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.

x402
Base
EVM chain 5042
Optimism
Polygon
Solana
Xrpl
USDC
XRP
Blockchain

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/v1/pdf-extract-pagesNo price listedCreate a new PDF with only the pages you choose (e.g. 1-3,7) from a PDF at a URL, returned in base64.
POST/v1/eu-mortgage-ratesNo price listedAverage interest rate on new mortgages (cost of borrowing for house purchase) and new consumer credit in a euro area country, with monthly evolution; without a country, a ranking. Official ECB MFI interest rate statistics.
POST/rwa-ranking-pagoNo price listedRanking of tokenized real-world asset protocols (treasury bills, private credit, gold, real estate...) by on-chain value, with 7-day change, chains and token, plus total RWA value. DefiLlama data.
POST/deuda-publica-ue-pagoNo 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/us-airport-delaysNo 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/adjudicaciones-pagoNo price listedSpanish public contracts awarded to a company, or by a contracting authority, from official PLACSP open data: winners, awarded amounts (VAT excluded), dates and official links. Competitive intelligence for B2B agents.
POST/estable-detalle-pagoNo 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/v1/ton-transactionsNo price listedLatest transactions of a TON address: time, success, fee, TON received and sent, counterparties and message comment (memo). Confirm TON payments from Telegram wallets.
POST/v1/eu-tendersNo price listedPublic tenders and contract awards from all EU countries published in TED (Official Journal of the EU) by keyword and country: title, buyer, notice type, date, tender deadline, estimated value, CPV codes and link. Option: only open tenders.
POST/geocodificar-es-pagoNo 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/preparacion-agentes-pagoNo price listedHow ready a website is for AI agents: llms.txt, AI-crawler rules in robots.txt, sitemap, x402 payment discovery, OpenAPI, MCP manifest, security.txt, with a 0-100 score and concrete recommendations.
POST/v1/blockchain-statusNo 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/date-calculatorNo price listedDate facts (weekday, ISO week, quarter, day of year, leap year), exact difference between two dates in years, months, days, weeks and Mon-Fri working days, and adding or subtracting days, months or years (end-of-month safe).
POST/v1/options-volumeNo price listedOn-chain crypto options market (Derive, Aevo, Premia...): notional volume over 24h, 7d and 30d in total and per protocol, with changes and market shares. DefiLlama data.
POST/v1/ics-to-jsonNo price listedTurn an iCal/ICS calendar URL (Google Calendar, Outlook, holidays, events...) into JSON: upcoming events with title, start and end, all-day flag, location, description and link over the next N days; text filter.
POST/v1/solana-stake-accountNo price listedSolana stake account: SOL staked, delegated validator vote account, status (active, activating, deactivating, inactive), activation and deactivation epochs, stake and withdraw authorities and lockup.
POST/v1/chain-tvl-historyNo price listedTVL history of a blockchain: current value, all-time high and its date, distance from ATH, 30d and 1y change, plus a sampled series. Shows where a chain sits in the cycle. Live from DefiLlama.
POST/v1/timeNo price listedTrusted UTC time from Vextorium's NTP-synced server clock, with millisecond Unix timestamps, ISO week and weekday. For timestamping and clock checks.
POST/v1/bluesky-search-profilesNo price listedSearch Bluesky profiles by name, handle or bio keywords; returns handle, name, bio, DID and profile link.
POST/pool-historico-pagoNo price listedHistory of one liquidity pool's APY and TVL (by its pool id, the 'id' field returned by the DeFi yields service): current, average, min and max APY over the period, current TVL, whether the yield is stable or a one-off spike, and a sampled series. Live from DefiLlama.
POST/v1/stablecoin-yieldsNo price listedBest DeFi yields for stablecoins (USDC, USDT, DAI, USDe...): total, base and reward APY, TVL, protocol and chain, with minimum TVL and an option to exclude temporary reward incentives. Live from DefiLlama.
POST/polymarket-eventos-pagoNo price listedPolymarket events with all their markets: elections, Fed decisions, sports, crypto... Each event with the probability of every option (candidate, rate range, team), volume and close date; top by volume or matching a search.
POST/borme-actos-pagoNo price listedCompany acts registered in Spain's Commercial Registry (BORME section A) for a province and day: new companies with business purpose, address and share capital, dissolutions, insolvencies, capital increases, moves... Filter by act type or name. Company data only. Official BOE open data.
POST/token-veredicto-solana-pagoNo price listedOne-call risk verdict for a Solana token: 0-100 score and level with every signal explained: active mint or freeze authority, top-holder concentration, Jupiter verification and organic score, holder count, liquidity, volume, pair age and buy/sell pattern. No AI. Not investment advice.
POST/divisas-serie-pagoNo price listedDaily ECB reference exchange rate of a currency against the euro for up to 5 years: latest, change, high, low, average and annualized volatility, with the series.

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)	Result	HTTP	Response
17 Oct, 07:50 UTC	Challenge detected	402	372ms
15 Oct, 23:42 UTC	Challenge detected	402	395ms
14 Oct, 19:26 UTC	Challenge detected	402	417ms
12 Oct, 22:31 UTC	No challenge detected	200	423ms
11 Oct, 00:15 UTC	No challenge detected	200	394ms
9 Oct, 15:32 UTC	No challenge detected	200	382ms
8 Oct, 09:33 UTC	No challenge detected	200	429ms
7 Oct, 03:32 UTC	No challenge detected	200	376ms
4 Oct, 17:05 UTC	No challenge detected	200	394ms

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.

Payment

Protocol: x402 · exact
Chains: Base, EVM chain 5042, Optimism, Polygon, Solana, Xrpl
Asset: USDC, XRP
Amount: 3000 atomic USDC
Paid to: HcjfmZ…3pz2
Facilitator: cdp

From its payment challenge on 17 Oct 2026.

Check the seller's current payment challenge and authentication requirements before paying. A listing doesn't mean a service works with Superstables. To try a budget or a single purchase, see the services you can try on testnet.

Listed in

Also live on x402 · Base

Academic Paper LookupScientific paper lookup by DOI, arXiv id or PMID: full abstract, Semantic Scholar TLDR,…
api.paywallwatch.comUse when an agent has an email address from a form, a scrape or a CRM and must decide…
barriere.halowerk.comAbbreviation expansion audit fetches current public evidence from the supplied target and…
Pyfile x402 APIRead any public web page as clean readable Markdown for RAG and LLM pipelines — main…

Browse the index

Something wrong on this page? Tell us.