Get card information and pricing by grader certificate number.

What can go wrong with a memecoin now, on Solana, Base and Robinhood Chain: mint and freeze authority, Token-2022 hooks, owner powers, a simulated buy and sell for honeypots and taxes, LP burn, holders and early buyers. Each check is definitive or heuristic, unknown never counts as a pass, and a verdict comes with plain flags. POST /v1/check with 1 to 10 tokens. Not financial advice.

infiniFi protocol data from the public infiniFi API: TVL, iUSD and siUSD supply and rates, siUSD and liUSD tier APYs, farms, the redemption queue and quotes, allocation votes and partner yields, plus any wallet's summary, PnL, history, unwinding, redemptions, votes and points. POST /v1/<route> with a JSON body. Read only; not affiliated with infiniFi. Pay per request in USDC; no API key.

Rule-based named-entity recognition for English text, from patterns and word lists rather than a trained model: persons, organisations, places, dates, money, percentages, emails, URLs and products, with character offsets. Best on clean, well-capitalised text; it misses names off its lists. POST /v1/ner with {text}. Pay per request in USDC; no account, no API key.

Returns the native ETH balance and ERC-20 token balances of one Base wallet address, read live from Base mainnet at the latest block: USDC, WETH and the rest of the top 200 Base tokens by market cap, plus up to 50 token contract addresses named in the request. Each row carries the token symbol, name, decimals, raw amount and human-readable amount. Suited to checking a wallet's current holdings before a payment, transfer or swap; returns no labels, identities, USD values or portfolio valuation.

One call replaces wallet-balance and gas reads across Base, Ethereum, Polygon, Arbitrum and Optimism. Returns native and USDC balances, current blocks, fees and Base x402 payment readiness. One signature instead of ten paid requests. Try GET /wallet-intelligence/sample.

Probe any public URL and report if it is an x402 paywall - price, network, payTo, scheme. Shop paywalls before you spend. Try GET /probe/sample.

API recommendation and x402 discovery for your task. Required query: need. Which API should I call? Recommends which x402 API to use for any task, with evidence. Describe a task in plain words. Compare up to five paid APIs, URLs, prices, payment networks and invocation details. Includes paid delivery evidence and risk flags. Provider calls are paid separately. No picks / non-2xx is never charged. Required: need=. Discovery quote only; signed requests without need are rejected.

Top Hacker News headlines right now - title, URL, score, comments. Fresh links for agents that need current tech/startup signal. Try GET /news/sample.

Classify agent-bound text for prompt injection: a safe, suspicious, or malicious verdict with the patterns that matched. POST /v1/prompt with {text} and get the classification as one JSON object. Deterministic per ruleset version. Pay per request in USDC; no account, no API key.

Get comparable sales (comps) for a card, with anomaly filtering and optional time-weighting. · needs a card_id (resolve via card-search, card-match, or image-match)

Drop-in web search API: POST the common search body (query, numResults, includeDomains, excludeDomains, contents.text) and get results with id, url, title, publishedDate and page text. Point an existing neural-search SDK base URL at https://search.cyberwarex.com/v1, no key. Keyword engine, Google-grade results on paid calls. Up to 10 links, text for the top 5. No results = not charged.

One radar or forecast picture read state by state: each state's highest value and where it stands, or its range and mean, highest first. This call needs picture, one of the 31 pictures the input schema names, as the radar page names them; the example below answers for real. Every address this endpoint serves is listed one at a time at https://stormstation247.com/api/x402.

One weather instrument's 247 rank: its place in its state today, reports due and received, timeliness, longest silence and its history. This call needs key, the instrument as net:<STATE>_<NETWORK>:<id>; the example below answers for real. Every address this endpoint serves is listed one at a time at https://stormstation247.com/api/x402.

What apartments in a Korean district actually sold for, from MOLIT's real-transaction register: each reported sale with price in KRW, area, floor and cancellation flag, monthly medians and quartiles, trends, and one complex across months. Use GET /v1/trades, /v1/trend or /v1/complex; POST /v1/query answers district trend questions in Korean or English. Pay per request in USDC; no API key.

UK HM Land Registry sold property prices by postcode.

Renewable share of US electricity generation from the EIA grid monitor: solar, wind, hydro and geothermal as a percentage of the latest hourly generation total, by grid region. Source: U.S. Energy Information Administration.

Validate and classify an email DOMAIN from public DNS: MX hosts + mail-provider, SPF and DMARC policy, plus disposable / free-webmail / role-account flags and a deliverability signal. No SMTP probing of individual mailboxes (privacy + ToS).

Run 2-5 web searches in one call with a 20% volume discount vs. individual searches. Each query returns ranked results (title, URL, snippet). Ideal for multi-faceted research or comparing sources on different aspects of a topic. If some queries fail upstream, the call returns the ones that succeeded with an error on each failed query and is charged; a call where every query fails is not charged.

Live Bitcoin mempool snapshot: unconfirmed transaction count, total virtual size and total fees, a fee-rate histogram broken into buckets, and an estimated block backlog. Informational, not advice.