# List workers URL: https://docs.hanzo.ai/docs/openapi/compute/listfleetworkers > Returns the caller org's BYO machines — the ones that dialed in via `hanzo link` — with everything each host reported about itself. `GET /v1/compute/fleet/workers` > [Compute →](https://docs.hanzo.ai/docs/openapi/compute) · [All API references →](https://docs.hanzo.ai/docs/openapi) · [Get started →](https://docs.hanzo.ai/docs/guides) | | | | ------------- | ----------------------------------------------- | | **Address** | `https://api.hanzo.ai/v1/compute/fleet/workers` | | **Method** | `GET` | | **Operation** | `listFleetWorkers` | | **Auth** | `Authorization: Bearer $HANZO_API_KEY` | Returns the caller org's BYO machines — the ones that dialed in via `hanzo link` — with everything each host reported about itself. The Machines and GPUs pages fold the same data into their normalized shapes; this is the canonical raw list a fleet view (or the CLI's `status`) reads. ## Request `GET /v1/compute/fleet/workers` takes no parameters and no body — the credential is the whole request. ## Response | Status | Body | Meaning | | --------- | ------------------ | ------- | | `200` | compute.workerList | ok | | `default` | problem-details | refused | `200` body — 30 fields. | Field | In | Type | Always | Description | | ------------------------------ | ---- | --------------------------- | ------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `workers` | body | compute.byoWorker\[] | — | Workers is one row per connected BYO machine, each carrying the host's own report (GPUs, driver versions, capabilities) rather than a normalized view. | | `workers[].arch` | body | string | — | Arch/CPUs/Memory are the connecting host's static CPU spec, mirrored from the registration: Arch is runtime.GOARCH (amd64 \| arm64), Memory is total RAM in BYTES — the same fields a code-linked run-target carries, so the /v1/compute/fleet board renders a linked node's arch + cores + RAM like any other unit. | | `workers[].capabilities` | body | string\[] | — | Capabilities is what this worker offers the org: "studio.render" when the node can render, "engine.serve" when it serves a model endpoint. | | `workers[].cpuModel` | body | string | — | CPUModel is the processor as the host names it ("Apple M3 Max"), for display. | | `workers[].cpus` | body | integer (int64) | — | CPUs is the host's logical core count. | | `workers[].cuda` | body | string | — | Cuda is the host's CUDA toolkit version. | | `workers[].driver` | body | string | — | Driver is the host's NVIDIA kernel driver version — distinct from Cuda, and the one that bounds which CUDA versions can run on this box. | | `workers[].engine` | body | compute.engineAdvertisement | — | | | `workers[].engine.apis` | body | string\[] | — | APIs are the wire formats the engine serves on that one port: "openai", "anthropic", or both. | | `workers[].engine.models` | body | string\[] | — | Models are the model ids the node's own GET /v1/models answered with — what this GPU can actually be asked for. | | `workers[].engine.status` | body | string | — | Status is "ready" when the node's engine answered, "unreachable" when it did not. | | `workers[].engine.url` | body | string | — | URL is the base address the node advertised its engine on — where a model call to this GPU is sent. | | `workers[].firstSeen` | body | string | — | FirstSeen is when this node first dialed in, RFC 3339 — the start of its presence record, which `hanzo unlink` ends. | | `workers[].gpus` | body | compute.byoGPU\[] | — | GPUs are the accelerators the host found on itself. | | `workers[].gpus[].arch` | body | string | — | Arch is the card's native compile target ("gfx1151"), which is what a kernel has to be built for. | | `workers[].gpus[].memoryTotal` | body | string | — | MemoryTotal is the card's VRAM in the units the host reported it in ("122880 MiB") — a display string, not a byte count. | | `workers[].gpus[].name` | body | string | — | Name is the card's model exactly as its own tooling named it ("NVIDIA GB10"), never normalized — an operator matches what they see here against what nvidia-smi tells them on the box. | | `workers[].gpus[].unified` | body | boolean | — | Unified reports that CPU and GPU share one memory pool (an APU or SoC), so MemoryTotal is not private to the GPU and the host competes for it. | | `workers[].hip` | body | string | — | Hip is the host's HIP runtime version, the AMD counterpart to Cuda. | | `workers[].hostname` | body | string | — | Hostname is what the host calls itself. | | `workers[].id` | body | string | — | ID is the node's id in the fleet — the sanitized hostname it registered under, which is also the `unit` its samples and its gpu-jobs lane key on. | | `workers[].jobQueue` | body | string | — | JobQueue is the tasks NAMESPACE this worker claims render jobs out of — "gpu-jobs" unless `hanzo link` was pointed at another. | | `workers[].lastHeartbeat` | body | string | — | LastHeartbeat is the most recent beat this node sent, RFC 3339. | | `workers[].location` | body | string | — | Location is always "on-prem" — a machine that dialed in has no cloud region, and inventing one would put it somewhere it is not. | | `workers[].memory` | body | integer (int64) | — | Memory is the host's total RAM in BYTES. | | `workers[].os` | body | string | — | Os is the host's operating system: linux, darwin or windows. | | `workers[].provider` | body | string | — | Provider is always "byo": this machine is the operator's, not one Hanzo provisioned. | | `workers[].rocm` | body | string | — | Rocm is the host's ROCm version. | | `workers[].status` | body | string | — | Status is "online" when the last heartbeat landed within 90s, else "offline" — so it is a fact about heartbeat freshness, not about the box being powered on. | | `workers[].version` | body | string | — | Version is the `hanzo` CLI version running on the node. | Failure carries the platform error shape — see [Errors](https://docs.hanzo.ai/docs/errors). ## Examples **CLI** ```bash hanzo compute fleet workers ``` **SDK** **.ts** ```ts import { Configuration, ComputeApi } from 'hanzoai'; const api = new ComputeApi(new Configuration({ accessToken: process.env.HANZO_API_KEY })); const { data } = await api.listFleetWorkers(); ``` **.py** ```python from hanzoai.cloud import ApiClient, Configuration from hanzoai.cloud.api import ComputeApi client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"])) result = ComputeApi(client).list_fleet_workers() ``` **.go** ```go cfg := hanzoai.NewConfiguration() cfg.AddDefaultHeader("Authorization", "Bearer "+os.Getenv("HANZO_API_KEY")) client := hanzoai.NewAPIClient(cfg) resp, _, err := client.ComputeAPI.ListFleetWorkers(context.Background()).Execute() if err != nil { return err } ``` **.rs** ```rust use hanzo_client::apis::{configuration::Configuration, compute_api}; let mut cfg = Configuration::new(); cfg.bearer_access_token = std::env::var("HANZO_API_KEY").ok(); let result = compute_api::list_fleet_workers(&cfg, Default::default()).await?; ``` **.java** ```java import ai.hanzo.cloud.ApiClient; import ai.hanzo.cloud.api.ComputeApi; ApiClient client = new ApiClient(); client.setBearerToken(System.getenv("HANZO_API_KEY")); var result = new ComputeApi(client).listFleetWorkers(); ``` **HTTP** ```bash curl https://api.hanzo.ai/v1/compute/fleet/workers \ -H "Authorization: Bearer $HANZO_API_KEY" ``` **MCP** Tool `compute`, op `listFleetWorkers` — POST the JSON-RPC envelope to `https://api.hanzo.ai/v1/mcp`. ```bash 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": "compute", "arguments": { "op": "listFleetWorkers", "input": {} } } }' ``` --- [Compute API](https://docs.hanzo.ai/docs/openapi/compute) · [All Hanzo APIs](https://docs.hanzo.ai/docs/openapi) · [Interactive reference](https://docs.hanzo.ai/docs/openapi/reference)