Card #2931 · OpenAI Platform & APIs
Write actions blocked for custom MCP servers on Business plans
Merchants on the ChatGPT Business plan are unable to use write tools in custom MCP servers, as calls are blocked by safety checks before reaching the server. Additionally, Developer Mode appears to be locked at the workspace level, contradicting official documentation.
Pain score
0.15/ 1.00 · weighted product of four components
Reach0.32distinct authors (log-normalized)
Recency1.00freshness decay, half-life months
Engagement1.00upvotes + comments, normalized
Monetization0.50willingness-to-pay cues in evidence
§ Evidence — 3 verified quotes
When ChatGPT attempts to invoke any write tool, it never reaches our MCP server. No request hits our logs or API.
Developer Mode is locked at workspace level (shows as Enterprise-only)
This directly contradicts the official Apps capabilities table, which lists both Write actions and Custom (MCP) as available for Business plans.
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