Create flamegraph

Returns a trace's flamegraph: spans bucketed by depth level, each level ordered as it is drawn, around the selected span.

POST /v1/o11y/traces/{traceId}/flamegraph

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Address	`https://api.hanzo.ai/v1/o11y/traces/{traceId}/flamegraph`
Method	`POST`
Operation	`GetFlamegraph`
Auth	`Authorization: Bearer $HANZO_API_KEY`

Returns a trace's flamegraph: spans bucketed by depth level, each level ordered as it is drawn, around the selected span.

Callers need the viewer role; the runtime's own gate enforces it.

Request

9 fields, body application/json (required).

Field	In	Type	Required
`traceId`	path	string	yes
`selectFields`	body	o11y.TelemetryFieldKey[]	—
`selectFields[].description`	body	string	—
`selectFields[].fieldContext`	body	any	—
`selectFields[].fieldDataType`	body	any	—
`selectFields[].name`	body	string	yes
`selectFields[].signal`	body	any	—
`selectFields[].unit`	body	string	—
`selectedSpanId`	body	string	—

Response

Status	Body	Meaning
`200`	o11y.O11yTraceFlamegraphOut	ok
`202`	Approval	held for approval
`default`	problem-details	refused

200 body — 23 fields.

Field	In	Type	Always	Description
`data`	body	o11y.GettableFlamegraphTrace	—
`data.endTimestampMillis`	body	integer (int64)	—
`data.hasMore`	body	boolean	—
`data.spans`	body	o11y.FlamegraphSpan[][]	—
`data.spans[][].attributes`	body	object	—
`data.spans[][].attributes.*`	body	any	—
`data.spans[][].durationNano`	body	integer (uint64)	—
`data.spans[][].event`	body	o11y.Event[]	—
`data.spans[][].event[].attributeMap`	body	object	—
`data.spans[][].event[].attributeMap.*`	body	any	—
`data.spans[][].event[].isError`	body	boolean	—
`data.spans[][].event[].name`	body	string	—
`data.spans[][].event[].timeUnixNano`	body	integer (uint64)	—
`data.spans[][].hasError`	body	boolean	—
`data.spans[][].level`	body	integer (int64)	—
`data.spans[][].name`	body	string	—
`data.spans[][].parentSpanId`	body	string	—
`data.spans[][].resource`	body	object	—
`data.spans[][].resource.*`	body	string	—
`data.spans[][].spanId`	body	string	—
`data.spans[][].timestamp`	body	integer (uint64)	—
`data.startTimestampMillis`	body	integer (int64)	—
`status`	body	string	—	Status is "success".

Failure carries the platform error shape — see Errors.

Examples

CLI

SDK

HTTP

MCP

hanzo o11y traces flamegraph <traceId>

.ts

.py

.go

.rs

.java

import { Configuration, O11yApi } from 'hanzoai';

const api = new O11yApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.getFlamegraph({ traceId: 'traceId', selectFields: [{"name":"<name>"}], selectedSpanId: "<selectedSpanId>" });

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).get_flamegraph(trace_id='traceId', select_fields=[{"name":"<name>"}], selected_span_id="<selectedSpanId>")

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

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

use hanzo_client::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::get_flamegraph(&cfg, Default::default()).await?;

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

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

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

curl -X POST https://api.hanzo.ai/v1/o11y/traces/<traceId>/flamegraph \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "selectFields": [
         {
           "name": "<name>"
         }
       ],
       "selectedSpanId": "<selectedSpanId>"
     }'

Tool o11y, op GetFlamegraph — POST the JSON-RPC envelope to https://api.hanzo.ai/v1/mcp.

curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "o11y",
         "arguments": {
           "op": "GetFlamegraph",
           "input": {
             "traceId": "<traceId>",
             "selectFields": [
               {
                 "name": "<name>"
               }
             ],
             "selectedSpanId": "<selectedSpanId>"
           }
         }
       }
     }'

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