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/tipo-direcciones-pagoNo price listedClassify up to 50 EVM addresses at once: regular wallet (EOA), EIP-7702 delegated wallet or contract, with code size. Filter airdrop lists, spot contracts or bots. 12 chains.
  • POST/pdf-unir-pagoNo price listedMerge 2 to 10 PDFs (URLs) into one, in the given order, returned in base64.
  • POST/uniswap-posicion-pagoNo price listedUniswap v3 liquidity position by NFT id: pair, fee tier, price range, current price and in-range flag, liquidity, uncollected fees recorded and owner. Base, Ethereum, Arbitrum, Optimism and Polygon.
  • POST/v1/solana-wallet-valueNo price listedTotal USD value of a Solana wallet: SOL and every token priced with Jupiter, weight of each position, and count of tokens without price (likely spam or airdrops).
  • POST/v1/rss-readNo price listedRead any RSS 2.0, RSS 1.0 or Atom feed (or find the feed a web page declares) and get clean JSON: title, link, date (ISO), author, plain-text summary and categories of each entry.
  • POST/gas-red-pagoNo price listedLive gas price on Base or Ethereum (gwei, base fee, priority fee) plus estimated USD cost of an ETH transfer, an ERC-20 transfer and a DEX swap, including Base L1 data fee. Priced with the Chainlink ETH/USD oracle.
  • POST/v1/llm-pricesNo price listedPrice per million input and output tokens of 300+ language models (OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek...) via OpenRouter, with context window and the estimated cost of one call with your token counts; filter by name or provider, sort by price or context.
  • POST/turismo-ue-pagoNo price listedMonthly 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.
  • POST/curva-tesoro-eeuu-pagoNo 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/comparar-listas-pagoNo price listedCompare 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.
  • POST/v1/email-providerNo price listedDetect 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.
  • POST/dex-volumen-pagoNo price listedDecentralized exchanges ranked by traded volume (24h and 7d), each with its market share and 7d change, plus total volume. Optional per chain (great to see who leads on Base, Solana...). Live from DefiLlama.
  • POST/v1/xrpl-complianceNo price listedIdentity and compliance of an XRPL account: DID, credentials received or issued (KYC, accreditation) and permissioned domains.
  • POST/bce-historico-pagoNo price listedHistorical ECB euro reference exchange rate for any date since 1999 and conversion between any two published currencies.
  • POST/evm-internas-pagoNo price listedInternal transactions of an EVM address (native coin moved by contracts, invisible in the normal history): date, type, from, to, value, success and parent transaction.
  • POST/calcular-iva-pagoNo price listedStandard 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.
  • POST/v1/web-to-markdownNo price listedRead any public web page or PDF and get its main content as clean, LLM-ready markdown (headings, lists, links, tables, code) plus metadata: title, description, author, date, language, canonical URL. Menus, cookie banners and footers removed. Optional list of links. SSRF-safe fetching.
  • POST/v1/qr-generateNo price listedGenerate 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.
  • POST/palabras-clave-pagoNo price listedExtract 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.
  • POST/saldo-multired-pagoNo price listedOne address across five EVM chains (Base, Ethereum, Arbitrum, Optimism, Polygon): native coin and USDC balance per chain and total USD value.
  • POST/hedera-red-pagoNo price listedHedera network status: the official HBAR/USD exchange rate the network uses to compute fees (current and next), circulating and total supply, latest block and market price.
  • POST/v1/email-validateNo price listedEmail validation: syntax, domain MX records and disposable-domain flag. Sends no email; the address is not stored.
  • POST/v1/token-launch-priceNo price listedFirst recorded price of one or more tokens and its date (when it started trading), with current price and the multiple and % change since then. Symbols (BTC, ETH, SOL...) or chain:contract ids. DefiLlama data.
  • POST/v1/xrpl-order-bookNo price listedXRP Ledger DEX order book for a pair: best bid and ask, spread, depth on each side and the top orders.
  • POST/v1/tokenized-stocks-walletNo price listedWhich verified tokenized stocks and ETFs (xStocks, Ondo) a Solana wallet holds, with amount, token price and USD value; only official tokens from the verified registry count.

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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