API Reference / Endpoints

Update Landing Page

Updates any subset of the landing page's structured fields. On a published page the change goes live immediately (the edge cache is purged for you). Available on every plan with an account API key.

Endpoint Details

URL: https://waitlister.me/api/v1/waitlist/{waitlistKey}/landing-page
Method: PATCH

Request

Body Parameters

Any subset of the fields from Create Landing Page — headline, description, button_text, collect_name, collect_phone, background, theme, seo. At least one field is required. Unknown keys return 400 with the allowed list.

Example Request

bash

curl -X PATCH "https://waitlister.me/api/v1/waitlist/WAITLIST_KEY/landing-page" \
  -H "Content-Type: application/json" \
  -H "X-Api-Key: wl_acct_your-account-api-key" \
  -d '{ "headline": "Join 500+ others on the waitlist", "theme": "dark" }'

Response

Success Response `200`

Returns the updated structured view — the same shape as Get Landing Page.

AI-Built Pages Return 409 for Copy Fields

Pages built with the AI builder keep their copy inside the generated page, so the structured copy/structure fields (headline, description, button_text, collect_name, collect_phone, background) return 409 with a pointer to the generate endpoint. Edit AI pages with POST …/landing-page/generate and "is_edit": true — or in the dashboard.

theme and seo live outside the generated page and can be PATCHed on both page types.

Error Responses

Status Code	Description
`400`	Empty body, unknown key (message lists allowed keys), or a field over its cap
`401`	Missing or invalid API key / waitlist key
`404`	No landing page yet — create one first
`409`	Copy field on an AI-built page — use the generate endpoint
`429`	Rate limit exceeded (5/min; 10/min on Growth+)
`503`	The landing-page API is temporarily disabled