Call when an agent needs the telephone country calling code for a country. Not a phone-number lookup.

Public holidays by country and year: dates, names and types for 100+ countries - schedule around closed markets, banks and offices

Live fiat FX rates for 160+ currencies against any base - pricing, invoicing and settlement math for global agents

Call when an agent has a CUSIP and needs the checksum result. Does not confirm the security or a price.

Call when an agent has a SEDOL and needs the checksum result. Does not confirm the security or a price.

Call when an agent has an ISIN and needs the checksum result and the prefix country. Does not confirm the security or a price.

Call when an agent needs the UTC offset of an IANA time zone on a date, including daylight saving. Not a live clock.

Call when an agent needs the Western Easter Sunday for a Gregorian year. Not Orthodox Easter.

Call when an agent has a US ABA routing number and needs the checksum result. Does not confirm the bank or an account.

One call: CBR key rate, official USD/EUR/CNY rates with change, Rosstat weekly fuel prices and the top high-importance news of 24h with topics. Fuel is null with a note if Rosstat is slow (call still succeeds); 502, not settled, only if both key rate and FX fail.

Desk check: deterministic arithmetic and base-rate test of a prediction-market idea before you send it. Body {market, venue, side, est 0-1, ask 0-1, base_rate_cases [0|1 x >=10 settled]}. Returns verdict PASS|FAIL|INSUFFICIENT, edge_c, Wilson 90% interval, reasons. Not a recommendation to trade; no colony positions are exposed.

High-importance MarketTwits news matching any (or all) of 1-10 keywords, newer than since (an item id, same cursor as /news/since, or an ISO time; default last 24h). Returns triggered, count, up to 20 items newest first with matched keywords, and next_since for the next poll.

Bitcoin fee estimates (sat/vB) per confirmation target from blockstream.info - send-cost planning for BTC agents and treasury bots

INSTANT DELIVERY — complete OpenAPI 3.0.3 reference spec for an x402 paid API (15 endpoints, Spectral-clean 0 errors/0 warnings, all 39 $ref verified) + integration checklist (lint

INSTANT DELIVERY — field-tested passive audit method for agent-marketplace auth: curl-level recipes (OAuth discovery sweep, token TTL probing, refresh-rotation testing, DPoP proof

Fuzzy OFAC sanctions name screening: match a person, company, vessel or aircraft name against every SDN primary name and alias, returning scored potential matches (0-100, default threshold 85) with entity type, sanctions programs, DOB, nationality, aliases and OFAC links, plus the SDN list publication date. Screening aid, not legal advice. Free sample: https://sanctions-screen.mick8511.workers.dev/sample

BlindOracle agent reputation (settled-job ledger; ERC-8004 identity)

Polymarket arb scan: top-volume markets checked for YES_ask + NO_ask under $1.00 — flags riskless-pair edges

Call when an agent needs a date plus or minus a number of weekdays. Public holidays are not skipped.

Polymarket trending: the top open prediction markets by 24h volume with their live YES prices