x402 developer tool. Use to find out whether an x402 seller is listed in Coinbase CDP Bazaar and, if not, why. GET with required url (host or https URL). Reads CDP discovery and the host's /.well-known/x402, then sends one unpaid request per route; never pays. Returns JSON: verdict, per-route indexed status and networks (Base, Solana), and fail/warn findings each with a fix line. https only; private targets blocked. Errors are not charged.

Web page to structured fields. Use when you need specific data from a page, not its full text. GET with required url, or POST JSON {url or html, fields}. Returns JSON: title, description, canonical, language, links, images, headings, jsonLd, textSample, and with fields (map of name to CSS selector, max 20) the matched values with fieldErrors. Caps: 200KB HTML, 8s; private targets blocked. If no requested field matches it returns 422 and is not charged. Errors are not charged.

Web page to text. Use when you need to read a public web page as clean text or markdown for an LLM. Call GET with required url (absolute http/https). Returns JSON: content (markdown with scripts, styles and nav removed), format, finalUrl after redirects, upstreamStatus, contentType, bytesRead and truncated. Caps: 200KB, 8s, 3 redirects; private and localhost targets are blocked. For raw status, headers and body use /api/http. Errors are not charged.

Crypto derivatives data. Use when you need current perpetual futures funding rates for BTC, ETH and SOL. Call GET with no parameters. Returns JSON per asset from OKX USDT swaps: instId, fundingRate, fundingTime and a rule-based crowding hint {side: longs/shorts/neutral, level: quiet/mild/elevated/extreme} with the thresholds used. OKX public data only. The hint is not a forecast or advice. Errors are not charged.

Blockchain gas fees. Use before sending a transaction on Base or Ethereum to choose fees and timing. Call GET with no parameters. Returns JSON per network: baseFeeGwei, priorityFeeGwei (p50, with p10/p90), suggestedMaxFeeGwei (2x base + priority), timingHint (cheap/normal/expensive vs the last 20 blocks) and simpleTransfer cost in ETH and USD, plus ethUsd. From eth_feeHistory with eth_gasPrice fallback. Descriptive, not a forecast. Errors are not charged.

HTTP proxy. Use when you need to call a public URL or API and get the raw response. GET with required url (optional method, headers as JSON string), or POST a JSON body {url, method, headers, body}. Methods: GET, POST, HEAD, PUT, PATCH, DELETE. Returns JSON: status, filtered headers, body (text or base64), contentType, finalUrl, elapsedMs. Caps: 384KB response, 64KB body, 12s, 3 redirects; private targets blocked. Upstream 4xx/5xx come back as data (charged); proxy errors are not.

PDF to text. Use when you need the text of a public PDF document. GET with required url (http/https, max 10MB) and optional pages (1-50, default 50). Returns JSON: pages [{page, text}], totalPages, pagesReturned, truncated, bytes, finalUrl and meta (title, author, subject, creator, producer, creationDate). Reads the PDF text layer with pdf.js; no OCR, so scanned image-only PDFs return 422. Max 100K chars. Not a PDF, encrypted, too large or failed downloads are not charged.

Crypto wallet analysis. Use when you need the token holdings and USD value of one EVM address. Call GET with required address=0x... (40 hex). Reads Base and Ethereum via RPC: native ETH, USDC, WETH, WBTC/cbBTC, DAI. Returns JSON: holdings (balance, priceUsd, valueUsd, weight), totals (valueUsd, stablecoinShare, max asset/chain weight), risk {score 0-100, band} and rule-based rebalance suggestions. Read-only; not advice. Invalid addresses return 400 and are not charged.

Crypto market data. Use when you need current BTC, ETH and SOL spot prices in USD. Call GET with no parameters. Returns JSON: assets.BTC/ETH/SOL with priceUsd, change24hPct and momentum (bullish/bearish/neutral), plus overall momentum, sentiment (risk-on/risk-off/neutral), signal (buy/sell/hold) and avgChange24hPct, and asOf. Prices from Coinbase Exchange, CoinGecko fallback (source field). Labels are fixed rules on 24h change, not advice. Errors are not charged.

Web page screenshot. Use when you need to see how a public page renders. GET with required url; optional width (320-1920), height (240-2000), fullPage=true (clipped at 4000px), format png/jpeg, delayMs (0-3000). Renders in headless Chromium and returns JSON: imageBase64, mimeType, width, height, bytes, finalUrl, pageStatus, title and blockedRequests. Every sub-request is checked; private targets blocked. Over the 25s budget returns 504. Errors are not charged.

Web search with page contents. Use when you need current information from the web with sources to cite. GET with required q (max 300 chars) and optional n (1-5 pages, default 3). Searches Google results via Serper, then fetches each top result as clean markdown. Returns JSON: results with rank, url, title, snippet, per-page ok/status and content (up to 12K chars each), plus resultCount and fetchedOk. Billed when at least one result returns; zero results or provider errors are not charged.

Crypto technical analysis. Use when you need indicators for BTC, ETH and SOL rather than just prices. Call GET with no parameters. Returns JSON per asset: rsi14, macd {macd, signal, histogram} (null when there are too few candles), bollinger {upper, middle, lower, period}, lastClose and OKX perpetual funding {fundingRate, fundingTime}. Computed from CoinGecko OHLC closes (Coinbase candles fallback); methodology included. Descriptive only, not advice. Errors are not charged.

x402 developer tool. Use before paying an unknown x402 endpoint, or to debug your own. GET with required url (optional method GET/POST, body JSON for POST probes). Sends one unpaid request and never pays. Returns JSON: httpStatus, isX402, x402Version, decoded accepts (network, asset label, amount in USD, payTo and whether payTo is an EOA or contract), discovery metadata presence, and pass/warn/fail checks with a summary. Private targets are blocked. Errors are not charged.

DeFi yields. Use when you need to compare current DeFi pool yields, especially stablecoin or single-asset pools. Call GET with no parameters. Returns JSON: up to 25 pools ranked by preference tier then APY, each with project, chain, symbol, tvlUsd, apy, apyBase, apyReward, apyMean30d, stablecoin, exposure, ilRisk and poolId. Filters: TVL >= $10M, non-outlier APY. Figures passed through from DefiLlama at fetch time, not advice. Errors are not charged.