter rather than a hand-listed route because the receiver set is config, not code.

Request

1 field.

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

hanzo o11y alerts add <receiver>

import { Configuration, O11yApi } from 'hanzoai';

const api = new O11yApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.postO11yAlertsByReceiver({ receiver: 'receiver' });

from hanzoai.cloud import ApiClient, Configuration
from hanzoai.cloud.api import O11yApi

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = O11yApi(client).post_o11y_alerts_by_receiver(receiver='receiver')

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

resp, _, err := client.O11yAPI.PostO11yAlertsByReceiver(context.Background()).Execute()
if err != nil {
	return err
}

use hanzo_cloud::apis::{configuration::Configuration, o11y_api};

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

let result = o11y_api::post_o11y_alerts_by_receiver(&cfg, Default::default()).await?;

import ai.hanzo.cloud.ApiClient;
import ai.hanzo.cloud.api.O11yApi;

ApiClient client = new ApiClient();
client.setRequestInterceptor(b -> b.header("Authorization", "Bearer " + System.getenv("HANZO_API_KEY")));

var result = new O11yApi(client).postO11yAlertsByReceiver();

curl -X POST https://api.hanzo.ai/v1/o11y/alerts/<receiver> \
  -H "Authorization: Bearer $HANZO_API_KEY"

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_o11y_alert_last"
         }
       }
     }'

O11y API · All Hanzo APIs · Interactive reference