{"ok":true,"version":"xindex-1.0","what":"x402 市場の公開索引（無料）。公開ディスカバリを読んで、売り手・値段・生存を実測して並べる。","read":{"summary":"/api/xindex/summary","hosts":"/api/xindex/hosts?q=&limit=&sort=","page":"/x402-index"},"services_indexed":27798,"hosts_known":1850,"liveness":{"measured":281,"live":280,"dead":1,"unmeasured":1569},"price_bands":{"under_100m":3245,"under_10m":7961,"under_1m":3140,"under_1":526,"over_1":89,"free":39},"crawl":{"cursor":15000,"total":27798,"pages_done":15,"last_at":"2026-10-20T21:42:10.181Z","last_full_at":null,"full_scans":0},"top_by_size":[{"host":"saylorinnovations.com","services":493,"priced_services":493,"price_min_usdc":0.01,"price_max_usdc":0.01,"networks":["eip155:8453","eip155:137","eip155:42161","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"sample_resource":"https://saylorinnovations.com/api/asteroids/close-approaches","sample":"Upcoming asteroid and comet close approaches to Earth (NASA CNEOS) - date, distance, velocity and size","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T21:42:10.181Z"},{"host":"email.intel.rallylive.ca","services":169,"priced_services":169,"price_min_usdc":0.001,"price_max_usdc":0.01,"networks":["eip155:8453","eip155:84532"],"sample_resource":"https://email.intel.rallylive.ca/watch/email/spf-authorizes/mailjet","sample":"Change watch for spf authorizes mailjet: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T21:42:10.181Z"},{"host":"www.mahastrategies.com","services":130,"priced_services":130,"price_min_usdc":0.002,"price_max_usdc":0.298962,"networks":["eip155:8453","eip155:42161"],"sample_resource":"https://www.mahastrategies.com/api/v1/compute/biology/qpcr-run-quality","sample":"Check supplied Ct replicates, efficiency and control declarations against fixed research QC bands; report Ct SD and failed conditions. No diagnostic validation. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T21:42:10.181Z"},{"host":"api.sirenic.eu","services":104,"priced_services":104,"price_min_usdc":0.003,"price_max_usdc":1,"networks":["eip155:8453"],"sample_resource":"https://api.sirenic.eu/v1/eu/entreprise/PL/:nip/marches-publics","sample":"Public-procurement record of a Polish company from the Biuletyn Zamówień Publicznych (e-Zamówienia public API, UZP, CC0; national below-EU-threshold notices since 2021): contracts WON matched by legal-person NIP — buyer (name, NIP), subject, CPV, part, outcome, tenders received, awarded price and contract value in PLN, contract date, enterprise size — and notices ISSUED as a buyer; newest first, c","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T18:36:45.848Z"},{"host":"47620.xyz","services":89,"priced_services":89,"price_min_usdc":0.005,"price_max_usdc":0.02,"networks":["solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","eip155:8453","eip155:137"],"sample_resource":"https://47620.xyz/x/solana-fac/should-pay/:solana_address","sample":"A pay / review / do-not-pay verdict before sending funds: account type, funding, activity, and risk, phrased as a decision an agent can act on. Optional ?amount=<usd> context.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T18:36:45.848Z"},{"host":"http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run","services":84,"priced_services":84,"price_min_usdc":0.001,"price_max_usdc":0.006,"networks":["eip155:8453"],"sample_resource":"https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/dns/changed","sample":"Detect material public DNS answer changes with a deterministic hash. TTL-only changes do not count and no arbitrary resolver or AXFR operation is exposed. Base mainnet USDC","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T10:27:05.452Z"},{"host":"agents.daedalusdevelopmentgroup.com","services":81,"priced_services":81,"price_min_usdc":0.005,"price_max_usdc":0.05,"networks":["eip155:8453"],"sample_resource":"https://agents.daedalusdevelopmentgroup.com/v1/spend/anomaly-scan","sample":"Signed stateless anomaly verdict over an agent transaction log: spikes, merchant concentration, overnight volume, vendor drift, burn-rate, duplicates.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T21:42:10.181Z"},{"host":"api.agentstools.dev","services":67,"priced_services":67,"price_min_usdc":0.001,"price_max_usdc":0.05,"networks":["eip155:8453"],"sample_resource":"https://api.agentstools.dev/gas","sample":"EVM gas oracle for any major chain - Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Avalanche: next-block baseFee plus slow, med and fast priority-fee tiers (maxFeePerGas and maxPriorityFeePerGas), read live from chain state in one call. Choose network (default Ethereum). EIP-1559 and legacy handled.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T18:36:45.848Z"},{"host":"api.delx.ai","services":66,"priced_services":66,"price_min_usdc":0.001,"price_max_usdc":0.002,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"sample_resource":"https://api.delx.ai/api/v1/x402/lei-lookup","sample":"Look up a 20-char Legal Entity Identifier via GLEIF for $0.002 USDC with status and legal name. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T21:42:10.181Z"},{"host":"chain.intel.rallylive.ca","services":63,"priced_services":63,"price_min_usdc":0.01,"price_max_usdc":0.01,"networks":["eip155:8453","eip155:84532"],"sample_resource":"https://chain.intel.rallylive.ca/tokens/new/bsc","sample":"BNB Smart Chain: Newest DEX pools / token launches on a chain, minutes after creation: token, price, liquidity, volume, buys/sells and creation time. Feed for sniper and screening agents (pair with /token/verdict). $0.02 per call.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T14:26:41.339Z"}],"cheapest_entries":[{"host":"x402-doctor.fizzl.eu","services":2,"priced_services":2,"price_min_usdc":1e-9,"price_max_usdc":2.5e-7,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","xrpl:0","algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8="],"sample_resource":"https://x402-doctor.fizzl.eu/api/v1/delivery-check","sample":"Does this x402 endpoint really deliver? x402 Doctor buys it once with the example input its own listing declares (at most $0.1, USDC on Base), checks the answer against the declared output schema and measures the charge on chain. Answers with a job id at once; the result is public, usually within 30 minutes. For sellers who want proof, and buyers before a big order.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T10:27:05.452Z"},{"host":"horizonpulse.dev","services":21,"priced_services":21,"price_min_usdc":2e-9,"price_max_usdc":3e-8,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","xrpl:0","eip155:137"],"sample_resource":"https://horizonpulse.dev/api/funding","sample":"Perpetual funding rates API: current BTC, ETH and SOL perp funding from OKX USDT swaps in one GET, no parameters. Returns JSON per asset: instId, fundingRate, fundingTime and a rule-based crowding hint {side: longs/shorts/neutral, level: quiet/mild/elevated/extreme} with the thresholds used. OKX public data only. The hint is not a forecast or advice. Errors are not charged.","discoverable":false,"live":true,"status":402,"latency_ms":284,"checked_at":"2026-10-20T14:26:45.223Z","updated_at":"2026-10-20T07:16:04.633Z"},{"host":"api.helpmyagent.com","services":1,"priced_services":1,"price_min_usdc":2e-9,"price_max_usdc":2e-9,"networks":["eip155:8453","xrpl:0"],"sample_resource":"https://api.helpmyagent.com/v1/company/fr/search","sample":"Searches French companies by name, SIREN, SIRET or optional location criteria and returns structured matching company records.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T18:36:45.848Z"},{"host":"api.vextorium.com","services":7,"priced_services":7,"price_min_usdc":5e-9,"price_max_usdc":0.005,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","eip155:137","eip155:10","eip155:5042","xrpl:0"],"sample_resource":"https://api.vextorium.com/v1/us-crypto-regulation","sample":"Latest official US government documents that affect crypto and markets: SEC press releases, litigation releases, statements and speeches, CFTC press releases, White House news and presidential actions. Filter by crypto relevance, source, keyword and days; optional 2-3 sentence AI summary of each document (Spanish or English). Public-domain sources with links to the originals.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T18:36:45.848Z"},{"host":"app.heinrichstech.com","services":3,"priced_services":3,"price_min_usdc":5e-9,"price_max_usdc":1e-8,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","xrpl:0","stellar:pubnet"],"sample_resource":"https://app.heinrichstech.com/v1/cdp/whois","sample":"BitBooth Whois: pay 0.01 USDC, get the parsed whois record for any domain — registrar, creation/updated/expiry dates, name servers, status flags, plus the raw whois text. Two-hop resolution via whois.iana.org then the authoritative registry over TCP port 43. 5s per-connection timeout cap. Rejects IPv4/IPv6 inputs and blocks SSRF at the DNS layer. Built for agents auditing domain ownership, monitor","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T21:42:10.181Z"},{"host":"mailpulse.theaslangroupllc.com","services":1,"priced_services":1,"price_min_usdc":5e-9,"price_max_usdc":5e-9,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","eip155:137","eip155:42161","eip155:480","eip155:143","eip155:196","eip155:999","algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k","xrpl:0","eip155:56"],"sample_resource":"https://mailpulse.theaslangroupllc.com/api/letters/ltr_6efe036558965c36","sample":"Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T07:16:04.633Z"},{"host":"stablecoinpulse.theaslangroupllc.com","services":5,"priced_services":5,"price_min_usdc":1e-8,"price_max_usdc":2.5e-7,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","eip155:137","eip155:42161","eip155:480","eip155:143","eip155:196","eip155:999","algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k","xrpl:0","eip155:56"],"sample_resource":"https://stablecoinpulse.theaslangroupllc.com/api/depeg-tick","sample":"Stablecoin peg tick — USDT, USDC, USDS, DAI, USDe, USD1 in ONE $0.01 call: live price, deviation from $1, 24h change, and a deterministic STABLE / WATCH / ALERT verdict per coin. Built for monitoring loops: call it every cycle, escalate to /api/depeg-watch for the single-coin deep read when a verdict is not STABLE. 60s freshness, cited to CoinGecko, no LLM in the path.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T04:06:54.940Z"},{"host":"presign-guard.fizzl.eu","services":2,"priced_services":2,"price_min_usdc":1e-8,"price_max_usdc":3e-8,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","xrpl:0","algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8="],"sample_resource":"https://presign-guard.fizzl.eu/v1/screen","sample":"Is this wallet sanctioned? Screens any chain's address (EVM, Solana, Tron, Bitcoin, XRP Ledger, Algorand) against the OFAC SDN list, synced from the US Treasury, plus theft, phishing and mixer reports for EVM addresses. Green/orange/red with the SDN entry (name, programs) when listed. For sellers screening who pays them and agents checking who they pay. Bulk: 100 checks for $0.80 via /v1/credits.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T10:27:05.452Z"},{"host":"api.agentweather.io","services":2,"priced_services":2,"price_min_usdc":1e-8,"price_max_usdc":3e-8,"networks":["eip155:8453","xrpl:0"],"sample_resource":"https://api.agentweather.io/v1/models/category/:name","sample":"Use when you need conditions across a model category (reasoning, coding, vision-input...) with per-model job cost. Conditions across one category of AI models listed on OpenRouter (GET /v1/models/category/{name}; name one of reasoning, coding, vision-input, image-output, audio, retiring-soon, price-moved, free-tier): counts, price changes in the last 24h, new and removed models, models with an exp","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T10:27:05.452Z"},{"host":"giftpulse.theaslangroupllc.com","services":1,"priced_services":1,"price_min_usdc":1e-8,"price_max_usdc":1e-8,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","eip155:137","eip155:42161","eip155:480","eip155:143","eip155:196","eip155:999","algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k","xrpl:0","eip155:56"],"sample_resource":"https://giftpulse.theaslangroupllc.com/api/giftcard/catalog","sample":"Search Reloadly's gift card catalog (300+ brands, 14,000+ products/denominations across countries). Returns each product's id, brand, country, denomination range or fixed amounts, and sender fee/discount — everything needed to build a POST /api/giftcard/quote call.","discoverable":false,"live":null,"status":null,"latency_ms":null,"checked_at":null,"updated_at":"2026-10-20T04:06:35.703Z"}],"honesty":"未測定は null。0 は「測って0」の意味でだけ使う。"}