为 Agent 找到值得信任的付费服务

AI-native semantic/neural web search API. Pay-per-query via x402 for agents without API keys.

On-chain analytics — wallet labels, Smart Money flows, Token God Mode. Monetized per-call via x402 on Base + Solana.

UK financial data API with four paid endpoints: Bank of England base rate history, currency exchange rates, UK CPI inflation figures, and a mortgage payment calculator.

16 pay-per-call x402 services for AI agents: on-chain Merkle anchoring, wallet/address security screening, Web3 data resolution (tx & calldata decode, ENS name resolution), token pricing, content analysis, and verifiable randomness. No API keys or accounts. Settle per request on Base USDC, Solana USDC, or Polygon JPYC (1 yen / anchor)

Pay-per-request API for public social media data across TikTok, Instagram, YouTube, X, LinkedIn, Facebook, Reddit and other platforms, priced at $0.06 per call. Aggregates third-party scraping providers (Scrape Creators, Data365, Lightreel) behind one x402 endpoint set.

x402 purchase endpoints from AnySpend on Base. POST /ads/buy and POST /articles/buy let agents pay per ad or article purchase in USDC.

Domain intelligence lookups: WHOIS, multi-resolver DNS, SSL/TLS certificate, technology stack, security headers, subdomain discovery and redirect chain. Each check is available on its own, or combined into a single full report. Paid per call in USDC on Base or Solana.

Korean crypto market data for AI agents: Upbit and Bithumb prices, kimchi premium, USD/KRW rate, arbitrage scanning across 189+ tokens, and AI sentiment built from Korean news. Pay per request via x402 on Base, Polygon or Solana.

AI-powered DeFi assistant swarm — 37 services covering market intel, news, token analytics, trading execution. Multi-chain (Base, Polygon, Solana).

Pay-per-use headless browser sessions for AI agents. No API keys or accounts, pay with crypto via x402 on Base. Create a browser session with prepaid time and receive a WebSocket connection URL for automation.

Institutional crypto market intelligence — AI chat trained on 30TB+ data covering 40,000+ assets. USDC on Base or Solana.

Monitors an EVM contract on Base or Ethereum and returns the current security verdict plus a diff of what changed since the last check: owner, proxy implementation, proxy admin, Sourcify verification, honeypot and tax flags. Ed25519-signed. 0.02 USDC per call on Base.

Current on-chain USD price for a token on a given chain, sourced from GeckoTerminal. Input is a network plus a token address. Volume and liquidity fields appear in the response but returned null in testing. First 3 calls per wallet are free via the X-WALLET header.

Returns OHLCV candles (open, high, low, close, volume) for a given crypto pair and interval, proxied from Binance public klines. The first 3 calls per wallet are free via the X-WALLET header.

DNS, IP, AS and Lightning Network intelligence API. 53 endpoints covering DNS lookups, reverse DNS, IP geolocation, BGP/ASN analysis and reputation scoring. Pay per lookup in USDC on Base via x402.

Combined DNS and WHOIS report for a domain: A, AAAA, MX, TXT, NS, CNAME, SOA and DNSSEC records over DNS-over-HTTPS, registrar and registration/expiry dates via RDAP, plus a 0-100 hygiene score with letter grade. Responses are Ed25519 signed. 3 free calls per wallet via X-WALLET header.

Machine translation API with automatic source-language detection. POST a text and a target language code, receive JSON with the translation and an Ed25519 signature over the result. A limited free trial is available per wallet.

Pay-per-call API returning live Hyperliquid perpetuals data for 230+ assets: open interest, funding rate (hourly, 8h, APR), mark and oracle price, premium, 24h volume and a crowded long/short signal, plus cross-venue funding vs Bybit and Binance. Ed25519-signed. First 3 calls free per wallet.

Multi-asset perpetual futures feed sourced from Hyperliquid: mark and oracle price, open interest, funding rate with 8h and APR derivations, 24h volume, spread and a directional signal, with optional single-asset detail. Responses are Ed25519 signed. Free trial calls via an X-WALLET header.

Single call snapshot of Hyperliquid perpetual futures. Returns mark and oracle price, hourly funding rate with 8h and APR derivations, open interest, premium and 24h volume across 232 perps, with an Ed25519 signed receipt. 3 free calls per wallet, then 0.001 USDC on Base.

Returns European Central Bank daily reference exchange rates for 30+ currencies, for any base and quote pair, proxied from the public Frankfurter API. Three free calls per wallet via an X-WALLET header before payment is required.

Audits a domain's email deliverability from DNS only: SPF, DKIM selectors, DMARC policy strength, BIMI, MTA-STS and MX, returning a 0-100 score and prioritized fixes. Responses carry an Ed25519 signed receipt. 3 free calls per wallet via the X-WALLET header, then 0.001 USDC on Base.

Validates an A2A Agent Card, given as a URL or inline JSON, against the A2A spec: required fields, skill schemas, endpoint reachability, security schemes and provider transparency. Returns a compatibility score, schema errors, warnings and an Ed25519-signed receipt.

Decodes a Base or Ethereum transaction from a tx hash or raw calldata and returns the decoded function, risk flags such as unlimited token approvals, and a risk verdict with an Ed25519 signed receipt.