x402watch

53,296 paid endpoints are listed. 24,164 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 2026-10-06 18:44 UTC · 53,296 probed

24,164 answering 40223,338 down4,952 rejecting842 no paywall1,722 price drift
  1. 922s.io/api/weather/air-qualityCurrent air quality for any coordinate worldwide. Pass lat + lon. Returns the US AQI (+ category Good/Moderate/Unhealthy…), the European AQI, and pollutant concentrations: PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide, carbon monoxide. Source: Open-Meteo / CAMS (keyless).$0.003 Base832 ms1 payers100% up
  2. 922s.io/api/nutrition/foodUSDA FoodData Central nutrition lookup. Two modes: search (query=cheddar cheese) returns matching foods with fdcId, description, data type, category, and brand; detail (fdcId=328637) returns the full analyzed nutrient profile — energy, protein, fats, carbohydrates, vitamins, minerals — with USDA nutrient numbers, amounts, and units (per 100 g/ml unless serving fields indicate otherwise), plus ingredients for branded foods. Filter search by dataType: Foundation and SR Legacy are lab-analyzed generic foods, Branded is the packaged-food label corpus, Survey (FNDDS) is as-consumed dishes. Authoritative USDA data covering ~400k foods — use real analyzed values instead of model-estimated nutrition facts.$0.003 Base330 ms1 payers100% up
  3. 922s.io/api/patents/searchSearch US patent applications and grants via the USPTO Open Data Portal. Query: q (required, 2+ chars), yearFrom / yearTo (optional filing-year bounds), applicationType (optional: Utility|Design|Plant|Reissue), limit (1-100, default 10), offset (0-based, default 0). Returns { total, returned, offset, limit, hits[{ applicationNumber, title, applicationType, firstInventor, inventors[], applicants[], filingDate, effectiveFilingDate, status:{ code, description, updatedAt }, cpcSymbols[], uspcSymbol, url }] }. URLs link to USPTO Patent Center for the public file wrapper.$0.0045 Base893 ms1 payers100% up
  4. 922s.io/api/predict/matched-pairsCross-venue equivalent-market pairs for arbitrage / relative-value spotting. We fuzzy-match open Polymarket vs Kalshi markets by title-token overlap and return candidate pairs with both venues' YES prices and the implied-probability spread (Polymarket YES minus Kalshi YES). Tune with minScore (0-1 title-similarity floor) and limit. Heuristic — a high score is a strong candidate, not a guaranteed identical contract. Read-only, keyless. No public source maps these directly; the pairing is derived by 2s.io.$0.012 Base731 ms1 payers100% up
  5. 922s.io/api/finance/thirteen-fParsed institutional holdings from a 13F-HR filing.$0.018 solana710 ms1 payers100% up
  6. 922s.io/api/person/cross-registrySweep a person's name across five US public registries in one call: FINRA securities brokers, federal-court attorneys (CourtListener), federal inmates (BOP), Texas trade licenses (TDLR), and Texas real-estate licenses (TREC). Returns one block per registry with found/error status, match count, and the matching records — name-matched CANDIDATES, deliberately not merged into one identity (same name does not mean same person; verify with each registry's identifier before acting). Due-diligence, KYC screening triage, and background-research staple. Each registry is also a standalone endpoint (/api/license/broker, /api/law/attorney-lookup, /api/gov/inmate-locator, /api/license/trades, /api/license/real-estate) for follow-up by identifier.$0.018 Base620 ms1 payers100% up
  7. 922s.io/api/sports/nba-playersNBA players from balldontlie - search by name and page...$0.012 Base772 ms1 payers100% up
  8. 922s.io/api/medical/drug-statusOne-call drug situational awareness. Give a drug name (resolved to a canonical RxCUI via NIH RxNorm), or an exact rxcui or ndc you already hold, and get back: whether it is currently in FDA shortage, any open or recent FDA recalls, and FDA NDC-directory metadata (labeler, DEA schedule, pharmaceutical class, marketing status). Returns a resolved identity block plus hasCurrentShortage / hasOpenRecall booleans and one found/error block per source (shortages, ndc, recalls). Composition of NIH RxNorm + OpenFDA drug-shortages, NDC directory, and recall enforcement — all free, public-domain US government data; each source degrades independently. Point-in-time public records, not medical advice. Use for pharmacy/supply-chain triage, prescribing-support agents, and verifying a drug is real, scheduled, and available before acting.$0.015 Base692 ms1 payers100% up
  9. 922s.io/api/crypto/coinFull coin profile by CoinGecko id (e.g. bitcoin, ethereum, solana). Returns price, market cap + rank, FDV, 24h volume, all-time high/low with dates, circulating/total/max supply, price changes (1h/24h/7d/30d/1y), categories, and official links (homepage, X, GitHub, subreddit). Richer than crypto.token-price (spot only) and crypto.markets (list row).$0.0036 Base639 ms1 payers100% up
  10. 922s.io/api/gov/usgs-waterReal-time water data from USGS NWIS stream / river / groundwater gauges within a bounding box around lat/lon. Returns each site's latest reading per requested variable: streamflow (00060, ft³/s), gage height (00065, ft), water temperature (00010, °C), precipitation (00045, in), and others. Each reading: site code + name, lat/lon, variable name + description + unit, value (or null if no data / sentinel), qualifier codes (e.g., 'P' = provisional, 'A' = approved), observed timestamp. Free public-domain data from waterservices.usgs.gov.$0.006 Base648 ms1 payers100% up
  11. 922s.io/api/business/id-resolveResolve a legal entity across identifier systems. Give exactly one of name, lei, cik, or ticker and get the others back: LEI (GLEIF), SEC CIK, ticker(s) with exchange, jurisdiction, and a canonical entity name. This is the COMPANY-ENTITY resolver: it joins the legal entity (LEI) to its SEC filer identity (CIK/ticker) and back. For SECURITIES (FIGI, ISIN, share-class identifiers) use finance.security-resolve instead -- this one deliberately stays at the legal-entity layer. Composes SEC company_tickers_exchange (public domain) + GLEIF (CC0). The SEC<->GLEIF link is by name-match when you anchor on ticker/cik (best-effort, flagged via bridge + leiName); a supplied LEI is authoritative. Per-source status is returned so a partial resolve is explicit. No CUSIP/SEDOL.$0.012 Base668 ms1 payers100% up
  12. 922s.io/api/domain/whoisModern WHOIS via RDAP. Query: domain (e.g. example.com). Returns { domain, ldhName, handle, registrar:{ name, ianaId, url, abuseEmail, abusePhone }, registeredAt, expiresAt, updatedAt, statuses (camelCase ICANN EPP codes), nameservers[], dnssecSigned, rdapUrl }. GDPR: registrant personal data is generally redacted upstream and not returned. Some TLDs without RDAP are not supported and return 404 TLD_NOT_SUPPORTED.$0.0025 Base464 ms1 payers100% up
  13. 922s.io/api/url/renderRender a URL in a real headless browser (JavaScript executed) and return its article content with the clutter stripped — same cleaning + output formats as /api/url/clean, but for client-rendered / SPA pages whose content only appears after JS runs (where a raw HTTP fetch returns an empty shell). `format`: markdown (default), text, both (JSON envelope), html (self-contained reader page, raw text/html), or pdf (typeset reading doc, raw application/pdf). Optional `waitUntil` (load|domcontentloaded|networkidle0|networkidle2, default networkidle2) and `timeoutMs` (1000-15000, default 12000) control how long to let JS settle. Use /api/url/clean instead for server-rendered pages — it is faster and cheaper; only reach for render when JS rendering is required.$0.015 Base560 ms1 payers100% up
  14. 92uk-company-check.fly.dev/v1/uk/company/:number/checkIs this UK company legit and safe to deal with? One-call due-diligence check from Companies House: profile, directors and their track record at other companies (phoenix-company check), beneficial owners (PSCs), charges, insolvency, overdue filings and risk flags, with a source link for every fact.$0.025 Base609 ms1 payers100% up
  15. 92uk-company-check.fly.dev/v1/uk/company/:numberOfficial UK company profile from Companies House by 8-character company number: name, status, type, SIC codes, registered office, and accounts / confirmation statement due dates.$0.005 Base601 ms1 payers100% up
  16. 92api.dexl.io/api/build-tx/sellBuilds unsigned transaction(s) to sell any token - DexL bonding curve, graduated DEX pair, or any other token with WETH liquidity on the chain's DEX router (including an approve step if needed)$0.005 Base680 ms1 payers100% up
  17. 92api.dexl.io/api/build-tx/buyBuilds an unsigned transaction to buy any token - DexL bonding curve, graduated DEX pair, or any other token with WETH liquidity on the chain's DEX router$0.005 Base699 ms1 payers100% up
  18. 92api.dexl.io/api/build-tx/create-tokenBuilds an unsigned transaction to launch a new token on the DexL launchpad (you sign it with your own wallet)$0.01 Base695 ms1 payers100% up
  19. 92skim402.com/api/v1/read/jsSkim: JS-rendered reader — full browser render via Cloudflare for SPAs and JS-gated pages, clean markdown ~4x smaller than raw HTML$0.005 Base611 ms1 payers100% up
  20. 92x402.fairseal.io/v1/notarizeAnchor an AI agent decision or audit record to Base mainnet. Submit {schema, payload_hash (SHA-256 hex, 64 chars), metadata}; service queues into a Merkle batch and returns a receipt with pending_anchor status immediately. Full Merkle proof and on-chain anchor_tx available via free GET /v1/notarize/:receipt_id after batch anchors (within batch_threshold receipts or 120s). Include Idempotency-Key header to prevent double-charges on retry.$0.02 Base582 ms1 payers100% up
  21. 92x402.fairseal.io/v1/pii/detectRegex PII scan: emails, US/CA (NANP) phones, dash-formatted national IDs (partial; Taiwan-format alphanumeric IDs not matched), loose passports, 64-hex crypto keys (may flag SHA-256), credit cards (contiguous IIN prefix + spaced/dashed 4-4-4-4 and 4-6-5, Luhn-checked), US SSNs, IPv4. Longest-match overlap resolution. Returns sanitized text. Max 50,000 chars. Expect false positives and misses; non-NANP phones not matched.$0.001 Base737 ms1 payers100% up
  22. 92stockwaves.net/api/xstock/healthIs this tokenized stock safe to buy, and am I overpaying? Pre-trade RWA check for an agent buying an on-chain US stock. BATCH: ?watch=NVDAx,TSLAx,... — up to 25 symbols or addresses in ONE call at one price, each ok/review/avoid + what changed since your last poll. Single: ?symbol= or ?address=. Answers AUTHENTICITY (real issuer token or IMPERSONATOR) plus liquidity, depeg_bps, and basis_bps — the gap to a LIVE quote of the underlying that no oracle sees off-hours.$0.03 solana514 ms1 payers100% up
  23. 92x402.fairseal.io/v2/anchorAnchor a SHA-256 payload hash (64 lowercase hex chars) into a Merkle batch on Base mainnet. Payment: $0.001 USDC per submission (batch-settled). Returns anchor_id (202); poll status_url for Merkle proof + on-chain tx hash.$0.001 Base573 ms1 payers100% up
  24. 92openworker.etips.me/api/services/agent_readiness_auditAudit an agent-facing service for machine usability. Actually calls the endpoints: MCP (Streamable HTTP initialize + tools/list, schema checks), A2A agent card, x402 payment challenge, llms.txt, OpenAPI, robots/agents metadata and endpoint health. Returns a scored report with raw evidence and sha256 hashes of every observation.$0.10 Base698 ms1 payers100% up
  25. 92402sentinel.com/api/assess/rwaRWA risk gate: score a TOKENIZED ASSET (treasury, stock, credit) BEFORE an agent buys it. POST {target:{payto_address:<token contract>, network:eip155:1|eip155:8453}} returns 0-100 risk, allow/review/block, is_permissioned_security and signals: proxy-aware transfer-restriction scan (ERC-1404/3643/allowlist/pause) with a behavioral transfer simulation, live pause state, issuer identity and issuer OFAC screening. Not investment advice.$0.02 Base888 ms1 payers100% up
  26. 92402sentinel.com/api/assess/deepIs this payment address safe to pay? DEEP version — deep counterparty assessment: same shape as /api/assess but scans more on-chain settlement history for higher confidence. POST {target:{payto_address}, payment_context?, policy?}. Returns risk_score 0-100, allow/review/block, confidence, per-dimension signals, key_factors and a recommended_policy. Use when the payment is large enough that a thin-data 'review' verdict is not good enough.$0.02 Base878 ms1 payers100% up
  27. 92api.fairseal.io/v1/notarizeAnchor an AI agent decision or audit record to Base mainnet. Submit {schema, payload_hash (SHA-256 hex, 64 chars), metadata}; service queues into a Merkle batch and returns a receipt with pending_anchor status immediately. Full Merkle proof and on-chain anchor_tx available via free GET /v1/notarize/:receipt_id after batch anchors (within batch_threshold receipts or 120s). Include Idempotency-Key header to prevent double-charges on retry.$0.02 Base731 ms1 payers100% up
  28. 92phion.systems/v1/paid/trust/price-discovery-engineReport price bands only from settled observations$0.005 Base606 ms1 payers100% up
  29. 92phion.systems/v1/paid/trust/x402-quote-comparatorNormalize and compare multiple x402 quotes$0.002 Base664 ms1 payers100% up
  30. 92phion.systems/v1/paid/trust/payment-receipt-reconcilerReconcile payment and receipt fields$0.003 Base654 ms1 payers100% up
  31. 92phion.systems/v1/paid/trust/duplicate-charge-detectorDetect duplicate charge fingerprints$0.003 Base643 ms1 payers100% up
  32. 92phion.systems/v1/paid/trust/subscription-spend-guardEnforce recurring period budgets$0.003 Base666 ms1 payers100% up
  33. 92phion.systems/v1/paid/trust/delivery-evidenceHash and attest supplied delivery evidence$0.003 Base653 ms1 payers100% up
  34. 92phion.systems/v1/paid/trust/concurrency-guardEnforce concurrent slot limits$0.002 Base653 ms1 payers100% up
  35. 92phion.systems/v1/paid/trust/resource-cycle-guardStop repeated execution nodes and step overruns$0.002 Base621 ms1 payers100% up
  36. 92phion.systems/v1/paid/trust/abandoned-tool-detectorAssess tool reachability and observation staleness$0.003 Base651 ms1 payers100% up
  37. 92phion.systems/v1/paid/trust/manifest-version-diffIdentify changed manifest fields and hashes$0.002 Base665 ms1 payers100% up
  38. 92phion.systems/v1/paid/trust/retention-deletion-receiptSign a declared retention or deletion action$0.003 Base646 ms1 payers100% up
  39. 92phion.systems/v1/paid/trust/portable-observability-auditValidate and sign a portable event hash chain$0.004 Base646 ms1 payers100% up
  40. 92geo.halowerk.com/v1/utm-mgrsConverts WGS84 latitude and longitude to MGRS using the open mgrs library. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base434 ms1 payers100% up
  41. 92geo.halowerk.com/v1/s2-cellCreates an S2 cell token from a coordinate and level using the S2 geometry library. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base444 ms1 payers100% up
  42. 92geo.halowerk.com/v1/polygon-opsCalculates planar polygon area and centroid in caller-declared coordinate units. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base458 ms1 payers100% up
  43. 92geo.halowerk.com/v1/point-in-polygonTests planar point containment with the even-odd rule. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base452 ms1 payers100% up
  44. 92geo.halowerk.com/v1/line-simplifySimplifies a planar line with the Ramer-Douglas-Peucker algorithm. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base461 ms1 payers100% up
  45. 92fracht.halowerk.com/v1/port-pairEstimates great-circle port distance and sailing time from supplied port coordinates and speed. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base442 ms1 payers100% up
  46. 92fracht.halowerk.com/v1/package-dimsCalculates volume, girth and chargeable weight from package dimensions. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base468 ms1 payers100% up
  47. 92fracht.halowerk.com/v1/leg-splitValidates and orders caller-supplied multimodal shipment legs. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base466 ms1 payers100% up
  48. 92dep.halowerk.com/v1/release-cadenceCalculates release intervals and inactivity from current registry timestamps. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base434 ms1 payers100% up
  49. 92dep.halowerk.com/v1/registry-healthSummarizes caller-supplied registry observations and withdrawal history. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base450 ms1 payers100% up
  50. 92dep.halowerk.com/v1/maintainer-concentrationMeasures the share held by the largest maintainer from supplied ownership weights. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base458 ms1 payers100% up
  51. 92dep.halowerk.com/v1/install-footprintTotals caller-measured installed file sizes and file counts. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.004 Base454 ms1 payers100% up
  52. 92material.halowerk.com/awg-metricUses the geometric AWG definition, so results are exact for solid round conductors. Mass per metre and resistance follow from the material density and resistivity at 20 degrees Celsius; stranded conductors carry roughly two to five percent more mass and resistance per metre than the same nominal size and are not modelled separately. Supply either awg or cross_section_mm2, not both. Sizes 4/0 through 40 AWG are covered.$0.001 Base446 ms1 payers100% up
  53. 92geo.halowerk.com/v1/geohashEncodes a coordinate as geohash or decodes a geohash to its bounding box. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. $0.003 Base451 ms1 payers100% up
  54. 92store.cryptotradecalc.com/api/weatherweather-forecast: Current temperature and precipitation for any city (by name or lat/lon), powered by Open-Meteo.$0.008 Base708 ms1 payers100% up
  55. 92datoka-api.bhazarstudio.workers.dev/v1/operations/issue_api_receiptDatoka API: a portable signed commitment to a client-declared API exchange for response handoffs, archived decision inputs and change investigations. 0.002 USDC per receipt; offline verification is free. Keep original bytes locally. Does not prove provider origin or content truth. Retry with the same event, idempotency key and original payment authorization.$0.002 Base806 ms1 payers100% up
  56. 92stockwaves.net/api/macro/indicatorOne macro datapoint, cheap: value + prior + delta + date for a single indicator, for agents that want a number rather than a report. Differentiated CHINA coverage in English: lpr, cn10y, sse, hsi, usdcny, a_share_turnover, a_share_breadth, northbound. Plus US/global: fed, us10y, us2y, us_yield_curve, us_cpi, us_unemployment, us_hy_spread, us_financial_stress, nasdaq, vix, gold, wti, usdjpy. Query ?name=lpr. Data reseller output, not investment advice.$0.003 Base773 ms1 payers100% up
  57. 92402sentinel.com/api/policySame input as /api/assess, but returns a trimmed action-oriented view: the allow/limit/deny decision plus a wallet-ready spending policy (max_payment_usdc per-counterparty cap, daily_cap_usdc, add_to_denylist, require_human_approval) an agent can apply directly to its wallet limits.$0.002 Base559 ms1 payers100% up
  58. 92402sentinel.com/api/firewallBuyer-side payment firewall: should THIS agent make THIS payment now? Where /api/assess vets the seller, this vets the payment against your own agent's behaviour. POST {agent_id, payment:{payto_address,amount,resource_url}, context?:{untrusted_text,intended}, policy?} returns allow/hold/block plus 9 signals incl. routing_anomaly, velocity, amount_anomaly, injection_destination, intent_mismatch. Stateful per agent_id.$0.002 Base816 ms1 payers100% up
  59. 92402sentinel.com/api/compliancePre-pay COMPLIANCE screen for regulated onchain flows. POST {target:{payto_address, agent_id?}, payment_context?:{amount,asset}} returns compliance_decision pass/flag/block, diligence_tier, obligations and checks: OFAC sanctions (hard block), counterparty due-diligence tier, structuring detection (sub-threshold payments aggregating within 24h, needs agent_id), FATF Travel-Rule threshold as informational. Screening support, not legal advice.$0.02 Base855 ms1 payers100% up
  60. 92402sentinel.com/api/assessAssess an x402 counterparty before paying. POST {target:{payto_address}, payment_context?, policy?}; payto may be a 0x EVM (Base) or base58 Solana seller. Returns risk_score 0-100, decision allow/review/block, confidence, coverage, per-dimension signals, key_factors (what drove the score) and a ready-to-apply recommended_policy. Scored from on-chain settlement behaviour, OFAC sanctions = hard block.$0.002 solana776 ms1 payers100% up
  61. 92mobilitychain.kr/api/intelKorean mobility and EV supply-chain intelligence, sold per query. Structured feed tracking Korea's automotive-electronics and robotics supply chain - batteries and battery materials, EV components, robot parts, actuators and reducers, semiconductors, and tier-1 suppliers to Hyundai/Kia - written from Korean primary reporting and DART filings English-language sources do not cover. Filter by date, category and keyword. Pay per query in USDC on Base or Polygon; empty results free.$0.137 Base681 ms1 payers100% up
  62. 92taskfleet.net/code-reviewReview code or a diff (up to 60k chars). Default output: guaranteed-valid JSON findings [{line, severity, issue, fix}]. Input: { code? | diff?, language?, focus?, format? ('json'|'text') }.$0.02 Base410 ms1 payers100% up
  63. 92verify.camelai.io/Verify if an email address is valid and likely deliverable. Send {"email": "user@example.com"}$0.005 Base737 ms1 payers100% up
  64. 92medien.halowerk.com/v1/keyframesTakes a video by URL or inline base64 and reports where the picture changes. FFmpeg measures the difference between consecutive frames; every jump above the threshold starts a new scene, and the answer lists each scene with start, end, duration and the fraction of the running time it covers, plus the raw detection score positions.$0.03 Base894 ms1 payers100% up
  65. 92seo.halowerk.com/v1/indexable-status-auditCall this endpoint before publishing or after changing a public page when you need to check whether its HTTP response status permits indexing. Returns the observed HTTP status, verdict, evidence source, limitations and a recommended action. This passive check does not confirm that a search engine has indexed the page.$0.001 Base957 ms1 payers100% up
  66. 92x402.coinstats.app/insights/fear-and-greed/chartCoinStats Fear & Greed Index historical chart — market sentiment over time$0.001 Base510 ms1 payers100% up
  67. 92x402.coinstats.app/tickers/exchangesCoinStats list of supported cryptocurrency exchanges with metadata$0.001 Base469 ms1 payers100% up
  68. 92aialign.halowerk.com/v1/capability-evalComputes weighted pass rates and weighted scores from caller-labeled test outcomes, with deterministic category summaries. It does not run tests, validate labels, measure untested capabilities or establish deployment safety; the result is only as representative as the supplied evaluation set.$0.003 Base635 ms1 payers100% up
  69. 92zoll.halowerk.com/v1/customs-valueCalculates customs value under the transaction-value method from disclosed additions and deductions. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice.$0.004 Base834 ms1 payers100% up
  70. 92zoll.halowerk.com/v1/cbam-scopeChecks a CN-code prefix against a caller-supplied extract of the published CBAM goods list. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice.$0.004 Base836 ms1 payers100% up
  71. 92quantum.halowerk.com/v1/entanglement-testConverts ++, +−, −+ and −− counts into a correlation for each of AB, AB′, A′B and A′B′, then computes S = E(AB) + E(AB′) + E(A′B) − E(A′B′). A value above the classical bound in supplied data does not by itself demonstrate entanglement or close detection, locality, sampling or significance loopholes.$0.004 Base515 ms1 payers100% up
  72. 92netz.halowerk.com/v1/prefix-visibilityReports the propagation of a prefix as the fraction of RIS observers that see it, separately for IPv4 and IPv6, because the absolute peer count moves with the size of the measurement network and is not comparable across time or between prefixes. The share is graded against stated thresholds, and — this is the part that makes the number mean something — compared against the other prefixes announced by the same origin AS.$0.004 Base463 ms1 payers100% up
  73. 92aialign.halowerk.com/v1/hallucination-rateTokenizes each claim and its supplied evidence, removes a small declared English stop-word list, and reports the fraction of unique claim tokens present in evidence. Coverage below a supplied threshold is flagged. This is lexical grounding screening only: overlap does not prove truth, low overlap does not prove hallucination, and the service does not retrieve or validate evidence.$0.004 Base459 ms1 payers100% up
  74. 92agri.halowerk.com/v1/vertical-farm-hvacAdds lighting, equipment, people, envelope and ventilation heat flows at one supplied operating point, and converts evapotranspiration into a latent moisture-removal load. It is a steady-state sizing estimate without duct losses, thermal mass, equipment curves, controls, infiltration uncertainty or psychrometric state validation.$0.004 Base473 ms1 payers100% up
  75. 92stat.halowerk.com/v1/carbon-intensityReturns carbon dioxide emissions for one or more countries on three bases at once: per inhabitant, per unit of purchasing-power-adjusted output, and in absolute megatonnes, each with its own period and its trend over the requested window. Keeping the three apart is the point. Per capita answers how heavily a person there burdens the climate; per unit of output answers how efficiently value is produced; absolute answers what actually reaches the atmosphere.$0.005 Base487 ms1 payers100% up
  76. 92solar.halowerk.com/off-grid-weather-alarmUses the nearest current DWD MOSMIX_L station forecast, or a station explicitly supplied by the caller. Global irradiance drives a transparent PV estimate and forecast wind speed drives a stated generic turbine curve; neither replaces a site-specific yield model. A constant hourly load and optional battery are simulated over 12 to 120 hours. The result is an installation-risk signal, not an official weather warning, emergency alert or guarantee of supply.$0.005 Base491 ms1 payers100% up
  77. 92quantum.halowerk.com/v1/portfolio-qaoaEnumerates every selection of exactly k assets for at most 16 assets, maximizing summed expected return minus a caller-selected covariance penalty. It runs no quantum circuit and provides a deterministic classical optimum for testing a corresponding binary QAOA or QUBO formulation; it is not investment advice and ignores transaction costs and allocation sizes.$0.005 Base510 ms1 payers100% up
  78. 92natur.halowerk.com/v1/climate-normalsReturns the German Weather Service reference-period values for the station nearest a coordinate: monthly means and annual totals for air temperature, precipitation and sunshine duration, plus the mean annual counts of frost days, ice days, summer days and hot days.$0.005 Base510 ms1 payers100% up
  79. 92karte.halowerk.com/v1/flood-riskReturns the pre-fetched GloFAS control forecast at the nearest model cell for a point in Europe. The result reports modelled river discharge, its peak and change over the requested horizon. It is deliberately not presented as a flood probability or warning because those require local river thresholds and the responsible national or regional authority. Every response carries the required CEMS attribution and warranty disclaimer.$0.005 Base527 ms1 payers100% up
  80. 92karte.halowerk.com/v1/air-qualityReturns hourly surface concentrations from the CAMS European air-quality ensemble for a point in the cached DACH and Central Europe area. Available pollutants are CO, NO2, NO, O3, PM2.5, PM10 and SO2. Values come from the nearest 0.1 degree model cell and are labelled as a regional forecast rather than a street-level sensor reading. The local cutout is refreshed independently of paid calls, so Copernicus processing latency is not passed to the caller.$0.005 Base485 ms1 payers100% up
  81. 92research.halowerk.com/v1/controversy-pulseTracks how much is written about an organisation and in what tone, comparing a recent window against the same term own longer baseline, and returns both the volume ratio and the tone shift with the articles behind them. The framing is fixed and repeated in the response: this is an attention signal and not a judgement. A tone drop means more negative language is being used, not that something happened, and a product recall, a lawsuit and a critical opinion piece produce the same deflection.$0.006 Base497 ms1 payers100% up
  82. 92natur.halowerk.com/v1/biodiversity-densityAssesses the recorded biodiversity of an area around a point: how many distinct species appear, how many records support them, how recent those records are, how many separate datasets contributed, and the breakdown by kingdom. The trap this service is built around is that record density measures observers, not organisms — a city park with heavy footfall carries more records than a roadless reserve and is not thereby richer.$0.006 Base476 ms1 payers100% up
  83. 92x402-agent-pay.com/x402/barter/offerx402 Barter — open a cashless trade. Pay only the flat call fee; your good is escrowed, not sold for USDC.$0.02 Base337 ms1 payers100% up
  84. 92x402-agent-pay.com/x402/barter/deliverx402 Barter — deposit your half of an accepted trade into escrow. Send deal_id, side ('give' or 'want') and the payload itself; the payload is hashed so either party can prove later what was delivered. Returns the deal status, whether both sides have now delivered, and the release state of the escrow. Nothing but the flat call fee is charged — the goods, not USDC, are what trade here.$0.02 Base348 ms1 payers100% up
  85. 92x402-agent-pay.com/x402/barter/acceptx402 Barter — accept an open trade. Pay only the flat call fee; escrow your counter-good, no USDC charged for value.$0.02 Base328 ms1 payers100% up
  86. 92staking.halowerk.com/v1/collateral-correlation-riskCollateral Correlation Risk analyses only the evidence supplied by the caller. It does not claim to query a chain, identify a legal status or replace an independent audit. Missing signals lower confidence and are listed explicitly; every classification includes the exact thresholds used.$0.001 Base482 ms1 payers100% up
  87. 92staking.halowerk.com/v1/borrow-curve-stress-testBorrow-Curve Stress Test analyses only the evidence supplied by the caller. It does not claim to query a chain, identify a legal status or replace an independent audit. Missing signals lower confidence and are listed explicitly; every classification includes the exact thresholds used.$0.001 Base895 ms1 payers100% up
  88. 92lauf.halowerk.com/v1/browser-taskLoads one https page in a real headless browser and performs up to eight steps on it: click, fill, select, check, uncheck, wait, wait_for_selector. Returns a per-step log saying what was attempted and whether it succeeded, plus the final URL, title, visible text, links, form structure and an optional screenshot as a base64 PNG. Three limits are part of the product, not accidents.$0.016 Base773 ms1 payers100% up
  89. 92pay.brianbooms.com/api/v1/buy/agent-wallpaper-golden-godraysAgent Wallpaper — Golden Godrays ($0.05 USDC on Base, Polygon, Arbitrum, or Avalanche via x402). Machine purchase: one cosmic wallpaper JPG (16:9). Download URL returned in the settlement response, instantly. For agent use. Music made with Suno — disclosed. Automatic fulfillment after settlement. Pay to 0xa98e8c6cbc64b7bb30fd0d2015ab24814c661839.$0.05 Base375 ms1 payers100% up
  90. 92allooloo.io/apiOne paid call on allooloo.io for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://allooloo.io/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.$0.01 Base442 ms1 payers100% up
  91. 92kyp-model.ai/apiOne paid call on kyp-model.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://kyp-model.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.$0.01 Base619 ms1 payers100% up
  92. 92cm-record.io/apiOne paid call on cm-record.io for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://cm-record.io/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.$0.01 Base738 ms1 payers100% up
  93. 92cm-record.ai/apiOne paid call on cm-record.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://cm-record.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.$0.01 Base740 ms1 payers100% up
  94. 92cm-kg.org/apiOne paid call on cm-kg.org for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://cm-kg.org/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.$0.01 Base769 ms1 payers100% up
  95. 92cm-kg.io/apiOne paid call on cm-kg.io for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://cm-kg.io/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.$0.01 Base985 ms1 payers100% up
  96. 92capitalmarketsknowledgegraph.org/apiOne paid call on capitalmarketsknowledgegraph.org for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://capitalmarketsknowledgegraph.org/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.$0.01 Base843 ms1 payers100% up
  97. 92capitalmarketsknowledgegraph.ai/apiOne paid call on capitalmarketsknowledgegraph.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://capitalmarketsknowledgegraph.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.$0.01 Base896 ms1 payers100% up
  98. 92us-cm-kg.ai/apiOne paid call on us-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://us-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.$0.01 Base949 ms1 payers100% up
  99. 92uk-cm-kg.ai/apiOne paid call on uk-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://uk-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.$0.01 Base827 ms1 payers100% up
  100. 92138-197-9-7.sslip.io/v1/uk_company_counterparty_preflightUK Companies House company-level counterparty preflight: status, RO, accounts/confirmation overdue → NORMAL|REVIEW|NOT_FOUND$0.01 Base815 ms1 payers100% up