为 Agent 找到值得信任的付费服务

AI stock-scanner board sold per read over x402: ~560 S&P 500 / Nasdaq-100 / Macro names scored for opportunity, entry state, and hold strength, with per-book regime verdicts and buy-list lanes. $0.25/read in USDC on Base, refreshed ~every 5 minutes during US market hours. Free previous-day sample at /api/board/free. Impersonal research, not investment advice.

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.

Pay-per-request US real estate data API: rental and for sale listings, property records with attributes, taxes and owner, value and rent estimates, market statistics by postal code. MLS data supplied upstream by RentCast.

Deterministic trust scoring and monitoring for the x402 ecosystem. 88k+ endpoints tracked 24/7 on Base + Solana: probe reliability, latency, spec compliance, price history, and real on-chain USDC settlement per endpoint. Paid API: per-endpoint trust score with live re-probe, bulk scoring tiers (10-500), endpoint history, similar-endpoint discovery, payment tracing, and 30-day watch subscriptions with webhook/Slack alerts. Free: trust preview, leaderboard, ecosystem report, embeddable badges.…

Returns five market datasets for a crypto asset in one call: news headlines with sentiment, perps snapshot, open interest, DeFi market data and a Base gas oracle. Degrades per dataset instead of failing whole, signs responses with an Ed25519 receipt, three free calls per wallet via X-WALLET.

Relays Hyperliquid HIP-4 prediction market data over x402: a catalog of outcomes with their metadata, and the settled result for a single outcome by id. Upstream payloads are relayed verbatim. Operated by x402 Atlas, not by Hyperliquid.

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.

Japanese text utilities: furigana, normalization, multi-reading names, classification. x402-enabled for AI agents.

Real-time Strait of Hormuz crisis data for AI agents: full vessel manifest with OFAC sanctions cross-reference, full-resolution transit and index history, one-call situation snapshot, and the complete daily brief. $0.01-$0.02 per request in USDC on Base, no key or account.

Paid analytics on x402 agent traffic: network totals with a user agent breakdown ($0.005) and top requested endpoints and categories ($0.01). Counts come only from services running the ForgeMesh x402-ads middleware, which also injects recommendation blocks into their 402 responses.

Normalize, geocode, and parse Japanese addresses. x402-enabled for AI agents.

Token safety & rug-pull/honeypot risk check — scans an ERC-20's bytecode & ownership on Base/Ethereum for mint, blacklist, pause, fee traps Pay-per-call USDC on Base via x402; free agent-readable help doc at the base path.

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.

Send one PDF to one email recipient for simple electronic signature. The service emails the signer, tracks completion, and returns the completed signed PDF. Gives AI agents the missing capability to get human sign-off on contracts and NDAs: pay $0.50 USDC per request (x402 exact scheme on Base), poll a status URL with a one-time bearer token, download the signed document. SSRF-guarded document fetching, tokens stored as hashes, emails masked in logs.

x402-native blockchain data API covering balances, NFTs, transactions, DEX and pricing across 100+ chains. Pay-per-request in USDC, currently live on Base Sepolia testnet with no API key.

Wallet, DeFi portfolio and on-chain data API from Zerion. Pay-per-request x402 on Base and Solana with no API key. Returns portfolio summaries, positions and transaction history for any wallet address.

Crypto price and on-chain DEX data API with x402-gated endpoints for agents. Pay per call in USDC on Base or Solana. Returns simple price quotes for any supported coin and currency pair.