Experimental remote binding does not respect `account_id` from config

[Thomascogez]

What versions & operating system are you using?

System:
OS: macOS 15.3.2
CPU: (10) arm64 Apple M2 Pro
Memory: 130.83 MB / 16.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 24.4.1 - ~/.nvm/versions/node/v24.4.1/bin/node
npm: 11.4.2 - ~/.nvm/versions/node/v24.4.1/bin/npm
bun: 1.2.19 - ~/.bun/bin/bun
Watchman: 2024.12.02.00 - /opt/homebrew/bin/watchman
npmPackages:
wrangler: ^4.27.0 => 4.27.0

Please provide a link to a minimal reproduction

No response

Describe the Bug

Hey ! I'm working on a project called cf-script, where it rely on getPlatformProxy function. I saw that experimental remote service binding got implemented (awesome btw !).
So i implemented it and I encountered two problems

• env provided in getPlatformProxy is not propagated to remote binding (from what i see it could come from here

  workers-sdk/packages/wrangler/src/api/remoteBindings/index.ts

  Line 134 in 1655bec

  const config = readConfig({ config: configPath });

  , where env is not passed to readConfig
• I also in my wrangler.json have an "account_id" that seem to not be respected the remote binding are using my default account id

for example I have
wrangler.json

{
	"main": "src/index.ts",
	"name": "worker-name",
	"compatibility_date": "2025-07-01",
	"account_id": "**32409e13d0372a1103f368b45122dc97**", <- second account 
	"r2_buckets": [
		{
			"binding": "BUCKET",
			"bucket_name": "my-cool-bucket",
			"experimental_remote": true
		}
	],
}

and when i try to use my r2 i encountered this error

Error on remote worker: APIError: A request to the Cloudflare API (/accounts/0218984b80d2f636f800f11e006b7eb3/workers/scripts/xxx/edge-preview) failed. <- Main account id

I'd be happy to give minimal reproduction if needed, and also contribute !

Please provide any relevant error logs

No response

[emily-shen]

Hey the env part has been fixed by #10130 and will be out in the next release. we'll look into the account_id bit though! cc @dario-piotrowicz

[penalosa]

This is a duplicate of #9568, which we'll be working on soon