hyperframes/skills/hyperframes-cli/references/cloud.md

cloud — HeyGen-hosted rendering (zero-infra)

hyperframes cloud render renders a composition on HeyGen's managed cloud. The CLI zips the project, uploads it, runs the render on HeyGen's infrastructure (Chromium + FFmpeg), and downloads the finished video. Nothing to deploy, and no Chrome/FFmpeg/AWS to manage; you pay per credit.

npx hyperframes auth login            # one-time sign-in
npx hyperframes cloud render          # zip, upload, render, download

When to use cloud vs lambda vs local

• hyperframes render (local): fastest iteration loop, use while authoring.
• hyperframes cloud render: zero-infra. HeyGen runs the render and you pay per credit. This is the default answer to "render in the cloud" when you don't want to manage Chrome/FFmpeg/AWS.
• hyperframes lambda render: bring-your-own-AWS distributed rendering with chunked parallelism. Only worth it when you've already invested in AWS (see lambda.md).

Authentication

Cloud rendering needs a HeyGen credential, stored at ~/.heygen/credentials (0600) and shared with the heygen CLI: sign in with one and the other picks up the session.

npx hyperframes auth login              # OAuth 2.0 + PKCE, opens the browser
npx hyperframes auth login --api-key    # CI/headless: hidden prompt, or pipe: echo "$HEYGEN_API_KEY" | ... --api-key
npx hyperframes auth status             # active credential source, identity, billing snapshot
npx hyperframes auth refresh            # force-refresh an OAuth token before a long job
npx hyperframes auth logout             # clear the stored credential

Credential resolution order (first match wins): HEYGEN_API_KEY, then HYPERFRAMES_API_KEY, then ~/.heygen/credentials. Point at a different backend with HEYGEN_API_URL (default https://api.heygen.com).

The render pipeline

cloud render runs end-to-end:

1. Resolve the project: a local directory (default .), or skip the upload with --asset-id / --url.
2. Auto-detect aspect ratio from the entry HTML's data-width/data-height.
3. Zip the project (same ignore set as hyperframes publish, so it excludes .git, node_modules, dist, and so on).
4. Upload the zip to POST /v3/assets, yielding an asset_id.
5. Submit the render to POST /v3/hyperframes/renders, yielding a render_id.
6. Poll GET /v3/hyperframes/renders/{id} until it completes or fails (skip with --no-wait).
7. Download the signed video URL to disk.

Render options

Flag	Default	Meaning
--fps	30	Frames per second, 1–240.
--quality	standard	draft, standard, or high.
--format	mp4	mp4, webm, or mov (webm/mov carry alpha).
--resolution	1080p	1080p or 4k (4k billed at 1.5×).
--aspect-ratio	auto	16:9, 9:16, or 1:1. Auto from a local project's data-width/data-height; defaults to 16:9 for --asset-id/--url.
--composition / -c	index.html	Entry HTML file inside the zip.
--output / -o	renders/<render_id>.<ext>	Local download destination.

npx hyperframes cloud render . \
  --composition compositions/intro.html \
  --output ./renders/intro.mp4

npx hyperframes cloud render --quality high --fps 60

--resolution 4k cannot combine with --format webm/mov: the 4k supersampling path has no alpha channel. Render 4k as mp4, or render alpha at native resolution.

Templates and variables

Cloud rendering supports variables: declare data-composition-variables on the composition, then fill them at render time.

npx hyperframes cloud render --variables '{"title":"Q4 Recap","theme":"dark"}'
npx hyperframes cloud render --variables-file ./vars.json
npx hyperframes cloud render --variables '{"title":"Q4 Recap"}' --strict-variables

For a local project the CLI validates --variables against the declared schema before uploading. For --asset-id/--url the schema lives server-side, so mismatches surface as a hyperframes_project_invalid API error.

Upload once, re-render many is the idiomatic template loop: render a local project to get its asset_id, then re-submit against that asset with new values (no re-zip, no re-upload).

npx hyperframes cloud render ./card-template                              # note the asset_id printed on upload
npx hyperframes cloud render --asset-id asst_abc123 --variables '{"name":"Ada"}'
npx hyperframes cloud render --asset-id asst_abc123 --variables '{"name":"Linus"}'

For high-volume personalized batches, the Lambda path adds a JSONL fan-out (see lambda.md). The full variables schema (types, declarative bindings, sub-composition overrides, precedence) lives in the hyperframes-core skill.

Fire-and-forget and webhooks

By default the CLI blocks, polls, and downloads. Combine --no-wait (submit and exit with just the render_id) with --callback-url (HTTPS webhook on terminal status) for true fire-and-forget:

npx hyperframes cloud render --callback-url https://example.com/hf-hook --no-wait
#    Poll later with: hyperframes cloud get hfr_def456

Flag	Meaning
--no-wait	Submit and exit immediately; print the render_id.
--callback-url	HTTPS webhook fired when the render terminates.
--callback-id	Opaque tracking ID echoed in webhook payloads.
--poll-interval	Poll cadence in seconds (default 10).
--max-wait	Max poll duration in minutes (default 60).

Managing renders

npx hyperframes cloud list                 # recent renders (--limit, --token, --all)
npx hyperframes cloud get hfr_def456       # full detail + short-lived signed video_url
npx hyperframes cloud delete hfr_def456    # soft-delete (--no-confirm to skip the prompt)

video_url and thumbnail_url are short-lived presigned URLs, so re-fetch with cloud get rather than caching them.

Safe retries

The CLI transparently retries a 401 by force-refreshing the OAuth token and replaying. That's harmless for reads, but the zip upload (POST /v3/assets) is not idempotent: a blind retry creates a duplicate asset and bills twice. Pass --idempotency-key so retries are safe:

npx hyperframes cloud render . --idempotency-key "$(uuidgen)"

The key is forwarded to both upload and submit (the server scopes idempotency per-endpoint, so reusing one value is safe). Use any opaque string in [A-Za-z0-9_:.-], 1–255 chars.

Full flag reference: docs /deploy/cloud and /packages/cli#hyperframes-cloud.