Real-time gas price oracle for agents timing a transaction: slow/standard/fast tiers with trend analysis for any supported EVM chain. Category: infra.

One merged call instead of two: latest-version metadata from the official npm registry plus last-week download count from api.npmjs.org (both live). Query: ?pkg=react (scoped names like @scope/name accepted). Returns version, license, deps_count + dependency names, engines, weekly_downloads. No personal maintainer data. 1h cache.

Use when the agent speaks MCP. JSON-RPC endpoint exposing 90 tools (opportunity scan, signals, momentum, pressure, regime, pre-trade check, token flow and token risk, stock premium, candles, datasets, news, $1 decision, SEC data, technicals, funding, gas, smart money, perps, rates, Europe, backtest). Discovery and 3 sample tools are free; each other tools/call costs its HTTP route price (from $0.001).

Barker's stablecoin market snapshot: total market cap, yield-bearing cap, asset distribution, chain distribution. Use for 'stablecoin market cap', 'USDT market share', '稳定币市场份额'. share_pct fields are decimals (0.425 = 42.5%).

Market regime classifier for trading agents — is the tape risk-on or risk-off right now? Returns a regime verdict per book (S&P 500, Nasdaq-100, macro, crypto): trade, be selective, or stand down — with the market-state mode, which sectors are green, and the top-down permission ladder (index → sector → name) saying whether individual names are enterable at all. Refreshed ~5 min in market hours, timestamped. Research, not advice.

Live Bitcoin BTC-USD market-regime and risk evidence for autonomous AI agents, algorithmic systems, portfolio monitors, and quantitative workflows. Returns current market state and phase, coherence, commitment, pressure, derived directional bias, alert label, completion readiness, transition strength, false-breakout risk, and recent state-change events. Experimental analytics only; not financial advice.

Polymarket movers RIGHT NOW: the 20 biggest 24h odds moves across active prediction markets, ranked by move size, each with direction, the raw 1d and 7d change, live odds, best bid/ask, spread, volume, liquidity and the event link. A tradability floor keeps dead-market swings out. Flat JSON, refreshed every 5 minutes. Polymarket odds movers, biggest prediction-market moves, event probability shifts, market momentum. $0.002 per call.

Outcome labels for one pump.fun memecoin: rugged, graduated, when, peak SOL ($0.001). Use when you grade your own rug or graduation calls or backtest a signal on pump.fun memecoins and need outcome labels you did not write yourself, by a fixed public rule; for a live pre-trade rug check use GET /v1/check/mint ($0.005).

LinkedIn profile enrichment API for one B2B lead

Deep uptime & health report from one socket-level HEAD probe: DNS/TCP/TLS/TTFB timing waterfall, TLS certificate (issuer, expiry countdown, trust status), HTTP/2 support via ALPN, server IP + hosting location, CDN detection, redirect chain, caching + security response headers, compression, server clock skew. On failure, says exactly which phase died. Everything a monitor needs in one deterministic call — no page download.

Fetch all user positions with filtering and pagination

Base USDC lending APY. Live USDC lending yield on Base, read on-chain: Aave V3 USDC vs Morpho Gauntlet USDC Prime. Size-aware pick for parking idle USDC: USD per year, days to break even vs Base gas, skip if entry is uneconomic. Conservative two venues only. No leverage, looping, memecoins, or perps.

Exact math for agents — the arithmetic LLMs get plausibly wrong. Evaluates an expression at 50-significant-digit precision (BigNumber): big-integer multiplication, high-precision division, roots, logs, factorials, unit conversions (12 inch to cm). GET ?expr=…, result returned as an exact string. Deterministic, no AI, never executed as code.

Generates PNG or SVG QR codes from text, URLs, vCards, WiFi strings, and plain text with configurable size, margin, colors, and error correction. Use it as a QR generator API, create-QR-code endpoint, text-to-QR, or link QR generator.

Cheapest liveness ping: ONE request to any public URL — is anything answering, and how fast? Returns up/down, HTTP status, and latency in ms. Any HTTP response below 500 counts as up; redirects are reported, not followed. High-frequency monitoring loops belong here; step up to /api/uptime for redirect following and headers, /api/uptime/report for the full timing/TLS/CDN report.

Get booking options for a specific flight. Requires a departure_token from a search result.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Everything relevant to deciding whether to exit a charter's branches right now, bundled into one call.

DNS and domain intelligence: A/AAAA/CNAME, MX (sorted), NS, TXT, SOA records plus email security posture — SPF record, DMARC policy, and DKIM selector probing. For deliverability, security, and research agents. ?domain=example.com

WCAG accessibility check (static analysis): findings mapped to WCAG success criteria with A/AA/AAA levels — alt text, page title, lang, form labels, heading structure, table headers, link purpose, accessible names, duplicate IDs, ARIA role validity, zoom blocking, meta refresh, skip links. Filter with ?level=A|AA|AAA. Honestly reports what static analysis cannot check (contrast, focus, keyboard).

IP geolocation: country, region, city, coordinates, and timezone for any IPv4 or IPv6 address. Fast in-memory lookup for analytics, fraud, and personalization agents.