Historical ECB rates | Vextorium

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/polymarket-events—No 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/x402-inspector-pago—No price listedCheck any x402 endpoint before paying, without paying: price in USD per network, asset (flags anything that is not official USDC), pay-to address and whether it is a contract, authorization timeout, Bazaar metadata, and risk alerts with a clear verdict.
• POST/v1/ens-profile—No price listedENS profile: resolved address plus public text records (avatar, description, url, twitter, github, telegram, discord, email).
• POST/v1/dao-governance—No price listedGovernance proposals of a DAO on Snapshot by its space (aavedao.eth, uniswapgovernance.eth, cow.eth...): title, state, close date, total votes and results per option. For agents that follow or vote on a protocol's decisions. Live from Snapshot.
• POST/calculadora-margen-pago—No price listedPricing calculator: from any two of cost, price, margin or markup it computes the rest, profit per unit and total, and the price with VAT. Avoids the classic margin vs markup confusion.
• POST/v1/hyperliquid-markets—No price listedPerpetual futures markets on Hyperliquid: mark price, annualized funding rate, open interest and 24h volume for each asset. Search by asset or rank by volume, open interest, funding or 24h move. Live open on-chain data.
• POST/v1/bluesky-post-reposts—No price listedWho reposted a Bluesky post (by bsky.app URL or at:// URI), with handle, name and profile link.
• POST/trocear-texto-pago—No 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/leer-rss-pago—No 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/defi-prestamos-pago—No price listedWhere to borrow a token cheapest across DeFi lending markets (Aave, Compound, Morpho, Spark, Euler...): borrow APY, borrow incentives, net cost, supply APY, max LTV, utilization and available liquidity, by chain. Live from DefiLlama.
• POST/hyperliquid-mercados-pago—No price listedPerpetual futures markets on Hyperliquid: mark price, annualized funding rate, open interest and 24h volume for each asset. Search by asset or rank by volume, open interest, funding or 24h move. Live open on-chain data.
• POST/v1/token-safety—No 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/v1/price-chart—No price listedDaily price series of a token for up to 365 days with change, high, low, maximum drawdown and annualized volatility. Accepts symbols (BTC, ETH, SOL...) or chain:contract ids. Aggregated by DefiLlama.
• POST/revocar-aprobacion-pago—No price listedBuild the transaction that revokes a contract's permission over an ERC-20 token (approve(spender, 0)): target and calldata ready to sign in your wallet. Nothing is sent.
• POST/v1/us-weather—No price listedOfficial US National Weather Service forecast for coordinates in the United States: next 7 days or hourly, temperature (F and C), wind, chance of rain, plus active weather alerts.
• POST/v1/token-supply—No price listedERC-20 token supply: total minted, burned (dead addresses), approximate circulating, and the contract owner's balance and share if it has one. A concentration and issuer-control signal.
• POST/v1/virtuals-agent—No price listedFull detail of one AI agent token on Virtuals Protocol by name or symbol (AIXBT, Toshi...): market cap, 1h/6h/24h change, volume, holders and 24h holder growth, top-10 concentration, liquidity, category, chain, contract, website and Twitter. Live from the Virtuals API.
• POST/v1/contract-abi—No price listedABI of a verified EVM contract (Sourcify): every function with signature, selector, inputs, outputs and read/write flag, plus events with topic0 and proxy implementations. Ready-to-use signatures for leer-contrato.
• POST/v1/business-days—No price listedBusiness days in 150+ countries and their regions: count between two dates, or the date after adding N business days, skipping weekends and official holidays, listing the holidays in the range.
• POST/v1/euro-yield-curve—No price listedEuro area AAA government bond yield curve (zero-coupon, 3 months to 30 years) estimated by the ECB, with change in basis points versus N days ago and the 10y-2y slope.
• POST/contar-tokens-pago—No price listedCount the tokens of a text with OpenAI tokenizers (o200k for GPT-4o/4.1/5, cl100k for GPT-4/3.5) plus estimates for Claude, Llama and Gemini, with characters per token. Budget LLM calls and split contexts.
• POST/v1/morpho-vaults—No price listedMorpho lending vaults run by curators: name, deposited asset, chain, net APY, deposits in USD, fee and curator; filter by asset (USDC, WETH...) and chain, sort by deposits or APY.
• POST/stellar-cuenta-pago—No price listedStellar account: XLM and every asset balance (USDC, EURC...) with issuer, signers and thresholds, subentries and USD value.
• POST/v1/semver-compare—No price listedSort Semantic Versioning 2.0 versions (pre-releases included), give highest and lowest, the bump type between two, and which satisfy an npm-style range (^1.2.0, ~1.2, >=1.0 <2.0, 1.x || 2.x) plus the best match.
• POST/regex-probar-pago—No price listedTest a regular expression against a text: every match with position, groups and named groups, plus the result of a substitution if you pass a replacement. Flags i, m, s, x. Time-limited, safe against catastrophic backtracking.

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