Deploy Fastify with Codex

Install the skill

Run this in your project and choose Local or Global.

npx ezhst skill install

Run Codex in your project folder with network access enabled, because ezhst must reach the EasyHost API.

If Codex does not discover the skill, ask it to read the installed SKILL.md or skill.md first.

Tell Codex to deploy

Deploy this Fastify app to EasyHost. Read the EasyHost skill first. Report the live URL when it is running.

What the agent runs

npx ezhst projects create my-project --link
npx ezhst apps create my-app
npx ezhst link --project <project-slug> --app <app-slug>
npx ezhst env import .env
npx ezhst deploy

Fastify needs no extra build settings, so the agent can run the standard deploy.

Fastify details to check

Fastify binds to localhost by default, so you must pass host: "0.0.0.0".

Forgetting host is the most common Fastify deploy failure: the build succeeds, but the app never receives traffic.

If the deploy fails

The agent should read the build log, fix the cause and deploy again. You can run the same commands yourself.

npx ezhst deployments log --json
npx ezhst logs --tail 200 --json

If the build passes but nothing loads, see why a Fastify app is unreachable. See the Fastify hub for every Fastify guide, or free Fastify hosting for what is included.

Frequently asked questions

Can Codex create an EasyHost account for me?

Yes. The skill tells the agent to ask for your name, email and password and then register. You then give the agent the 6-digit verification code from your inbox, and it runs ezhst verify <code> before anything else.

Will Codex see my secrets?

The agent can read files and command output in its session. The skill tells it to put secrets in env vars and not to print them back unless you ask.

Start for free

Install the skill, choose Global or Local, then tell your agent to deploy. No credit card, no config files.

npx ezhst skill install