Append samples to your org's named, labelled series

POST /v1/metrics/write

Takes {series:[{name, labels, samples:[{t, v}]}]}, appends every sample, creating each series on first write, and answers {written} — again counting SAMPLES, so three series of ten samples is 30.

A series is identified by its name PLUS its whole label set, so adding one label makes a different series rather than annotating an existing one. Timestamps t are NANOSECONDS since the Unix epoch; a sample sent without one is stored at 0 and is then excluded by any query that sets a lower bound, which is the usual reason a write that reported success does not read back. Retention is per series and bounded — past 65536 samples the oldest are evicted.

The tenant is the gateway-minted X-Org-Id header, falling back to the deployment brand and then default. A body that does not decode is 400; nothing else is validated or rejected.

Request

The document declares no body for POST /v1/metrics/write. The handler is typed in cloud but its shape is not yet emitted, so the fields are not listed here — ask the MCP door's describe for post_metrics_write, which answers from the running route.

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 metrics write

import { Configuration, MetricsApi } from 'hanzoai';

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

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

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = MetricsApi(client).post_metrics_write()

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

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

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

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

let result = metrics_api::post_metrics_write(&cfg, Default::default()).await?;

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

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

var result = new MetricsApi(client).postMetricsWrite();

curl -X POST https://api.hanzo.ai/v1/metrics/write \
  -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_log_health"
         }
       }
     }'

Metrics API · All Hanzo APIs · Interactive reference