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Seeded Coin Flip: Seeded Coin Flip generates a reproducible sequence of binary outcomes from bounded caller-supplied values without an external provider. Call Seeded Coin Flip when an agent needs a reproducible decision that another run can independently replay. Returns the deterministic selection plus seed provenance, population bounds, and the operation-specific outcome for Seeded Coin Flip as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stateless, memory-on…

Upcoming space events: dockings, spacewalks, landings (next 5)

The single next Starship flight with a live countdown in seconds

A Hyperliquid account's perpetuals state — open positions, margin summary and withdrawable balance, for any 0x address.

MCP Server Security Scan: probes an MCP server (JSON-RPC initialize + tools/list) and applies a deterministic rule engine over its tools — embedded secrets, dangerous shell/exec/filesystem capabilities, prompt-injection surface, hidden unicode, permissive input schemas, and auth/TLS/CORS headers — returning a security_score + findings[]. The trust layer for the agent economy. Zero-LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.

Business-day count excluding weekends and full-day Public or Bank holidays; Optional and HalfDay observances remain business days.

Add business days while skipping weekends and full-day Public or Bank holidays; Optional and HalfDay observances are retained.

Holiday date check by country or subdivision — determine whether one ISO date is an official public holiday.

Official public holidays by country and year, with regional subdivisions, localized names and normalized dates.

Next official public holiday after a date for a supported country or regional subdivision.

AGENT DATASTORE — drop one of your wallet's collections and all its rows. Cheap on purpose: clean up after yourself and stay under quota.

Chess Daily tactics puzzle — solve a deterministic UTC daily position from a pinned CC0 Lichess subset using legal UCI moves.

Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic solvable UTC daily challenge for agent reasoning benchmarks.

Gridlock daily maze — find an optimal orthogonal route through a deterministic bounded obstacle grid.

Trivia Daily knowledge challenge — answer one deterministically selected and shuffled question from a curated local set.

Shortest Path daily graph — find the unique minimum-weight route in a deterministic directed or undirected graph.

Space-weather alerts — newest bounded NOAA SWPC geomagnetic and solar-flare messages with deterministic product-code kinds, complete-message digests, and freshness.

Line-level text diff

Significant earthquakes — search USGS seismic events above an explicit significance-score threshold, with magnitude and provenance but no danger or probability claim.

Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-index periods labeled observed, estimated, or predicted.

Recent earthquakes — search newest-first USGS seismic events by rolling time window and minimum magnitude, with revision, freshness, and provenance.

Current space-weather conditions — normalized NOAA SWPC Kp, solar wind, magnetic field, and X-ray flux used for solar-flare monitoring, with observation times and freshness.

Signed monthly x402 spend statement for one agent: totals, per-payment lines, Merkle root over the full ledger. The statement is itself an ML-DSA-65 attestation anchored to Hedera mainnet HCS. Wallet-bound. Free client-side renderer at /statement.html

China market daily brief — one call returns a synthesized snapshot of today's China: social pulse (Weibo/Baidu/Douyin top trends + finance buzz), market events (type distribution + top by mentions), critical/high risk alerts, hot industrial themes, and top sector rotation. English-labeled overview; full data lives in the dedicated endpoints. Query: ?top=5 (items per hot-search board, 1-10).