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Full risk card for one Base yield opportunity: 0-100 risk score with the main risks and their evidence, yield sources, sustainable APY, expected return, liquidity, dependencies and recent risk events. Useful before depositing into, recommending or comparing a Base yield. The id comes from the free /api/v1/opportunities. Unknown ids answer 404 and invalid arguments 400 before any payment; 503 while

Current crypto Fear & Greed Index with 1-day change (alternative.me).

Instant weather by city name — temperature, feels-like, humidity, wind speed, precipitation, and condition. Just pass a city name; geocoding, data fetching, and response structuring are handled in one call. Global coverage updated every 15 minutes. No API keys, no geocoding setup, no rate limits. Accepts USDC payments on Base and Solana

Search Android apps and games by name, publisher or package name across the APKCube catalogue of Google Play apps. Each match returns the package id, title, developer, icon, rating, installs, category and whether an APK download is available, with facet counts by type and category. Keyless pay-per-call in USDC on Base or Solana: no account or API key.

Sanctions screening for a crypto wallet before you pay it: checks the address, and an agent's owner and payout wallet, against OFAC SDN-listed EVM addresses, then returns a 0-100 trust score, risk band and proceed / hold / block from on-chain history and sybil-filtered ERC-8004 reputation. Every flag and score component is itemized; insufficient_data instead of a guess. Base. Free: GET /v1/verify.

What are the symbol, name, decimals, contract address and issuer of this stablecoin on this chain? Cited stablecoin token facts from a prepared dataset (USDC, EURC, USDT, PYUSD, DAI on the chains /v1/chain covers, where a permissively licensed source lists them): symbol, name, decimals, contract address, chain, issuer, each with a source citation and license. Fields not established from a source a

Read any public web page as clean, LLM-ready Markdown. URL to markdown web scraper: fetches the page, strips navigation, ads, scripts, cookie banners and boilerplate, keeps the main content with headings, lists, links and tables. Use it to read, quote or summarise an article, docs page, blog post, product page or GitHub issue from a URL. Typically 90-99% fewer tokens than raw HTML; token counts re

Freshness heartbeat only (list date, address count, fetched_at) for both Japan MOF and OFAC sanctions lists. No addresses. Cheapest polling entry point for change-detection loops.

The catalog of Hyperliquid prediction-market outcomes and their metadata.

Returns a single, verifiable snapshot of any EVM wallet: native balance, ERC-20 token balances, current block number, and recent activity count across the most popular chains (Ethereum, Base, Arbitrum, Polygon). Built for x402 agents that need on-chain facts without managing RPC keys or node infrastructure. Each call returns a deterministic JSON payload with a chain-specific block number at snapsh

Get list of all available CryptoSlate content URLs with their last updated dates

Daily JSON bundles for agents: BTC/ETH volatility regime, crypto news with top x402 sellers, Brazil business calendar, x402 agent economy, Base chain gas, US macro (CPI, unemployment, SOFR). This route serves the btc-eth-vol-regime bundle.

x402 ping and test payment: can my wallet pay an x402 API? Pay a fraction of a cent in USDC on Base and get a signed receipt back, proof that your wallet and x402 client complete a real paid call end to end, plus what the Lab knows about your wallet and which tool to try next. Use when an agent needs a cheap test payment endpoint before buying anything bigger.

Fetch a reviewed public page and return its links with resolved absolute URLs and anchor text, the canonical URL, the declared meta robots directive, and how many links leave the host. Relative hrefs are resolved against the page, so a caller never has to guess a base.

For $0.002, privacy-conscious email preflight: submitted addresses and request bodies are not intentionally logged in routine application telemetry (full address still reaches our server). Inspect syntax, DNS/MX, listed disposable domains and provider typos; receive structured decisions. API reverse-proxy access logging is disabled; infrastructure/payment providers may keep records. No zero-retent

Trust score (0-100, grade A-F) for any x402 endpoint, cataloged or not: 30d uptime, 402-envelope compliance, latency, age, real on-chain USDC settlement volume, and price stability, with a full auditable breakdown. Uncataloged endpoints are live-probed on first query and auto-adopted. Know before you pay.

Perpetual futures funding rates and open interest (Hyperliquid), live: the 10 perps with the most extreme funding rate now (over $1M 24h volume), each with annualized funding APR and open interest in USD, plus the current funding rate for a BTC/ETH/SOL/HYPE/NEAR/AAVE watchlist. Use it to spot crowded longs or shorts, squeeze risk and funding-carry candidates. Failed calls are never charged. JSON.

Call when you need the readable content of a public web page: returns clean markdown (title, headings, lists, links; scripts and navigation removed), up to 100k characters. Pages that fail (404, blocked, timeout) are not charged.

OFAC sanctions screening for crypto wallet addresses: exact match against every digital currency address on the U.S. Treasury OFAC SDN list (BTC, ETH, USDT, USDC, TRX, SOL, LTC, XMR and more). Useful for compliance and AML checks before paying a counterparty or an x402 payTo. Up to 20 comma-separated addresses; returns sanctioned true/false, SDN name, programs, official link and list freshness. Er

Screen one address (EVM, BTC, Tron, Solana, DOT, XRP, XLM, DOGE, LTC, DASH, STX, TON, Cosmos or wax:account) against the OFAC SDN list, Tether/Circle freezes (EVM, Tron, Solana) and C3 reports. Returns action BLOCK (OFAC SDN match), REVIEW (reported or frozen; current freeze = HIGH) or ALLOW_NO_REPORTS, riskScore, riskLevel, sanctions, freezes, reports, related domains, co-occurring addresses. NON

VIN decode (x402; 402 first, $0.005, Base then Solana)

Screen an EVM wallet or contract address BEFORE paying it. Deterministic, keyless compliance / safety gate: checks the address against the OFAC sanctioned crypto-address list and a curated taint set (mixer, hack, scam) and returns a single BLOCK / REVIEW / ALLOW recommendation plus the matched sources, so an AI agent can decide whether to send funds. No API keys, no LLM, one x402 USDC micropayment

TraceFast knowledge graph: what an Ethereum address is, as proven facts — wallet or contract, proxy and upgradeable or not, a token and its standard, and for a token contract whether it can pause, mint or blacklist and whether it ever did. Each fact names the block it was evaluated at; an absent fact is not proven. Ethereum mainnet only. Path address: 0x-prefixed, 40 hex. Attribute dictionary: htt

On-chain spot price of ETH or BTC in USDC from the deepest Uniswap v3 pools on Ethereum mainnet, read from a full node at the latest block (no third-party price feed). Pairs: ETH-USDC, BTC-USDC. Use it as an independent, verifiable price reference; it reflects the pool price, not an exchange average.

Is the stock market open right now? Deterministic market-status and trading-hours for the major global exchanges — NYSE, NASDAQ, LSE, Xetra, Euronext, TSE/JPX, HKEX, SSE, ASX, TSX, SIX, NSE/BSE. Returns is_open plus why it is shut (weekend, holiday, lunch break, pre/after-hours), the exchange local time, and the next open and close as ISO timestamps. Pass ?at= for any past or future moment. Zero e

One-call market snapshot: BTC/ETH/SOL spot prices with 24h change plus the Crypto Fear & Greed index. The cheapest way for an agent to establish market context.

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 bef

Real crypto market data in one batched call: price, market cap, market-cap rank, 24h volume/high/low/change, circulating/total/max supply, and all-time-high with date -- for BTC, ETH, SOL, and 17+ other major coins by ticker. Richer than a plain price feed: most stock-data APIs' crypto tickers report null market cap. From CoinGecko. $0.005/call.

Cheapest way to test this API and your x402 wallet. Returns the same one-line healthy/watch/distress verdict + fraud-risk flag as /v1/verdict, for one of these sample tickers: AAPL, MSFT, NVDA, TSLA, META, BRK-B, JPM, CVX, KO, SMCI (query ticker=, default AAPL). Data: SEC EDGAR 10-K XBRL. Errors are never charged (bad tickers rejected before payment; failed calls not settled).

Independent pre-execution control for consequential autonomous-agent actions. Evaluate a proposed payment, tool call, send, write, publish operation, API action, or other external side effect before execution; return the required approval or human-review boundary and verify that risk stays within the declared limit. 3 bounded free preview calls are available via extensions.humanmirrorPreview.