Discover / api.vextorium.com

Historical ECB rates | Vextorium

■ Challenge detected

Historical ECB euro reference exchange rate for any date since 1999 and conversion between any two published currencies.

Listed price
$0.003
Challenge detected
3 of the last 9 checks
Median response
395 ms
Last checked
17 Oct, 07:50 UTC
In our index since
27 Sept 2026

Endpoint

curl -i https://api.vextorium.com/v1/ecb-rates-history
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
1,069 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://api.vextorium.com

  • POST/evm-nonce-pagoNo price listedConfirmed and pending nonce of a wallet, next nonce to use and transactions waiting in the mempool. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.
  • POST/dominio-pago$0.02Domain intelligence: WHOIS (registrar, creation and expiry dates), DNS records and SSL certificate details.
  • POST/v1/polymarket-walletNo price listedOpen positions of a wallet on Polymarket: market, outcome, shares, average and current price, value, PnL (USD and %), redeemable flag and close date, with portfolio totals.
  • POST/color-contraste-pagoNo price listedConvert 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.
  • POST/v1/eu-government-debtNo price listedGeneral 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.
  • POST/v1/text-chunkNo price listedSplit 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.
  • POST/aeropuertos-eeuu-estado-pagoNo price listedCurrent 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...).
  • POST/v1/evm-balances-batchNo price listedNative balance (and optionally one ERC-20 token) of up to 50 EVM wallets in one call on any of 12 chains, with totals. For treasuries, airdrops or watching many accounts.
  • POST/v1/oecd-leading-indicatorNo price listedOECD Composite Leading Indicator, which anticipates turning points of the business cycle 6-9 months ahead: value (100 = trend), monthly change and phase (expansion, downturn, slowdown, recovery) for major economies, G7 and OECD, or one country's series.
  • POST/v1/bluesky-trendingNo price listedTopics trending right now on Bluesky, with a link to each topic feed.
  • POST/v1/uniswap-poolNo price listedUniswap v3 pool state on Base for a token pair: pool address per fee tier, spot price, tick, active liquidity and token reserves.
  • POST/v1/defi-chainsNo price listedAll blockchains ranked by DeFi total value locked: TVL in USD, share of the total and native token for each chain (Ethereum, Solana, Base, Arbitrum...). Live from DefiLlama.
  • POST/v1/stablecoin-detailNo price listedDetail of one stablecoin: pegging mechanism (fiat-backed, crypto-backed, algorithmic), price, on-peg status, total circulating supply and its breakdown by chain. Live from DefiLlama.
  • POST/inflacion-ue-pagoNo price listedHarmonised inflation (HICP annual rate) of any EU/EEA country, the EU or the euro area for the last months; with pais=todos, a ranking of all countries for the latest month. Official Eurostat data.
  • POST/swap-solana-pagoNo price listedBest route and price to swap one Solana token for another: how much you receive, the price impact and which DEXs the route goes through. Accepts symbols (SOL, USDC...) or mint addresses. Live from Jupiter, Solana's leading aggregator.
  • POST/v1/xrpl-rlusdNo price listedRipple USD (RLUSD) on the XRP Ledger: total supply, trust lines scanned and the largest holders.
  • POST/v1/spain-geocodeNo price listedTurn a Spanish address, street, town or place into coordinates with the official CartoCiudad geocoder (IGN): normalized address, municipality and INE code, province, region, postcode and lat/lon.
  • POST/evm-eth-call-pagoNo price listedRun a read-only eth_call with pre-encoded hex calldata and get the raw result split into 32-byte words, or the revert reason. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.
  • POST/aave-historico-pagoNo price listedDaily history of the supply APY (base and rewards) and TVL of an Aave v3 market (asset and chain), with average, max and min over the period. DefiLlama data.
  • POST/precio-solana-pagoNo price listedUSD price of one or more Solana tokens by mint address (up to 20 at once): price, 24h change and on-chain liquidity, derived from real liquidity via Jupiter, Solana's leading aggregator. Live open data.
  • POST/v1/ip-subnetNo price listedIPv4/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.
  • POST/v1/dex-swap-quoteNo price listedOn-chain swap quote on Base from Uniswap v3 QuoterV2 across all fee tiers (0.01%, 0.05%, 0.3%, 1%): output amount, unit price, best pool and gas estimate. Accepts symbols (WETH/ETH, USDC, USDT, DAI, cbBTC) or token addresses. Read-only, no swap executed.
  • POST/defi-protocolo-pagoNo price listedOverview of any DeFi protocol by name (Aave, Uniswap, Lido, Pendle...): total value locked, 1d/7d/1m TVL change, category, chains it runs on, native token and description. Live from DefiLlama.
  • POST/token-veredicto-pagoNo price listedOne-call risk verdict for an ERC-20 token on Base, Ethereum, Arbitrum, Optimism or Polygon: 0-100 score and level with every signal explained: admin powers (mint, pause, blacklist, fees), upgradeable proxy, renounced ownership, owner share, verified code, DEX liquidity, volume, pair age and buy/sell pattern (honeypot hint). No AI, transparent rules. Not investment advice.
  • POST/token-vigilar-posicion-pagoNo price listedRe-check a token you already hold against your entry: liquidity below 25% of entry, risk score drop, dangerous powers active (mint, freeze, pause...), honeypot pattern or inflated volume. Verdict CLEAN (LIMPIO), DEGRADED (DEGRADADO) or RISK (RIESGO) with the reason for each alarm. Pass your entry liquidity and score.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 25 of 1,069 listed endpoints. Next endpoints First endpoints

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/api.vextorium.com

Recent checks

4 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026
All 9 checks
When (UTC)ResultHTTPResponse
17 Oct, 07:50 UTCChallenge detected402372ms
15 Oct, 23:42 UTCChallenge detected402395ms
14 Oct, 19:26 UTCChallenge detected402417ms
12 Oct, 22:31 UTCNo challenge detected200423ms
11 Oct, 00:15 UTCNo challenge detected200394ms
9 Oct, 15:32 UTCNo challenge detected200382ms
8 Oct, 09:33 UTCNo challenge detected200429ms
7 Oct, 03:32 UTCNo challenge detected200376ms
4 Oct, 17:05 UTCNo challenge detected200394ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 07:50 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Historical ECB rates | Vextorium?

Its listed price is $0.003.

What payment terms does Historical ECB rates | Vextorium advertise?

The listing advertises x402, Base, EVM chain 5042, Optimism, Polygon, Solana, Xrpl, USDC and XRP. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Historical ECB rates | Vextorium listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 27 Sept 2026.

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