---
title: Live demo: validate, deny, revoke an MCP license key · Stevens Keys
source: https://stevens-keys.pages.dev/demo
description: Try Stevens Keys in your browser: issue a sandbox license key, validate it, revoke it, and watch the next call get denied. Test mode.
publisher: Stevens Keys (Canada Site Ops)
---

# Try Stevens Keys: live sandbox demo

**Test mode sandbox.** This page talks to the real API, but only to a dedicated demo product. Demo keys are throwaway, expire after 24 hours, allow 50 calls, and can't touch any creator's data.

1. Issue a demo key
2. Validate it (calls `POST /v1/validate`, the same endpoint your MCP server would)
3. Revoke it
4. Validate again: the very next call is denied
5. Try a made-up key

Key: `none yet`

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Responses appear here.
```

Rate limited per IP (10 demo keys/hour). Ready to use it for real? Read the [docs](https://stevens-keys.pages.dev/docs) or [create a creator account](https://stevens-keys.pages.dev/dashboard?signup=1).

### More from Stevens Keys

- [Surface](https://nova-otter-delta-cloud.grok.me): free MCP server with per-request metering
- [Usage Lab](https://usage-lab.pages.dev/)
- [Server Track Lab](https://server-track-lab.pages.dev/)
- [API Meter Lab](https://api-meter-lab.pages.dev/)

Machine files: https://stevens-keys.pages.dev/llms.txt · https://stevens-keys.pages.dev/openapi.json · https://stevens-keys.pages.dev/mcp · https://stevens-keys.pages.dev/agent-quickstart.md