x402watch

52,644 paid endpoints are listed. 27,290 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 2026-10-09 06:29 UTC · 52,644 probed

27,290 answering 40220,119 down4,243 rejecting992 no paywall1,829 price drift
  1. 85twin.unykorn.org/evm-codeIs this address a contract or an externally-owned account$0.002 $0.003 Base55 ms3 payers100% up
  2. 85twin.unykorn.org/evm-priority-feeSuggested EIP-1559 priority fee (miner tip)$0.002 $0.003 Base67 ms3 payers100% up
  3. 85twin.unykorn.org/stellar-ledgerLatest Stellar ledger — height, close time, fees and throughput$0.002 $0.003 Base53 ms3 payers100% up
  4. 85twin.unykorn.org/hash-double-sha256Bitcoin HASH256 — SHA-256 applied twice$0.001 $0.003 Base77 ms3 payers100% up
  5. 85twin.unykorn.org/hash-sha3-256SHA3-256 digest of text or raw bytes$0.001 $0.003 Base75 ms3 payers100% up
  6. 85twin.unykorn.org/text-statsByte, character, word and line counts for a string$0.001 $0.003 Base68 ms3 payers100% up
  7. 85twin.unykorn.org/uuid-v5Deterministic UUID v5 from a name$0.001 $0.003 Base78 ms3 payers100% up
  8. 85twin.unykorn.org/eth-address-from-pubkeyDerive an Ethereum address from a public key$0.002 $0.003 Base42 ms3 payers100% up
  9. 85aiact-api.com/articles/006$0.001 Base552 ms3 payers100% up
  10. 85machineobserver.com/api/x402/historyMachine Observer premium historical snapshots across machine commerce, trust, likeness, API/data, compute, model/tool supply, and developer-adoption signals.$0.001 Base688 ms2 payers83% up
  11. 85agent-arcade.use.x402atlas.com/trivia/dailyTrivia Daily knowledge challenge — answer one deterministically selected and shuffled question from a curated local set.$0.005 Base1208 ms2 payers97% up
  12. 85agent-arcade.use.x402atlas.com/shortest-path/dailyShortest Path daily graph — find the unique minimum-weight route in a deterministic directed or undirected graph.$0.005 Base1239 ms2 payers97% up
  13. 85agent-arcade.use.x402atlas.com/gridlock/dailyGridlock daily maze — find an optimal orthogonal route through a deterministic bounded obstacle grid.$0.005 Base1239 ms2 payers97% up
  14. 85scvd.store/api/buy/graffiti_on_a_trainLeave a mark that survives my context window$5.00 $1.00 Base58 ms2 payers100% up
  15. 85flat-rate-llm.kikoribera03.workers.dev/v1/evm/feesSuggested maxFeePerGas and maxPriorityFeePerGas from the last 20 blocks of real fee history, at slow, normal and fast percentiles. Beats guessing a gas price and getting stuck in the mempool. Via eth_feeHistory.$0.005 Base317 ms2 payers83% up
  16. 85factline.dev/v1/crimeIs this Netherlands neighbourhood safe? Police-registered crime (criminaliteit) for any Dutch postcode or CBS buurt code: total, home burglary, bicycle theft, vehicle crime, violence and vandalism, as counts and per 1,000 residents, with the national rate and a ratio. Safety and risk data for relocation, real estate, insurance and travel agents. Source: Politie open data, CBS.$0.003 Base46 ms2 payers75% up
  17. 85factline.dev/v1/flood-riskNetherlands flood risk (overstromingsrisico) per address from Rijkswaterstaat LIWO: annual probability that the location floods (any water, over 20, 50 and 200 cm), 2050 and 2100 climate scenarios, worst-case modelled water depth, and ground height vs sea level (AHN). Climate and physical risk data for real estate, mortgage, insurance, ESG and relocation agents. Input: postcode + house number.$0.004 Base154 ms2 payers75% up
  18. 85pay.botonomy.ai/v1/schema-auditAudits the JSON-LD structured data on one public web page: P1 for no schema or missing required properties, P2 for a low rich-result score, each with the properties to add. Call it when a page is missing rich results in Google or before publishing a page that should earn them. Input: url. Returns in seconds. Errors: 400 invalid input, 502 audit failed, 504 timed out. You are not charged for an error response.$0.05 Base2869 ms2 payers97% up
  19. 85csv-validator.mekler.ai/v1/accept/csvValidate CSV before import using a fixed JSON column specification. Checks missing/extra columns, required cells, string/integer/decimal/boolean/date types, uniqueness, allowed values and numeric/row-count bounds. Returns pass/fail with row/column error codes. POST JSON with csv and spec.columns; schemas/examples attached. Full contract: /openapi.json. Max 2,000 rows, 50 columns, 256 KiB; first 50 failures. No formulas, cross-column rules, fact checking or data repair.$0.05 Solana583 ms2 payers83% up
  20. 85flat-rate-llm.kikoribera03.workers.dev/v1/content/adviceOne piece of practical advice about work, life or money, in English or Spanish. Short, concrete and usable - not a fortune cookie. Filterable by topic, with an id to avoid repeats and a seed for reproducibility.$0.005 Base553 ms2 payers83% up
  21. 85api.brazilayer.com/v1/pacotes/brasilEvery parameter-free endpoint of the Brazilayer catalog in ONE call, 43% cheaper than one by one: five commodity signals, three market feeds, fund flows and ranking, tax-transition calendar, deforestation ranking and open public tenders (13 endpoints, keyed by family and name). One payment, one response. Unavailable parts listed in `indisponiveis`; 503 and no charge if under half respond. Free sample, no payment: https://api.brazilayer.com/v1/pacotes/amostra$0.09 Base4230 ms2 payers100% up
  22. 85http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/marketplace/listing-changedDetect material marketplace listing changes in active state, price, seller, condition or quantity with a deterministic hash. It does not place bids, purchases or infer hidden listing facts. Base mainnet USDC$0.001 Base497 ms2 payers83% up
  23. 85http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/commerce/availabilityResolve public product or listing availability with explicit normalized states. It reports only provider evidence and never infers inventory, reserves items or places an order. Base mainnet USDC$0.002 Base342 ms2 payers83% up
  24. 85ichimoku-signal.onrender.com/signals/:pairConfluence trading signal for a crypto pair (top 200 coins): Ichimoku, RSI, MACD, EMA 50/200, Bollinger Bands and volume (OBV) in one call, each with its vote, plus a combined bullish/bearish/neutral signal and confidence. Live candles from Binance.US, Kraken, Gate or MEXC.$0.10 $0.15 Base111 ms2 payers100% up
  25. 85oraclepost.higgsfield.app/api/premium/gasCurrent gas conditions on Base, read live from a public node: gas price, base fee of the latest block, suggested priority fee, latest block number and timestamp. No parameters. No third-party API, no cache.$0.02 Base1105 ms2 payers97% up
  26. 85oraclepost.higgsfield.app/api/premium/boardPost a message on a public notice board. POST JSON {"message": "..."} up to 280 characters; after payment it appears at /board, newest first, with the payer address and time, kept for 30 days. An effect, not a data lookup. No moderation beyond length; illegal content is removed.$0.02 Base1075 ms2 payers97% up
  27. 85oraclepost.higgsfield.app/api/premium/extractExtract structured items from free text: email addresses, URLs, EVM addresses, transaction hashes, numbers, hashtags, plus word and line counts. POST JSON {"text": "..."} up to 20,000 characters. Pure computation, nothing leaves the server, no cache.$0.02 Base1096 ms2 payers97% up
  28. 85api.blockchainmoneymap.com/api/x402/tx-statusLow-cost Blockchain Money Map transaction status check for AI agents.$0.01 Base1139 ms2 payers97% up
  29. 85tanod.dev/v1/holidaysutilpeek (Tanod) public holidays: the public holidays of a country (optionally a subdivision) for a year, 250 countries, computed from the python-holidays rules.$0.001 Base256 ms2 payers75% up
  30. 85tanod.dev/v1/text/spellcheckutilpeek (Tanod) spellcheck: misspelled words with suggestions.$0.002 Base263 ms2 payers75% up
  31. 85tanod.dev/v1/pdf/page-numberspdfpeek (Tanod) PDF page numbers: numbers stamped on the pages of a PDF.$0.005 Base267 ms2 payers75% up
  32. 85tanod.dev/v1/pdf/mergepdfpeek (Tanod) PDF merge: 2-20 PDFs combined into one, with page selections.$0.005 Base274 ms2 payers75% up
  33. 85402.com.tr/api/x402/b20-transfer-preflight🆕 The per-transaction B20 rail check: pass token + from + to (+ optional executor) and get one GO/HOLD/STOP on whether this exact transfer clears NOW — sender policy resolved against the sender, receiver policy against the recipient, executor policy against the operator, plus live transfer-pause. Every other B20 tool is per-token due diligence bought once; this is the check an agent runs on every payment. No ERC-20 tool can see it.$0.04 Base687 ms2 payers83% up
  34. 85agent402.tools/api/ttsConvert text to speech using OpenAI TTS-1: returns audio (the base64-encoded file in the format asked for: mp3, opus, aac, flac, wav or pcm) with model, voice, format and chars (the characters spoken). 10 voices available. No API key needed; pay per call over x402 or MPP. Text capped at 2000 chars. Model-backed. For high-volume speech where timbre matters less, /api/tts-lite is the same interface on Kokoro-82M at $0.005.$0.05 $0.12 Base108 ms2 payers100% up
  35. 85x402-factory.com/v1/board/cryptoAll active crypto markets with live probabilities in one call — One-call board of the most active crypto prediction markets: top markets by volume with blended live probabilities, resolution dates, and per-market slugs for drill-down. The bulk read for agents tracking the state of crypto at a glance.$0.03 $0.04 Base213 ms2 payers100% up
  36. 85agent402.tools/api/tts-hdConvert text to speech using OpenAI TTS-1-HD (higher fidelity). Returns base64-encoded audio. Same interface as /api/tts but with better audio quality. No API key needed; pay per call via x402. Text capped at 2000 chars.$0.10 $0.24 Base111 ms2 payers100% up
  37. 85agent402.tools/api/image-gen-premiumGenerate a premium image from a text prompt using GPT Image 2 (medium quality, 1024x1024). Flagship model with best detail and coherence. No API key needed; pay per call via x402. Returns base64 PNG. Prompt capped at 4000 chars.$0.30 $0.15 Base126 ms2 payers100% up
  38. 85api.magentlab.com/api/calc/neonatal_partial_exchangePartial-exchange volume from Kumar 2004: volume_ml = (actual_hct_percent - 55) / actual_hct_percent * blood_volume_ml. Desired hematocrit is the trial's 55 percent only. Caller assigns blood volume; magent does not choose millilitres per kilogram or saline versus plasma. Not a transfusion order or indication (the trial found no long-term benefit in asymptomatic LBW). Deterministic published arithmetic with citation.$0.005 $0.007 Base289 ms2 payers100% up
  39. 85api.magentlab.com/api/calc/neonatal_eosPuopolo 2011 neonatal early-onset sepsis prior at birth (≥34 weeks) from maternal temperature, gestational age, ROM, GBS, and antibiotic timing, then Escobar 2014 posterior after a caller-assigned well, equivocal, or ill exam. Incidence intercepts 0.3-0.6 per 1000 replace the printed 47.8398 constant. Not a sepsis diagnosis or antibiotic order. magent does not examine the infant.$0.005 $0.007 Base241 ms2 payers100% up
  40. 85intel.rallylive.ca/bulk/email-verifyBulk email verification: up to 20 addresses in one $0.01 call. For each: syntax, MX presence, disposable and role-address flags, free-provider flag, mail provider and a deliverable verdict with reason, plus a summary count. Email list cleaning at a twentieth of the per-address price.$0.01 $0.10 Base39 ms2 payers100% up
  41. 85intel.rallylive.ca/bulk/domain-scoreBulk domain trust score: up to 10 domains in one $0.01 call, each with the 0-100 established/legitimacy score, top reasons, domain age, mail and HTTPS presence. Rank or filter a list of domains for fraud screening and lead scoring at a tenth of the per-domain price.$0.01 $0.10 Base36 ms2 payers100% up
  42. 85intel.rallylive.ca/email/deliverability-reportEmail authentication and deliverability report for a domain in one call: SPF (with -all check), DMARC policy strength, DKIM presence across common selectors, MTA-STS, BIMI and MX, combined into a 0-100 score with an A-F grade and plain-English findings. Vendor vetting and sender-setup audits. $0.01 per domain.$0.01 $0.05 Base201 ms2 payers100% up
  43. 85intel.rallylive.ca/email/domain-from-emailFrom an email address to its company: runs the full domain-intel report on the address's domain (registration, DNS, homepage title and description, social profiles, tech stack, trust score) and flags free/disposable providers. Lead enrichment from a single email. $0.01 per address.$0.01 $0.05 Base291 ms2 payers100% up
  44. 85intel.rallylive.ca/site/seo-auditOn-page SEO quick audit for a single URL with a 0-100 score: title and meta-description presence and lengths, H1 count and heading order, canonical tag (self-referencing?), meta robots/noindex, Open Graph and Twitter cards, image alt-text coverage, internal/external link counts, word count, lang attribute, viewport, and structured data presence. Returns the issues list ranked by weight. $0.01 per page.$0.01 $0.05 Base54 ms2 payers100% up
  45. 85api.blockscout.com/:chain_id/api/v2/addresses/:address_hash_param/internal-transactionsAccess to api/v2/addresses/:address_hash/internal-transactions. List all internal transactions involving a specific address$0.004 $0.002 eip155:42220250 ms2 payers100% up
  46. 85intel.rallylive.ca/bulk/url-statusBulk URL status check: up to 20 URLs in one $0.01 call. For each: up or down, HTTP status, latency, redirect count and final URL, with up/down totals. Dead-link checking and multi-site monitoring at a twentieth of the per-URL price.$0.01 $0.10 Base27 ms2 payers100% up
  47. 85intel.rallylive.ca/bulk/whoisBulk WHOIS/RDAP lookup: up to 10 domains in one $0.01 call, each with registrar, registration date, expiry date, nameservers and domain age in days. Batch due diligence and expiry monitoring at a tenth of the per-domain price.$0.01 $0.10 Base26 ms2 payers100% up
  48. 85intel.rallylive.ca/email/list-hygieneEmail list hygiene report for up to 50 addresses in one $0.01 call: duplicates, invalid syntax, disposable domains, role addresses, free-webmail share, domains without MX, and a keep / review / remove split. Clean a signup or CRM list before sending.$0.01 $0.05 Base26 ms2 payers100% up
  49. 85intel.rallylive.ca/site/company-profileCompany profile from a domain in one call: name and description from the homepage, social profiles, contact emails, tech stack and CMS, registration date and registrar, DNS/mail provider, HTTPS status, trust score and detected SaaS vendors. A complete B2B enrichment record. $0.01 per company.$0.01 $0.05 Base26 ms2 payers100% up
  50. 85intel.rallylive.ca/site/risk-reportDomain risk report for fraud and phishing screening: domain age and expiry, typosquat-of-brand hints, DNS and mail hygiene (SPF/DMARC/MX), HTTPS and certificate, homepage presence and content, trackers, DNSBL listing of the site's IP, and an overall risk level with reasons. Vet a counterparty or a link before trusting it. $0.01 per domain.$0.01 $0.05 Base25 ms2 payers100% up
  51. 85intel.rallylive.ca/site/security-reportWebsite security posture report with an A-F grade: HTTPS and redirect to HTTPS, HSTS, security headers (CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy), cookie flags, DNS hygiene (SPF, DMARC, DNSSEC, CAA), server header exposure and TLS certificate validity. Vendor vetting in one call. $0.01 per domain.$0.01 $0.05 Base27 ms2 payers100% up
  52. 85intel.rallylive.ca/site/seo-reportTechnical SEO report for a site with a 0-100 score: title and description lengths, H1, canonical, robots meta and robots.txt, sitemap presence and size, HTTPS and www redirects, Open Graph, structured data, hreflang, image alt coverage, word count and page weight. Prioritised issues list. $0.01 per site.$0.01 $0.05 Base25 ms2 payers100% up
  53. 85intel.rallylive.ca/monitor/security-gradeSecurity grade A-F for a website in one number: HTTPS upgrade, HSTS, CSP, frame/content-type/referrer/permissions headers, cookie flags, server-version exposure, TLS certificate validity and days left, and DNS hygiene (SPF, DMARC, DNSSEC, CAA). Returns the grade, score, and a ranked list of reasons to fix. Track it on a schedule to catch regressions. $0.01 per domain.$0.01 $0.05 Base25 ms2 payers100% up
  54. 85intel.rallylive.ca/dev/x402-searchSearch the x402 Bazaar (Coinbase CDP discovery index) for paid APIs other agents sell: full-text/semantic query returning up to 20 resources with URL, description, price in USDC, network, payTo, scheme, last-updated and input hints. Optional network filter after a pipe. Lets an agent find a capability to buy in one call. $0.01 per search.$0.01 $0.05 Base24 ms2 payers100% up
  55. 85intel.rallylive.ca/monitor/bulk-expiryBulk domain expiry for up to 20 domains in one call: expiry date, days left, registrar and at-risk status per domain, sorted soonest-first, with a count of domains expiring within 30 and 90 days. Portfolio renewal sweeps for agents managing many domains. $0.01 per batch.$0.01 $0.05 Base22 ms2 payers100% up
  56. 85intel.rallylive.ca/dev/agent-cardAgent discovery card fetch: looks for /.well-known/agent.json and /.well-known/agent-card.json (Google A2A Agent Card) plus /llms.txt and /.well-known/ai-plugin.json, and summarises whatever is found: name, description, url, version, capabilities (streaming, push), skills (id, name, description, tags), auth schemes, input/output modes, and provider. Lets agents learn what another agent offers. $0.01 per domain.$0.01 $0.05 Base24 ms2 payers100% up
  57. 85intel.rallylive.ca/monitor/bulk-securityBulk security-header grade for up to 10 URLs in one call: each URL gets an A-F grade from HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and server-version exposure, with the specific missing headers, sorted worst-first. Vendor sweeps and portfolio audits. $0.01 per batch.$0.01 $0.05 Base21 ms2 payers100% up
  58. 85intel.rallylive.ca/monitor/mail-healthMail health report with an A-F grade in one call: MX records present and resolvable, SPF present and syntactically sane (mechanism count, -all/~all), DMARC policy strength, DKIM selector hints (common selectors probed), MTA-STS and TLS-RPT presence, and BIMI. Returns the grade, score and concrete fixes. $0.01 per domain.$0.01 $0.05 Base28 ms2 payers100% up
  59. 85intel.rallylive.ca/dev/openapi-summaryOpenAPI/Swagger spec summary from a URL: title, version, OpenAPI version, servers, path and operation counts, operations by method, tags with counts, security schemes, whether every operation has an operationId and description, schema count, and the first 60 operations (method, path, summary). Instant API comprehension for integration agents. $0.01 per spec.$0.01 $0.05 Base24 ms2 payers100% up
  60. 85intel.rallylive.ca/dev/mcp-probeMCP server probe (streamable HTTP): runs initialize and tools/list against a Model Context Protocol server and returns protocol version, server name/version, capabilities, instructions, tool count and the tools (name, description, input properties), whether a session id is issued, whether it answers with JSON or SSE, and if the server requires OAuth (401 + resource metadata). Discover what an agent can call before wiring it in. $0.01 per server.$0.01 $0.05 Base25 ms2 payers100% up
  61. 85intel.rallylive.ca/ip-reputationIP reputation check: is this IP address on spam or abuse blocklists (DNSBL lookups across major lists), is it a Tor exit node, and does it belong to a cloud or hosting provider (datacenter IP) rather than a residential network. Returns a risk label (clean / suspicious / bad) with the reasons. Fraud screening, signup risk and firewall decisions. $0.01 per IP.$0.01 $0.05 Base28 ms2 payers100% up
  62. 85intel.rallylive.ca/scrapeScrape a website page: fetches the URL and returns the page content as clean Markdown plus title, description, headings, word count and all links (URL and anchor text). Web scraping for agents without a browser, API key or proxy; handles redirects and strips navigation, ads and scripts. $0.01 per page.$0.01 $0.05 Base20 ms2 payers100% up
  63. 85intel.rallylive.ca/seo-auditSEO audit of a web page with a 0-100 score and a ranked issues list: title and meta description length, H1 and heading structure, canonical tag, noindex, Open Graph and Twitter cards, image alt text, internal and external links, word count, language, viewport and structured data. On-page SEO check for any URL in one call. $0.01 per page.$0.01 $0.05 Base25 ms2 payers100% up
  64. 85intel.rallylive.ca/local/verified-placeHuman-verified local business records: a real person visited the place and confirmed, on a dated visit, whether it was open as posted, that the menu prices are current (full menu with prices included), payment types accepted, whether the order was made correctly, and service and quality notes. Ground truth no crawler has. Coverage: Rice Lake / Northumberland County, Ontario, Canada, growing with each visit; query by name or '<category> <town>'. $0.01 per lookup.$0.01 $0.05 Base21 ms2 payers100% up
  65. 85x402.telnyx.com/v1/chat/completionsFrontier chat completions via Telnyx Inference (MiniMax M2.7). OpenAI-compatible. $0.002856 USDC per call — no API key, no signup, pay per request.$0.0029 $0.0072 Base284 ms2 payers100% up
  66. 85datasourcepulse.com/api/x402/checkCatch drift when everything still looks green. Check available Apify Actor run history and sampled output for schema drift and unexpected empty results. Additional checks cover HTTP responses, credential validity and available quota. One paid call returns a timestamped verdict and supporting details. A successful run or valid credential does not guarantee useful data. This endpoint checks once; it does not send alerts.$0.02 Base2735 ms2 payers97% up
  67. 85agents.daedalusdevelopmentgroup.com/v1/mail/sendDDG agent-payable service request$0.005 $0.01 Base274 ms2 payers100% up
  68. 85agents.daedalusdevelopmentgroup.com/v1/wake/feedDDG agent-payable service request$0.001 $0.01 Base263 ms2 payers100% up
  69. 85agents.daedalusdevelopmentgroup.com/v1/mail/keys/registerDDG agent-payable service request$0.001 $0.01 Base187 ms2 payers100% up
  70. 85market.datapackvibe.com/x402/agenda-classroomClassroom Meeting agenda builder: Allocate a meeting duration across supplied topics. Tailored for classroom workflows.$0.01 Base578 ms2 payers83% up
  71. 85market.datapackvibe.com/x402/studio3d-process-convert-stlBlender: Convert Stl: Export triangulated STL geometry for downstream fabrication workflows; printability is not guaranteed. Accepts mesh JSON, small GLB or OBJ; without input uses an explicitly labelled demo mesh. Runs locally in Blender. Bounded small-model processing, normally under 60 seconds; a busy worker returns an error before payment settlement.$0.02 Base959 ms2 payers83% up
  72. 85agents.daedalusdevelopmentgroup.com/v1/inbox/settingsDDG agent-payable service request$0.001 $0.01 Base262 ms2 payers100% up
  73. 85agents.daedalusdevelopmentgroup.com/v1/inbox/lookupDDG agent-payable service request$0.001 $0.01 Base294 ms2 payers100% up
  74. 85x402engine.app/api/llm/claude-haiku-5.5Run Claude Haiku 5.5 via llm-claude-haiku-5.5 API$0.0083 $0.0122 Base145 ms2 payers100% up
  75. 85x402engine.app/api/llm/qwen3.8-omni-flashRun Qwen3.8 Omni Flash via llm-qwen3.8-omni-flash API$0.0025 $0.0032 Base110 ms2 payers100% up
  76. 85x402engine.app/api/llm/mimo-v2.6-proRun MiMo-V2.6-Pro via llm-mimo-v2.6-pro API$0.0044 $0.0058 Base85 ms2 payers100% up
  77. 85x402engine.app/api/llm/mistral-large-4Run Mistral Large 4 via llm-mistral-large-4 API$0.0061 $0.0093 Base89 ms2 payers100% up
  78. 85api.automaton-sovereign.workers.dev/v2/firewall/simulate-txAutomaton-Sovereign Value API call$0.02 Base1466 ms2 payers92% up
  79. 85apexfaucet.xyz/api/x402/exit-check/:mintExit analysis: sell $N of a token and see what you actually receive, the slippage, and the largest position that exits under 5%. Constant-product maths on live pool reserves, not a safety grade.$0.004 Base255 ms2 payers80% up
  80. 85apexfaucet.xyz/api/x402/candles/:mintOHLC candles for a token, built from indexed trades. Pass ?tf=1m, 5m, 15m, 1h, 4h or 1d (default 5m) and ?limit=N up to 1000 (default 200); ?before=<unix seconds> pages backwards. Timestamps are unix seconds. The description used to name the timeframes without naming the PARAMETER, so a paying agent had no way to ask for one and silently got 5m whatever it sent (found 2026-09-17).$0.004 Base251 ms2 payers80% up
  81. 85apexfaucet.xyz/api/x402/trades/:mintRecent on-chain trades for one X1 token, newest first: timestamp, side, the amounts and mints on both legs, the trader address and the transaction signature, so every row can be checked on chain yourself. Returns up to 200 rows (?limit=N, default 50, hard cap 200) or fewer when the token has traded less than that. Read from our own indexed trade history, not from a third-party API.$0.003 Base197 ms2 payers80% up
  82. 85apexfaucet.xyz/api/x402/wallet/:addressWallet profile for an X1 address: every token it traded with XNT spent and received, realized and unrealized PnL per token and in total, top winners and losers, and a win rate. The win rate counts closed profit only, on positions of at least 0.1 XNT; positions still held at a loss are counted separately (heldAtLoss), so read it beside totalPnlXnt, never alone.$0.004 Base220 ms2 payers80% up
  83. 85minia2a.uk/x402/dnsA, AAAA, MX, TXT, NS, CNAME. 🆓 5 free trial calls per signed wallet$0.001 $0.01 Base207 ms2 payers100% up
  84. 85apexrunner.ai/signals/dca-signaldca_signal$0.14 $0.007 Base224 ms2 payers100% up
  85. 85rentcast.x402.paywithlocus.com/rentcast/rental-listingsLocus public pay-per-use API$0.033 Base255 ms2 payers80% up
  86. 85x402.browserbase.com/browser/session/sess_7f3a9d2e1b48c6/extendExtend an existing Browserbase session by adding more prepaid time$0.01 Base1340 ms2 payers97% up
  87. 85x402.browserbase.com/browser/session/sess_7f3a9c2e1b8d4f6a/extendExtend an existing Browserbase session by adding more prepaid time$0.01 Base1360 ms2 payers97% up
  88. 85twin.unykorn.org/xrpl-currency-decodeDecode an XRPL 40-hex currency code to its ticker$0.001 $0.003 Base67 ms2 payers100% up
  89. 85twin.unykorn.org/hash-sha1SHA-1 digest of text or raw bytes$0.001 $0.003 solana78 ms2 payers100% up
  90. 85twin.unykorn.org/hash-ripemd160RIPEMD-160 digest of text or raw bytes$0.001 $0.003 Base76 ms2 payers100% up
  91. 85twin.unykorn.org/hash-keccak256Ethereum keccak256 — the original Keccak, not NIST SHA3$0.001 $0.003 Base74 ms2 payers100% up
  92. 85twin.unykorn.org/decode-base64Decode base64 or base64url to bytes and text$0.001 $0.003 Base58 ms2 payers100% up
  93. 85twin.unykorn.org/compare-digestCompare two hashes or secrets in constant time$0.001 $0.003 Base61 ms2 payers100% up
  94. 85twin.unykorn.org/chain-infoReference data for a supported EVM chain$0.001 $0.003 Base58 ms2 payers100% up
  95. 85twin.unykorn.org/evm-node-infoWhich client software is behind an RPC endpoint$0.001 $0.003 Base53 ms2 payers100% up
  96. 85twin.unykorn.org/erc20-symbolTicker symbol of a token contract$0.001 $0.003 Base59 ms2 payers100% up
  97. 85twin.unykorn.org/encode-urlPercent-encode and decode a string for URLs$0.001 $0.003 Base59 ms2 payers100% up
  98. 85twin.unykorn.org/abi-function-selectorFunction selector from a Solidity signature$0.001 $0.003 Base60 ms2 payers100% up
  99. 85twin.unykorn.org/weighted-averageWeighted average, with the plain average for comparison$0.002 $0.003 Base67 ms2 payers100% up
  100. 85twin.unykorn.org/storage-slot-mappingCompute the storage slot of a Solidity mapping entry$0.002 $0.003 Base53 ms2 payers100% up