Check Isocast API health: liveness (ok), configured payment mode (live|mock), OFAC screening status, and a signals freshness block (lastSignalAt, ageSeconds, stale). Free, no wallet or API key required.

List every active Isocast city — slug, display name, country, temperature unit, bucket width, timezone, resolution source, station, and the latest public signal sequence number. Use this to discover which weather markets have signals. Free, no wallet or API key required.

Get one Isocast city by slug, including its current target market day and the Polymarket market URL. Free, no wallet or API key required.

Get a FREE sample Isocast signal for a city — the fixed seq-1 signal (never the latest), or, when that city has no servable sample yet, a REAL past signal from another city labeled via a sampleNote field. Always marked sample: true; never fabricated and never reveals any city's latest signal. Shows the exact shape of a bucket-transition signal (old/new reading, buckets with yes/no/midpoint, market URL) without paying. Free, no wallet or API key required. For live entitled signals, use buy_signals + poll_signals.

Get Isocast pricing and payment metadata — per-signal unit price, minimum spend, currency, network, payTo address, and the volume tier table (Min/Starter/Standard/Pro/Whale). Pass a city to also get its latestSeq. NEVER returns any signal rows. Free, no wallet or API key required.