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[ARTICLE · art-169301] src=vercel.com ↗ pub= topic=ai-agents verified=true sentiment=↑ positive

Vercel Sandbox now supports managed npm credentials

Vercel Sandbox now installs private npm packages using credentials stored in team Shared Environment Variables, with support for custom registries including GitHub Packages and JFrog Artifactory. Developers pass `credentials: { npm: true }` when creating a sandbox, and the firewall adds authentication to install requests so a coding agent can install dependencies without seeing the tokens, which stay outside the sandbox. Vercel instructs users to update their Sandbox SDK or CLI to the latest version.

by read1 min views5 publishedNov 12, 2026

Vercel Sandbox can now install your team's private npm packages using credentials stored in team Shared Environment Variables. Custom registries such as GitHub Packages and JFrog Artifactory are also supported.

Pass credentials: { npm: true } when creating a sandbox to let it use your team's existing npm credentials.

Tokens stay outside the sandbox. The firewall adds authentication to install requests sent to your configured registries, so a coding agent can install dependencies without seeing the tokens.

Update your Sandbox SDK or CLI to the latest version.

Read the npm credentials documentation to get started.

source & further reading
vercel.com — original article Build Your Own AI Coding Agent Harness Token Pass now includes $150 in tokens for $30/month Parallel Decisions now available on AI Gateway for free
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