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.vextorium.com/v1/timezone-convertConvert a date and time (or now) from one IANA time zone to up to 25 others: local time, UTC offset, abbreviation, daylight saving flag, weekday, hour difference, UTC and Unix timestamp.$0.003 Solana273 ms3 payers100% up
  2. 100api.vextorium.com/v1/npm-packagenpm package profile: latest version, description, license, repository, dependencies, unpacked size, weekly and monthly downloads, maintainers and deprecation flag. For dependency choice and audits.$0.003 Solana287 ms3 payers100% up
  3. 100api.vextorium.com/v1/ip-subnetIPv4/IPv6 subnet calculator: network, mask, wildcard, broadcast, first/last host, usable hosts, address type (private, public, loopback...) and whether a given IP belongs to the subnet.$0.003 Solana232 ms3 payers100% up
  4. 100api.vextorium.com/v1/image-paletteDominant colors of an image (URL or base64) with their share, in HEX and RGB, plus the average color and light/dark tone. For brand palettes, themes or tagging images by color.$0.003 Solana221 ms3 payers100% up
  5. 100api.vextorium.com/v1/eu-rent-inflationYear-on-year change in actual rents for housing (HICP component) for any European country, the EU or the euro area; without a country, a ranking. Official Eurostat data.$0.003 Solana224 ms3 payers100% up
  6. 100api.vextorium.com/v1/eu-minimum-wagesGross monthly minimum wage in euros of European countries that have one (ranking), or the evolution for one country. Official Eurostat data.$0.003 Solana247 ms3 payers100% up
  7. 100api.vextorium.com/v1/detect-languageDetect the language of a text without AI (55 languages, statistical langdetect model) with probability and alternatives. Fast and cheap for routing messages or choosing a translation.$0.003 Solana249 ms3 payers100% up
  8. 100api.vextorium.com/v1/coordinate-convertConvert coordinates between decimal degrees, degrees-minutes-seconds (40°25'00"N), UTM (zone, easting, northing) and geohash, in any direction, plus a map link.$0.003 Solana218 ms3 payers100% up
  9. 100api.vextorium.com/v1/abi-encodeEncode a contract function call (calldata) from its signature and arguments, e.g. transfer(address,uint256) with [to, amount]: selector and hex data ready to sign or simulate.$0.003 Solana261 ms3 payers100% up
  10. 100api.vextorium.com/v1/us-airport-delaysCurrent delays and closures at US airports from the FAA: ground delay programs, ground stops, arrival/departure delays and closures with reason and duration; filter by IATA code (JFK, LAX, ORD...).$0.003 Solana219 ms3 payers100% up
  11. 100api.vextorium.com/v1/chain-infoReference data for a blockchain by its chainId: name, gas/native token, block explorers, number of public RPCs and website. Utility for multi-chain agents. Live from chainid.network (ethereum-lists, open data).$0.003 Solana207 ms3 payers100% up
  12. 100api.vextorium.com/v1/spain-business-daysSpanish business-day calculator: count business days between dates or add N business days, using Spain's national public holidays.$0.003 Solana206 ms3 payers100% up
  13. 100api.vextorium.com/v1/unit-convertConvert units of length, mass, volume, area, speed, temperature, data (KB vs KiB), energy, pressure, time and power, metric and imperial, with exact factors.$0.003 Solana198 ms3 payers100% up
  14. 100api.vextorium.com/v1/spain-tax-id-validateSpanish tax ID validation (DNI/NIF, NIE and company CIF) with check-digit verification. Computed locally; the ID is not stored.$0.003 Solana226 ms3 payers100% up
  15. 100api.vextorium.com/v1/moon-phaseMoon phase on a date: name, illuminated percentage, lunar age and the next new and full moon dates. Local astronomical calculation.$0.003 Solana208 ms3 payers100% up
  16. 100api.vextorium.com/v1/crypto-priceCurrent price of up to 50 cryptocurrencies by ticker (BTC, ETH, SOL, XRP...) in USD or any ECB currency (EUR, GBP, JPY...). Covers the ~190 largest coins listed by alternative.me; currency conversion with ECB reference rates.$0.003 Solana212 ms3 payers100% up
  17. 100api.vextorium.com/v1/extractive-summaryExtractive summary without AI: picks the most representative sentences (term frequency and position scoring) and returns them in original order, with the reduction percentage. Deterministic and instant.$0.003 Solana212 ms3 payers100% up
  18. 100api.vextorium.com/v1/evm-utilsEVM developer utilities: keccak256 hash, function selector from a signature, EIP-55 checksum address and wei/gwei/ether conversion.$0.003 Solana203 ms3 payers100% up
  19. 100api.vextorium.com/v1/date-calculatorDate facts (weekday, ISO week, quarter, day of year, leap year), exact difference between two dates in years, months, days, weeks and Mon-Fri working days, and adding or subtracting days, months or years (end-of-month safe).$0.003 Solana207 ms3 payers100% up
  20. 100api.vextorium.com/v1/barcode-generateGenerate a barcode as SVG (EAN-13, EAN-8, UPC-A, ISBN, ISSN, Code 128, Code 39, ITF, GS1-128...) for labels and products, computing the check digit when missing.$0.003 Solana216 ms3 payers100% up
  21. 100api.vextorium.com/v1/world-inflationYear-on-year inflation: for European countries the monthly harmonised CPI from Eurostat, for the rest the annual CPI inflation of the World Bank; without a country, a world ranking (latest year available, World Bank).$0.004 Solana219 ms3 payers100% up
  22. 100api.vextorium.com/v1/eu-vat-viesCheck in the European Commission's VIES whether an EU VAT number is registered for intra-community trade, with name and address where the country publishes them. Needed to invoice other EU businesses without VAT.$0.004 Solana238 ms3 payers100% up
  23. 100api.vextorium.com/v1/hashOne endpoint for hashing and encoding: sha256, sha512, sha3, keccak256, md5, sha1, blake2, ripemd160, crc32, all-hashes-at-once, HMAC, base64/base64url, hex, URL and base58 encode/decode, JWT decode (with expiry check) and UUID v4/v5. Input as text, hex or base64.$0.0045 Solana221 ms3 payers100% up
  24. 100api.vextorium.com/v1/security-headersWebsite security headers audit: HTTPS, HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and cookie flags, with a score.$0.005 Solana205 ms3 payers100% up
  25. 100api.vextorium.com/v1/eu-tendersPublic tenders and contract awards from all EU countries published in TED (Official Journal of the EU) by keyword and country: title, buyer, notice type, date, tender deadline, estimated value, CPV codes and link. Option: only open tenders.$0.005 Solana226 ms3 payers100% up
  26. 100api.vextorium.com/v1/broken-linksCheck whether a list of URLs, or every link on a page, works: HTTP status, final URL after redirects and broken links first. Up to 50 URLs per call, checked in parallel.$0.005 Solana222 ms3 payers100% up
  27. 100api.vextorium.com/v1/sanctions-screeningScreen a person, company, vessel or entity against the EU consolidated financial sanctions list and the US OFAC SDN list, with fuzzy matching of names and aliases, program, type, countries and reference. For KYC/AML before paying or onboarding.$0.006 Solana201 ms3 payers100% up
  28. 100api.vextorium.com/v1/uuidGenerate cryptographically secure unique IDs: UUID v4, time-sortable UUID v7, ULID, NanoID, hex, base58 or prefixed tokens (e.g. ord_...), up to 1000 per call.$0.003 Solana280 ms3 payers100% up
  29. 100api.vextorium.com/v1/us-treasury-auctionsUS Treasury debt auctions (bills, notes, bonds, TIPS, FRNs): upcoming announced auctions or recent results with term, offering amount, high yield and bid-to-cover demand. Official Fiscal Data.$0.003 Solana267 ms3 payers100% up
  30. 100api.vextorium.com/v1/us-cpiUS inflation (CPI-U): year-on-year headline, core (ex food and energy), energy and food rates, month by month. US Bureau of Labor Statistics, public domain.$0.003 Solana274 ms3 payers100% up
  31. 100api.vextorium.com/v1/text-similaritySimilarity between two texts without AI: TF-IDF cosine, vocabulary Jaccard and character-trigram Jaccard (catches edited copies), shared words and a verdict. For duplicates, plagiarism checks and deduplication.$0.003 Solana248 ms3 payers100% up
  32. 100api.vextorium.com/v1/text-chunkSplit long text into overlapping chunks for RAG and embeddings, by characters, words or estimated tokens, keeping sentences or paragraphs whole, with each chunk's position and size.$0.003 Solana240 ms3 payers100% up
  33. 100api.vextorium.com/v1/qr-generateGenerate a QR code as SVG or PNG (base64 and data URI) for any text, URL, payment link, Wi-Fi or vCard, with error-correction level, scale and colors.$0.003 Solana272 ms3 payers100% up
  34. 100api.vextorium.com/v1/pypi-packagePython package profile from PyPI: latest version and date, summary, license, required Python, links, dependencies, number of versions and yanked flag.$0.003 Solana254 ms3 payers100% up
  35. 100api.vextorium.com/v1/pubmed-searchSearch biomedical literature indexed in PubMed, via OpenAlex (CC0): title, authors, journal, date, DOI, PMID, citation count and open-access link, newest first, with optional year filter. Metadata only (no abstracts).$0.003 Solana239 ms3 payers100% up
  36. 100api.vextorium.com/v1/pii-redactRedact personal data from text without AI: emails, phone numbers, IBANs, card numbers (Luhn-checked), Spanish DNI/NIE, IPs, crypto addresses and URLs, replaced by labels ([EMAIL_1]) or asterisks. Before sending text to an LLM or sharing logs. Text is not stored.$0.003 Solana248 ms3 payers100% up
  37. 100api.vextorium.com/v1/password-strengthEstimate password strength with Dropbox's zxcvbn: score 0-4, estimated guesses and crack time for online and offline attacks, weak patterns found (dictionary, dates, sequences...) and tips. Evaluated in memory, never stored or logged.$0.003 Solana226 ms3 payers100% up
  38. 100api.vextorium.com/v1/llm-token-countCount the tokens of a text with OpenAI tokenizers (o200k for GPT-4o/4.1/5, cl100k for GPT-4/3.5) plus estimates for Claude, Llama and Gemini, with characters per token. Budget LLM calls and split contexts.$0.003 Solana227 ms3 payers100% up
  39. 100api.vextorium.com/v1/json-diffDeep comparison of two JSON documents: added, removed and changed values with their exact path, optionally ignoring list order. Detect changes in API responses, configs or data snapshots.$0.003 Solana219 ms3 payers100% up
  40. 100api.vextorium.com/v1/list-compareCompare two lists (emails, IDs, wallets, SKUs...): items in both, only in A, only in B, duplicates within each and union, with counts. Up to 100,000 items per list.$0.003 Solana206 ms3 payers100% up
  41. 100api.vextorium.com/v1/isin-validateValidate a securities ISIN (ISO 6166): format, check digit, issuing country and embedded CUSIP (US/CA, with its own check) or SEDOL (GB/IE). Computed locally; nothing stored.$0.003 Solana202 ms3 payers100% up
  42. 100api.vextorium.com/v1/eu-populationPopulation on 1 January of every European country (ranking) or the evolution of one with annual growth. Official Eurostat data.$0.003 Solana197 ms3 payers100% up
  43. 100api.vextorium.com/v1/us-jobs-reportUS labor market: unemployment rate, nonfarm payrolls with monthly job change, and average hourly earnings with annual growth. US Bureau of Labor Statistics, public domain.$0.003 Solana198 ms3 payers100% up
  44. 100api.vextorium.com/v1/ssl-certificateTLS certificate of a domain: issuer, validity dates, days until expiry, names covered (SAN), whether it matches the domain and is trusted, TLS version and cipher. For uptime and security monitoring.$0.003 Solana208 ms3 payers100% up
  45. 100api.vextorium.com/v1/lei-validateValidate a Legal Entity Identifier (LEI, ISO 17442): 20-character format and mod-97 check digits, split into LOU prefix and entity part. Computed locally; does not query GLEIF.$0.003 Solana209 ms3 payers100% up
  46. 100api.vextorium.com/v1/keywordsExtract keywords and keyphrases from a text without AI (RAKE algorithm scoring frequency and degree), in Spanish or English, plus most frequent words. For tagging, indexing and SEO.$0.003 Solana242 ms3 payers100% up
  47. 100api.vextorium.com/v1/impermanent-lossImpermanent loss calculator for Uniswap v2 (full range) and v3/v4 concentrated ranges: IL vs holding, out-of-range flag and final token mix.$0.003 Solana201 ms3 payers100% up
  48. 100api.vextorium.com/v1/economic-calendarUpcoming macro events with UTC date and time: US BLS releases (jobs report, CPI, PPI, JOLTS, wages...), Federal Reserve FOMC rate decisions and ECB monetary policy decisions. Filter by days ahead, text or high-impact only.$0.003 Solana205 ms3 payers100% up
  49. 100api.vextorium.com/v1/us-ipos-upcomingUS IPOs and offerings in the pipeline: latest S-1 and F-1 (foreign issuers) registration statements, amendments and final 424B4 prospectuses (priced), with company, stage, date and link.$0.004 Solana223 ms3 payers100% up
  50. 100api.vextorium.com/v1/us-treasury-yield-curveLatest US Treasury par yield curve (1 month to 30 years), change in basis points versus N days ago, 10y-2y and 10y-3m spreads and inversion flag. Official US Treasury data (public domain).$0.004 Solana217 ms3 payers100% up
  51. 100api.vextorium.com/v1/fda-recallsRecalls enforced by the US FDA for drugs, food or medical devices, latest or by keyword: product, reason, risk class (I-III), company, country, distribution and status. openFDA data (CC0). Not medical advice.$0.004 Solana224 ms3 payers100% up
  52. 100api.vextorium.com/v1/euro-yield-curveEuro area AAA government bond yield curve (zero-coupon, 3 months to 30 years) estimated by the ECB, with change in basis points versus N days ago and the 10y-2y slope.$0.004 Solana206 ms3 payers100% up
  53. 100api.vextorium.com/v1/eu-tourismMonthly nights spent in tourist accommodation (hotels, apartments, campsites) in any European country with year-on-year change; without a country, a ranking for the latest month. Official Eurostat data.$0.004 Solana215 ms3 payers100% up
  54. 100api.vextorium.com/v1/company-filingsLatest regulatory filings of a US listed company (8-K material events, 10-Q, 10-K, insider Form 4, 13D/G...) with date, 8-K items and direct document link. Optional filter by form type.$0.004 Solana203 ms3 payers100% up
  55. 100api.vextorium.com/v1/agent-readinessAI agent readiness audit$0.006 Base214 ms3 payers100% up
  56. 100api.vextorium.com/v1/apr-apyConvert APR to APY or APY to APR for any compounding frequency (continuous, daily, hourly, per block...) and optionally project the final value and gain of a deposit over N days. Useful to compare DeFi yields.$0.003 Base217 ms3 payers100% up
  57. 100base-gas-x402-production.up.railway.app/gas/compareWhat the same transaction costs right now on Base, Optimism, Arbitrum and Ethereum, in USD, cheapest chain first.$0.01 Base259 ms3 payers100% up
  58. 100agent402.tools/api/address-labelLabel a known EVM address from a curated, committed dataset: major stablecoin + token contracts (the USDC and USDG contracts of every EVM chain we settle on, USDC on Ethereum, USDT, DAI, WETH, WBTC), DEX routers (Uniswap, 1inch, 0x), canonical L1↔L2 bridges, large exchange hot/cold wallets, and burn/system addresses. Deterministic and offline - the provenance field states the dataset revision. Unknown addresses return {found:false}, not an error.$0.002 Base89 ms3 payers100% up
  59. 100agent402.tools/api/coin-searchResolve a name or ticker to coin ids: full-text search returning matching coins (id, symbol, name, market cap rank, ordered by rank), exchanges (id, name, market type) and categories (id, name), plus NFT collections. `limit` per group 1-50 (default 10). The id resolver for every other coin tool: an agent holding "PEPE" or "render" gets the canonical id here before calling coin-profile, coin-ohlc or coin-history. Cached in-process for 5 minutes. Data provided by CoinGecko.$0.005 Base142 ms3 payers100% up
  60. 100api.sitecheck-api.workers.dev/api/email-checkE-mail pre-check without SMTP: syntax, whether the domain can receive mail (MX or implicit MX, null MX, non-existent domain), disposable domain (9,000+ domain CC0 list), role account (info@, sales@...), free provider and a typo suggestion (gmial.com -> gmail.com). Verdict invalid / risky / unknown. Up to 50 addresses per call with emails=.$0.002 Base46 ms3 payers100% up
  61. 100api.sitecheck-api.workers.dev/api/eu-tendersActive EU public tenders from TED matching words, optionally for one buyer country: notice number, title, buyer, country, publication date, deadline, CPV codes and link, newest first. Country is an ISO alpha-3 code (DEU, FRA, POL). Attribution: TED, EU open data.$0.002 Base48 ms3 payers100% up
  62. 100api.sitecheck-api.workers.dev/api/congressUS federal bills from Congress.gov (Library of Congress). Keyword search (q) runs over the 250 most recently updated bills of a Congress, since the API has no full-text search; each match gets its sponsor, status and latest action. A bill number (bill=hr1234-119) returns its cosponsor count, committees and up to 30 actions. Public domain.$0.002 Base30 ms3 payers100% up
  63. 100api.vextorium.com/v1/csv-cleanCSV cleaning and normalization to JSON: column names, types, duplicates and empty values. Data is processed in memory and not stored.$0.02 Solana234 ms3 payers100% up
  64. 100api.vextorium.com/v1/us-crypto-regulationLatest official US government documents that affect crypto and markets: SEC press releases, litigation releases, statements and speeches, CFTC press releases, White House news and presidential actions. Filter by crypto relevance, source, keyword and days; optional 2-3 sentence AI summary of each document (Spanish or English). Public-domain sources with links to the originals.$0.018 Solana209 ms3 payers100% up
  65. 100api.vextorium.com/v1/pnl-calculatorTrade result: gross and net profit or loss after entry/exit fees and funding, return on margin, price change, break-even price and notional. Long or short, with leverage.$0.003 Base205 ms3 payers100% up
  66. 100api.vextorium.com/v1/csv-sqlRun a read-only SQL query (SELECT/WITH, WHERE, GROUP BY, ORDER BY, window functions...) over a CSV loaded as table «datos» in a temporary in-memory SQLite database, and get the rows as JSON.$0.004 Base191 ms3 payers100% up
  67. 100api.vextorium.com/v1/spain-boe-summarySpanish Official State Gazette (BOE) daily summary: every item of a given day with section, department and official links, filterable by section (e.g. civil service exams 'oposiciones', appointments, public procurement), department or title keywords.$0.004 Base206 ms3 payers100% up
  68. 100agent402.tools/api/dnsResolve one common DNS record type for a domain: answers name, type and records[] as the resolver returns them. Types: A, AAAA (addresses as strings), MX ({exchange, priority} objects), TXT (each record an array of its strings), NS and CNAME (hostnames). For SPF, DMARC or a full mail-security read use spf-check, dmarc-check or email-deliverability.$0.001 Base117 ms3 payers100% up
  69. 100x402.glassnode.com/v1/metadata/metricMetric Metadata — Returns metadata for a single metric: its supported parameters and allowed values, available time range, documentation and Studio links, and descriptors such as name, group, and tags. Requires the path parameter. Data by Glassnode.$0.01 Base177 ms3 payers100% up
  70. 100agent402.tools/api/code-runCode execution ($0.020/call via x402 or MPP)$0.02 Base150 ms3 payers100% up
  71. 100agent402.tools/api/reverse-geocodeResolve a lat/lon to a structured postal address: road, house number, city, state, postcode, country (with ISO code). No key.$0.001 Base133 ms3 payers100% up
  72. 100agent402.tools/api/fred-searchFull-text search across FRED's ~800,000 economic time series. Returns series IDs (use with /api/fred-series), titles, frequency, units, and a popularity score.$0.005 Base127 ms3 payers100% up
  73. 100agent402.tools/api/usdc-balanceRead the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, Sei, or Arc. Read-only on-chain call. The minimal single-token read for payment flows - for EVERY token a wallet holds in one call use wallet-balance.$0.003 Base88 ms3 payers100% up
  74. 100agent402.tools/api/x402/seller-trustTrust evidence for any x402 seller origin: is it indexed, does its manifest parse, how many tools does it publish, which chains does it actually advertise, how many settled calls has it been observed receiving on-chain, and would our own Smart Order Router spend buyer money on it, in either of its.$0.005 Base101 ms3 payers100% up
  75. 100x402.glassnode.com/v1/metrics/indicators/accumulation_trend_scoreAccumulation Trend Score — Accumulation Trend Score is an indicator that reflects the relative size of entities actively accumulating coins on-chain in terms of their BTC holdings. The scale combines the size of an entity's balance (its participation score) with the amount of new coins it has acquired or sold over the last month (its balance change score). Data by Glassnode.$0.05 Base165 ms3 payers100% up
  76. 100agent402.tools/api/price-coingeckoLive spot price for up to 25 coins by coin id, one row per id in the order asked: prices[] of {id, price, change24h, lastUpdated}. Identify coins by their coin ID slug (bitcoin, ethereum, solana, usd-coin, ...), as an array or a comma-separated string; for ticker symbols (BTC, ETH) plus volume and market cap use crypto-price. Defaults to USD; pass vsCurrency to denominate in EUR, JPY, ETH, BTC, etc. change24h is filled only when include24hChange is true.$0.001 Base92 ms3 payers100% up
  77. 100agent402.tools/v1/images/fastGenerate an image from a text prompt at a flat price per picture, no token math and no subscription: the OpenAI images request shape in, base64 PNG or JPEG out, with an automatic fallback model so a provider outage does not become your error. Use it when an agent needs a picture cheaply and predictably.$0.02 Base113 ms3 payers100% up
  78. 100agent402.tools/api/onchain-sql-schemaThe table + column schema for the onchain-sql tool - every queryable table (base.events, base.transactions, base.blocks, base.decoded_user_operations, base.transaction_attributions, solana.instructions, …) with its columns and types. Fetch once, then write SQL with confidence.$0.002 Base108 ms3 payers100% up
  79. 100agent402.tools/api/route/execute-plusDescribe a task (or name a slug) and the Smart Order Router resolves the best-matching tool and RUNS it in the same call - flat $0.05 covering any tool listed at $0.04 or less, from THIS host's catalog or any external seller in the open index - x402 sellers, or MPP sellers on Tempo (Agent402 buys.$0.05 Base137 ms3 payers100% up
  80. 100agent402.tools/api/geo-distanceGreat-circle distance between two latitude/longitude points using the haversine formula. Returns kilometers and miles. Deterministic.$0.001 Base128 ms3 payers100% up
  81. 100agent402.tools/api/annuityPresent and future value of a level annuity (equal periodic payments). Supports an ordinary annuity (payments at period end) and an annuity-due (payments at period start).$0.001 Base113 ms3 payers100% up
  82. 100agent402.tools/api/global-defiGlobal DeFi snapshot: DeFi market cap (USD), ETH market cap, DeFi-to-ETH ratio, 24h DeFi trading volume, DeFi dominance % of the whole crypto market, and the top DeFi coin with its share of DeFi. The DeFi companion of crypto-global (whole-market caps and BTC/ETH dominance) and of defi-tvl (locked value, a different measure). Cached in-process for 5 minutes. Data provided by CoinGecko.$0.005 Base122 ms3 payers100% up
  83. 100agent402.tools/api/weather-hourlyHourly forecast (global) ($0.002/call via x402 or MPP)$0.002 solana97 ms3 payers100% up
  84. 100agent402.tools/api/weather-daily7-day daily weather forecast for any location: high/low temp, precipitation sum and probability, max wind, UV index, sunrise/sunset. No key, global.$0.002 Base106 ms3 payers100% up
  85. 100agent402.tools/api/fred-release-calendarUpcoming and very-recent US economic data release dates - CPI, employment, GDP, FOMC minutes, Treasury auctions, etc. Useful for scheduling agents around event-driven moves. The window starts at today's date in US Central time (America/Chicago, FRED's zone).$0.005 Base136 ms3 payers100% up
  86. 100agent402.tools/api/exchange-ratesBTC-denominated exchange rates for ~60 units: crypto (ETH, LTC, BNB, SOL, ...), fiat (USD, EUR, JPY, ...) and commodities (gold, silver ounces), each as units per 1 BTC with name and type. Optional `currencies` filter (comma-separated unit codes) and `type` filter (crypto, fiat, commodity).$0.005 Base101 ms3 payers100% up
  87. 100agent402.tools/api/coin-categoriesCoin categories (Layer 1, Meme, AI, DeFi, Stablecoins, RWA, ...) ranked by market cap, with 24h market cap change %, 24h volume and the top-3 coins per category. Order by market_cap_desc (default), market_cap_asc, market_cap_change_24h_desc/asc, name_asc/desc; optional `query` substring filter on category name/id; limit 1-100 (default 25). The sector-rotation view: which narratives are gaining or bleeding today. Cached in-process for 5 minutes. Data provided by CoinGecko.$0.005 Base143 ms3 payers100% up
  88. 100agent402.tools/api/cpi-yoyUS CPI year-over-year inflation ($0.005/call via x402 or MPP)$0.005 Base149 ms3 payers100% up
  89. 100agent402.tools/api/edgar-13f-datasetsEDGAR Form 13F data sets (index) ($0.003/call via x402 or MPP)$0.003 Base156 ms3 payers100% up
  90. 100agent402.tools/api/rwa-issuersThe issuers behind tokenized real-world assets (Coinbase, Backpack Securities, Ondo, xStocks and the rest): id and name, for rwa-issuer. Cached in-process for 5 minutes. Data provided by CoinGecko.$0.003 Base145 ms3 payers100% up
  91. 100agent402.tools/api/chain/pendingThe chain's pending block: how many transactions are queued for the next block, the base fee they will pay, and the gas already used against the limit. This is the node's own view of what is about to be mined, so it answers "is the chain congested right now" without an indexer. Transaction hashes are included when the node returns them. EVM chains: ethereum, base, polygon, arbitrum, optimism.$0.001 Base119 ms3 payers100% up
  92. 100agent402.tools/api/add-timeAdd (or subtract) a duration to a date. duration like "2d", "-3h", "1w 2d", "90m". Returns the resulting UTC ISO timestamp.$0.001 Base155 ms3 payers100% up
  93. 100agent402.tools/api/ulidGenerate ULIDs (sortable, timestamp-prefixed identifiers).$0.001 Base119 ms3 payers100% up
  94. 100agent402.tools/api/fed-fundsEffective federal funds rate ($0.005/call via x402 or MPP)$0.005 Base142 ms3 payers100% up
  95. 100agent402.tools/api/rwa-listEvery real-world asset with a tokenized onchain version in the coin index: stocks, ETFs and commodities, with id, symbol, name and type. Filter by type or a name/symbol substring; ids feed rwa-markets and rwa-asset. Counts by type ride along. Cached in-process for 10 minutes. Data provided by CoinGecko.$0.003 Base116 ms3 payers100% up
  96. 100agent402.tools/api/treasury-debtMost recent total US public debt outstanding (the headline national-debt number, daily) from the Treasury "Debt to the Penny" feed. Public domain, no key. No params.$0.002 Base127 ms3 payers100% up
  97. 100agent402.tools/api/b20-activation-checkIs B20 live on Base mainnet? Queries the Activation Registry precompile for base.b20_asset and base.b20_stablecoin (or a custom feature id). Honest pre-launch too: reports not-activated until the registry flips.$0.002 Base128 ms3 payers100% up
  98. 100agent402.tools/api/device-recallsSearch FDA medical-device recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distribution, and dates. Live FDA data, no key.$0.004 Base160 ms3 payers100% up
  99. 100agent402.tools/api/vehicle-recallsNHTSA safety recalls for a vehicle by make/model/year: campaign number, affected component, summary, consequence, and remedy. Live gov data, no key.$0.004 Base151 ms3 payers100% up
  100. 100agent402.tools/api/fec-candidatesSearch US federal election candidates via the FEC: name, party, office (House/Senate/President), state, incumbent/challenger status, and FEC candidate ID. Live gov data.$0.004 Base133 ms3 payers100% up