Walk-forward replay of the live multi-timeframe strategy over recent 1m history: win-rate and average forward return per BUY/SELL signal. Lets an agent measure recent edge before subscribing to the live signal stream (USDC on Base). Free preview: GET /signals/preview

Add N NZ working days to a date (e.g. OIA 20 working-day deadline)

Validate an NZ bank account number check digit (IRD algorithms A-G/X), normalise BB-bbbb-AAAAAAA-SSS and identify the bank code

Count NZ working days between two dates inclusive (weekends, public holidays, optional statutory Christmas shutdown presets oia|lgoima|building_act|rta)

Use this to check a freight broker before you accept a load or extend credit: whether it holds active broker authority, its broker dockets and how current each status is, its bond (BMC-84/85) continuity and lapses, its authority history (grants, revocations, suspensions, reinstatements) and the identity linkage screen. Give an MC number or a USDOT number. A record, not a recommendation. Billed whenever the broker resolves, including when it holds no broker authority.

Street (parallel-market) rate — USD-NGN or USD-GHS. Street rate for USD-NGN or USD-GHS: the median VWAP of Bybit's public USDT/fiat P2P order book, divided by a USDT/USD spot basis, plus the Frankfurter official reference rate and the spread. OKX is archived and does not set the price. Not a central-bank rate and not a bureau de change quote.

Use this for a carrier's roadside inspection, violation and crash counts: inspections, driver and vehicle out-of-service rates, violations by BASIC (24-month SMS window), and recordable crashes over the trailing 730 days. Counts, not a rating. Billed whenever the USDOT number resolves; an unknown number is free.

Use this to find which carriers on your own list changed on or after a date, and what changed: authority, insurance, out-of-service and other tracked fields, each with old and new values. Metered: a base price plus a per-roster-entry price, both shown in get_catalog; billed whenever at least one roster entry resolves, even if nothing changed. As fresh as the last data refresh.

Pass/fail check: does the text rank within the top `min_rank` categories of its target taxonomy? Returns `pass`, the target's rank and gap to #1, the taxonomy's top five, and the unused phrases to work in. Use it as a content-pipeline gate. Paid, $0.05/call; read-only and safe to retry.

Last 30 days of arXiv preprints flagged as milestone candidates by an offline Qwen 3.6 27B per-paper extraction pass. Each paper carries structured reasoning naming the benchmark + quantified delta, model release, or novel architecture justification. Conservative; false positives are worse than false negatives.

TikHub — 171 per-call social-data endpoints (POST) across douyin/tiktok/wechat_channels/xiaohongshu/wechat_mp/lemon8/wechat_search/bilibili & more. Pass { endpoint, ...params } (params per endpoint; most reads take username/user_id/keyword + pagination_token). Find endpoints via vaaya/discover or the social-data knowledge doc. Most calls 1¢.

Gas sponsorship for one ERC-4337 user operation on Base (EntryPoint v0.8). Price = max($0.03, 1.3× the op's gas cap); this is the floor — send your user operation to get the exact quote. Bodies this URL accepts: {sender, calls[, redelegate:true]} (plain wallet, EIP-7702) | {userOperation} unsigned (any EntryPoint v0.8 smart account, bring your own operation) | JSON-RPC ERC-7677. Then POST the signed operation back here; we submit it. GET this URL?docs=1 for details. Quote valid 600s.

Current gas conditions on Base, read live from a public node: gas price, base fee of the latest block, suggested priority fee, latest block number and timestamp. No parameters. No third-party API, no cache.

Scan a URL for phishing or malware using heuristic signals (Google Safe Browsing, RDAP domain age, known IOC corpus) plus VirusTotal multi-engine analysis. Returns an async analysis ID to poll. Call before an agent clicks, fetches, or shares a link from an untrusted source.

Settlement assurance for a completed x402 payment on Base or Solana: confirm the transaction succeeded (0x hash or base58 signature), match the USDC transfer to an expected wallet and amount, format a receipt, and optionally audit the issuing endpoint - as one 0-100 scored report with a verdict.

Top 100 recent AI papers ranked by the share of their total citations earned in the most recent calendar year. Papers published in the last 2 years with 3+ citations. Surfaces papers that are still gaining traction now. OpenAlex CC0.

Decide whether an autonomous agent both can and should execute an exact x402 payment. Verifies predelegated spending authority, challenge/request integrity, and public merchant transaction-risk signals, then returns an evidence-based APPROVED, REVIEW or DENIED clearance plus a signed clearance token. APPROVED means the agent may proceed autonomously; REVIEW means do not auto-pay until higher-level review; DENIED means do not pay.

Finished styling report as a PDF (language: en default | ja), rendered from the full style-profile analysis: cover, verdict summary, palette with swatches, face/frame chapters, measured strengths, outfit formulas and two virtual-draping boards built from the client photo. Deterministic rendering - identical quality every call. The returned PDF embeds the photo (kept for receipt re-fetch; see /terms). Flat $2.99/call (volume: report-pack 10 credits at $1.99/unit).

Use ping when you need a pass/fail verdict that a URL serves expected content: expected HTTP status (default 200), a required body substring, and/or an exact match on one JSON field. One automated fetch at request time, signed receipt with per-condition results. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

RugRadar Watch + Alert: watch one Solana token (pump.fun incl.) for 24h ($0.05) or 48h ($0.10). Re-checked about every 10 min; signed webhook alert when the dev sells, liquidity drops 30%+, mint/freeze authority appears, risk score jumps 20+ points, or it can't be sold. Heuristic, may be wrong. Not financial advice.