Payment receipt and settlement proof for x402 and agent payments, by Liquid Logic X. Input: a Base USDC tx hash (optional memo). Output: JSON proof recorded onchain on Arc mainnet (proofId, from/to/amount, Arc tx, refId) plus a public verify link anyone can check. $0.02 USDC on Base, charged only when a proof is returned. Your paying wallet must be the tx sender or recipient. Liquid Logic X also records proofs on Tempo mainnet. Site: https://liquidlogicx.com

Coinbase price premium vs composite spot median (OKX + Kraken + Binance). premium_pct = (coinbase / composite_median − 1) × 100. Positive = US/institutional demand skew; negative = global selling pressure. Covers BTC/ETH/SOL/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/BCH/ATOM/NEAR (assets listed on Coinbase). Point-in-time only — no historical baseline stored. $0.02 USDC per call via x402.

Buy a gift card from ~550 US brands (Amazon, Target, DoorDash, Uber ...) and more countries; the card is issued to the agent's owner (registered STB agent key with gift cards turned on required). This call prices one card for a $0.02 USDC fee on Base and returns the exact USDC total, a pay_url and a claim token. Find product ids and amounts with GET /x402/giftcards/catalog/?country=USA.

Cross-venue funding arbitrage signal from real-time 8h-equivalent funding rates on up to 6 venues (Binance, OKX, Bybit, KuCoin, Bitget, Hyperliquid). Returns the gross and net-of-fees spread between the best short venue and best long venue (gross_spread_bps, net_spread_bps after a 20 bps round-trip fee estimate), spread_8h_normalized, venues_count, per-venue rates with funding_interval_hours, annualized_pct, and an actionability label. All 17 assets. $0.02 USDC via x402.

Material-change feed for up to 5 crypto assets. Pass the cursor from your last call and receive ONLY what changed since: funding sign or band, funding trend, open-interest regime, alert set, and source stale/recovered. Returns an explicit no-change packet rather than pretending, plus per-asset freshness and a next-poll time derived from the real 5-minute collection cadence. Market data, not advice. $0.02 USDC via x402.

Three fiscal years of income statement, balance sheet and cash flow lines in one standard layout, scaled to revenue, with per-year slope. Complete sheet free: /line-item-trajectory/sample/AMD

Use when an agent needs an x402 seller rank or dossier. Returns Seller dossier by hostname (?host=api.example.com): that seller's x402 routes with 30-day calls and paying wallets, price ladder, networks and market share; without ?host — the top sellers by paying wallets.

BNB (BNB) price direction forecast. Kronos-base (60-path Monte-Carlo) ML model, run hourly: served while a recent run exists, otherwise the composite heuristic; model_type says which. Per-asset served accuracy is scored live at /api/stats (beta_accuracy.per_asset), not a backtest. Pay-per-call via x402 on Base USDC.

Print and mail physical US letters (PDF, HTML, Markdown, DOCX, or image) and postcards via USPS, paid in USDC — with certified/registered proof options and standalone address verification at POST /v1/verify. Integration flow: POST /v1/documents to upload, POST /v1/quotes to lock a fixed USDC price for a recipient, then pay the returned per-quote x402 URL to create and mail the piece. Price is fixed per quote.

Fiat currency converter and international pricing calculator. Perform instant conversions for any base amount between 30+ fiat currencies with official real-time ECB rates. Returns the exact converted sum, forward exchange rate, and the inverse exchange rate for clear cross-currency financial auditing.

Stock screener: filter by fundamental criteria. Screener tickers are not guaranteed on every downstream endpoint — before paid calls, check the target endpoint's /tickers list (e.g. /api/prices/snapshot/tickers, /api/financial-metrics/snapshot/tickers). Upstream invalid/unsupported tickers return 400/404 and are still charged.

AgentOracle: use when choosing a Base stablecoin for payment, treasury, or settlement. Ranks canonical USDC, USDT, and DAI using peg deviation, liquidity, freshness, and conservative missing-data penalties.

Hydrological risk and flood forecasting database. Access real-time and projected river discharge rates in cubic meters per second (m³/s) for any location worldwide. Includes hydrological safety thresholds, risk index projections, and climate trend intelligence for maritime logistics, insurance modeling, and disaster prevention.

Current average U.S. retail price of electricity, in cents per kilowatt-hour (cents/kWh) — e.g. "what's the electricity price right now". Reflects the latest monthly data (not real-time), averaged across all sectors combined (not sector-specific), sourced from the U.S. Energy Information Administration (EIA). Optional 'state' param (2-letter code) returns that state's average instead of the national figure.

Returns objective on-chain safety flags and live liquidity depth for any token or contract on Base, sourced and timestamped, with no advisory output.

Extract webpage metadata for agent research and URL triage: title, description, canonical URL, Open Graph, and Twitter metadata from a public page.

Revisión de seguridad de un paquete de ficheros (Python, web, JSON) sin ejecutar nada: importaciones y llamadas prohibidas, escritura, red y credenciales. Un tipo de fichero que el gate no sabe leer se declara como no verificable, no como aprobado.

grov: Facebook Followers. ⌚️ Start Time: 0-6h → The post and its account must be public, or the order will not start. 🔗 Link Example: https://www.facebook.com/grov

Checks a website imprint (Impressum, legal notice) in caller-supplied HTML against the eight groups of mandatory disclosures in § 5 DDG, the German imprint statute: name/address/representation, contact incl. e-mail, supervisory authority, commercial register, professional details, VAT ID, wind-up, audiovisual services. Conditional duties the HTML cannot decide come back as unknown, never as a defect. Finding with citation, not legal advice.

Checks a German invoice (Rechnung) for the ten mandatory details of § 14 (4) UStG, the German VAT act, from caller-supplied invoice text. If a total up to 250 EUR is detectable, the small-amount simplifications (Kleinbetragsrechnung, § 33 UStDV) apply and dispensable details come back as not_applicable, not as a defect. Also states whether a structured e-invoice format (XRechnung/CII, UBL, ZUGFeRD) is present: a format finding only, no claim about any duty or deadline. No tax advice.