Get traces — GET /v1/o11y/traces/{traceId}

Returns one trace's spans as a column/row table, optionally centred on a span and walked a fixed number of levels up and down from it — the read the trace explorer opens a trace with.

GET /v1/o11y/traces/{traceId}

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

Returns one trace's spans as a column/row table, optionally centred on a span and walked a fixed number of levels up and down from it — the read the trace explorer opens a trace with.

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

Request

5 fields.

Field	In	Type	Required
`traceId`	path	string	yes
`spanId`	query	string	—
`levelUp`	query	integer	—
`levelDown`	query	integer	—
`spanRenderLimit`	query	integer	—

Response

Status	Body	Meaning
`200`	o11y.O11yTraceSpanWindow[]	ok
`202`	Approval	held for approval
`default`	problem-details	refused

200 body — 5 fields.

Field	In	Type	Always	Description
`[].columns`	body	string[]	—	Columns names the fields each row carries, in row order.
`[].endTimestampMillis`	body	integer (uint64)	—	EndTimestampMillis is when it closes.
`[].events`	body	any[][]	—	Events are the rows, each positionally matching Columns.
`[].isSubTree`	body	boolean	—	IsSubTree says the window is a subtree of the trace rather than the whole of it.
`[].startTimestampMillis`	body	integer (uint64)	—	StartTimestampMillis is when the window opens.

Failure carries the platform error shape — see Errors.

Examples

CLI

SDK

HTTP

MCP

hanzo o11y traces get <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.searchTraces({ traceId: 'traceId' });

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).search_traces(trace_id='traceId')

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

resp, _, err := client.O11yAPI.SearchTraces(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::search_traces(&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).searchTraces();

curl https://api.hanzo.ai/v1/o11y/traces/<traceId> \
  -H "Authorization: Bearer $HANZO_API_KEY"

Tool o11y, op SearchTraces — 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": "SearchTraces",
           "input": {
             "traceId": "<traceId>"
           }
         }
       }
     }'

O11y API · All Hanzo APIs · Interactive reference

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