Use HNW from your assistant.

Ask your assistant this

Any of these prompts work with an assistant that has tool access or can emit links:

• “Settle this: pizza, burger, or biryani?”
• “Pick one of these restaurants for dinner tonight: [list]. Give me a provably fair answer.”
• “Verify this HNW round and show the seed derivation.”

If your assistant supports MCP

The HNW MCP server is public at /api/mcp. Point your MCP-capable client at the endpoint; no API key is required at anonymous tier. See /developers/mcp for the full tool catalog and request shapes.

If your assistant supports tools but not MCP

An OpenAPI-style surface is planned for a future release. In the meantime, use MCP or the deep-link path below.

If your assistant can only send links

Emit a URL and your user clicks it. HNW renders a confirm-and-play page before creating anything — safe for link previews and crawlers.

Solo decision

https://highestnumberwins.com/decide?options=pizza|burger|biryani

Option-pick with win condition

https://highestnumberwins.com/create?mode=option_pick&options=red|blue|green&win_condition=highest

Up to 20 options, 64 bytes each, pipe-separated. URL-encoded separators work too.

Verifying a round

Any agent can audit any HNW round from a stable JSON endpoint: GET /verify/<round_id>.json. Returns commits, reveals, the drand beacon value, the derived seed, and the winner — everything needed to recompute the result locally. Cache is public, max-age=31536000, immutable on settled rounds. See /fairness for the human-readable walkthrough.