One command
Add Render to any Ashlr Stack project with a single command. Stack runs the auth flow, verifies the credential, and writes every secret slot into Phantom.
stack add render
Or describe what you're building and let Claude pick it up via stack recommend:
stack recommend "host a Next.js frontend" Auth flow
Paste a long-lived API key once. Stack verifies it against the provider's API before writing to Phantom.
How-to: Generate a key at https://dashboard.render.com/u/settings#api-keys.
Secret slots
stack add render writes these 1 secret
slot into your Phantom vault:
RENDER_API_KEY
The values never leave Phantom in plaintext. Your .env file references slot
names, and stack exec -- <cmd> swaps them in at process-spawn time via
Phantom's local proxy.
Related providers in Deploy
- Modal — Serverless compute for AI + data. Token stored in Phantom.
- Vercel — Frontend platform. Stores a scoped access token for deploys + env sync.
- Railway — Infra from a repo. Project-level token stored in Phantom.
- Fly.io — VMs at the edge. Machines API token stored in Phantom.
- Cloudflare — Workers, R2, D1. Account id inferred from the token's scope.
FAQ
Do I need a Render account to use it with Stack?
Yes — Stack provisions Render on your behalf, but it authenticates as you. Paste a long-lived API key once. Stack verifies it against the provider's API before writing to Phantom. If you don't have a credential yet, create one at https://dashboard.render.com and paste it once.
Where does Stack store my Render credentials?
In Phantom Secrets, an E2E-encrypted local vault. Stack writes the secret slot names (RENDER_API_KEY) into .stack.toml — the actual values live only in Phantom and never touch disk in plaintext.
Can I rotate or revoke this integration later?
Yes. Run `stack remove render` to pull the Render service back out (Phantom secrets deleted, MCP entry removed, .stack.toml cleaned up). Rotate the underlying Render credentials in their dashboard — https://dashboard.render.com — and Stack's next `doctor --fix` will pick up the new values.