Deploy and Host Seedance 2.5 Video Generator (emaki) on Railway

A one-page web app that turns a prompt into a Seedance 2.5 AI video clip. Type what happens in the shot, optionally paste an image URL as the first frame, pick aspect ratio, length and resolution, and the finished clip plays on the page a few minutes later. Clips come from the API of emaki.

About Hosting Seedance 2.5 Video Generator (emaki)

It is a single Node.js service with no npm dependencies: server.js serves the page and two JSON routes, and lib/emaki.js forwards each request to the emaki HTTP API with your key. There is no database and no storage, because the finished clip is served from emaki's CDN. Railway builds the repository, starts node server.js on port 3000 and checks /health. You enter EMAKI_API_KEY when deploying (create one at emaki.ai/settings/apikeys); ACCESS_PASSWORD is generated for you, so only people you share it with can spend the account's credits.

Common Use Cases

A private text-to-video page for a small team, on one shared emaki account
Turning a product photo or illustration into a short clip, the same way as image to video
A starting point for your own app on Seedance 2.5 or Seedance 2.0

Dependencies for Seedance 2.5 Video Generator (emaki) Hosting

An emaki API key; every clip costs credits on that account, the same price as on the website
Node.js 18 or newer (provided by Railway)

Implementation Details

POST /api/generate sends {prompt, model, parameters} to https://emaki.ai/api/video/ai; the page then polls GET /api/status?id= every 5 seconds until the run is completed and plays videoUrl. Set EMAKI_MODEL to seedance_2, seedance_2_fast or seedance_2_mini to switch models. Source: github.com/hanshs474/emaki-video-starter.

Why Deploy Seedance 2.5 Video Generator (emaki) on Railway?

Railway is a singular platform to deploy your infrastructure stack. Railway will host your infrastructure so you don't have to deal with configuration, while allowing you to vertically and horizontally scale it.

By deploying Seedance 2.5 Video Generator (emaki) on Railway, you are one step closer to supporting a complete full-stack application with minimal burden. Host your servers, databases, AI agents, and more on Railway.