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. 100quantum.halowerk.com/v1/error-correctionTreats a caller-supplied odd-length bit word as a classical repetition code, majority-decodes one logical bit, and reports the corrected word and adjacent XOR syndrome. This narrow demonstration is not a surface-code simulation and does not model coherent quantum errors, measurements or fault-tolerant thresholds.$0.003 Base164 ms5 payers100% up
  2. 100x402-seller.onrender.com/ocean/tidesU.S. coastal tide data from NOAA — when's the next high or low tide, or what's the water level right now: high/low tide predictions for the next 48 hours (product=predictions, default), or the latest observed water level (product=water_level). Identify the location by NOAA CO-OPS station ID, or just pass lat+lng and the nearest station is used automatically (distanceKm in the response says how far it is). Heights in feet above MLLW datum, times in GMT.$0.001 Base106 ms5 payers100% up
  3. 100x402-seller.onrender.com/space/asteroidsNear-Earth asteroids (NEOs) making their closest approach to Earth on a given date (default: today), sorted by distance -- also called close-approach or flyby data. Includes each asteroid's estimated size, relative velocity, and miss distance. Sourced from NASA JPL's Near Earth Object Web Service (NeoWs).$0.001 Base114 ms5 payers100% up
  4. 100keyronne.com/api/weatherCurrent conditions plus hourly and daily forecasts for anywhere on Earth. Pass a major city name or lat/lon coordinates; get temperature, wind, humidity, pressure, cloud cover, condition codes and precipitation, with up to 90 hourly and 10 daily entries. Data from MET Norway (CC BY 4.0). No API keys, one call. POST a JSON body like: {"city":"paris","hourly":12,"days":3}$0.005 Base97 ms5 payers100% up
  5. 100keyronne.com/api/email-validateValidate email addresses: RFC-style syntax checks, IDN domain normalization, live MX lookups with A/AAAA fallback (DNS-over-HTTPS), disposable-domain detection, role-address detection (info@, support@), free-provider flagging, and typo suggestions for popular providers (gmial.com -> gmail.com). Single address or batches up to 50. POST a JSON body like: {"emails":["ada@example.com","bad@mailinator.com","typo@gmial.com"]}$0.003 Base69 ms5 payers100% up
  6. 100x402.tbs-digital.com/weather/nowCurrent weather right now, cheap: temperature, feels-like, humidity, wind speed and direction, pressure, cloud cover, precipitation, UV, day/night — plus a live air-quality snapshot (AQI, PM2.5) and today’s high/low. City or lat/lon. The budget "weather now" call.$0.001 Base193 ms5 payers100% up
  7. 100agentreader.dev/linksExtract every hyperlink on a web page as structured JSON: resolved absolute URL, anchor text, internal-vs-external classification and nofollow flag, up to 2000 unique links. The building block for agent crawlers that need to decide where to go next, plus broken-link sweeps, backlink and SEO analysis, and site mapping.$0.005 Base56 ms5 payers100% up
  8. 100opendata402.com/v1/nl/collection-costsDutch statutory extrajudicial collection costs (buitengerechtelijke incassokosten, WIK scale, Besluit vergoeding voor buitengerechtelijke incassokosten art. 2): 15/10/5/1/0.5% over the principal in brackets, minimum EUR 40, maximum EUR 6,775, optional 21% VAT when the creditor cannot reclaim VAT. Use it to compute the legally allowed collection fee on a Dutch claim.$0.001 Base153 ms5 payers100% up
  9. 100opendata402.com/v1/school-holidays/nlOfficial Dutch school holiday dates per school year and region (north, middle, south) from the Dutch central government: autumn, Christmas, spring, May and summer holidays with start and end dates. Use it for travel, staffing, pricing or scheduling around Dutch school breaks.$0.001 Base168 ms5 payers100% up
  10. 100gaming.halowerk.com/v1/economy-sink-simIterates a deterministic daily stock-flow model with a fixed source, fixed sinks, and percentage-of-current-supply sinks. It clamps supply at zero and reports each day; it does not model player adaptation, market prices, distribution, or causal behavior.$0.004 Base153 ms5 payers100% up
  11. 100stormap.ai/x402/v1/ai_visibility_scoreUse when the question is how well ChatGPT, Claude, Perplexity and Gemini can find, read and cite a web page: 0-100 score, letter grade, pass/fail checks (answer-bot access in robots.txt, server-rendered text, title and meta, JSON-LD, canonical, llms.txt, sitemap) and a prioritized fix list with points per fix. Blocking training crawlers does not lower the score. Errors: 400 bad_input, 502 site unreachable. Failed calls are not charged.$0.01 Base193 ms5 payers100% up
  12. 100agent.pocket.network/v1/pii-redactionDetect and redact PII in text: find and mask names, addresses, SSNs, emails, and phone numbers. POST /v1/pii with {text} and get findings and masked output as one JSON object. Deterministic per ruleset version. Pay per request in USDC; no account, no API key.$0.005 Base144 ms5 payers100% up
  13. 100api.solenrich.com/entrypoints/new-tokens/invokeRecently launched tokens from DexScreener, filtered by liquidity and risk, ranked safest first.$0.012 Solana91 ms5 payers100% up
  14. 100agent.pocket.network/v1/kavaRead-only access to Kava mainnet, the Cosmos and EVM co-chain: the CometBFT RPC (as JSON-RPC or GET routes such as /status and /block) and the Cosmos SDK LCD (GET /cosmos/... and the chain's own modules). Served by the Pocket Network decentralised supplier set. Pay per request in USDC; no account, no API key.$0.005 Base142 ms5 payers100% up
  15. 100mart402.com/v1/jp-consumption-taxJapan consumption tax: per-rate invoice rounding (one rounding per rate), qualified invoice (T+13) field validation, simplified taxation, 20-percent special (taxable periods that include a day 2023-10-01..2026-09-30). $0.01/call.$0.01 Base141 ms5 payers100% up
  16. 100api.macaroonnetwork.com/execute/polymathica-archive-search-v1Search a privacy-safe metadata index derived from 77,053 archived census rows and deduplicated to 23,370 unique content hashes. Includes readiness, quarantine, domain, file type, field names and provenance hashes; does not redistribute raw fields, media or third-party content.$0.002 Base208 ms5 payers100% up
  17. 100agent.pocket.network/v1/us-macroUS macroeconomic time series as stable JSON: CPI, unemployment, payrolls, GDP, and rates, with alias sets. POST /v1/us with a {series} and get the observations as one JSON object. Deterministic per source vintage. Pay per request in USDC; no account, no API key.$0.005 Base140 ms5 payers100% up
  18. 100agent.pocket.network/v1/treasury-fiscal-dataUS Treasury yields, debt, and fiscal series as stable JSON from FiscalData. POST /v1/treasury with a {series} (e.g. debt_to_penny) and get the observations as one JSON object. Deterministic per data vintage. Pay per request in USDC; no account, no API key.$0.005 Base142 ms5 payers100% up
  19. 100apiacre.com/v1/data/place-geocodeGlobal place geocode$0.002 Base215 ms5 payers100% up
  20. 100api.macaroonnetwork.com/execute/polymathica-research-paper-search-v1Research Paper Search$0.001 Base199 ms5 payers100% up
  21. 100vaaya.ai/api/run/fal/generateGenerate or edit images, video, music, and speech via fal.ai. Pass `model` (one of the registered keys) plus the model-specific params (prompt, image_url, aspect_ratio, duration, text, etc.).$0.40 Base210 ms5 payers100% up
  22. 100netintel.dev/text/chunkSplit text into overlapping chunks for RAG ingestion — by characters or words, with configurable chunk size and overlap. Deterministic (same input → same chunks), returns each chunk with its index and start/end offsets. No API key, no LLM. Pairs with /v1/embeddings for a full chunk→embed pipeline.$0.001 Base102 ms5 payers100% up
  23. 100tempo.halowerk.com/v1/pruef/tempo/verbindungszeit/stylesheetPrüft am Objekt stylesheet den Befund Verbindungsaufbauzeit.$0.001 Base151 ms5 payers100% up
  24. 100netintel.dev/crypto/priceCrypto prices for up to 25 coins in one call — live cryptocurrency spot prices for BTC, ETH, SOL and more in USD, EUR, or GBP from Coinbase with Kraken and CoinGecko fallback; no API key, one flat price. Per asset: price, 24h change when the source provides it, source, cache age. 30s cache; unknown symbols land in unresolved without failing the call. 25 prices for one $0.005 call vs 25 single-symbol lookups.$0.005 Base89 ms5 payers100% up
  25. 100api.24klabs.ai/api/uuid-ulid-genGenerate UUID v4/v5/v7, ULID, or NanoID (single or batch), or parse/validate an existing id and extract its embedded timestamp.$0.001 Base113 ms5 payers100% up
  26. 100livecheck.fly.dev/v1/verify/listingIs this product still available or sold out? POST one Shopify, eBay, or store product page URL. Livecheck reads the page now and returns live (still in stock), closed (sold out or listing ended), or unknown, with title and evidence. $0.01.$0.01 Base112 ms5 payers100% up
  27. 100blockrun.ai/api/v1/pm/polymarket/positionsFetch all user positions with filtering and pagination$0.0085 Base93 ms5 payers100% up
  28. 100blockrun.ai/api/v1/pm/polymarket/markets/smart-activityDiscover markets where high-performing wallets are active$0.0085 Base88 ms5 payers100% up
  29. 100stabletravel.dev/api/flightaware/airports/KORD/weather/observationsGet weather observations (METAR) for a specific airport$0.004 Base283 ms5 payers100% up
  30. 100blockrun.ai/api/v1/defillama/protocol/makerdaoDetailed TVL + breakdown for a single protocol. Pass slug as `/v1/defillama/protocol/{slug}` (e.g. `aave`, `uniswap`).$0.006 Base120 ms5 payers100% up
  31. 100api.vextorium.com/v1/ecb-exchange-ratesOfficial European Central Bank euro reference exchange rates (about 30 currencies) and currency conversion between any two of them, with reference date.$0.003 Solana222 ms5 payers100% up
  32. 100api.vextorium.com/v1/token-price-moversPrice change in % of up to 20 cryptocurrencies over 1h, 24h or 7d, sorted from best to worst, with current price. Tickers of the ~190 largest coins (alternative.me data).$0.003 Solana257 ms5 payers100% up
  33. 100heb-utils-x402.hebutils-api.workers.dev/indicatorsTechnical indicator numbers (SMA, EMA, RSI, MACD, Bollinger, ATR, OBV, Stochastic) from price series you supply (comma-separated, oldest first, up to 250 values). Numbers only, with documented conventions. Not advice, no signals.$0.01 Base208 ms5 payers100% up
  34. 100agent402.tools/api/fx-rateLive currency conversion using European Central Bank reference rates. Converts an amount between two currencies and returns the rate and date.$0.002 Base90 ms5 payers100% up
  35. 100x402.glassnode.com/v1/metadata/assetsAssets Metadata — Lists all assets known to Glassnode and their metadata, including symbol, name, type, supported blockchains, external IDs, and semantic tags. Use the optional CEL filter to narrow results. Data by Glassnode.$0.01 Base194 ms5 payers100% up
  36. 100agent402.tools/api/timeCurrent time: UTC ISO, epoch seconds/ms, day of week/year, ISO week - optionally rendered in any IANA timezone.$0.001 Base96 ms5 payers100% up
  37. 100agent402.tools/api/screenshotScreenshot any public URL in headless Chromium. Returns a PNG image. Use when you need VISUAL evidence (layout, charts, a rendered receipt); when you need the text, extract or render are cheaper and machine-readable.$0.004 Base107 ms5 payers100% up
  38. 100agent402.tools/v1/videos/generationsGenerate a short video clip from a text prompt at a flat price per clip: a four-second 720p clip returned inline as base64 MP4, with the duration and resolution locked so the price never moves. Use it when an agent needs motion rather than a still, and needs to know the cost before it calls.$0.20 Base150 ms5 payers100% up
  39. 100agent402.tools/api/seller-payabilityBuy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches the token it names (the defect that silently makes a whole catalog unpayable).$0.10 Base100 ms5 payers100% up
  40. 100api.craigmbrown.com/v1/services/security.concordium-card-verifyVerifies an agent's Concordium identity card integrity and badge status against the issuing registry - confirms the credential wasn't forged or revoked before you rely on it. | BlindOracle by Craig M. Brown (craigmbrown.com) - counterparty-risk infrastructure sold to autonomous AI agents; self-built multi-agent framework (42+ agents); ERC-8004 agent passport #60979; paid via x402 in USDC on Base$0.02 Base176 ms5 payers100% up
  41. 100modelprices.xyz/llm/cheapestCheapest-model query: returns the lowest-cost AI models matching your constraints — min_context (tokens), vision/function_calling/reasoning (true), max_input_per_mtok (USD cap), limit (default 5). Add expected_input/expected_output token counts to rank by blended USD per request instead of input price; exclude_preview=true skips pre-release models. Answers 'what is the cheapest model that can do X?' across 2,000+ models and 70+ providers.$0.01 Base185 ms5 payers100% up
  42. 100api.youraitools.co/fx/v1/convertCurrency converter API for AI agents. Convert an amount from one currency to another (USD, EUR, GBP, JPY, CNY, INR, CAD, AUD, CHF and 22 more) at the official European Central Bank reference rate, today or on a past date back to 1999. Returns rate, result, inverse rate and the rate date. Search intents: currency converter api, fx convert, exchange rate api, convert usd to eur, forex rate, money conversion for agents.$0.001 Base63 ms5 payers100% up
  43. 100formwerk.halowerk.com/v1/pruef/formwerk/datenfelder/bannerPrüft am Objekt banner den Befund Zahl übermittelter Datenfelder.$0.001 Base152 ms5 payers100% up
  44. 100api.webintel-api.workers.dev/api/security/censys-exposureCensys host view for an IPv4 address: the services, ports and protocols Censys has observed on it with their last scan time and detected software, plus autonomous system, location, network owner and reverse DNS, from the Censys Platform API.$0.002 Base44 ms5 payers100% up
  45. 100verify-oracle.run402.com/api/fx-rateLive forex fx rate and fiat reference exchange rate for currency conversion from the European Central Bank (ECB eurofxref-daily, default EUR/USD).$0.001 Base251 ms5 payers100% up
  46. 100x402-mcp.onrender.com/base/finality-checkBase mainnet transaction finality check: given a tx hash, classifies it as not_found, pending, unsafe (sequencer-confirmed only), safe (L1-attested), or finalized (L1-finalized) -- read directly from the node's own safe/finalized block tags, not a modeled reorg probability. Input: tx hash. Output: JSON.$0.01 Base298 ms5 payers100% up
  47. 100api.tradeenergy-api.workers.dev/api/energy/timber-lumber-random-lengthUS producer price index for lumber and wood products (BLS series WPU081, via FRED), monthly index value. This is a price index, not CME Random Length framing lumber futures or spot quotes; the route name is kept for the owner.$0.002 Base34 ms5 payers100% up
  48. 100api.chainmarket-api.workers.dev/api/crypto/crypto-liquidations-feedOKX perpetual-swap liquidations for one underlying (e.g. BTC-USD): the most recent 100 filled forced liquidations, split into long and short liquidated USD value, with the largest events. Covers OKX only, and the window is the latest 100 events, not a fixed 24h total. Other exchanges' liquidation streams are not reported.$0.002 Base44 ms5 payers100% up
  49. 100api.financialdatasets.ai/pricesHistorical end-of-day stock prices for a US-listed ticker: open, high, low, close and volume per day, week, month or year between start_date and end_date, oldest first. Paginated with next_page_url. Use when an agent needs a price series or a return over a date range. Non-Professional use; Professional use needs a plan at financialdatasets.ai.$0.02 Base279 ms5 payers100% up
  50. 100ontarioprotocol.com/api/x402/base/balancesBase wallet balance: ETH, USDC and about 25 widely held Base tokens for any address, plus up to 20 ERC-20 token contracts you name, each with symbol, decimals, raw and formatted amount and the block number read, live from Base mainnet RPC. Required: address. $0.002 USDC on Base. Failed read, no charge. No account, no API key. Base mainnet only; no prices or USD values; tokens outside the list and your extras are not discovered.$0.002 Base220 ms5 payers100% up
  51. 100kushbitx.com/api/verify-paymentVerify Base USDC payment by transaction hash: did my x402 payment settle? Check recipient and amount (and optional sender) against the official USDC Transfer logs before releasing goods or credit. Returns VERIFIED, MISMATCH, FAILED or PENDING_OR_NOT_FOUND with block, confirmations, the matching transfer and a Basescan link. Read-only: never moves funds.$0.0029 Base233 ms5 payers100% up
  52. 100x240.jvnclk88.workers.dev/scrape/imagesEvery image on a page as JSON - absolute URL, alt text and size attributes (max 200)$0.005 Base280 ms5 payers100% up
  53. 100chainhilt.ai/api/v1/predict/polymarket/markets/searchSearch prediction markets. `closingAfter`/`closingBefore` bound the venue query; other filters apply after fetching `limit` rows, so a page can be short or empty while `nextCursor` is set: keep paging until it is absent. `sort=closingTime` lists open markets closing soonest; with `closingBefore` it finds short-horizon markets such as the 5-minute crypto up/down slots, which text `query` search never returns. Errors: 400 invalid query or cursor, 502 venue failure.$0.001 Base88 ms5 payers100% up
  54. 100route-verdict-production.up.railway.app/v1/checkSend any x402 resource URL, get a trust verdict on the endpoint itself. Returns TRUSTED / CAUTION / AVOID with a 0-100 score from an observation-only live probe (never pays the target): payment terms, Bazaar discovery-schema quality, CDP Bazaar and PayAI catalog presence, plus a diff against the previous check. Use this when an agent is about to pay an unfamiliar x402 endpoint and needs to know it is alive, honestly described, and unchanged first.$0.05 Base295 ms5 payers100% up
  55. 100api.agentpaywire.com/v1/searchSearch the Agent Paywire library of Lightning, L402, x402, and stablecoin sources, plus related articles. Optional words (q), category, status, since date, and limit. One request is 0.01 USDC. The files on https://agentpaywire.com stay free.$0.01 Base265 ms5 payers100% up
  56. 100stall-row-production.up.railway.app/v1/tube-searchYouTube search results as clean JSON: title, video id, URL, channel, duration, views, publish age, and thumbnail for each result, scraped from the public results page with no API key. Optional duration, upload-recency, and channel filters; max_results up to 50 digs past page one. Pays per call or with one Toolkit Pack credit. Use this when an agent needs to find a video mid-task without a browser or a Google API key.$0.01 Base198 ms5 payers100% up
  57. 100token-snapshot.nextill-pos.workers.dev/v1/snapshotERC-20 token snapshot in one call on Base, Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain: USD price, FDV, total DEX liquidity, top pools (Uniswap V2/V3, Aerodrome, Velodrome, PancakeSwap, Sushi, QuickSwap, Trader Joe...), supply-in-pools/burn/owner holder hints, proxy/owner/mint/blacklist/fee risk flags. Live on-chain reads. 0.003 USDC.$0.003 Base168 ms5 payers100% up
  58. 100api.chainmarket-api.workers.dev/api/finance/norges-bank-norwayNorges Bank daily exchange rate of one foreign currency in NOK (NOK per 1 unit of the currency), from Norges Bank's SDMX-JSON data API. Last N observations; business days only.$0.002 Base249 ms5 payers100% up
  59. 100wallet-balances.nextill-pos.workers.dev/v1/balancesWallet balances in one call on 9 chains: native + USDC, USDT, DAI, EURC, bridged USDC, WETH, WBTC/cbBTC on Base, Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain; SOL + USDC/USDT on Solana; TRX + USDT on Tron. Pass 0x, Solana and/or Tron addresses, plus up to 10 custom tokens. Live reads, block numbers, stablecoin total. 0.002 USDC.$0.002 Base260 ms5 payers100% up
  60. 100agentx402pay.com/api/crypto-priceLook up current price, 24h change, and market cap for one or more cryptocurrencies. Independently monitored by x402-list.com: 100% uptime since Oct 27, 2026, 14/14 x402 compliance checks (as of Oct 31, 2026). Evidence: https://x402-list.com/services/agentx402pay$0.01 Base272 ms5 payers100% up
  61. 100api.shopsocial-api.workers.dev/api/social/youtube-channel-searchYouTube channels matching a search query (first page, about 20): channel id, name, handle, subscriber count text, description snippet and channel link, from YouTube's public channel-filtered search page. No video lists or exact subscriber counts.$0.002 Base163 ms5 payers100% up
  62. 100x402-agent-tools.nerolabs.workers.dev/ai/review-analyzeAnalyses up to 50 customer reviews with AI: sentiment, star-rating match, complaint and praise themes, urgency, and optionally a ready-to-post owner reply each, plus a business report with top issues. $0.002 per review, $0.005 per reply drafted, $0.03 per business report (output reviews_only skips it). Runs nerolabs/review-analyzer.$0.002 Base71 ms5 payers100% up
  63. 100agent-tools.jbarkules.workers.dev/v1/web/markdownRead a web page as clean LLM-ready markdown (main content, no nav or scripts) for research, RAG and summarization. Respects robots.txt.$0.0015 Base125 ms5 payers100% up
  64. 100api.chainmarket-api.workers.dev/api/finance/nomics-cryptoCrypto market tickers (replacement for the closed Nomics ticker API): rank, name, symbol, price, 24h volume, market cap, circulating/total/max supply, % change over 15m, 1h, 24h, 7d, 30d, 1y, all-time high price/date and distance from it, in USD or another quote (EUR, GBP, JPY, TRY, BTC, ETH). Top coins by rank, or specific CoinPaprika ids (btc-bitcoin, eth-ethereum). Data from CoinPaprika's public API.$0.002 Base264 ms5 payers100% up
  65. 100x402-agent-tools.nerolabs.workers.dev/ai/enrichApplies one plain-English AI instruction to every row of a JSON list (up to 50 rows), such as classify, extract, summarise or score, with {{field}} placeholders, and returns the new columns you define in outputFields for each row. Uses Claude Haiku. $0.002 per row. Runs nerolabs/dataset-ai-enrich.$0.002 Base64 ms5 payers100% up
  66. 100api.shopsocial-api.workers.dev/api/social/youtube-twitch-kick-creator-outreachOne outreach card for a creator across YouTube, Twitch and Kick (give any of the three usernames): bio, follower/subscriber counts, live status, verified flag, every public social link (Instagram, X, YouTube, Discord, TikTok...) and email addresses written in public bios. Data is what each platform shows publicly; hidden business emails (YouTube 'view email') are not fetched. Unknown usernames are reported per platform.$0.002 Base118 ms5 payers100% up
  67. 100api.agentweather.io/v1/price-indexPrices of live x402 resources payable on the XRP Ledger: lowest-priced live provider per category, USD price distribution, every live endpoint with its rails, and price changes since the previous check, each with source and time. Non-USD prices are converted to USD as an estimate. JSON. Use when yo…$0.005 Base297 ms5 payers100% up
  68. 100api.youraitools.co/injectscan/v1/scanPrompt injection detection API for AI agents. Prompt-injection scan for text your AI agent is about to read (web pages, emails, tool output, MCP tool descriptions): risk score 0-100, verdict, categories and exact spans. Detects instruction overrides, jailbreak personas, system-prompt extraction, fake chat delimiters, data-exfiltration URLs, tool hijacking, hidden Unicode and encoded payloads. Deterministic rules, no data stored.$0.003 Base287 ms5 payers100% up
  69. 100api.jobsproperty-api.workers.dev/api/realestate/studentStudent housing near a university from Student.com (US and Canada): property name, type (PBSA = purpose-built student accommodation, Apartment...), monthly price from/to as listed, rating, distance from the campus in miles, coordinates and listing URL, nearest first, plus the number of properties Student.com maps around that campus. Input = the slugs in Student.com's university URL. Takes about 30 s; allow a 60 s timeout.$0.002 Base142 ms5 payers100% up
  70. 100x402-data-api.sigrunner.workers.dev/chain/is-contractIs a Base address a smart contract or an EOA? Returns is_contract and bytecode size. Use when an agent must decide whether a recipient is a contract before sending funds or approving it.$0.002 Base95 ms5 payers100% up
  71. 100api.webintel-api.workers.dev/api/search/techcrunch-articlesTechCrunch latest articles from its public RSS feed (keyword filter on title/summary/tags). Headlines and excerpts only. Public feed, no key.$0.002 Base56 ms5 payers100% up
  72. 100verifylite.hydratinghealingtouch.workers.dev/safeWebsite safety check for one URL. Passively fetches the site and returns a verdict (safe, caution, unsafe), a 0-100 score, and evidence-backed flags: TLS validity, HTTP-to-HTTPS redirect, redirect chain and offsite redirects, security headers, mixed content, insecure forms, and domain age from the official registry. Useful before visiting, linking to, buying from, or submitting data to an unfamiliar site. Not charged if the host cannot be checked.$0.009 Base65 ms5 payers100% up
  73. 100x402-data-api.sigrunner.workers.dev/crypto/fear-greedCrypto Fear & Greed Index (alternative.me).$0.002 Base51 ms5 payers100% up
  74. 100api.api-agent-ia.ch/nonceWhich nonce should your next transaction use? Returns the number of confirmed transactions sent by an address on Base; pending ones are not counted ($0.002 per call).$0.002 Base186 ms5 payers100% up
  75. 100api.webintel-api.workers.dev/api/search/shopify-metadataPublic product metadata of a Shopify store from its storefront products.json feed (no key): title, handle, vendor, product type, tags, publish and update times, price range, variant and image counts and product link. Only stores that expose products.json; stores that block it return 404. Takes about 20 s; allow a 45 s timeout.$0.002 Base37 ms5 payers100% up
  76. 100formwerk.halowerk.com/v1/pruef/formwerk/vor-einwilligung/netzwerkanfragePrüft am Objekt netzwerkanfrage den Befund Übermittlung vor Einwilligung.$0.001 Base129 ms5 payers100% up
  77. 100formwerk.halowerk.com/v1/pruef/formwerk/vor-einwilligung/pixelPrüft am Objekt pixel den Befund Übermittlung vor Einwilligung.$0.001 Base136 ms5 payers100% up
  78. 100formwerk.halowerk.com/v1/pruef/formwerk/vor-einwilligung/iframePrüft am Objekt iframe den Befund Übermittlung vor Einwilligung.$0.001 Base137 ms5 payers100% up
  79. 100grokzilla.shop/api/skills/address-validateValidate an EVM, Solana, or Bitcoin address locally (EIP-55 checksum, base58, bech32). Optional eth_getCode on Base to label eoa vs contract. No RPC required by default.$0.001 Base171 ms5 payers100% up
  80. 100api.aiskills402.com/v1/run/base-receipt-verifyBase Receipt Verify API: checks on Base mainnet that a transaction really paid USDC to an address - status, transfer, amount, payer and EIP-3009 nonce from the chain logs, never from the relayer. Base mainnet USDC only. $0.005 USDC per check, a live measurement. POST JSON {tx, pay_to, amount_micro?, from?, nonce?}; free example at https://api.aiskills402.com/v1/run/base-receipt-verify/example$0.005 Base44 ms5 payers100% up
  81. 100x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/util/ipUse when an agent needs to know how it is seen from outside: its public IP plus the country, region, city, ASN, AS organization, Cloudflare colo and TLS/HTTP version recorded by Cloudflare's edge for this connection. No external lookup. $0.001 per call (USDC or USDT). Or pay directly in BTC, ETH, USDT, SOL, TRX or STX (sub-cent: stablecoins): see /pay.$0.001 Base197 ms5 payers100% up
  82. 100x402.deepsense.stream/api/v1/market/poolOne DEX pool by address: token metadata on both sides, price, market cap, liquidity, LP burned percent, bonding-curve progress, and volume/price-change reports for 5m, 15m, 30m, 1h, 4h, 6h, 12h and 24h. Use it to price a pair, check depth before a trade, or resolve a token address to its deepest market.$0.002 Base198 ms5 payers100% up
  83. 100x402.deepsense.stream/api/v1/market/searchResolve a token symbol, name or address to DEX pools on Solana, Base or Ethereum: pool, token, dex, price, liquidity, market cap and 24h volume, best liquidity first. Use it to turn a ticker into a tradeable pool address before calling pool, ohlcv, trades or holders.$0.002 Base180 ms5 payers100% up
  84. 100api.tradeenergy-api.workers.dev/api/logistics/hs-code-classifierFinds Harmonized System (HS) codes from UN Comtrade's HS reference list by code prefix or description keyword: code, official description, hierarchy level. It lists candidate headings and subheadings; it does not decide the legal tariff code for a shipment.$0.002 Base43 ms5 payers100% up
  85. 100api.healthtravel-api.workers.dev/api/health/fda-device-gudidFDA GUDID device record by Device Identifier (DI, the GS1/GUDID number on a device label): brand, company, model, description, GMDN term, MRI safety status, single-use and prescription flags. From openFDA's GUDID copy, with FDA AccessGUDID as fallback. Lookup by DI only; no name search.$0.002 Base40 ms5 payers100% up
  86. 100api.healthtravel-api.workers.dev/api/health/nursing-licensure-nursysRegistered nurse license verification for Texas (a Nurse Licensure Compact state) from the Texas Board of Nursing's open data: license number, name, status, status and expiry dates, issue date, original licensure state, county, advanced practice recognition, board action flag, highest degree and school. Search by license number or name (+ county). Nursys has no open API. Takes about 20 s; allow a 45 s timeout.$0.002 Base34 ms5 payers100% up
  87. 100api.companyrecords-api.workers.dev/api/gov/usda-fooddata-centralUSDA FoodData Central food search: FDC ID, description, data type (Branded, Foundation, SR Legacy and others), brand owner and publication date, for a food name. Search results only; nutrient values are not returned here.$0.002 Base65 ms5 payers100% up
  88. 100api.companyrecords-api.workers.dev/api/gov/wikimedia-commons-licenseWikimedia Commons license template names (Template namespace) that start with a prefix, e.g. Cc-zero or Cc-by-sa: template title, page ID and link. Names only, not the license texts or usage rules.$0.002 Base64 ms5 payers100% up
  89. 100api.companyrecords-api.workers.dev/api/b2b/slovakia-rpo-companiesSlovakia RPO register (Statistical Office open API): looks up a legal entity by its 8-digit company ID (IČO) and returns registered names, establishment date, registry court and address. Search by name is not supported by the API; open data under CC BY 4.0.$0.002 Base190 ms5 payers100% up
  90. 100api.companyrecords-api.workers.dev/api/b2b/lead-formatterLead formatter: cleans a list of contact records you supply (name, company, email, phone, website) into one consistent shape: trims spaces, fixes casing of names, lowercases emails and domains, keeps digits of phone numbers, and flags invalid emails. It adds no outside data.$0.002 Base143 ms5 payers100% up
  91. 100api.shopsocial-api.workers.dev/api/social/youtubeLatest videos of a YouTube channel (first page, up to 30): video id, title, link, duration, view count text and age text, read from the channel's public Videos page. No comments, no subscriber counts and no full history; YouTube's page layout can change.$0.002 Base121 ms5 payers100% up
  92. 100api.companyrecords-api.workers.dev/api/gov/ukcontracts-tendersUK awarded public contracts from Contracts Finder (OCDS search, stage=award): notice ID, date, buyer, contract title, awarded supplier and award value in GBP. Award notices only; the newest page of results.$0.002 Base53 ms5 payers100% up
  93. 100api.sitecheck-api.workers.dev/api/airportsAirport lookup in a bundled OurAirports extract (public domain, dated in the answer): by IATA or ICAO code, by name or city words, or the nearest airports within a radius (up to 300 km) of a point. Covers large and medium airports and every airport with an IATA code; small airports without one are left out. Name, codes, type, city, country, coordinates, elevation and Wikipedia link. No time zone (not in the source).$0.002 Base37 ms5 payers100% up
  94. 100solene-fa2010da.base44.app/functions/forensicsApiOn-chain Forensics API for AI agents: token verdict cards and settle-safe pre-trade screens ($0.02), ERC-20 burn/mint and wallet forensics ($0.05, Base/Ethereum/XRPL), and $0.25 due-diligence memos. Bare URL = $0.02 directory tier; append ?endpoint=<name> to call a data endpoint$0.02 Base297 ms5 payers100% up
  95. 100sift.srv1996466.hstgr.cloud/v1/crypto/contractContract check: proxy type, implementation, owner, verified source, capability flags. Inspects any EVM contract: detects EIP-1967 and EIP-1167 proxies and their implementation, reads the owner, checks Sourcify verification, and lists capabilities (mint, pause, blacklist, burn, upgrade) from the logic contract's bytecode.$0.005 Base134 ms5 payers100% up
  96. 100blockrun.ai/api/v1/pm/polymarket/markets/27146956652877944551877724690365745048289675287536243265951843487691050802191/volumeGet historical cumulative volume data for a market$0.0085 Base119 ms5 payers100% up
  97. 100agent402.tools/api/qrQR code ($0.001/call via x402 or MPP)$0.001 solana93 ms5 payers100% up
  98. 100fanfare.run/nba/venue-nearbyRestaurants, bars, parking, and attractions near any NBA arena via Google Places. Great for pre-game planning. Types: restaurant, bar, cafe, parking, tourist_attraction, lodging.$0.001 Base282 ms5 payers100% up
  99. 100fanfare.run/nhl/ticketsLive primary-market ticket listings for an NHL home game via Ticketmaster — price range, purchase URL, and on-sale status.$0.001 Base83 ms5 payers100% up
  100. 100api.loyalspark.online/x402-gateway/mintMint ERC-20 loyalty tokens on Base to a customer wallet or email. Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. On the paid retry send the payment together with header x-api-key: lsk_... or Authorization: Bearer lsk_.....$0.01 Base88 ms5 payers100% up