Permit MCP Gateway vs Pushary

Permit MCP Gateway

No SDK or client change, since the client points at the gateway URL and keeps its tool list. Approvals are Enterprise only, through a demo, with no published price.

Pushary

Six small tools with a detailed skill that says when to ask, when to notify and when to stay quiet. No free plan, and the 3-day trial takes a card up front.

Permit MCP Gateway

1. Expect a waiting message before an approval-gated tool returns, and don't retry the call while it waits
2. Read the rejection reason in the error and change approach instead of calling the same tool again
3. Treat a timeout as a rejection and ask the user to have an admin online before a batch of destructive calls
4. Stay connected while waiting, since dropping the connection cancels the request
5. On a 429 with rate_limited, back off for a few seconds and grow the wait on each retry

Pushary

1. Read answered, status and handoffAction on every result, and never treat a timeout as approval
2. Expect ask_user to return at once with answered: false when the user's mode is notify-only or terminal-only
3. Poll wait_for_answer once (it waits at most 55 seconds), then follow the handoff instead of looping
4. Cancel a live question with cancel_question before asking the same thing in chat
5. Group open decisions into one select question, since each push interrupts the user