x402watch

52,953 paid endpoints are listed. 27,123 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 2026-10-05 06:00 UTC · 52,953 probed

27,123 answering 40219,794 down5,154 rejecting882 no paywall1,829 price drift
  1. 92markt.halowerk.com/fundingReads the public perpetual data of Binance USDⓈ-M Futures, Bybit linear and OKX swaps for one BASE/QUOTE pair. Settlement intervals differ per exchange and per contract, so annualized_pct is only computed after normalising to the interval that exchange actually uses, and the formula is part of the answer. current_rate and predicted_rate are strictly separate: where an exchange publishes no forecast, predicted_rate stays null and the reason is named instead of reusing the current rate. next_settl$0.002 Base706 ms1 payers100% up
  2. 92markt.halowerk.com/tradesReturns the raw public trade tape of Binance, Coinbase, Kraken, OKX or Bybit for one BASE/QUOTE pair, oldest first, exactly as the exchange reports it — no smoothing, no merging of prints. side is the side of the aggressor: reported directly by Kraken, OKX and Bybit, derived from the maker flag at Binance, and inverted from the maker side at Coinbase; side_source names which case applies. Where an exchange does not publish it, side is "unbekannt" and side_inferred stays false rather than guessin$0.002 Base734 ms1 payers100% up
  3. 92x402.halowerk.com/facilitator/healthAsks every known facilitator what it supports and measures how long that answer takes. Reachability, supported chains, supported assets, supported schemes and the current response time are measured live on every call. Limits, and they are the important part: error rate over 24 hours, uptime over 7 days and latency percentiles CANNOT be delivered. They require a series of own measurements every few minutes, and this service keeps no such series - a single call cannot produce a p95. Those fields s$0.003 Base757 ms1 payers100% up
  4. 92seo.openverbs.com/v1/referring-domainsList the domains linking to a target, each with DataForSEO domain rank, number of backlinks, dofollow count, referring subdomains, broken backlinks, spam score and first/last seen dates. For backlink audits and link building. Unknown domain returns empty results.$0.05 Base427 ms1 payers100% up
  5. 92edgar.openverbs.com/v1/financialsOne-call financial snapshot for a US public company (by CIK or ticker), from its as-filed SEC XBRL statements: revenue, cost of revenue, gross profit, operating income, net income, EPS (basic/diluted), total assets, total liabilities, stockholders equity, cash, operating cash flow and shares outstanding. Each line item gives the latest full fiscal year and the latest reported value. Unknown company returns found=false.$0.008 Base434 ms1 payers100% up
  6. 92api.eucompliance.tools/x402/perpsPerpetual futures market data from the Hyperliquid public API: mark and oracle price, hourly and annualised funding rate, open interest, 24h volume and max leverage per market, sorted by volume. Query: coin (optional, e.g. BTC) or top=N. Source and timestamp in every answer, 10 s cache. $0.005 per call, signed receipt included.$0.005 Base918 ms1 payers100% up
  7. 92forwardlane.pay.zeroclick.io/api/tiersRepositories grouped by quality tier with counts.$0.05 Base373 ms1 payers100% up
  8. 92402.com.tr/api/x402/wallet-nftsLists the NFT collections a Base wallet holds — name, count and floor value — spam-filtered, via Covalent. For agents profiling a wallet's NFT exposure.$0.02 Base459 ms1 payers100% up
  9. 92402.com.tr/api/x402/token-approvalsLists a wallet's active token approvals — which contracts can spend its tokens, the allowance, USD value at risk and a risk factor (revoke.cash-style). Essential wallet-security check for agents and users.$0.02 Base685 ms1 payers100% up
  10. 92402.com.tr/api/x402/file-convertConvert between the shapes data actually arrives in: CSV or TSV to JSON, JSON to CSV or TSV, CSV to a Markdown table, Markdown to HTML. Proper RFC 4180 parsing — quoted fields, embedded commas and newlines, doubled quotes — so a spreadsheet exported by a human does not silently come apart. Numbers and booleans get real types (turn it off with typed=false). No model call and no upstream: local parsing only.$0.005 Base496 ms1 payers100% up
  11. 92402.com.tr/api/x402/company-leiLook a company up in GLEIF, the global Legal Entity Identifier register: LEI code, registered legal name, entity status, registration status, jurisdiction and address. The register's own name filter is a token search that returns thousands of unrelated rows, so matches are re-checked here and only an exact one — or one differing solely in legal form (Inc/Ltd/GmbH) — is reported as found; the rest come back as candidates.$0.005 Base499 ms1 payers100% up
  12. 92402.com.tr/api/x402/base-block🆕 One block on Base — height, hash, parent, timestamp and age in seconds, transaction count, gas used against the limit, and the base fee in gwei. Takes a block number, a 0x… block hash, or latest / finalized / safe / earliest. A block that isn't mined yet answers found:false with the reason rather than an error. Raw chain data, no interpretation.$0.002 Base494 ms1 payers100% up
  13. 92402.com.tr/api/x402/onramp-coverage🆕 The feasibility check before you ask a user for money: which fiat-in and cash-out rails Coinbase actually runs in a country, the currencies and min/max limits for each, and how many assets across which networks. Distinguishes a country with card rails from one where crypto can only be transferred in — a difference most integrations discover only after a user fails. 122 countries covered.$0.02 Base964 ms1 payers100% up
  14. 92402.com.tr/api/x402/onramp-quote🆕 Prices the same fiat purchase across EVERY payment method a country allows, and ranks them by what the buyer actually receives. On $100 in the US the spread is real: card takes 2.44, bank transfer 0.50, a funded fiat wallet nothing. Returns each rail's fee, net amount, min/max limits, and the cheapest one. Live Coinbase pricing, not a rate card. Pass address= for a payable checkout link. Not financial advice.$0.03 Base914 ms1 payers100% up
  15. 92402.com.tr/api/x402/token-supply🆕 totalSupply for any Base token, returned raw and scaled by its decimals, alongside the name and symbol. When a contract doesn't declare decimals the answer assumes 18 and marks that it assumed — a silent guess here quietly moves every downstream number by orders of magnitude. Non-token addresses answer found:false.$0.002 Base873 ms1 payers100% up
  16. 92402.com.tr/api/x402/url-extractPass a URL and get the page as clean text — furniture (nav, scripts, ads, footers) stripped, paragraphs preserved — plus its title, description and site name. The step every agent needs before it can reason about a page, and the one most agents can't do themselves: serverless runtimes and MCP clients have no browser and no HTML parser. Follows redirects safely, refuses non-text content, caps at 2 MB. Nothing crypto about it.$0.002 Base796 ms1 payers100% up
  17. 92402.com.tr/api/x402/counterparty-checkOne call, four public sources: how old the domain is (RDAP), whether mail to the contact will land (DNS), whether the name is on the OFAC list, and whether the company exists in the global LEI register. Returns a single GO / HOLD / STOP with every signal that produced it. Built for the moment an agent has to trust an invoice, a new vendor or a payment-detail change — the classic fraud pattern is a real-looking name on a domain registered weeks ago.$0.12 Base844 ms1 payers100% up
  18. 92402.com.tr/api/x402/sanctions-nameSanctions screening for NAMES, not wallets. Pass a person or company; get GO / HOLD / STOP against the official U.S. Treasury OFAC SDN export, including a.k.a. aliases. Conservative by design: only a full-name match is a hit. Screening aid, not a compliance determination.$0.05 Base729 ms1 payers100% up
  19. 92402.com.tr/api/x402/ai-wallet-securityPulls a wallet's active token approvals and Claude writes a security audit: overall risk level, USD at risk, and concrete revoke recommendations (which token/spender and why). The wallet-safety check agents and users run before trusting an address.$0.06 Base811 ms1 payers100% up
  20. 92402.com.tr/api/x402/wallet-activityThe latest transactions for a Base address — hash, time, from/to, ETH value, success — via Covalent. For agents tracking what a wallet is doing.$0.03 Base758 ms1 payers100% up
  21. 92402.com.tr/api/x402/token-momentumPrice change and trading volume across 1h, 6h and 24h windows for a Base token, plus a trend read (strong_up → strong_down). Lets agents gauge momentum, not just a single 24h number.$0.02 Base787 ms1 payers100% up
  22. 92402.com.tr/api/x402/token-compareAgents choose between tokens, not around them. Pass 2-5 Base token addresses → each gets a 0-100 quality score (safety-weighted: rug score first, then liquidity depth, then momentum), ranked best-first, with a named pick — or an honest 'none pass the gate'. One call returns a decision instead of a dozen data dumps.$0.05 Base804 ms1 payers100% up
  23. 92402.com.tr/api/x402/position-healthThe post-trade check everything else skips: given a token, your position size and (optionally) entry price, returns live price & P&L, whether the position can still be EXITED at that size, and the token's current rug score — combined into a healthy / watch / exit_now verdict with reasons. The risk that changes after you buy is exactly the risk holders miss.$0.04 Base712 ms1 payers100% up
  24. 92402.com.tr/api/x402/volume-checkReads the deepest pool's 24h volume, buy/sell counts, liquidity and price move, and scores how organic the activity looks. Volume 10x+ the pool's liquidity, near-perfect buy/sell symmetry, or big volume that moves the price nowhere are the classic wash-trading signatures used to bait buyers. Returns a 0-100 suspicion score and verdict.$0.02 Base769 ms1 payers100% up
  25. 92402.com.tr/api/x402/token-unlockTurns raw LP-lock data into a forward calendar: each unlock with its date, the % of LP it frees, the locker (UNCX / Team Finance labelled), and days away — flagging imminent unlocks (<30 days). An LP unlock is a scheduled price event: the moment a rug becomes possible. For agents managing open positions.$0.02 Base691 ms1 payers100% up
  26. 92402.com.tr/api/x402/deployer-repProfiles the token's creator wallet: how much history it has, how much of the supply the creator still holds, and whether ownership is renounced — rolled into a 0-100 reputation score with signals. A fresh wallet holding 20% of supply with no renounce is the classic rug setup; this is the forensics layer other checks skip.$0.04 Base670 ms1 payers100% up
  27. 92402.com.tr/api/x402/holiday-calendarList public holidays for country= + year= from Nager.Date (~110 countries). Marks national vs regional entries. Same source business-days uses — for agents that need the raw calendar.$0.002 Base642 ms1 payers100% up
  28. 92x402-factory.com/v1/edgar/13f/:cik/diffQuarter-over-quarter 13F position changes for an institutional manager — Parses a fund's 13F-HR information tables and diffs the latest quarter against the prior one: new positions, exits, increases, decreases (with share deltas), and the change in top-10 concentration. CIKs may be zero-padded or not.$0.05 Base447 ms1 payers100% up
  29. 92x402-factory.com/v1/contracts/awardsFederal contract awards from USAspending, normalized and filterable — Recent US federal contract awards (USAspending.gov) as clean records: vendor, awarding agency/sub-agency, value, NAICS, start date, and place of performance. Sorted by value. Filter by vendor, agency, NAICS, minimum value, or date.$0.02 Base386 ms1 payers100% up
  30. 92x402-factory.com/v1/edge/weather-marketsModel-vs-market divergence across every parseable weather prediction market — Compares our weather model's event probability with the market-implied probability for every weather-linked prediction market we can parse, ranked by divergence with direction, model confidence (from ensemble spread), and market liquidity. parse_coverage reports how much of the weather catalog is covered. Signals are…$0.15 Base380 ms1 payers100% up
  31. 92x402-factory.com/v1/econ/dashboardUS macro dashboard: every tracked series' latest print in one call — All tracked US economic series in one response: the latest headline print (with its date and a revised flag) plus each series' next scheduled release date. The one-call state of the US economy for agents that would otherwise fan out fifteen reads.$0.03 Base368 ms1 payers100% up
  32. 92x402-factory.com/v1/recalls/deviceLatest medical device recalls (FDA/USDA/CPSC normalized) — Latest medical device recalls across FDA, USDA FSIS, and CPSC in one normalized schema, with severity classing and product details. Same shape as /v1/recalls, pre-filtered to the device category.$0.01 Base303 ms1 payers100% up
  33. 92agents.forwardlane.com/zcj/8cwhu3wyj3lo/api/embeddings/searchCosine-similarity search over function embeddings.$0.05 Base436 ms1 payers100% up
  34. 92agent.apiguru.app/agent/v1/searchSearch Amazon products by keyword$0.003 Base623 ms1 payers100% up
  35. 92stableproduct.dev/api/channel3/product-detailGet Channel3 v1 product detail by product_id.$0.01 Base316 ms1 payers100% up
  36. 92enrichx402.com/api/exa/contentsExa Contents - Retrieve content from URLs$0.002 Base406 ms1 payers100% up
  37. 922s.io/api/security/http-headersFetch a URL and grade its HTTP security headers. Pass url (scheme optional — defaults to https). Returns an overall letter grade + score, the list of present/missing headers, and a per-header analysis with the live value and specific issues for: Strict-Transport-Security (HSTS max-age/includeSubDomains), Content-Security-Policy (flags 'unsafe-inline'/'unsafe-eval'/missing default-src), X-Frame-Options or CSP frame-ancestors (clickjacking), X-Content-Type-Options (nosniff), Referrer-Policy, Permissions-Policy, and Cross-Origin-Opener/Resource-Policy. Also flags Server/X-Powered-By info disclosure. Analyzed from the target's LIVE response headers through an SSRF-guarded fetch (private/loopback targets refused) — an LLM cannot see a site's current headers. For web-app security review, vendor assessment, and CI gates.$0.0045 Base391 ms1 payers100% up
  38. 922s.io/api/license/brokerFINRA BrokerCheck lookup - every US registered broker /...$0.003 Base503 ms1 payers100% up
  39. 92api.apify.com/v2/acts/:actorId/run-syncApify Store is the largest marketplace of tools for AI agents. Extract data from any website and automate your workflows with thousands of scrapers, crawlers, and automation tools called Actors.$1.00 Base359 ms1 payers100% up
  40. 922s.io/api/word/relatedRelated-word lookup via Datamuse. Supply a seed word and a relation kind: rhymes, near-rhymes, synonyms, antonyms, means (semantic match), triggers (associated by usage), homophones, sounds-like (phonetic neighbour), spelled-like (typo / wildcard), follows-from (words that come after), preceded-by (words that come before). Returns ranked candidates with relevance score, syllable count, and grammatical tags. Useful for content generation, rhyme/poetry, vocabulary expansion, and naming agents.$0.003 Base824 ms1 payers100% up
  41. 922s.io/api/crypto/address-validateValidate a cryptocurrency address with full checksum verification (not just regex). Returns {chain, address, valid, canonical, format, reason}. Chains: btc (P2PKH, P2SH, Bech32 SegWit v0, Taproot Bech32m), eth (full EIP-55 checksum; non-checksummed flagged), sol (Ed25519 32-byte Base58), ltc (Base58Check L.../M.../3... + ltc1 Bech32), trx (T-prefix Base58Check 0x41), xrp (r-prefix custom Base58), bch (legacy Base58Check + bitcoincash:q... CashAddr). Catches typos via cryptographic checksum; canonical field returns the checksummed/lowercased form.$0.0025 Base910 ms1 payers100% up
  42. 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
  43. 922s.io/api/patents/searchSearch US patent applications and grants via the USPTO Open...$0.0045 solana796 ms1 payers100% up
  44. 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 Base709 ms1 payers100% up
  45. 922s.io/api/finance/thirteen-fParsed institutional holdings from a 13F-HR filing.$0.018 solana555 ms1 payers100% up
  46. 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 Base532 ms1 payers100% up
  47. 922s.io/api/sports/nba-playersNBA players from balldontlie - search by name and page...$0.012 Base670 ms1 payers100% up
  48. 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 Base536 ms1 payers100% up
  49. 922s.io/api/crypto/coinFull coin profile by CoinGecko id (e.g.$0.0036 Base489 ms1 payers100% up
  50. 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 Base531 ms1 payers100% up
  51. 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 Base581 ms1 payers100% up
  52. 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 Base350 ms1 payers100% up
  53. 922s.io/api/url/renderRender a URL in a real headless browser (JavaScript...$0.015 Base389 ms1 payers100% up
  54. 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 Base621 ms1 payers100% up
  55. 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 Base618 ms1 payers100% up
  56. 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
  57. 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
  58. 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
  59. 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 Base676 ms1 payers100% up
  60. 92x402.fairseal.io/v1/veo/verifyVerify AI agent outputs against a VEO-2 schema. Checks structural validity, SHA-256 hash integrity (if content hash is present), and optional cryptographic signature on the output (if proof.provider_signature is present). Returns a verdict with per-check details.$0.002 Base540 ms1 payers100% up
  61. 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 Base533 ms1 payers100% up
  62. 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 Base702 ms1 payers100% up
  63. 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
  64. 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 Base720 ms1 payers100% up
  65. 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 Base798 ms1 payers100% up
  66. 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 Base861 ms1 payers100% up
  67. 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 Base696 ms1 payers100% up
  68. 92taskfleet.net/scrapeScrape any website to clean Markdown, text, or structured JSON. Renders JavaScript/SPA pages with headless Chromium (captures content raw-fetch scrapers miss), handles PDFs, optional schema-driven extraction. Input: { url, format? (markdown|text|html), links? (bool), fields? OR schema? }.$0.02 Base669 ms1 payers100% up
  69. 92phion.systems/v1/paid/trust/price-discovery-engineReport price bands only from settled observations$0.005 Base454 ms1 payers100% up
  70. 92phion.systems/v1/paid/trust/x402-quote-comparatorNormalize and compare multiple x402 quotes$0.002 Base546 ms1 payers100% up
  71. 92phion.systems/v1/paid/trust/payment-receipt-reconcilerReconcile payment and receipt fields$0.003 Base623 ms1 payers100% up
  72. 92phion.systems/v1/paid/trust/duplicate-charge-detectorDetect duplicate charge fingerprints$0.003 Base599 ms1 payers100% up
  73. 92phion.systems/v1/paid/trust/subscription-spend-guardEnforce recurring period budgets$0.003 Base620 ms1 payers100% up
  74. 92phion.systems/v1/paid/trust/delivery-evidenceHash and attest supplied delivery evidence$0.003 Base565 ms1 payers100% up
  75. 92phion.systems/v1/paid/trust/concurrency-guardEnforce concurrent slot limits$0.002 Base620 ms1 payers100% up
  76. 92phion.systems/v1/paid/trust/resource-cycle-guardStop repeated execution nodes and step overruns$0.002 Base595 ms1 payers100% up
  77. 92phion.systems/v1/paid/trust/abandoned-tool-detectorAssess tool reachability and observation staleness$0.003 Base577 ms1 payers100% up
  78. 92phion.systems/v1/paid/trust/manifest-version-diffIdentify changed manifest fields and hashes$0.002 Base627 ms1 payers100% up
  79. 92phion.systems/v1/paid/trust/retention-deletion-receiptSign a declared retention or deletion action$0.003 Base625 ms1 payers100% up
  80. 92phion.systems/v1/paid/trust/portable-observability-auditValidate and sign a portable event hash chain$0.004 Base617 ms1 payers100% up
  81. 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
  82. 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 Base926 ms1 payers100% up
  83. 92stockwaves.net/api/portfolio/optimizeStateless portfolio optimizer — bring your own signals, get risk-constrained weights. POST {assets:[{symbol,target,confidence?,vol?,regime?}], config?} → optimized portfolio targets via inverse-vol weighting, confidence/conviction scaling, same-family correlation penalty, gross/net + per-symbol caps, regime haircut. Pure compute, no account data.$0.05 Base381 ms1 payers100% up
  84. 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 Base738 ms1 payers100% up
  85. 92stockwaves.net/api/macro/allocationCross-asset ETF tactical allocation (QQQ/IWM/SPY/TLT/DBC/GLD): per-ETF signal, recommended position, confidence, direction, and market regime.$0.10 Base755 ms1 payers100% up
  86. 92stockwaves.net/api/cn/themesChina industrial-theme momentum: which Chinese tech/industrial narratives (AI compute, semiconductor localization, robotics, defense, new energy) are heating up — aggregate rotation strength + per-Shenwan-board rotation score, rank, trend, lifecycle phase (emerging/sustained/fading), English-labeled. Quant structure, no news text. What China is betting on in tech, for global investors' agents. Query: ?tag=ai|semi|robot|defense|new_energy (optional filter).$0.06 Base756 ms1 payers100% up
  87. 92stockwaves.net/api/cn/briefChina market daily brief — one call returns a synthesized snapshot of today's China: social pulse (Weibo/Baidu/Douyin top trends + finance buzz), market events (type distribution + top by mentions), critical/high risk alerts, hot industrial themes, and top sector rotation. English-labeled overview; full data lives in the dedicated endpoints. Query: ?top=5 (items per hot-search board, 1-10).$0.08 Base710 ms1 payers100% up
  88. 92stockwaves.net/api/btc/signalReal-time BTC/USDT directional signal (RL model): position lean, conviction, risk flags. 1h bars, updated ~every 12s.$0.03 Base689 ms1 payers100% up
  89. 92stockwaves.net/api/anomalies/insightBlind-spot / anomaly insight: which boards & setups the system keeps missing. Query: ?days=7$0.05 Base719 ms1 payers100% up
  90. 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 Base497 ms1 payers100% up
  91. 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 Base766 ms1 payers100% up
  92. 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 Base797 ms1 payers100% up
  93. 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 solana770 ms1 payers100% up
  94. 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 Base697 ms1 payers100% up
  95. 92verify.camelai.io/Verify if an email address is valid and likely deliverable. Send {"email": "user@example.com"}$0.005 Base771 ms1 payers100% up
  96. 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
  97. 92seo.halowerk.com/v1/title-present-auditTitle present audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.$0.001 Base992 ms1 payers100% up
  98. 92x402.coinstats.app/insights/fear-and-greed/chartCoinStats Fear & Greed Index historical chart — market sentiment over time$0.001 Base510 ms1 payers100% up
  99. 92x402.coinstats.app/tickers/exchangesCoinStats list of supported cryptocurrency exchanges with metadata$0.001 Base469 ms1 payers100% up
  100. 92pathcoursehealth.com/v1/chat/completionsInstruction-tuned mixture-of-experts model for high-volume work: classification, extraction, summarisation, routing and short chat. Chosen when throughput and cost matter more than depth of reasoning. OpenAI-compatible; streaming supported.$0.002 Base567 ms1 payers100% up