Every listed perpetual futures market in one call: mark, oracle and mid price, 24-hour change, funding (hourly, 8-hour, annualized), open interest in coins and dollars, 24-hour notional volume and max leverage, sortable by volume, open interest, funding or change. Use it as the one-shot market map before drilling into a single symbol.

What Solana tokens are being pushed right now: a public DEX pair index's top boosted tokens (paid promotion, ranked by boost amount - a signal of marketing spend, not quality) and the latest token profiles (fresh listings with a filled-in profile), both filtered to Solana. Each row carries the mint, the index's token page URL, description snippet and links. Feed the mints into sol-token-safety to separate the promoted from the sound. Keyless; two small reads in parallel.

Google's native generateContent wire on the nano tier. Send Gemini's own request shape (contents, systemInstruction, generationConfig, function declarations) and get Gemini's own response shape (candidates, usageMetadata) back. Point a Google GenAI SDK at this gateway and pay per request with USDC, no account. Also answers the Google-shaped path /v1beta/models/<model>:generateContent.

Markdown to HTML and back - a round-trip conversion that proves fidelity and gives you both formats from one input. Markdown to HTML round-trip skill pack: one x402 payment runs 3 underlying tools (markdown-to-html, html-to-markdown, text-diff); partial-success per step.

Statistical analysis suite: descriptive statistics, correlation analysis, and outlier detection on a single dataset. Number crunch skill pack: one x402 payment runs 3 underlying tools (stats-summary, correlation, outliers); partial-success per step.

Snapshot of every market on ONE builder-deployed perp dex (HIP-3): mark and oracle price, 24h change, hourly funding (plus 8h and annualized), open interest in units and USD, 24h notional volume, impact premium, max leverage, growth mode, isolated-only and margin mode, deployer fee scale, and the dex's collateral token. Coins carry the dex prefix (xyz:TSLA). Sort by volume, openInterest, funding, change or coin; limit caps the list (max 500). Keyless public data.

Decode and verify a JWT in one pass - see the payload and check the signature. JWT toolkit skill pack: one x402 payment runs 3 underlying tools (jwt-decode, jwt-verify, jwt-sign); partial-success per step.

Solve a bond's yield to maturity from its market price - the annual rate that present-values the coupons plus face to that price. Bracketed bisection root-find.

RSI, MACD, EMA 20/50/200, SMA 20/50, Bollinger bands, ATR and VWAP computed deterministically from live candles for one coin and interval, with the latest series points and a plain-language summary. Use it when an agent needs standard technical indicators without fetching candles and computing them itself.

Protocols ranked by fees paid by users or by revenue kept, with 24h, 7d, 30d, 1y and all-time totals, change, category and chains, and chain-level gas fees on request. Use it when an agent is comparing protocols on real usage rather than TVL or valuing a token against the fees its protocol earns.

Is this address a contract, and what code does it hold? Returns isContract, deployed bytecode size, and the keccak-256 hash of the bytecode (stable fingerprint for comparing deployments) on Ethereum, Base, Polygon, Arbitrum, or Optimism. Keyless multi-endpoint failover.

Live yield opportunities across DeFi, filterable by chain, protocol, token symbol, stablecoin-only, minimum TVL and minimum APY: pool identity, TVL in dollars, total APY split into base and reward, 1-day, 7-day and 30-day APY change, impermanent-loss risk and exposure type. Use it to find, compare or monitor where a given asset earns the most right now.

Parse CSV (quoted fields supported) into a JSON array of objects, using the first row as headers (header=false for arrays).

Compute future value of a principal under compound interest. Returns future value, total interest earned, and the effective annual rate (APY) given the compounding frequency. Matches Excel's FV(rate, nper, 0, -principal) and the classic (1+r/n)^(nt) textbook formula.

Convert CSV into a GitHub-flavored Markdown table (first row is the header).

One DeFi protocol in full: TVL rank, TVL per chain, recent change, market cap to TVL, token, website, audits and parent, with name suggestions when the slug is unknown. Use it when an agent is researching a specific protocol and needs its size, footprint and audit status in one answer.

Classify an IP address: version, public/private/loopback/link-local, integer form, and reverse-DNS (PTR) lookup.

Top keywords and two-word phrases by frequency (stopwords removed). Cheap, deterministic signal for routing, tagging, and dedup.

Read on-chain state of a Uniswap V3 pool: token0/token1 addresses + decimals, fee tier, current sqrtPriceX96, tick, in-range liquidity, and the decoded human-readable spot price (token1 per token0). One $0.002 call replaces ~6 RPC roundtrips on the caller's side.

Resolve any DNS record type for a host: A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, SRV, PTR. Returns the records plus a count. Built on Node's native resolver - no external API.