api.vextorium.com
Onchain data API on Base, Optimism and Polygon, paid per request with x402.
- Endpoints3,010
- Price per requestfrom $0.001
- Outside payers · 7dn/a
- Answer 4020 of 19
Overview
- Seller wallet
- 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf
- Chains
- BaseOptimismPolygon
- Hosts
- api.vextorium.com
- CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
- Onchain data1,038Market data603Other409Developer tools407Web data117Security112Identity111Media78Commerce66AI models36Search27Agents6
- First seen
- 2026-10-05 · last seen 2026-10-07
Endpoints
EndpointsDescriptions 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.https://api.vextorium.com/v1/ecb-interest-rates
European Central Bank key rates (deposit facility, main refinancing, marginal lending) with the date they took effect, the history of deposit-rate changes in basis points, and the latest €STR overnight rate. Official EC…
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/ecb-rates-history
Historical ECB euro reference exchange rate for any date since 1999 and conversion between any two published currencies.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/ecb-rates-history
Historical ECB euro reference exchange rate for any date since 1999 and conversion between any two published currencies.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/economic-calendar
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…
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/economic-calendar
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…
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/eip712-review
Explain an EIP-712 typed-data signature before signing it: x402/EIP-3009 payment authorizations, EIP-2612 permits, Permit2 and Seaport orders. Flags unlimited allowances, long validity and non-official tokens, and retur…
OptimismOnchain datan/a/ request
2026-10-03
https://api.vextorium.com/v1/email-headers
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…
OptimismIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/email-headers
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…
PolygonIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/email-provider
Detect which email service a domain uses (Google Workspace, Microsoft 365, Zoho, Proton, OVH, IONOS...) from its MX and SPF records, plus corporate spam filters and other senders. For B2B sales and audits.
PolygonIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/email-provider
Detect which email service a domain uses (Google Workspace, Microsoft 365, Zoho, Proton, OVH, IONOS...) from its MX and SPF records, plus corporate spam filters and other senders. For B2B sales and audits.
OptimismIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/email-security
Email security of a domain: MX, SPF (final policy, multiple-record and lookup-limit problems), DMARC (policy, subdomains, reporting), MTA-STS, TLS-RPT and BIMI, with a score and recommendations. Detects spoofable domain…
OptimismIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/email-security
Email security of a domain: MX, SPF (final policy, multiple-record and lookup-limit problems), DMARC (policy, subdomains, reporting), MTA-STS, TLS-RPT and BIMI, with a score and recommendations. Detects spoofable domain…
PolygonIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/email-validate
Email validation: syntax, domain MX records and disposable-domain flag. Sends no email; the address is not stored.
PolygonIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/email-validate
Email validation: syntax, domain MX records and disposable-domain flag. Sends no email; the address is not stored.
OptimismIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/ens-expiry
Expiry of a .eth (ENS) or .base.eth (Basename) name: expiration date, days left, grace period end, registrant and whether it is free to register.
OptimismOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/ens-expiry
Expiry of a .eth (ENS) or .base.eth (Basename) name: expiration date, days left, grace period end, registrant and whether it is free to register.
PolygonOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/ens-profile
ENS profile: resolved address plus public text records (avatar, description, url, twitter, github, telegram, discord, email).
OptimismWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/ens-profile
ENS profile: resolved address plus public text records (avatar, description, url, twitter, github, telegram, discord, email).
PolygonWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/ens-resolve
ENS resolution on Ethereum: name to address (vitalik.eth -> 0x...) or address to primary name, with round-trip verification of reverse records.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/ens-resolve
ENS resolution on Ethereum: name to address (vitalik.eth -> 0x...) or address to primary name, with round-trip verification of reverse records.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/ens-resolve-batch
Resolve up to 20 ENS names to addresses, or addresses to their primary ENS name, in one call.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/ens-resolve-batch
Resolve up to 20 ENS names to addresses, or addresses to their primary ENS name, in one call.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/erc1155-balance
How many copies of an ERC-1155 token id a wallet holds (balanceOf), with the token URI. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/erc1155-balance
How many copies of an ERC-1155 token id a wallet holds (balanceOf), with the token URI. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/erc20-token-info
ERC-20 token profile read directly from the contract on Base or Ethereum: name, symbol, decimals, total supply, bytecode size and whether it is an upgradeable EIP-1967 proxy (with implementation address).
PolygonOnchain datan/a/ request
2026-10-05
https://api.vextorium.com/v1/erc20-token-info
ERC-20 token profile read directly from the contract on Base or Ethereum: name, symbol, decimals, total supply, bytecode size and whether it is an upgradeable EIP-1967 proxy (with implementation address).
OptimismOnchain datan/a/ request
2026-10-05
https://api.vextorium.com/v1/erc20-transfers
Latest Transfer events of an ERC-20 token, optionally only those in or out of a wallet, over the last N blocks, with decimal-adjusted amounts. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, …
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/erc20-transfers
Latest Transfer events of an ERC-20 token, optionally only those in or out of a wallet, over the last N blocks, with decimal-adjusted amounts. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, …
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/erc4626-vault
Read any ERC-4626 tokenized vault (Morpho, Yearn v3, Euler, Fluid, sDAI...) on-chain: underlying asset, total assets, shares outstanding, price per share and approximate TVL in USD.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/erc4626-vault
Read any ERC-4626 tokenized vault (Morpho, Yearn v3, Euler, Fluid, sDAI...) on-chain: underlying asset, total assets, shares outstanding, price per share and approximate TVL in USD.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/eth-burn
ETH burned by the EIP-1559 base fee over the last N blocks versus estimated validator issuance: burned total, issuance, net supply change (deflationary or not) and its daily and yearly extrapolation.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/eth-burn
ETH burned by the EIP-1559 base fee over the last N blocks versus estimated validator issuance: burned total, issuance, net supply change (deflationary or not) and its daily and yearly extrapolation.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/ethereum-blobs
Ethereum blob usage (EIP-4844, the data rollups post): current blob base fee in gwei and USD cost of one blob, blobs per block over the last N blocks and how often blocks were full.
OptimismOnchain datan/a/ request
2026-10-07
https://api.vextorium.com/v1/ethereum-blobs
Ethereum blob usage (EIP-4844, the data rollups post): current blob base fee in gwei and USD cost of one blob, blobs per block over the last N blocks and how often blocks were full.
PolygonOnchain datan/a/ request
2026-10-07
https://api.vextorium.com/v1/eu-consumer-confidence
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…
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-consumer-confidence
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…
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-deposit-rates
Average interest rate banks pay on new household time deposits (up to 1 year) and on overnight deposits in a euro area country; without a country, a ranking. Official ECB MFI interest rate statistics.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-deposit-rates
Average interest rate banks pay on new household time deposits (up to 1 year) and on overnight deposits in a euro area country; without a country, a ranking. Official ECB MFI interest rate statistics.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-electricity-prices
Average household electricity price (2,500-5,000 kWh/year band) in EUR/kWh by European country, with or without taxes: ranking or half-yearly evolution of one country. Official Eurostat data.
OptimismOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-electricity-prices
Average household electricity price (2,500-5,000 kWh/year band) in EUR/kWh by European country, with or without taxes: ranking or half-yearly evolution of one country. Official Eurostat data.
PolygonOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-fuel-prices
Average price with taxes of petrol 95, diesel, heating oil and LPG in each EU country (European Commission Weekly Oil Bulletin), in EUR per litre, sorted cheapest first.
PolygonOthern/a/ request
2026-10-07
https://api.vextorium.com/v1/eu-fuel-prices
Average price with taxes of petrol 95, diesel, heating oil and LPG in each EU country (European Commission Weekly Oil Bulletin), in EUR per litre, sorted cheapest first.
OptimismOthern/a/ request
2026-10-07
https://api.vextorium.com/v1/eu-gas-prices
Average household natural gas price (20-200 GJ/year band) in EUR/kWh by European country, with or without taxes: ranking or half-yearly evolution of one country. Official Eurostat data.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-gas-prices
Average household natural gas price (20-200 GJ/year band) in EUR/kWh by European country, with or without taxes: ranking or half-yearly evolution of one country. Official Eurostat data.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-gdp
Real quarterly GDP growth (seasonally adjusted) of any European country, the EU or the euro area: quarter-on-quarter and year-on-year; without a country, a ranking for the latest quarter. Official Eurostat data.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-gdp
Real quarterly GDP growth (seasonally adjusted) of any European country, the EU or the euro area: quarter-on-quarter and year-on-year; without a country, a ranking for the latest quarter. Official Eurostat data.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-government-debt
General government gross debt (Maastricht) as % of GDP for any European country, quarterly; without a country, a ranking with the latest figure of each. Official Eurostat data.
OptimismOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-government-debt
General government gross debt (Maastricht) as % of GDP for any European country, quarterly; without a country, a ranking with the latest figure of each. Official Eurostat data.
PolygonOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-government-deficit
Annual government deficit (-) or surplus (+) as % of GDP for any European country; without a country, a ranking. Official Eurostat data.
PolygonOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/eu-government-deficit
Annual government deficit (-) or surplus (+) as % of GDP for any European country; without a country, a ranking. Official Eurostat data.
OptimismOthern/a/ request
2026-10-06
Evidence
Answers HTTP 402
Answers HTTP 402Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.0 of 19
0 of 19 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-10-07
x402-style payments, last 7 days (Base)
x402-style paymentsMethod: 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.unknown
unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan)
window ended 2026-10-07
By chain
| Chain | Seller wallet | Endpoints | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 1,014 | 0 of 7 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-07 | unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan) |
| Optimism | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 1,007 | 0 of 6 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-07 | unknown. not measured on this chain yet |
| Polygon | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 989 | 0 of 6 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-07 | unknown. not measured on this chain yet |
One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Pricing
The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.
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.
Data CC-BY-4.0, attribution: data by satohub.ai. Data: x402-list.com (CC BY 4.0). Data as of 2026-10-07. Appearing here is not an endorsement. Check an endpoint with the doctor.