Render Demo Preview
render_demo_previewRender a quick 480p/25fps preview clip from a demo.
How it works ↓Pricing
Per call
$0.02
Model
time-based
Pay only for what you use. No subscriptions.
Inputs
demo_path *
stringend_time_ms
integernulloutput_path
stringnullpadding_ms
integernullstart_time_ms
integernullextra_console_variables
arraynullwolfcamql_bin
stringnullInput Parameters
Cost per run
Execution cost$0.02
About Render Demo Preview
Render a quick 480p/25fps preview clip from a demo. Use this FIRST to verify you have the right moment before a full-quality render. The demo is cut to the given server-time range (plus padding) and rendered completely in the background via xvfb-run + wolfcamql + ffmpeg. start_time_ms / end_time_ms come directly from seek_demo or get_frame_state server_time_ms values. Blocks until render is done. Requires WOLFCAMQL_BIN, WOLFCAMQL_BASEPATH env vars and xvfb-run + ffmpeg to be installed.
Frequently Asked Questions
Render a quick 480p/25fps preview clip from a demo. Use this FIRST to verify you have the right moment before a full-quality render. The demo is cut to the given server-time range (plus padding) and rendered completely in the background via xvfb-run + wolfcamql + ffmpeg. start_time_ms / end_time_ms come directly from seek_demo or get_frame_state server_time_ms values. Blocks until render is done. Requires WOLFCAMQL_BIN, WOLFCAMQL_BASEPATH env vars and xvfb-run + ffmpeg to be installed.
Render Demo Preview costs $0.02 per call on xpay. No subscription, no minimums. Pay only for the calls you make. New accounts get $5 in free credits.
Connect the Mcps MCP endpoint to your client — Claude Code: claude mcp add --transport http quakelive "https://quakelive.mcp.xpay.sh/mcp?key=YOUR_XPAY_KEY"; Cursor/Windsurf/Cline/VS Code: same URL in mcp.json. The agent will see render_demo_preview as a callable tool with the input schema and run it directly. (Unified across all providers: https://mcp.xpay.sh/mcp?key=YOUR_XPAY_KEY, then xpay_run with toolPath quakelive/render_demo_preview.)
Yes — that's exactly what xpay is for. You don't need a Mcps account or API key. Sign up at xpay.tools (Google or email), get $5 free credit, and run Render Demo Preview immediately. Billing flows through your xpay balance.
Render Demo Preview accepts 7 input parameters: demo_path, end_time_ms, output_path, padding_ms, start_time_ms, extra_console_variables…. See the input schema and runnable form on this page for details and to test live.

