api.vextorium.com
Base, Optimism, Polygon · payout 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf
Answers HTTP 402
0 of 5 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-10-05
Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.
x402-style payments, last 7 days (Base)
964 x402-style payments from 6 distinct payers, $3.76 USDC in the last 7 days (Base, exact read)
window ended 2026-10-05
- Payments
- 964
- Outside payers
- 6
- USDC
- 3.76
All USDC received at this payout address: $3.76 (includes payments that are not x402)
Method: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.
Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-05, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out
Delivery is not measured. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Chains · one payout address, each chain read on its own
| Chain | Payout address | Listings | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 1,013 | 0 of 5 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-05 | 964 x402-style payments from 6 distinct payers, $3.76 USDC in the last 7 days (Base, exact read) |
| Optimism | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 531 | unknown | unknown. not measured on this chain yet |
| Polygon | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 33 | unknown | unknown. not measured on this chain yet |
- Hosts
- api.vextorium.com
- Listings
- 1,577 registered in the x402 catalogue
- Price range
- $0.0010 to $0.020 per call, as registered
- Categories (auto)
- Onchain data (545), Market data (319), Developer tools (210), Other (209), Security (62), Identity (60), Web data (60), Media (43), Commerce (33), Inference (18), Search (15), Agents (3)
- First seen
- 2026-10-05 · last seen 2026-10-05
Claim this merchant
Sign a message from the payout address 0xb9f06d…b71acf to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.
Registrations · 1,578
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
https://api.vextorium.com/v1/tropical-cyclones Active tropical cyclones in the Atlantic and eastern/central Pacific from the US National Hurricane Center: name, type (hurricane, storm...), max wind, pressure, position, movement and links to the official advisory and… | Base | Other | $0.002 | 2026-10-03 |
https://api.vextorium.com/v1/us-mortgage-rates Average US mortgage rates from Freddie Mac's weekly PMMS survey: 30- and 15-year fixed, latest value, weekly and yearly change and recent series. | Base | Commerce | $0.002 | 2026-10-03 |
https://api.vextorium.com/v1/wallet-sanctions-check Check whether a crypto address (Bitcoin, Ethereum/EVM, Tron, Solana, Litecoin, Monero...) is on the US OFAC SDN sanctions list: sanctioned person or entity, program (country or regime) and currency. Compliance check bef… | Base | Security | $0.002 | 2026-10-03 |
https://api.vextorium.com/v1/wikipedia-summary Summary of a Wikipedia article in any language: title, short description, lead paragraph, image, coordinates, link and Wikidata id. If the title is not exact it returns the closest article, flagged as approximate, with … | Base | Web data | $0.002 | 2026-10-03 |
https://api.vextorium.com/v1/wikipedia-trending Most read Wikipedia articles in a language on a given day (yesterday by default): what people are looking up, with views and rank, technical pages removed. A signal of current events and trends. | Base | Web data | $0.002 | 2026-10-03 |
https://api.vextorium.com/wallet-sancionada-pago Check whether a crypto address (Bitcoin, Ethereum/EVM, Tron, Solana, Litecoin, Monero...) is on the US OFAC SDN sanctions list: sanctioned person or entity, program (country or regime) and currency. Compliance check bef… | Base | Security | $0.002 | 2026-10-03 |
https://api.vextorium.com/wikipedia-resumen-pago Summary of a Wikipedia article in any language: title, short description, lead paragraph, image, coordinates, link and Wikidata id. If the title is not exact it returns the closest article, flagged as approximate, with … | Base | Web data | $0.002 | 2026-10-03 |
https://api.vextorium.com/wikipedia-tendencias-pago Most read Wikipedia articles in a language on a given day (yesterday by default): what people are looking up, with views and rank, technical pages removed. A signal of current events and trends. | Base | Web data | $0.002 | 2026-10-03 |
https://api.vextorium.com/abi-codificar-pago Encode 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. | Base | Developer tools | $0.003 | 2026-10-02 |
https://api.vextorium.com/abi-decodificar-pago Decode EVM calldata (transaction input) with the function signature or, if omitted, by looking up the selector on 4byte; or decode return data with its output types (e.g. uint256,address). | Base | Onchain data | $0.003 | 2026-10-02 |
https://api.vextorium.com/aeropuerto-buscar-pago Find airports by IATA/ICAO code, name or city, or the nearest to coordinates: name, codes, city, country, coordinates, elevation and scheduled service. OurAirports open data. | Base | Commerce | $0.003 | 2026-10-02 |
https://api.vextorium.com/aeropuertos-eeuu-estado-pago Current 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...). | Base | Commerce | $0.003 | 2026-10-02 |
https://api.vextorium.com/aleatorio-pago Randomness for agents: flip coins, roll dice, draw numbers in a range, pick from a list or shuffle it. Cryptographically secure by default; with verificable=true it is derived from the latest finalized Ethereum block ha… | Base | Developer tools | $0.003 | 2026-10-02 |
https://api.vextorium.com/algorand-cuenta-pago Algorand account: ALGO balance and locked minimum, ASA assets (USDC...) with amounts, consensus participation, opted-in apps and USD value. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/alquileres-ue-pago Year-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. | Base | Other | $0.003 | 2026-10-02 |
https://api.vextorium.com/analizar-user-agent-pago Parse a User-Agent string: browser and version, OS and version, device brand and model, device type (mobile, tablet, desktop) and whether it is a bot, an AI crawler (GPTBot, ClaudeBot...) or an HTTP library. | Base | Developer tools | $0.003 | 2026-10-02 |
https://api.vextorium.com/anonimizar-texto-pago Redact 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 … | Base | Developer tools | $0.003 | 2026-10-02 |
https://api.vextorium.com/apr-apy-pago Convert 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. | Base | Media | $0.003 | 2026-10-02 |
https://api.vextorium.com/aptos-cartera-pago Aptos wallet: APT balance and other fungible assets (USDC, USDT...) with amount and USD value, number of sent transactions and whether the account exists. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/arxiv-buscar-pago Search scientific papers on arXiv (AI, physics, maths, economics...): title, authors, abstract, categories, dates and PDF link; by relevance or newest, with category filter (cs.AI, cs.CR, q-fin...). | Base | Other | $0.003 | 2026-10-03 |
https://api.vextorium.com/asn-info-pago Information about an autonomous system: holder, whether it announces routes, registry block, number of IPv4 and IPv6 prefixes announced, approximate IPv4 addresses and a sample of prefixes. RIPEstat data. | Base | Onchain data | $0.003 | 2026-10-02 |
https://api.vextorium.com/base-numerica-pago Convert integers of any size (signed) between bases 2 to 36: binary, octal, decimal, hex, base32, base36, with bit and byte length and two's complement. Accepts 0x/0b/0o prefixes. | Base | Developer tools | $0.003 | 2026-10-02 |
https://api.vextorium.com/basename-pago Resolve a Basename (name.base.eth on Base) to its address, or an address to its verified primary Basename (reverse record checked forward). | Base | Other | $0.003 | 2026-10-02 |
https://api.vextorium.com/bce-historico-pago Historical ECB euro reference exchange rate for any date since 1999 and conversion between any two published currencies. | Base | Market data | $0.003 | 2026-09-29 |
https://api.vextorium.com/bitcoin-red-pago Bitcoin network now: block height and latest blocks, recommended fees in sat/vB to confirm in 1, 3, 6, 24 or 144 blocks, mempool size, difficulty, estimated hashrate and next difficulty adjustment (date and expected cha… | Base | Onchain data | $0.003 | 2026-10-02 |
https://api.vextorium.com/bitcoin-transaccion-pago Status of a Bitcoin transaction by txid: confirmed or in mempool, confirmations, block, total fee and fee rate (sat/vB), size, RBF flag, inputs and outputs with amounts. | Base | Onchain data | $0.003 | 2026-10-02 |
https://api.vextorium.com/bloque-info-pago Latest block on an EVM chain: number, hash, time, age in seconds, transaction count, gas used % and base fee. | Base | Onchain data | $0.003 | 2026-09-29 |
https://api.vextorium.com/bloque-por-fecha-pago Block number closest to a date and time on EVM chains (ethereum, base, arbitrum, optimism, polygon, bsc, avax...), with the block's own timestamp. For historical state queries and event filters. | Base | Onchain data | $0.003 | 2026-10-02 |
https://api.vextorium.com/cabeceras-email-pago Analyze raw email headers: sender, recipient, subject, server hops (Received) with delays, SPF/DKIM/DMARC results, Return-Path and Reply-To mismatches and spoofing signals, with a verdict. Investigate phishing or delive… | Base | Identity | $0.003 | 2026-10-02 |
https://api.vextorium.com/calculadora-il-pago Impermanent loss calculator for Uniswap v2 (full range) and v3/v4 concentrated ranges: IL vs holding, out-of-range flag and final token mix. | Base | Developer tools | $0.003 | 2026-09-29 |
https://api.vextorium.com/calculadora-liquidacion-prestamo-pago Collateralized DeFi loan (Aave/Compound style): health factor, current LTV, collateral liquidation price, drop it can withstand, extra borrowing room and how much to repay or add to reach a 1.5 health factor. | Base | Onchain data | $0.003 | 2026-10-02 |
https://api.vextorium.com/calculadora-margen-pago Pricing calculator: from any two of cost, price, margin or markup it computes the rest, profit per unit and total, and the price with VAT. Avoids the classic margin vs markup confusion. | Base | Developer tools | $0.003 | 2026-10-02 |
https://api.vextorium.com/calculadora-pnl-pago Trade 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. | Base | Market data | $0.003 | 2026-10-02 |
https://api.vextorium.com/calculadora-staking-pago Staking rewards: final amount, total rewards and average per day and month, with daily compounding or simple, after validator commission, in tokens and optionally in USD. | Base | Onchain data | $0.003 | 2026-10-02 |
https://api.vextorium.com/calcular-fechas-pago Date 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 s… | Base | Other | $0.003 | 2026-10-02 |
https://api.vextorium.com/calcular-iva-pago Standard and reduced VAT rates of any EU member state, and an invoice breakdown (net, VAT, gross) from a net or VAT-inclusive amount, flagging rates that are not in force there. | Base | Commerce | $0.003 | 2026-10-02 |
https://api.vextorium.com/calendario-economico-pago Upcoming 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 on… | Base | Market data | $0.003 | 2026-10-02 |
https://api.vextorium.com/cambio-precio-tokens-pago Price change in % of up to 20 tokens over 1h, 24h, 7d, 30d, 90d or 1y, sorted from best to worst, with current price. Symbols or chain:contract ids. DefiLlama data. | Base | Market data | $0.003 | 2026-10-02 |
https://api.vextorium.com/cardano-cartera-pago Cardano wallet by address (addr1...) or stake account (stake1...): ADA balance, delegated pool and DRep, available rewards, native tokens and USD value. | Base | Onchain data | $0.003 | 2026-10-03 |
https://api.vextorium.com/catastro-coordenadas-pago Cadastral parcel reference and address at given coordinates in Spain, to then query its data with catastro-inmueble. Official Catastro data. | Base | Commerce | $0.003 | 2026-10-02 |
https://api.vextorium.com/certificado-ssl-pago TLS 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. | Base | Identity | $0.003 | 2026-10-02 |
https://api.vextorium.com/color-contraste-pago Convert a color between HEX, RGB, HSL, HSV and CMYK and, given a background, compute the WCAG 2.x contrast ratio with AA/AAA pass flags; without background, suggests black or white text. | Base | Developer tools | $0.003 | 2026-10-02 |
https://api.vextorium.com/comparar-json-pago Deep 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. | Base | Developer tools | $0.003 | 2026-10-02 |
https://api.vextorium.com/comparar-listas-pago Compare 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. | Base | Onchain data | $0.003 | 2026-10-02 |
https://api.vextorium.com/comparar-versiones-pago Sort Semantic Versioning 2.0 versions (pre-releases included), give highest and lowest, the bump type between two, and which satisfy an npm-style range (^1.2.0, ~1.2, >=1.0 <2.0, 1.x || 2.x) plus the best match. | Base | Search | $0.003 | 2026-10-02 |
https://api.vextorium.com/comunicados-oficiales-pago Latest press releases from central banks and financial regulators (Federal Reserve, ECB, Bank of England, SEC, CFTC, ESMA) in one feed by date, with title, link and summary; filter by source or keyword (rate, crypto, st… | Base | Market data | $0.003 | 2026-10-02 |
https://api.vextorium.com/confianza-consumidor-ue-pago Consumer confidence indicator (balance, seasonally adjusted) for any European country, the EU or the euro area; without a country, a ranking. Below 0 = more pessimists than optimists. European Commission surveys via Eur… | Base | Onchain data | $0.003 | 2026-10-02 |
https://api.vextorium.com/contar-tokens-pago Count 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. | Base | Inference | $0.003 | 2026-10-02 |
https://api.vextorium.com/convertir-formato-pago Convert data between JSON, CSV (auto-detects ; , tab |), YAML, XML and JSON Lines. E.g. a spreadsheet CSV to JSON for an agent, or JSON to CSV for Excel. | Base | Developer tools | $0.003 | 2026-10-02 |
https://api.vextorium.com/convertir-unidades-pago Convert units of length, mass, volume, area, speed, temperature, data (KB vs KiB), energy, pressure, time and power, metric and imperial, with exact factors. | Base | Developer tools | $0.003 | 2026-10-02 |
Descriptions are the seller’s own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
Data CC-BY-4.0, attribution: data by satohub.ai. Collector run 2026-10-05. Appearing here is not an endorsement. Check an endpoint with the doctor.