x402watch

53,742 paid endpoints are listed. 25,811 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 2026-10-07 06:24 UTC · 53,742 probed

25,811 answering 40222,423 down4,640 rejecting868 no paywall1,848 price drift
  1. 90jokes-endpoint.vercel.app/api/jokesGet a random interesting joke. Secured with x402 payment protocol on Base mainnet.$0.002 Base1313 ms46 payers100% up
  2. 90weight402endpoint.vercel.app/api/convert-weightConvert a weight/mass value between units (kg, g, lb, oz, stone, tonne, and more).$0.0025 Base1231 ms42 payers100% up
  3. 90riddlex402.vercel.app/api/riddlePay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.$0.002 Base1149 ms41 payers100% up
  4. 90laso.finance/get-cardGet a prepaid card for use inside the United States$5.00 Base1073 ms40 payers100% up
  5. 90402timezones.vercel.app/api/convert-timezoneConvert a time between any two IANA time zones (DST-aware). Pay-per-call in USDC on Base.$0.001 Base1193 ms40 payers100% up
  6. 90api.nansen.ai/api/v1/tgm/who-bought-soldGet "Token God Mode" (TGM) who bought/sold data$0.01 Base1126 ms36 payers100% up
  7. 90api.bitrefill.com/x402/gift-cards/searchSearch 10,000+ gift card & voucher brands across 180+ countries by name and country. Pay in USDC via x402, no account.$0.002 Base1246 ms35 payers100% up
  8. 90api.nansen.ai/api/v1/profiler/address/current-balanceGet Address Current Balance Data$0.01 Base1212 ms35 payers100% up
  9. 90api.loyalspark.online/x402-gateway/recipient-api/workflow/reward-statusOnchain 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. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.$0.001 Base1018 ms35 payers100% up
  10. 90api.printmoneylab.com/api/v1/kr-pricesKorean exchange prices (Upbit, Bithumb) for a single token in KRW$0.002 Base1371 ms35 payers100% up
  11. 90api.exa.ai/contentsExa /contents endpoint$0.001 Base1409 ms34 payers100% up
  12. 90api.loyalspark.online/x402-gateway/recipient-api/rewardsOnchain 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. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.$0.001 Base1110 ms33 payers100% up
  13. 90api.loyalspark.online/x402-gateway/recipient-api/balanceOnchain 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. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.$0.001 Base1076 ms32 payers100% up
  14. 90api.loyalspark.online/x402-gateway/recipient-api/vouchersOnchain 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. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.$0.001 Base1152 ms32 payers100% up
  15. 90websearch.use.x402atlas.com/searchReal-time web search for AI agents — search the web and get ranked SERP-style results as clean JSON: title, URL, snippet, relevance score, optional LLM-generated answer. Find up-to-date information online — latest news, current events, finance. Date, domain and exact-phrase filters.$0.01 Base1288 ms27 payers100% up
  16. 90x402.twit.sh/tweets/searchSearch Twitter/X tweets with advanced filters. Returns up to 20 tweets per page, most recent first, with pagination. At least one filter required. Params: words, phrase, anyWords, noneWords, hashtags, from, to, mentioning, minReplies, minLikes, minReposts, since (YYYY-MM-DD), until, next_token. e.g. GET /tweets/search?words=bitcoin&from=elonmusk&minLikes=100. Returns X v2 API-compatible JSON.$0.006 Base1499 ms27 payers100% up
  17. 90edgar.apitoll.cloud/v1/edgar/filingsLatest SEC EDGAR filings for any US-listed company by stock ticker or CIK: 10-K annual reports, 10-Q quarterly reports, and 8-K material events. Resolves ticker to CIK via SEC's official index and returns the parsed filing (company, form type, dated items). Sourced live from data.sec.gov.$0.003 Base1673 ms26 payers100% up
  18. 90api.402rates.com/v1/pingPayment integration check for 0.001 USDC; no external data lookup. Returns time, rail, network mode and free/paid capabilities. HTTP payment options can include Base, Polygon, Arbitrum and XDC; the challenge lists currently available networks for each transport. The receipt identifies the paid network and transaction. Business/professional use only. Terms: https://402rates.com/data-terms/$0.001 Base1618 ms26 payers100% up
  19. 90twitter.use.x402atlas.com/searchSearch Twitter/X with structured filters or raw advanced-search syntax. Returns up to 20 normalized tweets with full text, author details, engagement metrics and a pagination cursor.$0.0069 Base1242 ms25 payers100% up
  20. 90laso.finance/authGet auth credentials$0.001 Base1435 ms24 payers100% up
  21. 90pro-api.coinmarketcap.com/x402/v3/cryptocurrency/quotes/latestGet the latest market quotes for one or more cryptocurrencies.$10000000000.00 eip155:561195 ms24 payers100% up
  22. 90agent402.tools/api/demand-radarWhat agents keep asking for that nobody serves yet: aggregated, qualified demand clusters from a live agent-demand board, with caller counts and how long each need has persisted. Use it when a seller or an agent is choosing what to build next and wants unmet demand with evidence instead of guesses.$0.005 Base1324 ms24 payers100% up
  23. 90cheaptokens.ai/api/buyOpenAI-compatible LLM inference and chat completions via discounted Venice API credits. Pay USDC to receive a live Venice.ai API key for /api/v1 models, chat, images, audio, video, and embeddings. Same-Day credits are 30–90% below Venice direct and expire at 23:59 UTC; Prepaid API Keys support recurring agent jobs.$1.00 Base1639 ms23 payers100% up
  24. 90api.hyperextend.xyz/v1/candles/BTC/1m/latestThe most-recent N OHLCV candles (≤5000). Same per-row pricing as the windowed read ($0.00001 base for main/spot, $0.000025 premium for HIP-3/HIP-4); candles lag ~2 days.$0.002 Base1654 ms22 payers100% up
  25. 90agent402.tools/api/bestsellersWhat agents actually pay for across a 500+ tool x402 catalog: the tools ranked by settled calls, distinct buyers and dollars over a window you choose, read from the seller's own sales ledger rather than the chain. Use it when an agent is deciding what to build, what to buy, or what paying demand on x402 looks like this week.$0.005 Base1475 ms22 payers100% up
  26. 90quartermaster.surewhynot.app/v1/gasCurrent Base gas prices and a simple-transfer cost estimate for transaction planning.$0.001 Base1673 ms20 payers100% up
  27. 90api.you.com/v1/searchYou.com Search API: real-time web search returning ranked results grouped by section (results.web, results.news), each with url, title and description; web results also carry snippets. Use when an agent needs fresh, citable web data (news, markets, company facts) to ground a decision. Query params: query (required), count 1-100 (default 10), livecrawl (web|news|all; fetches live page contents, charged per result), country, freshness. Paid per call in USDC.$0.005 Base1947 ms20 payers100% up
  28. 90agent.pocket.network/v1/meadowAn agent-only messaging network. Agents register with an Ed25519 key and talk in public rooms and end-to-end encrypted private rooms and DMs. POST /v2/lookup finds agents by id, handle, name or query; POST /v2/rooms searches the public room directory by name or topic, no identity needed; POST /v2/sync publishes signed events. Auth rides in the body. Pay per request in USDC; no account, no API key.$0.005 Base1426 ms20 payers100% up
  29. 90sat.ipintel.ai/satellite-observeAgent-ready satellite observations for any coordinates. Returns PNG image URLs and scene metadata for true color, vegetation, water, thermal, or radar analysis.$0.025 Base1642 ms18 payers100% up
  30. 90x402.botsmith.dev/x/searchX Tweet Search ($0.02/call): Search X (Twitter) posts with full advanced-search syntax (from:, since:, until:, exact phrases, boolean operators). Returns up to 20 posts per call as clean JSON with metrics and entities, plus a cursor for the next page. No X account or API key needed.$0.02 Base1887 ms18 payers100% up
  31. 90stablestudio.dev/api/uploadGet a client token for direct upload to Vercel Blob$0.01 solana1538 ms18 payers100% up
  32. 90x402.sniperx.fun/api/v1/token/activities/smarttraders_smartmoneyGet SmartMoney trading activities on token (sorted by time descending)$0.02 solana1704 ms18 payers100% up
  33. 90stabletravel.dev/api/seats-aero/searchSearch cached Seats.aero award availability by origin, destination, dates, cabin, carriers, and pagination.$0.02 Base1156 ms18 payers100% up
  34. 90glim.sh/api/v1/twitter/searchSearch tweets with advanced operators (recommended). Body param is `query` (not q), e.g. {"query":"from:elonmusk AI min_faves:100"}$0.005 Solana2121 ms17 payers100% up
  35. 90agentpay.tools/tools/pre_trade_check/callPre-trade risk check for AI agents trading crypto: live orderbook slippage at YOUR size, side-aware funding carry, open-interest crowding, and optional contract security — composed into a single ok/caution/avoid verdict with per-factor reasons and raw data embedded. Answers 'is this trade sane?' before trading, not after. Replaces four API integrations plus the judgment layer.$0.01 Base1462 ms17 payers100% up
  36. 90wallets-demo-seller-server.calebgcarithers.workers.dev/weatherReal-time current weather conditions for a city or location, including temperature, humidity, precipitation, wind, and a human-readable condition.$0.001 Base Sepolia1439 ms16 payers100% up
  37. 90pro-api.coingecko.com/api/v3/x402/onchain/search/poolsSearch onchain DEX pools and token, by contract address, name, or token symbol.$0.01 Base1256 ms16 payers100% up
  38. 90api-dev-v2.ixs.finance/x402/vaultsIXS Real world asset vaults — 6% yields, BlackRock exposure, tokenized on-chain$0.001 Base1913 ms16 payers100% up
  39. 90brokenkey-api-link-tau.vercel.app/api/brokenkeyremapperlinkPurchase and download the Broken Key Remapper software (one-time license).$0.003 Base1559 ms16 payers100% up
  40. 90api.kadec0.xyz/v1/serpWeb search results (SERP). Keyless web search returning ranked title, URL, and snippet for a query — with locale/region targeting, freshness filters (past day, week, month, year), pagination, a news mode that adds publish date and source, and selectable backend engine (auto rotation, or pin Brave, Yahoo, or Yandex).$0.05 Base1612 ms15 payers100% up
  41. 90kronossignals.com/api/v1/forecast/btcReal-time and ML-forecasted Bitcoin (BTC) price. Kronos deep-learning model: up-probability, expected close, price range, p10-p90 quantiles, forward volatility across 1h/4h/24h horizons. Crypto price prediction / price forecast API for AI agents and trading bots. Pay-per-call via x402 on Base USDC. Live scored track record at /api/stats — measured on served predictions, not a backtest.$0.05 Base1483 ms15 payers100% up
  42. 90api.arkm.com/x402/intelligence/addressGet Arkham intelligence for an address. $0.20 per call.$0.20 Base1201 ms15 payers100% up
  43. 90kronossignals.com/api/v1/liquidations/btcForward liquidation cluster map + recent prints for all 17 crypto assets. Part A: estimated liq price levels for 5x/10x/25x/50x leverage bands, modeled from open interest and mark price — no new upstream source. Part B: real liquidation prints from OKX public API (no auth). Returns cluster map, nearest_long/short clusters, squeeze_bias, and honest disclaimers. Supports BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE-USD. Pay-per-call via x402.$0.02 Base1538 ms14 payers100% up
  44. 90coil.trade/api/crypto/gateSTART HERE — the cheapest answer we sell ($0.001) and the first call most agents make. Is crypto risk-on right now? Whether the BTC 200-day master gate is open or closed, the LONG/CASH state of the BTC and ETH sleeves, and a one-line verdict, all evaluated on UTC daily closes by a long-only rules engine. Poll it every cycle; when the gate flips, step up to /api/board/regime for the equity tape and /api/board/indices for the index ladder ($0.005 each). Research, not advice.$0.001 Base1382 ms14 payers100% up
  45. 90vaaya.ai/api/run/exa/searchExa — semantic web search via our API key. numResults up to 100. For people/lead discovery set category:"people" with an open ICP query.$0.01 Base1440 ms14 payers100% up
  46. 90kronossignals.com/api/v1/price/btcMulti-source volume-weighted median (VWM) spot price for 16 crypto assets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT). Aggregates Binance, Coinbase, Kraken, and OKX in parallel (2 s timeout per source). Includes 1% outlier rejection, cross-exchange spread %, confidence grading (high/medium/low), and per-source USD volume weights. Kaiko-style reference pricing — $0.02/call.$0.02 Base1366 ms13 payers100% up
  47. 90win.oneshotagent.com/v1/tools/searchWeb search returning URLs, titles, and descriptions$0.001 Base1324 ms13 payers100% up
  48. 90api.nansen.ai/api/v1/smart-money/netflowGet Smart Money Netflow Data$0.05 Base127 ms13 payers83% up
  49. 90google-trends.use.x402atlas.com/related-queriesGoogle Trends related search queries for a keyword by country — top & rising terms for SEO keyword research, query expansion and content ideas.$0.03 Base1234 ms12 payers100% up
  50. 90minifetch.com/api/v1/x402/preflight/url-checkCheap robots.txt preflight before you call the Minifetch /extract and /run/seo-page-audit endpoints: returns whether the Minifetch user agent may fetch a target URL (allow/deny) plus its crawl-delay. If blocked or setting a crawl delay read https://minifetch.com/tutorials/unblock-minifetch . Checks the URL as given — does not follow redirects. Supports GET & POST$0.001 Base1223 ms12 payers100% up
  51. 90scvd.store/api/buy/spot_checkSpot Check. REQUIRES ?host= on the paid request — a signed request without it is refused before the gate and no money moves. Name a host and get what this observatory already holds on it, signed: corpus rounds and verdicts as recorded, when we last actually knocked, our coverage of the window since we met it, and the gaps with their reasons. Read from the books at the counter — no request is made to the host, so the answer is as fresh as our last round and no fresher, and sa…$0.001 Base1463 ms12 payers100% up
  52. 90kronossignals.com/api/v1/fear-greedCrypto Fear & Greed Index: alternative.me score (0-100) plus Kronos-owned context (BTC funding sentiment, OI 1h trend, 24h price momentum). Not a pure proxy — adds proprietary derivative signals. Pay-per-call via x402.$0.03 Base1161 ms12 payers100% up
  53. 90headers.use.x402atlas.com/Audit a URL's HTTP security headers over a single body-free (HEAD) request. Grades Strict-Transport-Security, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy and Permissions-Policy, flags information-leak headers (Server, X-Powered-By), and returns the parsed values plus advisory warnings. Clean JSON for security and pentest automation.$0.01 Base1103 ms12 payers100% up
  54. 90api.bitrefill.com/x402/checkout/infoDiscover the Bitrefill x402 storefront: supported networks, the full route flow, and wallet persistence rules.$0.001 Base1022 ms12 payers100% up
  55. 90api.robinx.io/feed/newLive scored launch feed (realtime) — or add ?tier=free for the 10-min-delayed free feed, or ?tier=alpha ($0.02) for caller_signal enrichment$0.01 Base1218 ms12 payers100% up
  56. 90gas.apitoll.cloud/v1/base/gasBase gas oracle / gas price API for AI agents and bots — get the gas price for a transaction on Base in one x402 call. Real-time slow/standard/fast EIP-1559 fee tiers from a live eth_feeHistory call, returned as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei — plug straight into a viem/ethers transaction, no gwei conversion. Plus base fee, head block, and network fullness. Call it before every Base tx to set a fair fee or wait out congestion.$0.001 Base1426 ms12 payers100% up
  57. 90api.loyalspark.online/x402-gateway/transferOnchain 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. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.$0.005 Base133 ms12 payers83% up
  58. 90chat.gedx402.com/v1/chat/completionsMulti-model chat completions. POST messages[] and set model to any LLM id from GET /v1/models; dynamic USDC pricing scales with model and token usage. Hero: GET /heroes/chat-completions.$0.001 Base1643 ms11 payers100% up
  59. 90search.cyberwarex.com/searchWeb search that returns structured SERP results as JSON. Runs on a dedicated SearXNG instance aggregating multiple engines, so there is no per-engine API key, quota or HTML scraping to manage. Each result carries title, URL, snippet, the source engine and a published date where available. Choose general web, news, or image results, up to 10 per call. Use it to ground an answer in current web sources, research a topic, or monitor news on a query.$0.003 Base1424 ms11 payers100% up
  60. 90x402tap.com/api/weatherLive current weather conditions for any city, sourced from Open-Meteo$0.001 Base1225 ms11 payers100% up
  61. 90coingecko.use.x402atlas.com/priceCrypto token price in USD, EUR and more — real-time spot prices for one or many coins by CoinGecko id (bitcoin, ethereum, solana).$0.005 Base1044 ms11 payers100% up
  62. 90lionx402.com/api/x402/wallet-screen-jsonCheapest OFAC SDN wallet screen for AI agents ($0.001). AML/KYT pre-pay gate: PASS/WARN/BLOCK before you settle any x402 counterparty. Keyless Base USDC, Ed25519-attested. Beats $0.005–$0.05 wallet-screen clones. Upsell multi-list sanctions $0.02 + compliance receipt $0.05.$0.001 Base1456 ms11 payers100% up
  63. 90omniterminal.app/api/x402/v1/newsOmni Terminal delivers fresh, deduplicated market-moving news and catalyst context across equities, crypto, macro, and forex for AI trading agents.$0.001 Base Sepolia1430 ms11 payers100% up
  64. 90base-gas-x402-production.up.railway.app/gasLive Base mainnet gas: EIP-1559 base fee, low/medium/high priority tiers in gwei, and a transaction cost estimate for any gas limit.$0.005 Base1051 ms11 payers100% up
  65. 90x402.miroshark.xyz/runMiroShark: predict how people and markets react to any scenario - a product launch, policy, campaign, crisis, token launch, or news headline. Spawns a 25-agent simulation across Twitter, Reddit, and a Polymarket-style prediction market over 10 rounds from a prompt, article, or URL, then returns a cited markdown report with belief drift, top posts, and market reaction.$1.00 Base1103 ms10 payers100% up
  66. 90agentres.dev/api/discover/restaurantsRestaurant recommendations from the Blackbird network (~2,000 curated restaurants, mostly NYC and San Francisco). Full-text search plus city/neighborhood filters, with complete specials on every result, refreshed daily from a cache (never a live call) — e.g. every West Village restaurant with its current Fly-reward offers in one call.$0.01 Base1292 ms10 payers100% up
  67. 90win.oneshotagent.com/v1/tools/web-readRead a web page and extract content as markdown with screenshot$0.002 Base1208 ms10 payers100% up
  68. 90quotient-api-gateway.onrender.com/api/v1/signals/featuredUse this when the user asks which prediction-market signal is currently designated as featured by Quotient. Returns its published side and lifecycle, forecast_status, entry and current fields, forecast context, capacity, and canonical market routing; it may be empty. The featured designation is a database field.$0.005 Base1423 ms10 payers100% up
  69. 90proxy.suverse.io/v1/proxy/reskey_1166628d/bazaar-testBitcoin spot price in USD. Pay-per-call $0.001 USDC. AI agent BTC price feed.$0.001 Base1142 ms10 payers100% up
  70. 90google-trends.use.x402atlas.com/trendGoogle Trends interest over time for a keyword — worldwide search popularity as a monthly series for keyword research, SEO & demand trend analysis.$0.05 Base1219 ms9 payers100% up
  71. 90web.cyberwarex.com/fetchRead any live web page as clean, LLM-ready text. Renders JavaScript in a real browser, then strips navigation, ads and boilerplate. Use it when a plain HTTP GET returns empty or garbled HTML: single-page apps, dynamic feeds, or content that only appears after scripts run. Returns markdown, plain text or cleaned HTML plus the upstream HTTP status. Page content is third-party data and is flagged untrusted so an agent treats it as input, never as instructions.$0.002 Base1514 ms9 payers100% up
  72. 90api.chit402.com/v1/chat/completionsSigned spend receipts for agent x402 payments — who paid which call, verifiable by a third party. Treasury desk and possession book for agent spend — export, policy, evidence. POST /v1/chat/completions is the x402 USDC door on Base and Solana. Returns signed receipt + public verify_url. Paying this host is real mainnet USDC.$0.002 Base1093 ms9 payers100% up
  73. 90email-auth.use.x402atlas.com/checkEmail authentication posture check: parses SPF, DMARC and DKIM plus MX for any domain and grades deliverability/anti-spoofing gaps (SPF +all, SPF >10 lookups, DMARC p=none, missing DKIM). Clean JSON for deliverability and security-ops automation.$0.01 Base1083 ms9 payers100% up
  74. 90rpc.nodeflare.app/base/x402Base RPC (chain 8453): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexing, event queries, and simulation. Simple calls $0.001; heavy calls priced by compute units.$0.001 Base1384 ms9 payers100% up
  75. 90zoningverdict.com/api/v1/parcel/resolveAddress-to-zoning lookup for published municipalities. Coverage: 64 municipalities in 6 states. Resolves a street address to supported municipality and, where GIS is verified, zoning district_code with lookup method. Positioning: Records tell you what's on file; ZoningVerdict tells you what the ordinance actually says, independently verified, with the citation. Responses include source citations and last-reviewed dates. Price: $0.01/call.$0.01 Base1436 ms9 payers100% up
  76. 90bykaranteli.com/api/x402/flow-vpinOrder flow toxicity (VPIN) history for BTC, ETH and SOL: 90-day daily VPIN track with closes plus the last 500 volume buckets.$0.10 Base1339 ms9 payers100% up
  77. 90agents.samedaydesk.com/extractExtract a public HTTP(S) page into JSON: title, description, JSON-LD, Open Graph, headings, links, and AI-readiness signals. No JavaScript; 12-second timeout; 3 MB cap. Paid JSON keeps requestedUrl, finalUrl, status, sourceOk, error, and capture limits. Default excerpt 1200. Optional textExcerptLimitChars 1-40000 is rejected before payment; price unchanged. Not the full page. Use /read for Markdown.$0.005 Base1227 ms9 payers100% up
  78. 90x402.aispace.bot/api/v1/chat/completionsOpenAI-compatible chat on 100+ Venice models via x402 USDC (Base). Model from GET /api/v1/models?type=text; personas via /characters. Thinking models: empty content + reasoning_content is success; use venice_parameters.disable_thinking for plain text.$0.01 Base1377 ms9 payers100% up
  79. 90x402-adsb.x402-adsb-worker.workers.dev/aircraftLive aircraft positions over Kansai / western Japan from an independent ADS-B receiver (~1s freshness): position, altitude, speed, squawk, plus callsign→route resolution (origin/destination airports) from official timetables.$0.001 Base1352 ms9 payers100% up
  80. 90evm-gas.apitoll.cloud/v1/evm/gasMulti-chain EVM gas price oracle for AI agents — 17 chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Avalanche…). One x402 call returns slow/standard/fast EIP-1559 tiers as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei (plug straight into a viem/ethers tx, no conversion, exact even on sub-gwei L2s), plus base fee, head block, and fullness, from a live eth_feeHistory call. Pass ?chain= to switch chains.$0.001 Base1348 ms9 payers100% up
  81. 90x402.glassnode.com/v1/metrics/market/mvrvMarket Value to Realized Value Ratio (MVRV) — Market Value to Realized Value (MVRV) is the ratio between market cap and realized cap. Data by Glassnode.$0.05 Base1038 ms9 payers100% up
  82. 90api.interzoid.com/getfullnamematchGenerate an AI-powered similarity key for individual/person name matching. Handles variations like 'Bob Smith', 'Robert Smith', 'Smith, Robert J.' producing the same key for matching and deduplication.$0.01 Base1023 ms9 payers100% up
  83. 90weather.cyberwarex.com/forecastWeather forecast for a location (global, keyless)$0.002 Base1029 ms9 payers100% up
  84. 90intel.twzrd.xyz/v1/intel/quick/:solana_addressSeller wash risk and wallet reputation for a Solana x402 merchant: wash label, fleet %, payer count, plus tier + score. 0.001 USDC. No signed V7 receipt (use GET /v1/intel/trust for the portable proof). Free preflight is allow|warn|block only. Sponsored Solana accepts require a payment client that honors accepts[].extra.feePayer (for example @x402/svm ExactSvmScheme); AgentCash cannot settle that Solana rail.$0.001 Solana1317 ms8 payers100% up
  85. 90onchainpulse.theaslangroupllc.com/api/facet/honeypotHoneypot check, half a cent: can this token actually be sold? Simulated buy+sell verdict, buy/sell/transfer tax, mint authority, ownership renounced, transfer-pausable, blacklist — the raw flags, one source, no fusion. Base, Ethereum, BSC, Arbitrum, Polygon, Optimism, Avalanche. Cheapest token safety check before you trade; upgrade to /api/evmtoken ($0.015) for the fused CLEAR/CAUTION/AVOID verdict. Answers: is this token safe?$0.005 Base1174 ms8 payers100% up
  86. 90news.apitoll.cloud/v1/cointelegraph/newsLatest crypto news and breaking headlines, real-time from Cointelegraph. Search any topic (bitcoin, ethereum, DeFi, regulation, market sentiment) or pull the live feed, with full article text across 14 languages. Built for agents tracking crypto markets, tokens, and Web3.$0.001 Base1416 ms8 payers100% up
  87. 90preppers-paradise.com/library/automatetheboringstuffwithpythonnew/02-what-is-programming.mdPaid book chapter (x402): Automate the Boring Stuff with Python: What Is Programming. Unit of a larger practical-skills library; free catalog at /library/discovery.json. Book slug: automatetheboringstuffwithpythonnew. Response format: Markdown (.md) for agent parsing. USDC on Base via Coinbase CDP facilitator. Free teasers and discovery.json require no payment.$0.01 Base1342 ms8 payers100% up
  88. 90ssl.use.x402atlas.com/checkSSL/TLS certificate check: expiry, issuer, SANs, chain validity, hostname match, negotiated protocol/cipher, and weak-algo warnings for a public HTTPS host. Clean JSON.$0.01 Base1095 ms8 payers100% up
  89. 90unwrap.use.x402atlas.com/Trace an HTTP redirect chain to its final destination without downloading page bodies. Returns every hop (URL + status), the final URL, and safety warnings — link-safety grounding for agents before they visit or cite a URL. Clean JSON.$0.009 Base1052 ms8 payers100% up
  90. 90toolcall.click/t/fx/ratesForeign exchange reference rates from the European Central Bank. Base currency plus optional symbols filter. Updated daily on ECB schedule. JSON response. $0.002 USDC per call, pay via x402, no API key.$0.002 Base1375 ms8 payers100% up
  91. 90orcpin.dev/v1/endpoint-reliabilityx402 endpoint reliability pre-flight: factual service-delivery measurements of a target x402 endpoint before an agent pays it — reachability/uptime rate, valid-402 rate, response latency (p50/p95/p99), last status, and sampled paid delivery verification. Facts only (no trust score, no 'scam' label). Check whether an endpoint is live and delivers before spending on it.$0.01 Base1147 ms8 payers100% up
  92. 90api.justaname.id/ens/v2/resolveResolves an ENS name into its addresses, text records, and content hash, with batch support up to 50 names and per-name chain scoping via interop addresses.$0.005 Base1650 ms8 payers100% up
  93. 90glim.sh/api/v1/reddit/searchSearch Reddit posts$0.01 Solana145 ms8 payers83% up
  94. 90x402-factory.com/v1/pingCheapest endpoint: liveness plus x402 payment pipeline check — Returns ok with the server time and whether this call was paid. Use it to verify your x402 client end to end before spending on data endpoints.$0.001 Base1115 ms8 payers100% up
  95. 90api.clawfetch.ai/extractorsDiscovery endpoint listing all 17 available structured-data extractors and the domains each one supports, so an agent can decide whether /extract can handle a given URL before paying for it.$0.001 Base1150 ms8 payers100% up
  96. 90api.moltalyzer.xyz/api/moltbook/digestsHistorical hourly AI intelligence digests (1-24 hours lookback). Track how AI agent sentiment, topics, and narratives evolve over time. Each digest contains full analysis of that hour's agent activity.$0.02 Base1273 ms8 payers100% up
  97. 90agent.connskill.com/v1/keyword-metricsKeyword demand check for up to 1000 chosen terms: search volume, CPC, advertising competition and available monthly history from Google Ads data. Advertising competition is not organic SEO difficulty.$0.15 Base1504 ms8 payers100% up
  98. 90agenttoll.app/api/gasBase gas price check: the current gas price and latest block number; add ?gasLimit=150000 to also get what a transaction that size costs in ETH and USD$0.001 Base1208 ms8 payers100% up
  99. 90api.myceliasignal.com/oracle/price/btc/usdReal-time Bitcoin price in USD, a median across 10 exchanges including Binance, Coinbase, Kraken and Bullish — Ed25519 signed attestation$0.01 Base1132 ms8 payers100% up
  100. 90x402.aispace.bot/api/v1/image/generateText-to-image generation on Venice models (Flux, SD3.5, GPT-Image, HunyuanImage, and more), paid per request in USDC on Base via x402, no API key. Resolve a model id from GET /api/v1/models?type=image and an optional style from GET /api/v1/image/styles.$0.015 Base1320 ms7 payers100% up