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
4 of the last 10 checks
Median response
388 ms
Last checked
18 Oct, 09:23 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/v1/us-treasury-yield-curveNo price listedLatest 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).
  • POST/hipotecas-eeuu-pagoNo price listedAverage US mortgage rates from Freddie Mac's weekly PMMS survey: 30- and 15-year fixed, latest value, weekly and yearly change and recent series.
  • POST/pubmed-buscar-pagoNo price listedSearch biomedical literature on PubMed (NIH): title, authors, journal, date, DOI, PMID and abstract of each article, newest first, with optional year filter.
  • POST/tron-token-info-pagoNo price listedProfile of a Tron TRC-20 token read from its contract: name, symbol, decimals and total supply.
  • POST/solana-validadores-pagoNo price listedSolana validators: active stake and share, commission, last vote, epoch credits (performance) and delinquent status. Rank by stake, commission or credits, or look one up by vote or identity key. For choosing where to stake.
  • POST/v1/chain-statsNo price listedStatistics of an EVM chain: total and today's transactions, addresses, blocks, average block time, gas prices (slow, average, fast), network utilization, native token price and market cap.
  • POST/v1/cron-explainNo price listedValidate a 5-field cron expression (ranges, steps, names, @daily aliases), explain it in plain English and list its next run times in any time zone, DST-aware.
  • POST/perpetuos-pagoNo price listedHyperliquid perpetual futures: hourly funding rate and annualized, 24h and 7d average funding, who pays whom, mark and oracle price, premium, open interest, 24h volume and max leverage for one coin; or a ranking of all markets by highest, lowest or most extreme funding, volume or open interest, with a minimum open interest filter.
  • POST/horario-bolsas-pagoNo price listedWorld stock exchanges clock: status (open, closed, lunch break), local time, today's session and next open for NYSE, Toronto, London, Euronext, Xetra, Madrid, Zurich, Tokyo, Hong Kong, Shanghai, India and Sydney.
  • POST/v1/solana-rentNo price listedMinimum SOL for a Solana account of a given size to be rent-exempt (165 bytes = token account, 82 = mint, 0 = wallet), with common reference sizes.
  • POST/v1/defi-hacksNo price listedDatabase of crypto hacks and exploits: date, amount stolen, technique, classification, chains and whether it was a bridge or CEX. Filterable by chain and minimum amount. Essential to gauge the risk of a protocol or chain. Live from DefiLlama.
  • POST/hyperliquid-funding-historico-pagoNo price listedHourly funding history of a Hyperliquid perpetual over 1-30 days: average, max, min, % of positive hours, annualized rate and a daily series. For carry and basis strategies.
  • POST/cripto-convertir-pagoNo price listedConvert an amount between cryptocurrencies and currencies (0.5 BTC to ETH, 100 USDC to EUR, 1000 EUR to SOL) with live DefiLlama prices and ECB rates.
  • POST/sol-wallet-perfil-pagoNo price listedQuick profile of a Solana wallet: SOL balance, tokens held, first visible and last activity, 24h transaction rate and flags (new, inactive, bot-like, empty). Assess a counterparty or spot bots.
  • POST/v1/json-schema-generateNo price listedGenerate a JSON Schema (draft 2020-12) from an example JSON: types, properties, arrays, required fields and formats (date, date-time, email, uri). For API docs, tool definitions and output validation.
  • POST/v1/scholarly-searchNo price listedSearch scholarly literature across all fields in OpenAlex (250M+ works): title, authors, institutions, year, journal, citation count, DOI and open-access link; by relevance, citations or date.
  • POST/aave-posicion-pagoNo price listedAave v3 position health for a wallet on five chains: collateral, debt, borrowing power, LTV, liquidation threshold and health factor with a risk label.
  • POST/token-autenticidad-pagoNo price listedIs a token's volume real or inflated (wash trading)? 0-100 organic score and verdict (organic, doubtful, inflated) from volume-to-liquidity turnover, number and size of trades, buy/sell balance and volume spikes, each signal explained. Solana or EVM chains.
  • POST/analizar-wallet-pago$0.02Analiza una wallet: saldo, transacciones recientes, tokens con movimiento y puntuacion de riesgo (basada en marcas de scam de contrapartes y tokens). Soporta Ethereum, Base, Arbitrum, Optimism, Polygon, Bitcoin y Solana.
  • POST/imagen-convertir-pagoNo price listedConvert and resize an image (URL or base64) to WebP, JPEG or PNG keeping aspect ratio and stripping EXIF/GPS metadata; returns base64 and a data URI with the size saving.
  • POST/sui-cartera-pagoNo price listedSui wallet balances: SUI and every other token with amount, decimals and USD value where priced, plus the wallet total.
  • POST/zona-horaria-coordenadas-pagoNo price listedIANA time zone of any point on Earth from its coordinates, computed locally, with the current local time there, UTC offset and daylight saving flag.
  • POST/validar-codigo-barras-pagoNo price listedValidate EAN-8, EAN-13, UPC-A, GTIN-14, ISBN-10 and ISBN-13: check digit (and the expected one if wrong), code type, GS1 prefix and registering country, plus ISBN-10/13 conversion.
  • POST/accion-tokenizada-pagoNo price listedOfficial tokenized versions of a US stock or ETF on Solana (xStocks by Backed and Ondo Global Markets): verified mint addresses, on-chain supply and issuer authority check. Accepts NVDA, NVDAx or NVDAon.
  • POST/aave-tipos-pagoNo price listedAave v3 live lending and borrowing APY for the main assets (WETH, USDC, USDT, DAI, cbBTC/WBTC) on a chain.

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.18 Oct 2026
All 10 checks
When (UTC)ResultHTTPResponse
18 Oct, 09:23 UTCChallenge detected402380ms
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 18 Oct, 09:23 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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