Arc Wallet Intel service

Operations Record grouper: Group JSON records by a selected field. Tailored for operations workflows.

Solve the 24 Game puzzle — find expressions that evaluate to 24.

Chain metadata registry. 🆓 5 free trial calls per signed wallet

Token price from GeckoTerminal. 🆓 5 free trial calls per signed wallet

Calculate the binomial coefficient C(n,k) — the number of ways to choose k items from n. Provide n and k (both >=0).

Daily reference exchange rates from the European Central Bank (via Frankfurter). 30+ major currencies. Pass base = 3-letter ISO 4217 currency (default USD), optional symbols = comma-separated target codes (default = all available), optional date = YYYY-MM-DD for historical rates (history back to 1999, business days only; omit for latest), optional amount to convert (default 1). Returns base, date, amount, and a map of currency code → rate.

APEX Runner: Grid Health Signal

Crypto market sentiment: Fear-and-Greed index (0-100) with classification from alternative.me.

Holiday-aware business-day calculator for 200+ countries. Three modes: pass start + addDays (signed integer) to shift a date by N business days; pass start + end to count business days between two dates (exclusive of start, inclusive of end); pass start alone to check one date (is it a business day, which holiday, next/previous business day). Query: country (ISO 3166-1 alpha-2), start (YYYY-MM-DD), optional region (subdivision code), addDays XOR end, optional weekend (comma-separated days, default sat,sun — e.g. fri,sat for the Gulf), optional types (holiday types treated as closures, default public,bank). Skipped holidays are itemized in the response. Use for payment terms, SLA deadlines, and delivery-date math.

Heuristic on-chain labels for any address - contract vs EOA, activity tier, balance band and transaction count - on EVM chains. wallet label, address classification, eoa or contract, wallet activity, address profile, wallet tag, address label, onchain identity, smart money Accepts payment on Base or Solana — either network works.

Faction brief generator: Create a playable faction with a public aim, hidden need, and rival.

Top DeFi yield pools sorted by APY (TVL > $1M)

EU market brief — 4 European equity indices (price + % change), the ECB's daily reference rates for USD, GBP, CHF, JPY and CNY, and the latest ECB press releases, speeches and interviews. No inputs, one call.

All WNBA teams with ID, city, abbreviation, and conference. Use team IDs to query schedules and standings.

All active WNBA players for the current season — name, position, jersey number, and team.

Token transfer history for any wallet address on Base or Ethereum — inbound/outbound transfers with token, amount, direction, and timestamp as JSON. Powered by Dune Analytics. Use for: wallet activity tracking, onchain transaction history, USDC transfer audit, address monitoring. $0.003 USDC per call.

Last N blocks base fee + priority fee. 🆓 5 free trial calls per signed wallet

Perpetual funding rates. 🆓 5 free trial calls per signed wallet

The touch for one Polymarket outcome token: best bid, best ask, midpoint, spread in absolute and relative terms, and whether the book is one-sided. Use x402-poly-clob when you need the full book rather than the top of it.