# List marketing templates `GET /api/v1/marketing-templates` The store's marketing message library, newest first. A template holds the merchant's WORKING COPY, which is what the next publish will snapshot and is not necessarily what is live: current_version_id names the version the send path renders. TWO FILTERS, NOT TWO ROUTES. ?channel= narrows to email, sms or push and ?status= to draft, active or archived. A value outside either enum is a 400 rather than an unfiltered page, because a page that quietly ignored your filter reads as "the store has no sms templates" when it has ten. PAGED BY CREATION TIME, not by updated_at. Ordering on updated_at would move a template to the front of the list every time the merchant saved it, and a client walking the library would meet the same row twice. ## Query parameters - `channel` (email | sms | push) — Narrow to one surface. Omit it for all three. An unrecognised value is a 400 rather than an unfiltered page: a client filtering on "e-mail" and receiving every template in the store would read an sms body as email copy. - `status` (draft | active | archived) — Filter by lifecycle state. Omit it to receive all three. ONLY an active template has a published version behind it, so ?status=active is how you ask what a campaign can send right now; draft has never been published and archived has been retired, and neither is sendable. An unrecognised value is a 400 for the same reason as channel. - `limit` (integer) — Rows per page. Out of range is a 400 rather than a silent clamp, so a client asking for more than 100 learns it did not get it. - `after` (string) — The next_cursor from the previous page. Opaque: decode nothing from it and construct nothing by hand, since its encoding is not part of this contract. Omit it to read the first page. ## Responses - `200` — Success - `400` — The request was refused before any state changed. `code` is one of: `invalid_body`, a write body this route will not take. `reason` partitions it and `field` names the key when one key is at fault. `invalid_query`, a query parameter, including limit and after. `invalid_text`, a NUL byte or bytes that are not valid UTF-8 anywhere in the path, the query or the body. Strip control characters before sending. `idempotency_key_required`, a write sent without the Idempotency-Key header. `invalid_request`, an Idempotency-Key longer than 255 bytes. Routes add their own codes for rules only they know. Switch with a default arm. - `401` — No credential, or one this API does not accept. `code` is always `unauthorized`. THE BODY IS DELIBERATELY UNINFORMATIVE. An expired key, a revoked key, a publishable key, a key belonging to another merchant and a key that never existed are all refused with the same bytes, so this response cannot be used to probe which keys exist. Check the key's state in the dashboard rather than inferring it here. Send the key as `Authorization: Bearer ` or as `X-API-Key: `. It is never accepted in a query string. - `403` — The key lacks the read_marketing_campaigns scope. `code` is `insufficient_scope` and the message names the scope to ask the merchant for. - `429` — Too many requests. `code` is `rate_limited`. Two limits apply independently: one on the credential and the route family, one on the client address. The headers describe whichever has less left, so honouring Retry-After always clears the window that bound. - `default` — Any status this operation does not list, in the same envelope. A 5xx means the request may or may not have applied. Retry it with the SAME Idempotency-Key: that is the only way to find out without risking a duplicate, and it is what the key is for. A few 4xx conditions arrive here rather than as a listed status because they depend on the merchant's plan or on a module being wired: 402 when a quota or a plan limit is reached, and 503 when a capability the route needs is not configured on this deployment. Both carry a `code` naming which. ## Example ```bash curl --request GET \ --url 'https://api.mercemur.com/api/v1/marketing-templates' \ --header 'Authorization: Bearer ' ```