# Create subscribers URL: https://docs.hanzo.ai/docs/openapi/marketing/post-marketing-lists-by-id-subscribers > Adds an address to one of the org's lists, or updates it when it is already there, and answers 201 or 200 with the row. `POST /v1/marketing/lists/{id}/subscribers` > [Marketing →](https://docs.hanzo.ai/docs/openapi/marketing) · [All API references →](https://docs.hanzo.ai/docs/openapi) · [Get started →](https://docs.hanzo.ai/docs/guides) | | | | ------------- | ---------------------------------------------------------- | | **Address** | `https://api.hanzo.ai/v1/marketing/lists/{id}/subscribers` | | **Method** | `POST` | | **Operation** | `post_marketing_lists_by_id_subscribers` | | **Auth** | `Authorization: Bearer $HANZO_API_KEY` | Adds an address to one of the org's lists, or updates it when it is already there, and answers 201 or 200 with the row. Pending mails the address a link to confirm. An address that unsubscribed or complained cannot be put back by the org: it is 409, and the person rejoins by subscribing and confirming again. Org admin only. ## Request 13 fields, body `application/json` (required). | Field | In | Type | Required | Description | | ----------- | ---- | --------------- | -------- | ----------------------------------------------------------------------------------------------------------------------------------- | | `id` | path | string | yes | ID is the list, by id or slug, from the path. | | `basis` | body | string | — | Basis is the consent basis to record: explicit, legitimate\_interest or unverified (the default). | | `consentAt` | body | integer (int64) | — | ConsentAt is when consent was given, unix seconds, when it was given before this call; on add only. | | `email` | body | string | — | Email is the address to add. | | `fields` | body | object | — | Fields set custom field values by key; an empty value clears one. | | `fields.*` | body | string | — | | | `id` | body | string | — | ID is the list, by id or slug, from the path. | | `language` | body | string | — | Language is a BCP 47 tag. | | `name` | body | string | — | Name is the person's name; at most 200 characters. | | `ref` | body | string | — | Ref is where the subscriber came from (a form id, a page); on add only. | | `sid` | body | integer (int64) | — | SID is the subscriber to change, from the path; ignored on add. | | `status` | body | string | — | Status is subscribed (the default on add), pending, which mails the address a link to confirm, or unsubscribed, bounced or cleaned. | | `tags` | body | string\[] | — | Tags replace the subscriber's tags. | ## Response | Status | Body | Meaning | | --------- | --------------- | ------- | | `200` | marketing.Added | ok | | `201` | marketing.Added | created | | `default` | problem-details | refused | `200` body — 31 fields. | Field | In | Type | Always | Description | | ------------------ | ---- | ----------------- | ------ | ------------------------------------------------------------------------------------------------------------------- | | `clicks` | body | integer (int64) | — | Clicks counts the clicks reported. | | `confirmedAt` | body | integer (int64) | — | ConfirmedAt is when the subscription was confirmed or, for one that needed no confirmation, began; 0 while pending. | | `consent` | body | marketing.Consent | — | | | `consent.at` | body | integer (int64) | — | At is when it was given, unix seconds; for an import, the date the file carried when it carried one. | | `consent.basis` | body | string | — | Basis is explicit, legitimate\_interest or unverified. | | `consent.dnt` | body | boolean | — | DNT records that the request carried Do Not Track (DNT: 1). | | `consent.gpc` | body | boolean | — | GPC records that the request carried Global Privacy Control (Sec-GPC: 1). | | `consent.ip` | body | string | — | IP is the network address it was given from, when it was given here. | | `consent.language` | body | string | — | Language is the language it was asked in. | | `consent.method` | body | string | — | Method is how it was given: double\_opt\_in, single\_opt\_in, import, api, preferences or commerce. | | `consent.page` | body | string | — | Page is the form or page it was given on. | | `created` | body | boolean | — | Created is true when the address was not on the list before. | | `createdAt` | body | integer (int64) | — | CreatedAt is when the row was created, unix seconds. | | `email` | body | string | — | Email is the address, lower-cased and trimmed; one row per address per list. | | `fields` | body | object | — | Fields are the values of the org's custom fields, by key. | | `fields.*` | body | string | — | | | `id` | body | integer (int64) | — | ID is the subscriber's id within the org. | | `language` | body | string | — | Language is the subscriber's language, a BCP 47 tag. | | `lastClickAt` | body | integer (int64) | — | LastClickAt is the last click the email plane reported. | | `lastOpenAt` | body | integer (int64) | — | LastOpenAt is the last open the email plane reported. | | `lastSentAt` | body | integer (int64) | — | LastSentAt is the last broadcast sent to them. | | `list` | body | string | — | List is the list's id. | | `name` | body | string | — | Name is the person's name, as given. | | `opens` | body | integer (int64) | — | Opens counts the opens reported. | | `person` | body | string | — | Person is the CRM person the address is: the key the event stream, the CRM and Insights join on. | | `ref` | body | string | — | Ref is that place: a form id, a page, an import batch id. | | `source` | body | string | — | Source is the kind of place the membership came from: form, page, api, import or commerce. | | `status` | body | string | — | Status is pending, subscribed, unsubscribed, bounced, complained or cleaned. | | `tags` | body | string\[] | — | Tags label the subscriber; each at most 64 characters. | | `unsubscribedAt` | body | integer (int64) | — | UnsubscribedAt is when the subscriber left; 0 while they have not. | | `updatedAt` | body | integer (int64) | — | UpdatedAt is the last change, unix seconds. | Failure carries the platform error shape — see [Errors](https://docs.hanzo.ai/docs/errors). ## Examples **CLI** ```bash hanzo marketing lists subscribers create ``` **SDK** **.ts** ```ts import { Configuration, MarketingApi } from 'hanzoai'; const api = new MarketingApi(new Configuration({ accessToken: process.env.HANZO_API_KEY })); const { data } = await api.postMarketingListsByIdSubscribers({ id: 'id', basis: "", consentAt: 0 }); ``` **.py** ```python from hanzoai.cloud import ApiClient, Configuration from hanzoai.cloud.api import MarketingApi client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"])) result = MarketingApi(client).post_marketing_lists_by_id_subscribers(id='id', basis="", consent_at=0) ``` **.go** ```go cfg := hanzoai.NewConfiguration() cfg.AddDefaultHeader("Authorization", "Bearer "+os.Getenv("HANZO_API_KEY")) client := hanzoai.NewAPIClient(cfg) resp, _, err := client.MarketingAPI.PostMarketingListsByIdSubscribers(context.Background()).Execute() if err != nil { return err } ``` **.rs** ```rust use hanzo_client::apis::{configuration::Configuration, marketing_api}; let mut cfg = Configuration::new(); cfg.bearer_access_token = std::env::var("HANZO_API_KEY").ok(); let result = marketing_api::post_marketing_lists_by_id_subscribers(&cfg, Default::default()).await?; ``` **.java** ```java import ai.hanzo.cloud.ApiClient; import ai.hanzo.cloud.api.MarketingApi; ApiClient client = new ApiClient(); client.setBearerToken(System.getenv("HANZO_API_KEY")); var result = new MarketingApi(client).postMarketingListsByIdSubscribers(); ``` 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/marketing/lists//subscribers \ -H "Authorization: Bearer $HANZO_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "basis": "", "consentAt": 0 }' ``` **MCP** MCP reaches **marketing** through the `marketing` tool, which names its 82 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_marketing_audiences" } } }' ``` --- [Marketing API](https://docs.hanzo.ai/docs/openapi/marketing) · [All Hanzo APIs](https://docs.hanzo.ai/docs/openapi) · [Interactive reference](https://docs.hanzo.ai/docs/openapi/reference)