Hello Vercel Community,

I’m experiencing a persistent 404 Project not found error with the official Vercel MCP integration used by ChatGPT Work.

Environment:

• Vercel team: georgeavila679-8045
• Existing production project: orvia
• Validation project: orvia-validacion-20261019
• Project ID: prj_IOJuUAnvtVude8OC4Z8RbhRFJzkm
• Plan: Hobby

Problem:

Both projects exist and are accessible through my Vercel Dashboard. However, the Vercel MCP integration successfully retrieves orvia but consistently returns 404 not_found for orvia-validacion-20261019, whether queried by project name or project ID.

Troubleshooting already completed:

1. Confirmed the correct Vercel account and team.
2. Verified that the validation project exists in Project Settings.
3. Explicitly authorized both projects in the Vercel OAuth integration.
4. Kept global access to all current and future projects disabled.
5. Reopened the ChatGPT Work session and retried the API queries.
6. Confirmed that the issue persists even in a separate ChatGPT conversation using the same integration.

Example error: GET /v9/projects/{idOrName} → 404 not_found

Failed request reference: cle1:sfo1::z9wt-1792479089916-391f4f195f77

Expected behavior:

The MCP integration should retrieve the authorized validation project just as it retrieves orvia.

Actual behavior:

Only orvia is accessible through MCP, while the validation project returns 404.

Could someone help determine whether this is an OAuth project-scope synchronization issue, an MCP authorization issue, or another API visibility problem?

I would like to restore access without creating duplicate projects, enabling account-wide permissions, or modifying the existing production deployment.

Thank you for your assistance.