# List overview URL: https://docs.hanzo.ai/docs/openapi/o11y/post-o11y-third-party-apis-overview-list > Lists the external domains the instrumented services call, with request rate, error percentage and latency per domain. `POST /v1/o11y/third-party-apis/overview/list` > [O11y →](https://docs.hanzo.ai/docs/openapi/o11y) · [All API references →](https://docs.hanzo.ai/docs/openapi) · [Get started →](https://docs.hanzo.ai/docs/guides) | | | | ------------- | ------------------------------------------------------------- | | **Address** | `https://api.hanzo.ai/v1/o11y/third-party-apis/overview/list` | | **Method** | `POST` | | **Operation** | `post_o11y_third-party-apis_overview_list` | | **Auth** | `Authorization: Bearer $HANZO_API_KEY` | Lists the external domains the instrumented services call, with request rate, error percentage and latency per domain. Rows whose domain is a bare IP address are dropped unless show\_ip asks for them. ## Request 14 fields, body `application/json` (required). | Field | In | Type | Required | Description | | ------------------------- | ---- | ------------------------- | -------- | --------------------------------------------------------------------------------- | | `domain` | body | string | — | Domain narrows the read to one external domain (the domain view requires it). | | `end` | body | integer (uint64) | — | End is the window's end, epoch milliseconds. | | `endpoint` | body | string | — | Endpoint narrows the domain view to one endpoint. | | `filter` | body | o11y.O11yDomainFilter | — | | | `filter.expression` | body | string | — | Expression is the predicate, e.g. `http.status_code >= 500`. | | `groupBy` | body | o11y.O11yDomainGroupBy\[] | — | GroupBy adds grouping columns to the result. | | `groupBy[].description` | body | string | — | Description describes the field, when known. | | `groupBy[].fieldContext` | body | string | — | FieldContext says which plane the field lives on, e.g. attribute, resource, span. | | `groupBy[].fieldDataType` | body | string | — | FieldDataType is the field's type: string, int64, float64 or bool. | | `groupBy[].name` | body | string | — | Name is the field's name. | | `groupBy[].signal` | body | string | — | Signal is the telemetry signal the field belongs to, e.g. traces. | | `groupBy[].unit` | body | string | — | Unit is the field's unit, when known. | | `show_ip` | body | boolean | — | ShowIP keeps rows whose domain is a bare IP address; they are dropped otherwise. | | `start` | body | integer (uint64) | — | Start is the window's start, epoch milliseconds. | ## Response | Status | Body | Meaning | | --------- | ------------------- | ----------------- | | `200` | o11y.O11yDomainsOut | ok | | `202` | Approval | held for approval | | `default` | problem-details | refused | `200` body — 16 fields. | Field | In | Type | Always | Description | | --------------------------------- | ---- | ---------------------------- | ------ | --------------------------------------------------------- | | `data` | body | o11y.O11yDomainsAnswer | — | | | `data.data` | body | o11y.O11yDomainsData | — | | | `data.data.results` | body | any\[] | — | Results is one entry per query. | | `data.meta` | body | o11y.O11yQueryStats | — | | | `data.meta.bytesScanned` | body | integer (uint64) | — | BytesScanned is how many bytes the query read. | | `data.meta.durationMs` | body | integer (uint64) | — | DurationMS is how long the query took, in milliseconds. | | `data.meta.rowsScanned` | body | integer (uint64) | — | RowsScanned is how many rows the query read. | | `data.meta.stepIntervals` | body | object | — | StepIntervals is the step used per query, in seconds. | | `data.meta.stepIntervals.*` | body | integer (uint64) | — | | | `data.type` | body | string | — | Type names the result shape: scalar, time\_series or raw. | | `data.warning` | body | o11y.O11yQueryWarning | — | | | `data.warning.message` | body | string | — | Message is the warning. | | `data.warning.url` | body | string | — | URL points at the relevant documentation. | | `data.warning.warnings` | body | o11y.O11yQueryWarningNote\[] | — | Warnings carries additional notes. | | `data.warning.warnings[].message` | body | string | — | Message is the note. | | `status` | body | string | — | Status is "success". | Failure carries the platform error shape — see [Errors](https://docs.hanzo.ai/docs/errors). ## Examples **CLI** ```bash hanzo o11y third-party-apis overview list ``` **SDK** **.ts** ```ts import { Configuration, O11yApi } from 'hanzoai'; const api = new O11yApi(new Configuration({ accessToken: process.env.HANZO_API_KEY })); const { data } = await api.postO11yThird-party-apisOverviewList({ domain: "", end: 0 }); ``` **.py** ```python 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_third-party-apis_overview_list(domain="", end=0) ``` **.go** ```go cfg := hanzoai.NewConfiguration() cfg.AddDefaultHeader("Authorization", "Bearer "+os.Getenv("HANZO_API_KEY")) client := hanzoai.NewAPIClient(cfg) resp, _, err := client.O11yAPI.PostO11yThird-party-apisOverviewList(context.Background()).Execute() if err != nil { return err } ``` **.rs** ```rust 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::post_o11y_third-party-apis_overview_list(&cfg, Default::default()).await?; ``` **.java** ```java 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).postO11yThird-party-apisOverviewList(); ``` The method above is the one at the current release of the document. `hanzoai@8.5.914` (npm) and `hanzoai@8.5.914` (PyPI) were generated from an earlier release, where this operation carried a different id, so it spells the method differently — regenerating the clients is what makes the two agree. [SDKs →](https://docs.hanzo.ai/docs/sdks) **HTTP** ```bash curl -X POST https://api.hanzo.ai/v1/o11y/third-party-apis/overview/list \ -H "Authorization: Bearer $HANZO_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "domain": "", "end": 0 }' ``` **MCP** MCP reaches **o11y** through the `o11y` tool, which names its 307 operations with its own verbs — this one among them, under a name only MCP declares. `describe` explains any of them: ```bash 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": "list_o11y_autocomplete_aggregate_attributes" } } }' ``` --- [O11y API](https://docs.hanzo.ai/docs/openapi/o11y) · [All Hanzo APIs](https://docs.hanzo.ai/docs/openapi) · [Interactive reference](https://docs.hanzo.ai/docs/openapi/reference)