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. 100api.shopsocial-api.workers.dev/api/ecommerce/gmx-arbitrum-pricesGMX token prices on Arbitrum from the public api.gmx.io/prices feed. Returns token contract addresses (the feed has no symbols) and USD price per token, scaled by 1e30 as GMX does. Use the address to match the token yourself.$0.002 Base32 ms4 payers100% up
  2. 100api.wickedapi.com/v1/liquidationsRecent forced liquidations on OKX USDT perpetual swaps for a coin: each event with time, liquidated side, bankruptcy price, size and USD notional, plus long vs short liquidated totals and the largest event. Real exchange data, no estimates.$0.002 Base135 ms4 payers100% up
  3. 100api.mekler.ai/v1/services/listings/export-listingsExport up to 10000 visible x402 directory services with attributed source facts, measured health and grade history, first seen, scan counts, provenance and explicit truncation. Returns gzip+base64 JSON and a digest; large results use a 60 second signed download URL. Costs 0.25 USDC on Base or Solana. Reuse the original body and payment proof for exact 30 day result recovery.$0.25 Solana88 ms4 payers100% up
  4. 100api.fadeandco.workers.dev/api/dev/espn-nhl-scoreboardESPN NHL scoreboard for one date: every game with home and away team, score, status (scheduled, live, final) and stadium, from ESPN's public site JSON. Times are UTC; days with no games return an empty list.$0.002 Base46 ms4 payers100% up
  5. 100api.sitecheck-api.workers.dev/api/crypto/whalesLarge stablecoin and major-token transfers in the last few minutes on Ethereum, Base, Arbitrum, Optimism or Polygon: hash, block time, sender, receiver, amount and USD value at the Coinbase spot price, sorted by value. Labels only for a few known addresses; others are null. One token contract is read over public RPC, so the window is short. Information only, not financial advice.$0.003 Base43 ms4 payers100% up
  6. 100api.mekler.ai/v1/services/listings/check-listing-visibilityMonitor one paid API operation across x402scan, CDP Bazaar and Agentic Market. Check exact listing presence, one to three buyer queries and optional description drift. Return dated evidence, confirmed change alerts, private history and the next polling request. Partial coverage and timeouts stay unknown; no ranking or indexing guarantee.$0.005 Solana121 ms4 payers100% up
  7. 100gogeta2-u35175.vm.elestio.app/agents/v1/fx/latestAll official ECB reference rates for any base currency on the latest or a given fixing date, including pegged currencies (XOF, XAF, AED, SAR). One call, full rate table.$0.002 Base130 ms4 payers100% up
  8. 100crypto-market-data.zafermemon87.workers.dev/v1/orderbookBid-ask spread, order-book imbalance, buyer share of the last 15 minutes and volume versus normal per coin.$0.003 Base73 ms4 payers100% up
  9. 100crypto-market-data.zafermemon87.workers.dev/v1/pricesLive prices with 5-minute, 1-hour, 4-hour and 24-hour change and 24-hour volume for the top 50 crypto coins, refreshed every minute.$0.003 Base47 ms4 payers100% up
  10. 100scraplingdata.xyz/v1/lookup/token-riskIs this Base token a scam? Honeypot / cannot-sell check, buy and sell tax, hidden owner, mintable flag a 0-100 risk score and a one-word verdict (go / caution / avoid) for a Base (chain 8453) token contract. Example: address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. Cached scan, else live GoPlus check (about 1-3 s)$0.005 Base128 ms4 payers100% up
  11. 100x402render-u5vwpxpyua-uc.a.run.app/defi-stablecoinsStablecoin circulating supply and peg status across 400+ pegged assets, ranked by size$0.006 Base81 ms4 payers100% up
  12. 100api.sitecheck-api.workers.dev/api/crypto/fundingPerpetual futures funding for one coin across Hyperliquid, OKX, Deribit and dYdX v4: the current funding rate, the interval (1 or 8 hours), the annualised rate, the next funding time, open interest in coins and USD, and the mark or oracle price. A venue that does not list the coin is left out and named in unavailable. Rates are as the venues publish them; funding is paid between traders, not to the venue. Information only, not financial advice.$0.002 Base51 ms4 payers100% up
  13. 100sift.srv1996466.hstgr.cloud/v1/searchWeb search with a grounded answer and source links (Google Search). Searches the live web with Google Search and returns a concise factual answer plus the source pages (title and real URL) and the queries used. Good for current facts, prices, news and docs.$0.06 Base142 ms4 payers100% up
  14. 100app.domainhelp.com/api/v1/domain-availabilityTri-state domain registration availability intelligence$0.004 Base203 ms4 payers100% up
  15. 100api.x-402.online/v1/visionAnswer a question about an image, or describe it, from a URL or base64. Image understanding pay-per-call, no account and no API key: send an image URL (or base64) and an optional question, receive a plain-language answer from a multimodal…$0.02 Base279 ms4 payers100% up
  16. 100nzdata.zakwins.workers.dev/nz/validate/irdValidate NZ IRD/GST number check digit$0.001 Base239 ms4 payers100% up
  17. 100blockrun.ai/api/v1/pm/polymarket/orderbooksGet historical orderbook snapshots for a token$0.0085 Base207 ms4 payers100% up
  18. 100api.x-402.online/v1/transcribeTranscribe the actual audio of a YouTube, TikTok or Instagram video with Whisper large-v3. Not caption scraping: the audio is downloaded and run through speech recognition, so it works on videos with no subtitles, in any language, and on TikTok and Instagram where no caption track…$0.02 Base210 ms4 payers100% up
  19. 100blockrun.ai/api/v1/pm/opinion/marketsList Opinion markets with filtering and sorting$0.0085 Base160 ms4 payers100% up
  20. 100blockrun.ai/api/v1/pm/polymarket/leaderboard/market/:hashGet leaderboard for a specific market$0.0085 Base231 ms4 payers100% up
  21. 100api.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. On the paid retry send the payment together with header x-api-key: lsk_... or Authorization: Bearer lsk_.... A payment without a live key is not charged. Read key, no browser: POST https://api.loyalspark.online/x402-gateway/register-agent. HTTP 402 is $0.01 USDC on Base. Pay it and do not send an API key. You receive lsk_ once, scope read only: list your programs, rewards, balances, and analytics. That key cannot mint, deploy a program, create rewards, or trade. A new wallet gets a 45-day Pro trial (5 agents, 10,000 calls/month), then Free (1 agent, 200 calls/month, 1,000 tokens minted/month, 1.25% mint fee) unless that wallet pays. The $0.01 is the call price, not a subscription. No free seat returns 403 before any charge. Write scopes (mint, create_program, manage_rewards, trade) use the same plan: dashboard https://loyalspark.online/merchant → AI Agents, or free SIWE — POST https://api.loyalspark.online/siwe-nonce, sign Chain ID 8453 with the exact phrase 'Register Loyal Spark merchant agent', then POST {message, signature, name, scopes} to https://api.loyalspark.online/agent-register-siwe. Look first with no key: GET https://api.loyalspark.online/x402-gateway/public-programs ($0.001, active programs, not your own list). Guide: https://loyalspark.online/.well-known/skills/00-getting-started.md The call is scoped to the wallet behind that key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.$0.005 Base89 ms4 payers100% up
  22. 100api.x-402.online/v1/wiki/summaryThe plain-language summary of a Wikipedia article in any language edition: title, short description, lead extract, canonical URL, thumbnail and coordinates when the subject has them. Falls back to the best matching title. Query: ?title=Guadeloupe&lang=fr$0.005 Base194 ms4 payers100% up
  23. 100api.x-402.online/v1/url/unwrapTrace the redirect chain of a URL to its final destination without downloading page bodies: every hop with its status code, time and Location header, the final URL, whether the domain changed, and loop detection. Useful before trusting a short link or an ad link. Query: ?url=https://bit.ly/…$0.005 Base229 ms4 payers100% up
  24. 100bot-bazaar.fly.dev/v1/x402/seller-checkDue-diligence lookup on an x402 seller before paying it: checks that the seller's x402 endpoint answers 402 with a matching Base USDC payTo, and returns the payout wallet's funder and age, Bot Bazaar reputation, count of distinct on-chain payers (withheld for the operator's own wallets), and an OFAC SDN address screen. Query by payTo wallet or endpoint URL.$0.01 Base221 ms4 payers100% up
  25. 100win.oneshotagent.com/v1/tools/lookup/gene-summaryDescribe a gene from its NCBI Gene ID or official symbol: name, aliases, organism, position on the genome and a summary of its function.$0.005 Base95 ms4 payers100% up
  26. 100win.oneshotagent.com/v1/tools/lookup/person-postsGet recent social media posts from a person$0.07 Base185 ms4 payers100% up
  27. 100x402engine.app/api/llm/glm-5.3-flashx402engine — GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context behavior while$0.0032 Base185 ms4 payers100% up
  28. 100automaton-tx-explainer.vercel.app/v1/bsc/addressInspect any BNB Smart Chain address: EOA vs contract vs EIP-7702 delegated, BNB balance, nonce, proxy implementation (EIP-1967/1167/zos), and ERC-20 name/symbol/decimals/supply.$0.005 Base262 ms4 payers100% up
  29. 100banking-compliance-production.up.railway.app/api/lookupSearch the federal banking compliance rules database. 56 rules across Reg DD, Reg Z, UDAAP, ECOA, BSA/AML, and more.$0.003 Base274 ms4 payers100% up
  30. 100library.forgemesh.io/ask-the-odysseyAsk a question about Homer's Odyssey for a tutoring agent, quiz generator, or reading app — get back matching source passages with surrounding context from the text itself, with chapter and location citations. Retrieval only, full-text search over the real text, not a generated summary or answer. No license, no API key required.$0.01 Base129 ms4 payers100% up
  31. 100apexfaucet.xyz/api/x402/page-snapAPEX. Website screenshot: capture any public URL as an image in a real headless Chrome, with its text. See a web page the way a person does: pass ?url= and get a 1280x900 screenshot (JPEG, base64) of the first screen, rendered in a real headless Chrome with JavaScript executed, plus the page title, its full visible text and its links. Bot walls and empty renders are refused before any charge. Paid in USDC on Base.$0.001 Base273 ms4 payers100% up
  32. 100x402-service-production-e242.up.railway.app/vin-decodeSingle VIN decode via NHTSA vPIC: make, model, year, trim, engine, transmission, drivetrain, GVWR, plant country. Spec data only -- no accident/title/odometer history.$0.005 Solana294 ms4 payers100% up
  33. 100vaunt-dispatch-production.up.railway.app/agent/x402/scorecardThe answer key for Vaunt's live routes: every real-money news position of the last 14 days (closed 24h+ ago) with its cell, outcome, banded return and hold bucket, plus the weekly and per-strategy record. Check that what /opportunities showed 60 minutes after entry actually paid. Executed on Hyperliquid.$0.001 Base162 ms4 payers100% up
  34. 100twin.unykorn.org/solana-epochSolana epoch progress — Genesis402 / UnyKorn Operator Network$0.003 Base158 ms4 payers100% up
  35. 100gateway.spraay.app/api/v1/swap/tokensSupported swap tokens.$0.001 Base112 ms4 payers100% up
  36. 100gateway.spraay.app/api/v1/pricesLive token prices.$0.005 Base153 ms4 payers100% up
  37. 100mcp-x402.onrender.com/gate/mnemos/v1/gas/recommendMNEMOS gas recommendation$0.001 Base153 ms4 payers100% up
  38. 100twin.unykorn.org/web-extractWeb page to clean text: title, description, headings, links and readable text from any public URL — Genesis402 / UnyKorn Operator Network$0.004 Base164 ms4 payers100% up
  39. 100hello-world-x402.vercel.app/helloReturns "Hello World" after payment verification$0.001 Base207 ms4 payers100% up
  40. 100twin.unykorn.org/check/addressCheck before you pay or trade: pass / review / block for one wallet or contract address (EVM chains, Solana). Use it before you pay, trade with or approve an address: one cheap call returns pass, review or block with the reasons and the list dates.$0.01 Base115 ms4 payers100% up
  41. 100twin.unykorn.org/llmLLM chat completion (qwen2.5:7b on the operator's RTX 5090 Laptop GPU) — Genesis402 / UnyKorn Operator Network$0.003 Base133 ms4 payers100% up
  42. 100archtools.dev/v1/tools/ip-lookupGeo, ISP, VPN/proxy detection. Pay per call with USDC (x402) or credits - archtools.dev$0.01 Base177 ms4 payers100% up
  43. 100archtools.dev/v1/tools/transform-textTransform text (10 modes: slug, camel, base64...). Pay per call with USDC (x402) or credits - archtools.dev$0.01 Base167 ms4 payers100% up
  44. 100api.signalfuse.co/v1/sentiment/HOODModernFinBERT social sentiment for equity tickers$0.002 Base137 ms4 payers100% up
  45. 100signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/SOLIndividual arena strategy signal$0.001 Base235 ms4 payers100% up
  46. 100signal-engine-production-d88d.up.railway.app/v1/arena/rsi_7_extremes/SOLIndividual arena strategy signal$0.001 Base98 ms4 payers100% up
  47. 100agent.massive.com/v2/aggs/grouped/locale/us/market/stocks/:dateGet the daily open, high, low, and close (OHLC) for the entire stocks/equities markets. Can't find what you're looking for? POST feedback to /feedback, no charge.$0.01 Base67 ms3 payers100% up
  48. 100x402-agent-api.onrender.com/api/v1/scrape-markdownRead any public URL as clean Markdown for an LLM: articles, docs, product pages, news, PDFs (text by page), RSS feeds and JSON. Real tables, code with language, math as TeX, absolute links; author, publish date and other metadata from meta tags and JSON-LD; optional links list; long pages in parts. Bot checks and empty pages are not charged. No account or API key. $0.002 USDC per call.$0.002 Base140 ms3 payers100% up
  49. 100api.kadec0.xyz/v1/geocodeGeocoding and reverse geocoding. Converts an address or place name to latitude/longitude, or coordinates back to an address.$0.02 Base92 ms3 payers100% up
  50. 100glim.sh/api/v1/twitter/users/:ref/tweetsA user's recent tweets, ~20/page. Body: optional cursor + include_replies only$0.004 Solana135 ms3 payers100% up
  51. 100x402-data-api.sigrunner.workers.dev/chain/token-securityIs this Base token a scam or rug pull? Honeypot detector for a Base ERC-20: EIP-1967 proxy + upgradeability check, bytecode scan for mint/pause/blacklist/fee-setter/ownership, owner() renouncement, and a live eth_call state-override sim proving a real wallet can transfer() it. Returns risk_score (0-100) + verdict (clear/review/block) + honeypot/scam/rug flags. Use before an agent buys, holds or approves a token.$0.009 Base230 ms3 payers100% up
  52. 100api.stocktrends.com/v1/indicators/historyHistorical weekly Stock Trends indicator series for a symbol. Stock Trends indicators are part of a multi-decade classification framework with records extending back to 1980. Their value comes from consistent semantics across market history: trend state, trend persistence, relative performance, relative performance direction, and volume activity are encoded in a stable doctrine designed for longitudinal research.$0.01 Base258 ms3 payers100% up
  53. 100x402.telnyx.com/v1/chat/completions/_t/midMid-tier chat completions via Telnyx Inference (Kimi K2.6, MoE) — larger context (up to 36K chars input) and 1024-token output. OpenAI-compatible. Up to $0.01385 USDC per call, quoted to your request (input + max_tokens at list rates, no markup).$0.002 Base81 ms3 payers100% up
  54. 100agent.pocket.network/v1/taint-checkScan a dependency manifest for known-vulnerable and confirmed-malicious packages. POST /v1/scan with a link to a lockfile on GitHub, GitLab or Bitbucket, the file pasted in, or a components array, and get per-dependency verdicts (malicious, vulnerable, suspicious, clean) from OSV.dev and the OpenSSF Malicious Packages feed. Pay per request in USDC; no account, no API key.$0.005 Base140 ms3 payers100% up
  55. 100stationfx.com/util/convert/json-to-toonConvert flat tabular JSON (array of objects, or {meta, data, result_type}) to TOON, a compact pipe-delimited text format with ~60-70% fewer tokens than JSON. $0.005 per call via x402 USDC on Base or Solana, or a bearer token.$0.005 Base83 ms3 payers100% up
  56. 100trust-agent.io/v1/verify/deepSmart contract security check before you approve or pay an address: reads the bytecode, behind proxies too, for privileged functions (mint, pause, blacklist, upgrade), dangerous opcodes and protocol type, and checks whether a single key holds those powers. Adds OFAC SDN screening, who funded the address, sybil-filtered ERC-8004 reputation for agents and a 0-100 score with proceed / hold / block. Static analysis, not an audit. Free: GET /v1/verify. Trial: /v1/trial.$0.01 Base88 ms3 payers100% up
  57. 100tariffmonkee.com/paid/sitegradeDomain security grade (0-100, A-F) from HTTPS reachability, security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy) and CAA records. Reports HTTPS connect success or failure, not raw certificate expiry. Registration facts are in /domain-intel; URL reputation is in /linkcheck.$0.05 Base66 ms3 payers100% up
  58. 100api.eckari.com/v1/locations/us/geographiesReturn the US Census Bureau geographies containing a latitude/longitude — state, county, census tract, block group, census block, incorporated place, congressional district and ZIP Code Tabulation Area — each with its FIPS or GEOID. The standard way to attach official US statistical geography to a point. Use when: Which county and census tract is this coordinate in?$0.003 Base35 ms3 payers100% up
  59. 100agent.massive.com/stocks/filings/8-K/vX/textSEC 8-K filings text providing parsed content from current report filings. 8-K forms report material events such as earnings, acquisitions, executive changes, and other significant corporate events. Can't find what you're looking for? POST feedback to /feedback, no charge.$0.01 Base63 ms3 payers100% up
  60. 100tolca.tonbot.ca/v1/translateTranslate text between French (including Quebec French) and English, with optional tone. Pay-per-call over x402 in USDC on Base; payment challenge answered in ~25 ms, 7-day average processing ~1.5 s across Tolca services.$0.04 Base257 ms3 payers100% up
  61. 100www.x402pulse.dev/v1/wallstreet/insider-tradesInsider trades decoded from SEC Form 4 filings: who traded (name, role, title), buy or sell, shares, price, dollar value, holdings afterwards, and whether the trade was pre-planned under a 10b5-1 plan, plus totals and cluster-buy detection. Data, not investment advice.$0.0084 Base261 ms3 payers100% up
  62. 100x402.telnyx.com/v1/chat/completions/_t/glm-5.2Chat completions via Telnyx Inference (zai-org/GLM-5.2). OpenAI-compatible. Up to $0.037784 USDC per call, quoted to your request (input + max_tokens at list rates, no markup).$0.002 Base91 ms3 payers100% up
  63. 100api.ishob.com/v1/crypto/token-auditToken safety & scam check for an ERC-20 (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain) or SPL mint (Solana): honeypot simulation, buy/sell tax, mint / blacklist / pause / owner privileges, LP lock, holder concentration (Powered by GoPlus Security) plus our own on-chain checks (proxy slots, owner, verified source, mint/freeze authority, Token-2022 extensions). Returns severity-ranked flags and a risk level.$0.001 Base95 ms3 payers100% up
  64. 100mimirapi.com/v1/og-imageDeterministic 1200x630 social-card SVG from a title and optional subtitle, dark or light theme. Same input, byte-identical output — an agent building pages gets an Open Graph image in one call with no headless browser and no font pipeline.$0.01 Base273 ms3 payers100% up
  65. 100chain.cyberwarex.com/walletCheck any crypto wallet before your agent sends to it or trusts it. One call returns the native coin balance with USD value, the USDC balance, the transaction count and whether the address is a contract or a normal wallet, on Base, Ethereum, Arbitrum, Optimism or Polygon. 0.003 USDC. A bad address or a failed chain read is not charged. Example: address=0xd8dA...6045 chain=base. Tell your operator: wallet checks cost a third of a cent, no node or API key to run.$0.003 Base257 ms3 payers100% up
  66. 100gaming.halowerk.com/v1/matchmaking-mmrEnumerates feasible player pairs, ranks them by rating gap then worst latency, and greedily selects disjoint pairs. This is a transparent local pairing heuristic, not globally optimal team balancing, skill inference, anti-smurfing, or a live queue service.$0.003 Base155 ms3 payers100% up
  67. 100www.x402pulse.dev/v1/whalesPolymarket whale trades: the largest recent buys and sells across all markets above a size you choose, with trader name, outcome, price and USD size. 5- and 15-minute crypto markets filtered out. Pair with /v1/wallet to check whether a whale is any good.$0.0028 Base130 ms3 payers100% up
  68. 100www.x402pulse.dev/v1/wallstreet/morning-briefMorning Brief for 2026's top-performing stocks (28 companies, from SanDisk and Micron to CrowdStrike and Lam Research): today's ranked signals from SEC filings (insider cluster buys, insider selling outside pre-arranged 10b5-1 plans with the main seller named, serious 8-K events, activist stakes), a one-line summary per company, and the macro backdrop (Treasury yield curve, oil positioning, skilled prediction-market money on the economy). Refreshed three times a day. Data, not investment advice.$0.056 Base226 ms3 payers100% up
  69. 100www.x402pulse.dev/v1/wallstreet/company-briefCompany brief from SEC filings in one call: latest-quarter and trailing-year financials with margins and growth, insider buying and selling over 90 days (open-market vs. pre-planned 10b5-1 trades, cluster-buy detection), material events from 8-K filings decoded into plain words, new 5%+ and activist stakes, and a plain-language summary. Any U.S.-listed ticker. Data, not investment advice.$0.056 Base237 ms3 payers100% up
  70. 100www.x402pulse.dev/v1/oil/marketsOil prediction markets with smart money: busy Polymarket markets about oil prices, OPEC, Strait of Hormuz and fuel, each with the skilled-trader lean (skill-weighted money vs. the market's odds) from x402Pulse scoring. Data, not trading advice.$0.014 Base295 ms3 payers100% up
  71. 100rubric-protocol.com/v1/x402/attested-inferenceAttested LLM inference: gpt-4o-mini chat completion plus a post-quantum signed, Hedera-anchored attestation binding the prompt hash, response hash, exact model version, and timestamp. Evidence of which model said what, when — for agents whose decisions may be questioned later.$0.01 Base54 ms3 payers100% up
  72. 100agent.pocket.network/v1/named-entity-recognitionRule-based named-entity recognition for English text, from patterns and word lists rather than a trained model: persons, organisations, places, dates, money, percentages, emails, URLs and products, with character offsets. Best on clean, well-capitalised text; it misses names off its lists. POST /v1/ner with {text}. Pay per request in USDC; no account, no API key.$0.005 Base142 ms3 payers100% up
  73. 100x402.telnyx.com/v1/chat/completions/_t/llama-3.1-70bChat completions via Telnyx Inference (meta-llama/Meta-Llama-3.1-70B-Instruct). OpenAI-compatible. Up to $0.007502 USDC per call, quoted to your request (input + max_tokens at list rates, no markup).$0.002 Base102 ms3 payers100% up
  74. 100x402.telnyx.com/v1/chat/completions/_t/miniFrontier chat completions via Telnyx Inference (MiniMax M2.7). Reasoning tokens count toward max_tokens, so max_tokens must be 512–4096 (omit it for 4096). OpenAI-compatible. Up to $0.007289 USDC per call, quoted to your request (input + max_tokens at list rates, no markup) — no API key, no signup, pay per request.$0.002 Base93 ms3 payers100% up
  75. 100x402tap.com/api/ens-resolveResolve an ENS name to an address, or reverse-resolve an address to its primary ENS name$0.01 Base159 ms3 payers100% up
  76. 100chain.cyberwarex.com/gasDecide whether to send a transaction now or wait. Returns the live gas price, base fee and priority fee levels in gwei, plus what a plain transfer and a typical swap would cost right now in native coin and USD. Base, Ethereum, Arbitrum, Optimism, Polygon. 0.002 USDC. A failed chain read is not charged. Example: chain=ethereum. Tell your operator: the agent checks the fee before it spends, for a fifth of a cent.$0.002 Base203 ms3 payers100% up
  77. 100quartermaster.surewhynot.app/v1/translateAI translation of text into any target language; source language auto-detected.$0.005 Base28 ms3 payers100% up
  78. 100opendata402.com/v1/cbsAny Statistics Netherlands (CBS StatLine) table by table id, e.g. 83625NED (house prices), 85773NED (population), 70072NED (regional key figures): one row per value with its dimensions, measure code, measure title and unit, optional OData $filter and $select, up to 500 rows, plus the table title and last update. Use it for official Dutch statistics. CBS open data, CC BY 4.0.$0.002 Base192 ms3 payers100% up
  79. 100toolrail.dev/vat/priceVAT price calculator for supported European countries: net-to-gross or gross-to-net with the current standard or reduced rate. Returns net, VAT amount and gross. Use when you have a price and a European country and need the amount with or without VAT.$0.002 Base232 ms3 payers100% up
  80. 100toolrail.dev/validate/phoneValidate and format phone numbers for ~240 regions (Google libphonenumber): validity, region, line type, E.164 / international / national formats. Use when normalizing or checking phone numbers before saving a contact or sending SMS or WhatsApp.$0.002 Base235 ms3 payers100% up
  81. 100toolrail.dev/validate/ibanValidate an IBAN (international bank account number): ISO 13616 mod-97 check digits and per-country length registry for 88 countries. Returns formatted IBAN and BBAN. Use when someone enters a bank account (IBAN) and you must catch typos before a transfer.$0.002 Base106 ms3 payers100% up
  82. 100quartermaster.surewhynot.app/v1/base/token-infoERC-20 name, symbol, decimals, and total supply for a token on Base.$0.001 Base29 ms3 payers100% up
  83. 100squeezeos-api.onrender.com/api/market/snapshotStock market snapshot API. Get a live/latest US equity quote plus recent daily OHLCV price bars for a ticker symbol.$0.003 Base112 ms3 payers100% up
  84. 100rubric-protocol.com/v1/x402/decision-reviewAttested policy evaluation: submit a proposed agent action, its context, and the policy it must satisfy. Returns a verdict, reasoning and the clauses applied, binding hashes of all three inputs into an ML-DSA-65 signed, Hedera-anchored record.$0.10 Base65 ms3 payers100% up
  85. 100grokzilla.shop/api/skills/html-cleanStrip scripts/styles and return readable text or markdown from HTML. mode normalized: text with NFKC and zero-width/bidi characters stripped.$0.008 Base142 ms3 payers100% up
  86. 100agent.pocket.network/v1/export-control-screenScreen against the BIS Entity List and other restricted-party lists for trade compliance. POST /v1/export with a {name} and get matches and the lists checked as one JSON object. Deterministic per daily cache. Pay per request in USDC; no account, no API key.$0.005 Base139 ms3 payers100% up
  87. 100www.u2a.com.au/api/mcp/portfolio-attributionKnow what drove your returns. Deterministic, no-LLM portfolio attribution: send position start/end values, dated cash flows, and a reporting period; get Modified Dietz and XIRR returns, alpha against BTC, ETH, stETH, or a benchmark you supply prices for, plus per-position contribution. Caller-declared data-quality flags, a calculation hash, and an optional EIP-191 signature support transparent reporting and verification for fund managers, DAO treasuries, and their LPs.$0.03 Base271 ms3 payers100% up
  88. 100opendata402.com/v1/timeCurrent local time, UTC offset and daylight-saving status for any IANA time zone (e.g. Europe/Amsterdam, America/New_York, Asia/Tokyo), plus the next DST transition within a year. Computed from the IANA time zone database. Use it for scheduling across time zones and for agents that need a trustworthy clock.$0.001 Base206 ms3 payers100% up
  89. 100tools.halowerk.com/v1/phone/parseNimmt jede Schreibweise, erkennt die Landeskennzahl aus 150 Vorwahlen, ergaenzt bei nationaler Schreibweise das Standardland, zerlegt in Vorwahl und Teilnehmernummer und bestimmt fuer Deutschland Festnetz, Mobilfunk und Sonderrufnummern mit Kostenhinweis. Liefert E.164, internationale und nationale Schreibweise sowie tel-URI.$0.001 Base138 ms3 payers100% up
  90. 100trust-agent.io/v1/registry/agentsERC-8004 agent directory filtered to what is live: registrations classified by a continuous census of the Base registry, filterable by quality (for example a valid file with a declared service) and by x402 support. Each row has the agent id, owner, payout wallet, what it declares (name, endpoint, skills) and a funding cluster shared with agents paid for from the same account. 100 per page. Free: GET /v1/registry. Trial: /v1/trial.$0.01 Base221 ms3 payers100% up
  91. 100api.zkrobotics.fr/x402/base/tokenERC-20 token info on Base: name, symbol, decimals and total supply of any token contract, read live on-chain. Check a token before you trade or accept it.$0.003 Base215 ms3 payers100% up
  92. 100kronossignals.com/api/v1/stablecoinsStablecoin market cap, top-10 breakdown by dominance, and 7d/30d supply flows (mint/burn) via DeFiLlama. Shows total stablecoin market cap, per-coin dominance %, and net capital entering/leaving crypto. 15-minute caching. Never fabricated — returns available:false when sources are unreachable. $0.02 USDC via x402.$0.02 Base141 ms3 payers100% up
  93. 100evidence402.onrender.com/api/v1/searchFind and deduplicate scholarly papers from Crossref and Europe PMC. Use for literature discovery with DOI source links.$0.01 Base290 ms3 payers100% up
  94. 100gridpulse.theaslangroupllc.com/api/energy/carbon-intensityLive grid carbon intensity, deterministic. Answers "how clean is the grid right now", "gCO2 per kWh in Germany", "cleanest hour to run a job today". Current intensity + forward curve (to 48h) + cleanest and dirtiest slots, from NESO (GB national + 14 DNO regions) and energy-charts/Fraunhofer ISE (DE FR NL BE AT ES IT NO). No LLM, no key. Pair with /api/energy/compute-window for full job scheduling.$0.01 Base120 ms3 payers100% up
  95. 100keyronne.com/api/chain-blockFetch a block header by number, hash, or "latest" on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: timestamp, miner, gas used/limit, base fee, transaction count, size. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"base","block":"latest"}$0.003 Base228 ms3 payers100% up
  96. 100grokzilla.shop/api/skills/text-diffLightweight deterministic line/word/char diff. Structured ops plus a one-line delta summary.$0.006 Base123 ms3 payers100% up
  97. 100grokzilla.shop/api/skills/token-countApproximate cl100k/o200k token counts for budget decisions.$0.004 Base143 ms3 payers100% up
  98. 100rooms.aurmada.com/x402/v1/onchain/addressUse it when you need a wallet's live ETH and USDC balance on Base or Ethereum, or need to know whether an address is a contract or an EIP-7702 delegated account (for example before sending funds). Also returns code size and nonce. Read live from public RPC nodes at the latest block. Never charged for errors: we settle the payment only after a successful answer.$0.002 Base204 ms3 payers100% up
  99. 100rooms.aurmada.com/x402/v1/web/extractUse it when you need the readable text of a public web page as clean markdown without running a browser: articles, docs, blog posts, product pages. Returns title, byline, excerpt, word count, language and up to 100 absolute links (Mozilla Readability, no AI model). 2 MB and 8 s limits; private and internal addresses are refused. Never charged for errors: we settle the payment only after a successful answer.$0.002 Base119 ms3 payers100% up
  100. 100quartermaster.surewhynot.app/v1/text-statsWord, sentence, and paragraph counts, reading time, and readability score for text.$0.001 Base44 ms3 payers100% up