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/wikipedia-resumen-pagoNo price listedSummary 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 alternatives.
  • POST/v1/ens-expiryNo price listedExpiry of a .eth (ENS) or .base.eth (Basename) name: expiration date, days left, grace period end, registrant and whether it is free to register.
  • POST/generar-ids-pagoNo price listedGenerate cryptographically secure unique IDs: UUID v4, time-sortable UUID v7, ULID, NanoID, hex, base58 or prefixed tokens (e.g. ord_...), up to 1000 per call.
  • POST/v1/fund-13f-holdingsNo price listedHoldings an institutional manager reported in its latest SEC 13F (Berkshire, Bridgewater, Renaissance, ARK...): positions with value, shares and weight, total value and changes vs the previous quarter (new, increased, reduced, sold out). Search by manager name or CIK.
  • POST/redes-estado-pagoNo price listedLive status of Bitcoin, Solana and 12 EVM chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic, Unichain): latest block, seconds since last block, gas and whether each network is ok, slow or halted.
  • POST/v1/dns-lookupNo price listedDNS records of a domain with TTL: A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV, HTTPS. Choose the types or get the common ones at once.
  • POST/diferencias-texto-pagoNo price listedCompare two texts by lines or words: similarity %, added and removed items, list of changes with positions, and a unified diff. For contract versions, prompts, configs or scraped pages.
  • POST/bitcoin-mineria-pagoNo price listedBitcoin mining over the last N blocks (max 144, ~1 day): blocks per pool (Foundry, AntPool, ViaBTC, F2Pool...) with share and estimated hashrate, average block reward (subsidy + fees), fees as % of reward and average block interval.
  • POST/v1/text-diffNo price listedCompare two texts by lines or words: similarity %, added and removed items, list of changes with positions, and a unified diff. For contract versions, prompts, configs or scraped pages.
  • POST/v1/tron-token-infoNo price listedProfile of a Tron TRC-20 token read from its contract: name, symbol, decimals and total supply.
  • POST/v1/solana-tx-statusNo price listedSolana transaction status by signature: confirmed / failed / processing, slot, time, fee in SOL, signers, programs invoked and token balance changes.
  • POST/subdominios-pagoNo price listedSubdomains of a domain found in public Certificate Transparency logs (every TLS certificate issued): names, wildcard count and certificate dates. For asset inventory, audits and OSINT.
  • POST/v1/detect-languageNo price listedDetect the language of a text without AI (55 languages, statistical langdetect model) with probability and alternatives. Fast and cheap for routing messages or choosing a translation.
  • POST/v1/mastodon-followersNo price listedFollowers of a Mastodon account (user@instance) with name, follower count, bot flag and profile link.
  • POST/v1/pool-fee-aprNo price listedEstimated yield of providing liquidity in a token's pools (or one pool) on any DEX Screener chain: liquidity, 24h volume, pool fee (read on-chain when possible), fees generated, estimated APR, turnover and age, sorted by APR.
  • POST/v1/beefy-positionsNo price listedAll Beefy Finance vault positions of a wallet on Base, Ethereum, Arbitrum, Optimism or Polygon, read on-chain (shares and price per share) and valued in USD, including retired vaults where funds are often forgotten.
  • POST/deficit-mensual-eeuu-pagoNo price listedMonthly US federal receipts, outlays and deficit (or surplus), plus the trailing 12-month deficit, from the Monthly Treasury Statement. US Treasury, public domain.
  • POST/ens-caducidad-pagoNo price listedExpiry of a .eth (ENS) or .base.eth (Basename) name: expiration date, days left, grace period end, registrant and whether it is free to register.
  • POST/v1/evm-estimate-gasNo price listedEstimate the gas a transaction will use (eth_estimateGas) and its cost at the current gas price, or the revert reason if it would fail. Nothing is sent. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.
  • POST/v1/eu-vat-validateNo price listedEU VAT number format validation for all member states (plus Spanish check digit). Does not query VIES.
  • POST/generar-qr-pagoNo 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/v1/chain-compareNo price listedCompare two blockchains by DeFi TVL: value locked, share of the whole market and gas token, plus which one is bigger. Live from DefiLlama.
  • POST/v1/solana-token-priceNo 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/retiradas-vehiculos-pagoNo price listedSafety recall campaigns for a vehicle by make, model and year in the US: affected component, summary, consequence, remedy, date, over-the-air fix and do-not-drive flags. Official NHTSA data.
  • POST/blobs-ethereum-pagoNo price listedEthereum 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.

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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