x402watch

52,778 paid endpoints are listed. 41,522 answered a real 402 at the last check.

Every x402 endpoint on the Coinbase Bazaar and x402scan, probed unpaid every six hours. A listing tells you the price a seller wrote down. This tells you whether the endpoint is reachable, whether it charges what it declared, and how fast it answers. Ranked by an assay score out of 100.

Last check 2026-11-14 06:38 UTC · 52,778 probed

41,522 answering 4025,071 down5,452 rejecting733 no paywall944 price drift
  1. 94api.predictionmarketdata.io/market-statistics/sectorsAggregated prediction-market statistics by sector.$0.001 Baseno paywall4 payers90% up
  2. 91toll402.dev/v1/t/cui_gt_validateOffline validator for a Guatemalan CUI (Código Único de Identificación), the 13-digit national ID number. Parses the 13 digits into an 8-digit correlative, a 1-digit check digit, a 2-digit department code and a 2-digit municipality code, recomputes the check digit using the published weighted mod-11 formula (weights 2-9 over the 8 correlative digits, mod 11, 10→0) and compares it, returning validity plus the parsed components.$0.001 Baseno paywall4 payers93% up
  3. 91api.locus.report/api/locus-soil-contextReturns USDA SSURGO dominant-component suitability for septic, foundation, and drainage at an address via USDA Soil Data Access, for agents checking soil limits. Returns the same records as locus_soil_context. Use this when your client can only call paid x402 routes. Use locus_soil_context instead when you can call Locus free tools (REST tools/call or MCP).$0.01 Baseno paywall1 payers94% up
  4. 86x402-api-production-bd43.up.railway.app/sheetAll 19 x402 API prices in one call$0.01 Baseno paywall4 payers77% up
  5. 83signals.incomefather.com/quant/orbOpening range (first N minutes) high/low/size for the latest session in your bars, breakout state, first breakout, 1x/2x extension targets. POST JSON {bars, minutes, sessionStart, tz}. Max 5000 bars.$0.005 Baseno paywall1 payers80% up
  6. 81x402-api-production-bd43.up.railway.app/price-history24hr price history for a coin$0.01 Baseno paywall2 payers77% up
  7. 78x402-api-production-bd43.up.railway.app/fxLive FX exchange rate$0.01 Baseno paywall1 payers63% up
  8. 76signals.incomefather.com/quant/vwap-bandsVWAP + standard-deviation bands from your OHLCV bars (session-anchored or full), z-score and band position. POST JSON {bars:[{t,o,h,l,c,v}], anchor, bands, tz}. Max 5000 bars.$0.005 Baseno paywall2 payers60% up
  9. 75vedetta.dethboy.com/v1/track-recordVerifiable analyst call log and transparency stats (?asset=BTC optional): every signal this desk has published, timestamped and countable, plus total paid calls served. $0.07 USDC x402. Free Korra calls log: /v1/korra/calls. Descriptive research, not financial advice.$0.07 Baseno paywall1 payers63% up
  10. 75softbot-emailcheck-mainnet.softbot.workers.dev/v1/domainEmail domain check: whether a domain can receive mail (MX/A, null MX), is disposable or a free provider, likely typo, SPF/DMARC/DKIM posture and registration age. Use when an agent needs to vet a company or sender domain rather than a specific mailbox. One domain per call.$0.002 Solanano paywall1 payers67% up
  11. 72softbot-reader-mainnet.softbot.workers.dev/v1/extractReader Pro: fetch a public web page and return structured data, no LLM: OpenGraph/meta tags, parsed JSON-LD (schema.org), HTML tables as row objects, deduped internal/external links, emails/phones/social profiles, heading outline, images with alt text, plus optional CSS-selector fields.$0.004 Solanano paywall7 payers62% up
  12. 71signals.incomefather.com/quant/atr-stopWilder ATR, ATR-multiple stop and position size from account risk %. POST JSON {bars, period, multiplier, side, accountSize, riskPct, pointValue}. Max 5000 bars.$0.005 Baseno paywall3 payers60% up
  13. 71forge-tools.dentreprise.workers.dev/api/no-companyNorwegian company register (Brønnøysundregistrene) by org number or name: legal form, registration and founding dates, VAT registration and VAT number, bankruptcy, liquidation and forced-dissolution flags, employees, industry, address, website.$0.002 Baseno paywall1 payers60% up
  14. 71forge-tools.dentreprise.workers.dev/api/uuid-v7RFC 9562 UUIDv7 generator (time-sortable, 1-100 per call, optional timestamp) and UUID validator/decoder (version, variant, embedded timestamp for v1/v7).$0.001 Baseno paywall1 payers60% up
  15. 70softbot-reader-mainnet.softbot.workers.dev/v1/readFetch a public web page and return clean markdown, title and metadata. Respects robots.txt.$0.003 Solanano paywall10 payers67% up
  16. 70softbot-screenshot-mainnet.softbot.workers.dev/v1/screenshotRender any public web page in a real headless Chrome and return a PNG/JPEG screenshot (base64 JSON, or raw image with ?raw=1). Viewport up to 1920x1920, optional full-page capture up to 8000px tall, optional wait for late content. Use when an agent needs to see what a page actually looks like (visual check, JS-rendered content, layout/UI review, evidence capture, feeding a vision model) rather than its text.$0.01 Solanano paywall7 payers67% up
  17. 66api.aiphabrainlab.com/v1/pretrade-checkBinance public pretrade check ($0.005)$0.005 Baseno paywall4 payers60% up
  18. 64smx.space/v1/markets/:id/midRead SMX (Space Markets Stage 1) testnet event markets on space milestones, e.g. Starship Flight 14 and The Moon Race, on Base Sepolia (eip155:84532): list markets, market detail, or mid price in cents. Each read costs $0.01 test USDC via x402. Test collateral has no monetary value. This API does not place orders: trading is wallet-signed from your own wallet per https://smx.space/skill.md. Docs: https://smx.space/llms.txt$0.01 Base Sepoliano paywall1 payers40% up
  19. 63how.is/v1/url/preflightCheck whether a URL is safe to fetch, read, sign in to or pay before you do: domain age, look-alike, blocklists, HTTPS, robots.txt for your agent and the site's own x402 price.$0.005 Baseno paywall1 payers38% up
  20. 63x402-api-production-bd43.up.railway.app/yieldsTop 20 DeFi yields by APY$0.01 Baseno paywall1 payers38% up
  21. 63x402-api-production-bd43.up.railway.app/weatherCurrent weather by lat/lon$0.01 Baseno paywall1 payers38% up
  22. 63x402-api-production-bd43.up.railway.app/newsTop 10 Hacker News stories$0.01 Baseno paywall1 payers38% up
  23. 63x402-api-production-bd43.up.railway.app/gasCurrent Base network gas price in gwei$0.01 Baseno paywall1 payers38% up
  24. 63x402-api-production-bd43.up.railway.app/fear-greedCrypto Fear & Greed index$0.01 Baseno paywall1 payers38% up
  25. 63x402-api-production-bd43.up.railway.app/dominanceBTC/ETH/other market dominance$0.01 Baseno paywall1 payers38% up
  26. 61x402-api-production-bd43.up.railway.app/domainsAll 8 seller domains$0.005 Baseno paywall3 payers43% up
  27. 61ausref.dev/v1/jobs/charge-saleCharge this sale: should this invoice carry VAT, which country's, and how much - place of supply (EU, UK, South Africa rules), net/VAT/gross, registration threshold, cited. Unverified pairs refused free.$0.50 Baseno paywall1 payers57% up
  28. 61usaref.dev/v1/jobs/charge-sale/certifiedCharge this sale, certified$0.75 Baseno paywall1 payers57% up
  29. 61api.aiphabrainlab.com/v1/overnight-briefOvernight decision brief (JSON + Markdown): regime, triggers/invalidations, position caps, evidence, historical scenario rates ($0.50). Research only — no orders.$0.50 Baseno paywall1 payers60% up
  30. 59forge-tools.dentreprise.workers.dev/api/fr-school-calendarFrench school holidays (calendrier scolaire, Éducation nationale) by school year and zone A/B/C (or overseas/Corsica), with académies, start/end dates, and an optional date test (is this date a school holiday, and where).$0.001 Baseno paywall1 payers40% up
  31. 58how.is/v1/companyLook up the company behind a domain: name, description, category, location, socials, mail/DNS/hosting providers and registration, each with source and confidence.$0.01 Baseno paywall1 payers38% up
  32. 58x402-api-production-bd43.up.railway.app/athAll-time high for a coin$0.01 Baseno paywall1 payers38% up
  33. 57mcp.viridisconservation.com/x402/regulatory-radar/scan_regulationsEnergy and climate compliance regulation scan across a curated 14-regulation database, with jurisdiction, urgency, and effective-date signals, including California SB 253 and SB 261 status. The scan step pairs with Viridis GHG inventory, sustainability disclosure, and clean-energy tax-credit engines.$0.01 Baseno paywall4 payers37% up
  34. 56squeezeos-api.onrender.com/api/forecast-court/verified-auditForecast Court verified audit API — return an independent verification receipt for a frozen five-session forecast result cohort for one symbol and strategy.$0.01 Baseno paywall1 payers36% up
  35. 56how.is/v1/bot/verifyVerify a crawler's identity: is this IP + user-agent really Googlebot, Bingbot, GPTBot or ClaudeBot, an impostor using the name, another bot, or a person?$0.005 Baseno paywall1 payers34% up
  36. 56how.is/v1/domain/blacklistWhether the addresses behind a domain appear on spam and abuse blocklists.$0.005 Baseno paywall1 payers34% up
  37. 56how.is/v1/domain/email-authSPF, DKIM and DMARC records and posture for a domain.$0.005 Baseno paywall1 payers34% up
  38. 56how.is/v1/domain/dnssecWhether DNSSEC is signed and validates for a domain.$0.005 Baseno paywall1 payers34% up
  39. 55softbot-evmcheck-mainnet.softbot.workers.dev/v1/priceUSD price, 24h volume, liquidity, and 24h change.$0.003 Solanano paywall3 payers33% up
  40. 54flow-kg4x.vercel.app/api/verifyUse when an agent is about to approve, buy, or first interact with an unfamiliar Base token or contract and needs a safety verdict before risking funds. Flow contract safety verification: send a token or contract address on Base and get a verdict (safe|caution|danger), a 0-100 safety score, the red flags found, and plain-English agent advice (APPROVE / REVIEW_MANUALLY / DO_NOT_APPROVE).$0.02 Baseno paywall2 payers23% up
  41. 54how.is/v1/readRead a web page as clean markdown, with a safety verdict attached: robots.txt honored for your agent, risky sites flagged as untrusted, optional screenshot.$0.005 Baseno paywall1 payers31% up
  42. 54how.is/v1/domain/changesCheck when a domain appeared in the registry zone file, left it, came back or changed nameservers, from daily gTLD and .com/.net zone files. A sudden nameserver move signals a hijack or sale; a brand-new name signals phishing.$0.01 Baseno paywall1 payers31% up
  43. 54how.is/v1/bot/verify/batchVerify many crawler visitors (IP + user-agent) in one call: real Googlebot, GPTBot, ClaudeBot or impostor, billed per item.$0.01 Baseno paywall1 payers31% up
  44. 54how.is/v1/watch/pageHas this page changed since your last call, and how much? The first call stores a baseline; later calls return a text diff (2% threshold).$0.005 Baseno paywall1 payers31% up
  45. 54how.is/v1/check/siteLive check of one or more URLs: HTTP status, latency, DNS resolve time, resolved IP, TTL, nameservers, TLS days remaining.$0.005 Baseno paywall1 payers31% up
  46. 54how.is/v1/ipNetwork owner (ASN), company, geolocation, privacy flags and abuse contact for an IP address.$0.005 Baseno paywall1 payers31% up
  47. 54how.is/v1/domain/security-scoreA letter grade and point score for a domain security posture, with the scored items behind it.$0.005 Baseno paywall1 payers31% up
  48. 54how.is/v1/domain/tlsCertificate validity, issuer, protocol and days until expiry for a domain.$0.005 Baseno paywall1 payers31% up
  49. 54how.is/v1/domain/availableIs this domain name registered? Asked of the registry over RDAP, with the standard first-year and renewal price when it is free to register.$0.005 Baseno paywall1 payers31% up
  50. 53usaref.dev/v1/jobs/hire-compareHire compare (2 countries)$0.75 Baseno paywall1 payers43% up
  51. 49how.is/v1/domain/ageHow old a domain is: registration date, age in days and years, and whether it was registered in the last 30 days (a common phishing signal).$0.005 Baseno paywall1 payers31% up
  52. 49how.is/v1/domain/whoisRegistrar, creation and expiry dates, nameservers and status codes for a domain.$0.005 Baseno paywall1 payers31% up
  53. 47forge-tools.dentreprise.workers.dev/api/uk-postcodeUK postcode lookup and validation (postcodes.io, ONS/OS open data): country, region, district, ward, parish, constituency, lat/lon, eastings/northings, NUTS; terminated postcodes detected; reverse lookup from lat/lon.$0.001 Baseno paywall3 payers20% up
  54. 47forge-tools.dentreprise.workers.dev/api/wikidata-entityWikidata entity lookup by Q-id or search text: label, description, aliases in a chosen language, key claims (instance of, country, coordinates, inception, website, population, HQ, founders, industry, identifiers such as LEI/ticker/ISNI…) with resolved labels, Wikipedia link.$0.002 Baseno paywall1 payers20% up
  55. 47api.ibanforge.com/v1/iban/validateValidate a European IBAN and enrich it with bank, compliance and routing data. Use whenever the user mentions an IBAN, a bank account, a SEPA payment or asks who the bank is. Returns: valid, country, BIC/SWIFT, bank name, EMI/vIBAN flag, SEPA + VoP reachability, risk score, Swiss bc_nummer for CH/LI. Production · server processing <5ms (network excluded — measure your own round trip on GET /ping) · 121,000+ BICs (39,000+ LEI via GLEIF) + 1,100+ SIX · v1.5.0.$0.005 Baseno paywall1 payers20% up
  56. 46smx.space/v1/markets/:hash/midRead SMX (Space Markets Stage 1) testnet event markets on space milestones, e.g. Starship Flight 14 and The Moon Race, on Base Sepolia (eip155:84532): list markets, market detail, or mid price in cents. Each read costs $0.01 test USDC via x402. Test collateral has no monetary value. This API does not place orders: trading is wallet-signed from your own wallet per https://smx.space/skill.md. Docs: https://smx.space/llms.txt$0.01 Base Sepoliano paywall1 payers18% up
  57. 44pontofato.com/api/x402/cep/:cepAddress lookup for CEP 01310100: the addresses and the companies registered there. One payment for this call.$0.001 Baseno paywall1 payers20% up
  58. 40api.aiphabrainlab.com/v1/pretrade-check-litePre-trade check lite ($0.01): fast execution gate for trading agents. Checks a proposed Binance spot/usdm order against public exchange rules and estimates slippage, then returns pass/warn/block with up to 3 reasons. Never places orders. Full report: POST /v1/pretrade-check ($0.10). 交易前检查轻量版（pre-trade check，$0.01）：交易代理的执行闸门（execution gate），按币安公开规则校验拟下单并估算滑点（slippage），返回通过/警告/拦截及最多3条原因；不下单。$0.01 Baseno paywall1 payers25% up
  59. 39radar-cnpj.com/api/x402/cep/:cepAddress lookup for CEP 01310100: the addresses and the companies registered there. One payment for this call.$0.001 Baseno paywall1 payers20% up
  60. 37agents.ai-rook.com/api/ip-lookupIP geolocation, ASN, and proxy/VPN detection. Pass ?ip=x.x.x.x or omit for caller IP.$0.001 Baseno paywall7 payers3% up
  61. 37api.lumitrades.io/v1/trust/checkUse when an agent should check before paying an x402 resource URL: a pre-payment trust check that returns allow, warn or block with coded reasons. Built from a daily index of the CDP Bazaar catalog, unpaid 402-quote checks and Lumi Trades' own on-chain test purchases on Base, the XRP Ledger and Stellar. Optional payTo and amount inputs catch address or price mismatches. A free signed version is at /v1/check. Not charged on bad input. Observations, not a guarantee.$0.02 Baseno paywall3 payers3% up
  62. 34research.zaiba.cloud/api/v1/package/npm/left-padDeAI artifact gateway: reuse (package_check). Deterministic JSON with byte-exact quotes for $0.0100; no crawl, no bot walls.$0.01 Baseno paywall1 payers3% up
  63. 30vaaya.ai/api/run/cueframe/upload$0.01 Baseno paywall–8% up
  64. 25agents.ai-rook.com/api/gas-trackerCurrent Base mainnet gas prices. Slow, standard, fast in gwei.$0.001 Baseno paywall4 payers0% up
  65. 25verify.agentutil.net/v1/verifyFact verification — returns verdict, confidence, current truth$0.004 Baseno paywall4 payers0% up
  66. 25api.mekongtradeintel.com/tokenpriceToken price API: live crypto price, market cap, 24h volume, liquidity via DexScreener. Memecoin prices, DEX token quotes. $0.001/call, USDC on Base. No account or API key needed.$0.001 Baseno paywall4 payers0% up
  67. 25hcrb.in/v1/tools/iban-check/callValidate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.$0.005 Baseno paywall3 payers0% up
  68. 25api.mekongtradeintel.com/briefMorning briefing: crypto/stock news headlines + Google Trends intel + news sentiment in one call. Daily market briefing for AI agents. $0.01/call, USDC on Base. No account or API key needed.$0.01 Baseno paywall3 payers0% up
  69. 25api.mekongtradeintel.com/aiverdictAI token verdict: GoPlus honeypot/tax/owner screen + DexScreener liquidity, then an LLM writes the SAFE/RISKY/SCAM verdict. Memecoin rugcheck. $0.01/call, USDC on Base. Not financial advice.$0.01 Baseno paywall2 payers0% up
  70. 25api.mekongtradeintel.com/timeTrusted server time API for AI agents — ISO 8601 UTC timestamp, $0.001 USDC on Base per call. Use when your agent needs reliable current time.$0.001 Baseno paywall2 payers0% up
  71. 25api.mekongtradeintel.com/newsHeadlines by topic from public RSS feeds (Google News + Hacker News). $0.002 per call. No account or API key needed.$0.001 Baseno paywall2 payers0% up
  72. 25api.mekongtradeintel.com/aisearchAI-synthesized web search. $0.007/call. Google results + AI summary with key points and direct answers — not just links, actual understanding.$0.007 Baseno paywall2 payers0% up
  73. 25api.mekongtradeintel.com/websearchWeb search API via Google (Serper): deduped, spam-filtered SERP results with relevance scores. Web search, news search for AI agents. $0.01/call, USDC on Base. No account or API key needed.$0.01 Baseno paywall2 payers0% up
  74. 25hcrb.in/v1/tools/gstin-check/callValidate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.$0.005 Baseno paywall2 payers0% up
  75. 25api.mekongtradeintel.com/uuidUUID v4 generator API for AI agents — cryptographically random UUID per call, $0.001 USDC on Base. IDs for jobs, dedup keys, request tracing.$0.001 Baseno paywall2 payers0% up
  76. 25api.mekongtradeintel.com/statusx402 fleet health status API — live up/down check of core endpoints with timestamp, for AI agent monitoring dashboards. $0.001 USDC on Base per call.$0.001 Baseno paywall2 payers0% up
  77. 25api.mekongtradeintel.com/randRandom number API for AI agents — crypto-secure random int + hex per call, $0.001 USDC on Base. Salts, nonces, lotteries, A/B assignment.$0.001 Baseno paywall2 payers0% up
  78. 25api.mekongtradeintel.com/quoteRandom motivational quote API for AI agents — fresh public-domain quote every call, perfect for agent status messages and dashboards. $0.001 USDC on Base per call.$0.001 Baseno paywall2 payers0% up
  79. 25api.mekongtradeintel.com/pingPing / heartbeat API for x402 agents: pong + server timestamp + uptime + host id. Test your x402 payment stack end-to-end. $0.001/call, USDC on Base. No account or API key needed.$0.001 Baseno paywall2 payers0% up
  80. 25api.mekongtradeintel.com/metadataRequest metadata echo API for AI agents — returns your IP, user-agent, timestamp and server time, $0.001 USDC on Base. Debug agent HTTP stacks.$0.001 Baseno paywall2 payers0% up
  81. 25api.mekongtradeintel.com/ipCaller IP lookup API for AI agents — your egress IP + country/ASN when available, $0.001 USDC on Base per call. Debug routing and geo checks.$0.001 Baseno paywall2 payers0% up
  82. 25api.mekongtradeintel.com/emailverifyEmail verification API: syntax check + DNS MX record lookup + disposable email detection. Validate email lists, catch bounces. $0.001/call, USDC on Base. No account or API key needed.$0.001 Baseno paywall2 payers0% up
  83. 25api.mekongtradeintel.com/weatherCurrent weather + 3-day forecast for any latitude/longitude, powered by Open-Meteo. $0.001 per call. No account or API key needed.$0.001 Baseno paywall2 payers0% up
  84. 25api.mekongtradeintel.com/tokenscreenerNew-token screener: latest profiled tokens ranked by liquidity. $0.008 per call. Send {"min_liq","max_age_h"}.$0.001 Baseno paywall2 payers0% up
  85. 25api.mekongtradeintel.com/stocksStocks/ETF/crypto OHLCV via Yahoo Finance. $0.003 per call. Send {"symbol":"AAPL","interval":"daily","range":"3mo"}.$0.001 Baseno paywall2 payers0% up
  86. 25api.mekongtradeintel.com/sec8kRecent SEC 8-K filings with Item codes parsed from the latest filing. $0.002 per call. Send {"ticker"} or {"cik"}.$0.001 Baseno paywall2 payers0% up
  87. 25api.mekongtradeintel.com/randomNovelty randomness API. $0.001 per call. Random facts, coin flips, dice rolls — for games, decisions, and fun.$0.001 Baseno paywall2 payers0% up
  88. 25api.mekongtradeintel.com/perpfundingPerp funding rate + mark price for any Hyperliquid perps symbol. $0.001 per call. Send {"symbol"}.$0.001 Baseno paywall2 payers0% up
  89. 25api.mekongtradeintel.com/gastrackerBase gas tracker: base fee + slow/standard/fast tiers in gwei. $0.001 per call. No input needed.$0.001 Baseno paywall2 payers0% up
  90. 25api.mekongtradeintel.com/fxratesFX rates (daily reference — not real-time). $0.004 per call. Send {"pair":"USDVND"}.$0.001 Baseno paywall2 payers0% up
  91. 25api.mekongtradeintel.com/defiyieldTop DeFi yield pools by APY across chains (DefiLlama data): pool, chain, project, APY, TVL. $0.001 per call. Heuristics only — not financial advice.$0.001 Baseno paywall2 payers0% up
  92. 25api.mekongtradeintel.com/chainRead live Base chain state for any address: ETH balance, latest block, contract/EOA check, ENS name. $0.002 per call. No account or API key needed.$0.002 Baseno paywall2 payers0% up
  93. 25api.mekongtradeintel.com/academicAcademic paper search with abstracts, authors, citations. $0.008 per call. Send {"query"}.$0.004 Baseno paywall2 payers0% up
  94. 25api.mekongtradeintel.com/rugcheckToken safety screen: proxy/owner/liquidity checks + transfer simulation. $0.005 per call. Heuristic only, not financial advice.$0.005 Baseno paywall2 payers0% up
  95. 25api.mekongtradeintel.com/polymarketSearch Polymarket prediction markets: prices, volume, outcomes. $0.006 per call. Send {"query"}.$0.006 Baseno paywall2 payers0% up
  96. 25api.mekongtradeintel.com/agentrecommendRecommend x402 APIs for your task, ranked by keyword match + real on-chain demand. $0.008 per call. Send {"task"}.$0.008 Baseno paywall2 payers0% up
  97. 25api.mekongtradeintel.com/marketdataLive market data API: BTC/ETH/SOL crypto prices + SPY/QQQ/DIA stocks + VNINDEX. Whole board in one call. Crypto price feed, stock quotes. $0.01/call, USDC on Base. No account or API key needed.$0.01 Baseno paywall2 payers0% up
  98. 25api.mekongtradeintel.com/ksearchMTI Knowledge Search: query 11 Vietnam trade & natural-farming guides (EN+VI). $0.010 per call. Send {"query":"..."}. Returns top micro-excerpts with source + link to full guide.$0.01 Baseno paywall2 payers0% up
  99. 25api.mekongtradeintel.com/agriviAgri Viet Q&A: hoi dap nong nghiep tieng Viet (enzyme, vi sinh, trong trot). $0.01/call.$0.01 Baseno paywall2 payers0% up
  100. 25x402.pkgproof.net/v1/verifyCall before an agent runs npm install or pip install. Checks one npm or PyPI package against the registry, OSV advisories, install scripts, typosquat and combosquat names and repository provenance, and flags hallucinated or slopsquatted names. Answers safe, caution, block or does_not_exist; every reason is sourced and labelled fact or heuristic.$0.05 Baseno paywall1 payers0% up