# Crypto Technicals & Web Utilities (x402)

> Pay-per-call HTTP services for agents: crypto trend regime, Donchian levels, ATR stops, volatility, funding, order book, correlation, single-symbol and portfolio backtests; web screenshots, page-to-Markdown, DNS, email verification, prices. USDC on Base or Solana via x402 v2.

- **Domain**: `vmi3089643.contaboserver.net`
- **Provider**: ETwithin (https://github.com/ETwithin/x402-crypto-technicals)
- **Kind**: paid_api
- **Category**: finance
- **Live-responds (last probe)**: False
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 75%
- **Payment protocol**: x402 · network `eip155:8453` · ≥ $0.01
- **Wallet**: `0xbe1c87b71ed7ed7c9b0855674b59706d85fd8aed`

## Skills
- **GET /v1/regime/:symbol** — Daily trend regime for a USDT pair: close vs SMA200/EMA100, prior 30-day high / 15-day low (Donchian), ATR14, 3xATR stop, breakout distance, and the deployed st
- **GET /v1/levels/:symbol** — Same as regime with custom parameters: entryLen, exitLen, trendLen, atrLen, slAtr (query string) ($0.003 per call)
- **GET /v1/scan** — Regime + signal table for BTC, ETH, SOL, XRP, BNB (or ?symbols=A,B,C up to 25 USDT pairs) ($0.01 per call)
- **GET /v1/funding/:symbol** — Perp futures context: mark/index, funding rate (and annualized), next funding, open interest (and USD), long/short account ratio ($0.002 per call)
- **GET /v1/volatility/:symbol** — Realized vol 20/60d, ATR%, 30-day range position, 90-day max drawdown, distance from SMA200 ($0.002 per call)
- **GET /v1/book/:symbol** — Order-book snapshot: spread bps, bid/ask notional (top 50), imbalance ($0.002 per call)
- **GET /v1/brief/:symbol** — One-paragraph technical brief for an LLM agent + the structured facts (regime, levels, volatility, futures) ($0.005 per call)
- **GET /v1/correlation** — Daily log-return correlation matrix, up to 15 pairs, 10-365 days ($0.01 per call)
- **POST /v1/ai/summarize** — LLM summary of text or a public URL: {text|url, maxWords?, style?} ($0.005 per call)
- **POST /v1/ai/extract** — Structured JSON extraction from text or URL by field list: {text|url, fields: {name: description}} ($0.008 per call)
- **POST /v1/ai/classify** — Classify text into your labels with confidence: {text, labels[]} ($0.003 per call)
- **POST /v1/ai/translate** — Translate text to a target language: {text, to, from?} ($0.005 per call)
- **POST /v1/ai/code-review** — Senior-engineer code review as ranked JSON findings with fixes: {code, language?, focus?} ($0.02 per call)
- **POST /v1/ai/market-commentary** — 120-180 word market commentary written strictly from this service's computed facts for a USDT pair: {symbol, audience?} ($0.01 per call)
- **POST /v1/portfolio** — Portfolio-level backtest (one equity pool, slots, risk sizing, BTC regime gate) across up to 10 pairs: {strategy, params?, universe?, maxPositions?, sizePct?, r
- **GET /v1/screenshot** — PNG screenshot of any public page (headless Chromium): ?url=&width=&fullPage= ($0.01 per call)
- **GET /v1/fetch** — Fetch a public page as clean Markdown with title/description (LLM-ready): ?url= ($0.005 per call)
- **GET /v1/dns/:domain** — A, AAAA, MX, NS, TXT, CNAME, SPF, DMARC for a domain ($0.002 per call)
- **GET /v1/email/verify** — Email verification: syntax, MX, SPF/DMARC, disposable and free-provider detection, score: ?email= ($0.002 per call)
- **GET /v1/price/:symbol** — Spot price + 24h stats for a Binance USDT pair ($0.001 per call)
- **POST /v1/backtest** — Single-symbol backtest of a named strategy over up to 4 years of daily/4h/1h bars: {symbol, strategy, params?, years?}. Strategies: donchian_trend, donchian_dai

## URLs
- Agent card: https://vmi3089643.contaboserver.net/.well-known/agent.json
- Page (HTML): https://agenstry.com/agents/vmi3089643.contaboserver.net
- Documentation: https://vmi3089643.contaboserver.net/v1/price/:symbol