Financial Analysis x402 offerings

Do the claimed backtest numbers follow from the trades? Send a TradingView "List of trades" CSV or a JSON trade list with the claimed metrics; get net profit, win rate, profit factor, drawdown and per-trade P&L recomputed, each claim marked MATCH or MISMATCH, and findings such as cost-free backtests. Deterministic, no market data. POST /v1/reconcile.

SOFR, Fed funds, and other benchmark interest-rate series as stable JSON. POST /v1/rate with an optional series selector and get the observations back as one JSON object. Deterministic per data vintage. Pay per request in USDC; no account, no API key.

Scored SEC EDGAR briefs for 14 large US companies (Apple, Microsoft, Nvidia, Amazon, JPMorgan, Pfizer and more): fundamentals, filing risk, insider activity, balance sheet, peer ranking, earnings quality, buybacks, 13F ownership and more, each a 0-100 score with SEC citations. POST /v1/brief with {vertical, entity_id}. Research signal, not investment advice.

South Korea's export statistics from Korea Customs Service: 10-day provisional totals for semiconductors, cars and 8 other major items, changes versus the prior month and year with item contributions, monthly trade by HS code and country, and a revision log. GET /v1/pulse, /v1/tenday, /v1/hs?hs=, or POST /v1/query in Korean or English. Pay per request in USDC; no API key.

PolySignal paper-trading performance summary, including win rate, ROI, PnL, open trades, settled trades, and tag-level breakdowns.

Historical price data with configurable timeframes (1H/6H/1D/1W/1M/ALL)

Real-time trade stream with market summaries (2hr rolling window, $500+ trades)

Cross-platform arbitrage detection between Polymarket and Kalshi: matched markets, price spreads, fee-adjusted EV. Coverage: liquid Polymarket markets in politics/geopolitics/elections/tech/economy/finance; low-volume long-tail, sports, culture, and weather are not included.

When to use: multi-leg European book → need net MTM + net Greeks (long/short via signed quantity). Shared rate/yield; each leg has underlying, strike, T, type, quantity, vol. Optional dollar Greeks. Prefer scenario endpoint for what-if P&L. USDC exact on Solana/Base.

When to use: what-if P&L under relative spot/vol shocks and calendar time decay on a European book. Returns base MTM+Greeks and per-scenario shocked MTM, MTM change, full Greeks. Single-option or multi-leg. USDC exact on Solana/Base.

Darrylbots paid early access: Drift, Spread, and the Martingale Illusion, Chapter 6

Five US large-cap stocks ranked by a daily AI research screen. Each name carries a written thesis, the most material risk, a confidence level and cited sources. Covers the S&P 500, refreshed each weekday after the US close. Ranked screen output, not financial advice. See More : https://screen.rateitall.co.za/stockdata/

Mid-market reference rates for one base currency against all published currencies, from the European Central Bank.

Mid-market reference rate for a base/quote currency pair, from the European Central Bank.

Scheme, type, brand, issuer bank and country, and payout settings for a card BIN.

Fat FIRE calculator. Same year-by-year compound-growth simulation as the standard FIRE calculator, framed for a higher, more lifestyle-preserving retirement spending target.

Keeping up with inflation calculator. Computes the pre-tax raise needed under two scenarios — keeping the same dollar amount saved, or maintaining the same savings rate — after inflation raises your …

Barista FIRE calculator. Simulates net worth growth through a full-time-saving phase and then a reduced-target phase funded partly by part-time/side income after quitting full-time work, until full f…

Loan payment calculator. Computes the fixed monthly payment for a standard amortizing loan and returns the full month-by-month principal/interest/balance schedule — exact amortization math an LLM can…

House hacking calculator. Nets rental income from other units/rooms against your mortgage payment and expenses, then adds back the equity you build via principal paydown and the market rent you avoid…

Windfall impact on FIRE timeline calculator. Runs the FIRE net-worth simulation twice — with and without a one-time lump sum added at a given year — and reports how many years the windfall shaves off…

Upwork freelancer fee calculator. Applies a documented tiered marginal service-fee schedule (20%/10%/5% at $500/$10,000 cumulative per-client lifetime billing thresholds) to compute take-home pay on …

Cap rate calculator for real estate investing. Runs a full multi-year deal analysis (per-category rent/expense growth, a sale scenario, IRR) and headlines the capitalization rate: first-year NOI divi…

Portfolio rebalancing calculator. Given current holdings and target allocation percentages, computes the dollar gap per asset and the monthly buy/sell inflow needed to reach the target allocation ove…