nc://oddsradar

Odds Radar: Polymarket odds, a persistent watchlist and its alerts. A Nodecode rewrite of WV629/hermes-oddsradar by WV629.

Get it

Tell the agent "add the oddsradar cell", or run nodecode add nc://oddsradar.

Set it up

Nothing to set up. Both Polymarket hosts are public and read-only: no key, no account, no wallet, no trading. The settings exist if you want them, in the oddsradar section of config.jsonc:

A setting out of range (a max_watches of 0) refuses the start, and the refusal names the setting.

Use it

Ask for the odds and the model reaches for a tool:

• odds_search("fed cut") — active markets with their odds. Prices are probabilities, 0-1.
• odds_market("fed-cut-december") — one market in full: every outcome, the live CLOB midpoint, 24h and 7d moves in points, volume, liquidity, the end date, the resolution, and a 7-day sparkline. A polymarket.com link works as well as a slug; an event with several markets answers with the slugs to pick.
• odds_watch("add", market="fed-cut-december", above=60) — the persistent watchlist. move_pts alerts when the odds move that many points from the last alert (5 when no other rule is given); above and below alert once when the odds cross that percent, and re-arm after a one-point pullback.
• odds_check() — every watch evaluated now, answering the alerts that fired: moves, crossings, resolutions. Firing resets that watch's baseline, so one move alerts once; peek=true looks without consuming anything.
• odds_movers() — the biggest 24h moves among the most-traded markets.

The operator has the same engine as one command: /oddsradar show <url|slug>, /oddsradar <query>, /oddsradar watch <url|slug> [move=5] [above=60] [below=40], /oddsradar list, /oddsradar unwatch <id>, /oddsradar check, /oddsradar movers. Bare, /oddsradar offers a row to type a market in.

The watchlist is one JSON file, written atomically and under one lock, so two turns — or a turn and a check — never clobber each other, and it survives restarts. A scheduled /oddsradar check (or odds_check from a cron prompt) is the recurring alert: the rules decide, so the check costs no reasoning at all.

A fall prints with its sign (▼ -18.0 pts), and an alert names both prices (37.5% → 19.5% in 69s) and the market's page.

Every request is a read-only HTTPS GET to gamma-api.polymarket.com (search, markets, events) or clob.polymarket.com (midpoints, price history), with a 10-second timeout; the client refuses any other host. Nothing else leaves the machine: no key, no telemetry, no subprocess, and the watchlist stays in this home.

What is in it

License

MIT, the original's: see LICENSE and NOTICE.