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Raw AMM pool state for a pair on Polygon PoS: v2 reserves and v3 concentrated liquidity across QuickSwap, SushiSwap and Uniswap v3. Returns pools[] with venue, surface, feeBps, reserveA, reserveB, price and tvlUsd at a stated blockNumber. Requires ?pair=SYM/SYM (e.g. WMATIC/USDC). Errors: 400 bad_pair, 404 no_pools, 502 upstream_read_failed. For USD depth already computed use /liquidity. This is the underlying numbers. Chain-pinned; bare /reserves = BSC.

Spot token price in USD on Polygon PoS, read from QuickSwap, SushiSwap and Uniswap v3 pools at call time. Returns priceUsd, the routed pair, backing liquidityUsd, confidence and blockNumber. Requires ?symbol=TICKER (e.g. WMATIC) or ?token=0xADDRESS. Errors: 400 missing_symbol|unknown_token, 404 no_reliable_price when pools are too thin, 502 upstream_read_failed. Depth is /liquidity; a size-aware quote is /slippage. Chain-pinned; bare /price = BSC.

The prosecution-history timeline for one patent application — pass the `{application}` number plus `?limit=` (max 200), newest first. Each event carries its date, USPTO event code, and description (office actions, allowance, grant, abandonment, etc.) — the momentum/risk read on where an application sits. Source: USPTO. From x402stock, a market & economic data API (x402, USDC).

US Treasury par yield curve, every constant maturity from 1 month to 30 years for a published business day. Returns curve[] with tenor, months and percent, spreads (2s10s, 3m10y, 5s30s) and an explicit inversion flag - the real question is whether the curve is inverted, not what fourteen numbers are. A tenor Treasury did not publish is null, never zero. Pass ?latest=1 OR ?date=YYYY-MM-DD, not both. Errors: 400 conflicting_params|bad_latest|bad_date, 404 no_curve with the available range.

South African SA ID number validation: Structural validation of a South African identity number with safe decode: Luhn check digit, birth date, gender and citizenship segments (citizen or permanent resident). The structural step in KYC, KYB and customer onboarding or due diligence workflows: derive date of birth, age, gender and citizenship without storing the identity. Stateless, never stored or logged (POPIA-conscious by construction).

Deterministic schema.org LocalBusiness JSON-LD generator with validation warnings. POST JSON {name, businessType, telephone, address fields, openingHours, ...}; returns {jsonld, scriptTag, warnings}. $0.05 per call.

FDA recall and enforcement records across drug, device and food, normalised into one shape with classification, reason, distribution scope and firm. Queryable by firm, product, classification and date. One product type returning nothing never fails the call — the three openFDA endpoints are independent and a gap in one is not a gap in the others.

Steam reviews scored by how long the reviewer actually played. A negative review from someone with 400 hours means something very different to one from a player with 12 minutes, and the headline percentage treats them the same. Also separates the lifetime rating from the recent one, which is how you spot a game that has just broken.

Complete ERC-20 portfolio for a Base address — every non-zero token with balance, metadata and live USD value, plus a total. Token discovery via CDP Data API (Coinbase) with Alchemy fallback; USD from DexScreener.

China Macro Weekly #3, 2026-08-19: The Credit Went Fiscal, and the Bond Market Priced It. China Macro Weekly for 2026-08-19: July new yuan loans contracted (-¥340bn) while government bonds carried the entire ¥1.41tn TSF flow, so the credit impulse is fiscal, not monetary. The PBoC ran zero-volume 7-day reverse repos all six sessions and capped overnight operations instead; the 10-year CGB broke 1.695% and fell every session to 1.6831%. Covers the NBS July activity misses, 70-city house prices with both signs, the CNY fixing's 5.1-pip week, and the 2026-08-20 LPR setup. One payment returns the full text, and the creator is paid as it is used.

Macro Regime Weekly #3, 2026-08-17: The Hike Bid Broke, and the Long End Refused to Confirm It. As of 2026-08-17. September FOMC hike odds fell from roughly 52% to roughly 30% this week, and July CPI was not what killed them: retail sales at -0.6% MoM was. Core CPI 2.5% YoY (slowest since March 2021), PPI core accelerating to +0.4% MoM, and the long end refusing to confirm any of it, with the 30-year unchanged at 5.25 and 2s10s steepening 4bp. Plus the Brent round trip back to ~$89, the -911k benchmark-revision contamination trap before 08-28, and four corrections to Weekly #2. One payment returns the full text, and the creator is paid as it is used.

API call to countrylayer

Query-parameter alias for Scry Wallet Full Context Pro. Pass `address` to receive a one-call context bundle across wallet forensics, transfer tape, launch-window relationships, identity quarantine, and coverage. No API keys, no subscriptions; x402 exact payment per request.

The current valuation of one private, pre-IPO company by symbol — e.g. ANTHROPIC, OPENAI, SPACEX, ANDURIL, NEURALINK, KALSHI, POLYMARKET — via its PreStocks Solana token, backed 1:1 by SPV exposure. Returns the SPV mark price and valuation, the on-chain token price and implied valuation, the token's premium/discount, supply, and contract. List them all at /api/v1/private-stocks. From x402stock

The patent family for one application — pass the `{application}` number. Returns parent and child applications with their numbers, filing dates, status, and the continuity relationship (continuation, divisional, national-stage entry, etc.). Maps how deep a company's protection on an invention runs. Source: USPTO. From x402stock, a market & economic data API (x402, USDC).

Pull a key market-signal macro series from the Federal Reserve (FRED) by slug: vix, yield-curve-10y-2y, yield-curve-10y-3m, high-yield-spread, ig-spread, breakeven-10y, real-yield-10y, jobless-claims, consumer-sentiment, mortgage-30y, financial-conditions, recession-probability. Each returns the latest value, prior, change, year-over-year, and recent history. No ticker needed. From x402stock

Initial beneficial-ownership holdings parsed from SEC Form 3 filings, the first report an insider files on becoming a director, officer, or 10% holder. Each holding carries the security, shares owned, direct or indirect ownership, and derivative terms. Complements Form 4 transactions. ?limit= filings (default 5). Sourced from SEC EDGAR. From x402stock, a market & economic data API (x402, USDC).

Daily short-sale volume for a US-listed stock: total volume, short volume, exempt and non-exempt short volume, the short-volume ratio, and a per-venue breakdown (NYSE, Nasdaq, ADF), most recent day first. A higher-frequency read on shorting pressure than bi-weekly short interest. Tune with `?limit=` (default 20). From x402stock, a market & economic data API (x402, USDC).

The exchange-reported short-interest history for a US-listed stock: total shares sold short, average daily volume, and days-to-cover for each bi-weekly FINRA settlement date, most recent first. A core short-squeeze and bearish-positioning signal. Tune how many settlements to return with `?limit=` (default 12). From x402stock, a market & economic data API (x402, USDC).

Independent quality layer for x402 agent-payments: liveness, protocol correctness, spam, payTo integrity, longitudinal reliability.

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Every XBRL financial fact a company has reported to the SEC, each collapsed to its latest value: tag, taxonomy, label, unit, the figure, and the period/form/filing it came from. Filter with `?taxonomy=us-gaap|dei`, `?search=revenue`, and `?limit=`. Discover which metrics exist for a ticker before drilling into the full series via /concept. Sourced from SEC EDGAR. From x402stock

All markets in one Hyperliquid HIP-3 builder DEX (pass the dex id, e.g. `xyz`): 24/7 synthetic mark & oracle price, funding rate + APR, open interest, and day volume each. Covers equity perps (NVDA, TSLA), commodities (GOLD, BRENTOIL, COPPER), FX, and index perps. Oracle-priced proxies carrying funding — not the underlying's official last trade. List DEXs at /api/v1/hip3/dexs. From x402stock

Historical OHLCV candles for one perpetual-futures market at the requested interval (1m, 5m, 15m, 1h, 4h, 1d, 1w, and more) over a time window. Pass the coin in the path (e.g. BTC) and tune with `?interval=` (default 1h), `?lookback=` candles (default 200, max 5000), or an explicit `?start=`/`?end=` epoch-ms range. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock