api.vextorium.com
Onchain data API on Base, Optimism and Polygon, paid per request with x402.
- Endpoints3,010
- Price per requestfrom $0.001
- Outside payers · 7dn/a
- Answer 4020 of 19
Overview
- Seller wallet
- 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf
- Chains
- BaseOptimismPolygon
- Hosts
- api.vextorium.com
- CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
- Onchain data1,038Market data603Other409Developer tools407Web data117Security112Identity111Media78Commerce66AI models36Search27Agents6
- First seen
- 2026-10-05 · last seen 2026-10-07
Endpoints
EndpointsDescriptions are the seller's own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.https://api.vextorium.com/v1/species-info
Species information by scientific or common name (GBIF): accepted name, full taxonomy (kingdom to species), rank, status, common names, number of occurrence records and countries with most records.
OptimismOthern/a/ request
2026-10-07
https://api.vextorium.com/v1/species-info
Species information by scientific or common name (GBIF): accepted name, full taxonomy (kingdom to species), rank, status, common names, number of occurrence records and countries with most records.
PolygonOthern/a/ request
2026-10-07
https://api.vextorium.com/v1/ssl-certificate
TLS certificate of a domain: issuer, validity dates, days until expiry, names covered (SAN), whether it matches the domain and is trusted, TLS version and cipher. For uptime and security monitoring.
OptimismIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/ssl-certificate
TLS certificate of a domain: issuer, validity dates, days until expiry, names covered (SAN), whether it matches the domain and is trusted, TLS version and cipher. For uptime and security monitoring.
PolygonIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-depeg
USD stablecoins currently trading away from their peg beyond a threshold, with price, deviation, market cap and mechanism. Early risk alert for treasuries and protocols. DefiLlama prices.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-depeg
USD stablecoins currently trading away from their peg beyond a threshold, with price, deviation, market cap and mechanism. Early risk alert for treasuries and protocols. DefiLlama prices.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-detail
Detail 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.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-detail
Detail 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.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-market-cap
Total stablecoin market capitalization (crypto's dry powder) with series, 7/30/90/365-day change and split by peg currency (USD, EUR...). Live from DefiLlama.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-market-cap
Total stablecoin market capitalization (crypto's dry powder) with series, 7/30/90/365-day change and split by peg currency (USD, EUR...). Live from DefiLlama.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-mints-burns
Stablecoin mints and burns over the last hours read from the contracts: USDC and USDT on Ethereum and USDC on Base, with totals, counts, largest operations and net flow. A signal of money entering or leaving crypto.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-mints-burns
Stablecoin mints and burns over the last hours read from the contracts: USDC and USDT on Ethereum and USDC on Base, with totals, counts, largest operations and net flow. A signal of money entering or leaving crypto.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-peg
Peg health of a stablecoin (USDT, USDC, DAI, USDe...): current price, deviation from $1, whether it is on peg, circulating supply and pegging mechanism. Detects depegs early. Live from DefiLlama.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-peg
Peg health of a stablecoin (USDT, USDC, DAI, USDe...): current price, deviation from $1, whether it is on peg, circulating supply and pegging mechanism. Detects depegs early. Live from DefiLlama.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-yields
Best 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.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-yields
Best 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.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoins-by-chain
How stablecoin money is spread across blockchains: circulating stablecoin value per chain, each chain's share and the total. Shows where the dry powder (liquidity ready to buy) actually sits. Live from DefiLlama.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stablecoins-by-chain
How stablecoin money is spread across blockchains: circulating stablecoin value per chain, each chain's share and the total. Shows where the dry powder (liquidity ready to buy) actually sits. Live from DefiLlama.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/staking-calculator
Staking rewards: final amount, total rewards and average per day and month, with daily compounding or simple, after validator commission, in tokens and optionally in USD.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/staking-calculator
Staking rewards: final amount, total rewards and average per day and month, with daily compounding or simple, after validator commission, in tokens and optionally in USD.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/starknet-wallet
Starknet wallet: ETH, STRK, USDC and USDT balances read from their contracts, account nonce, deployment status and USD value.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/starknet-wallet
Starknet wallet: ETH, STRK, USDC and USDT balances read from their contracts, account nonce, deployment status and USD value.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stellar-account
Stellar account: XLM and every asset balance (USDC, EURC...) with issuer, signers and thresholds, subentries and USD value.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/stellar-account
Stellar account: XLM and every asset balance (USDC, EURC...) with issuer, signers and thresholds, subentries and USD value.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/subdomains
Subdomains 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.
PolygonIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/subdomains
Subdomains 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.
OptimismIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/sui-wallet
Sui wallet balances: SUI and every other token with amount, decimals and USD value where priced, plus the wallet total.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/sui-wallet
Sui wallet balances: SUI and every other token with amount, decimals and USD value where priced, plus the wallet total.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/sunrise-sunset
Sunrise, sunset, solar noon, day length and civil, nautical and astronomical twilight for coordinates and a date, in local time (zone detected from coordinates). Local astronomical calculation; handles polar night and m…
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/sunrise-sunset
Sunrise, sunset, solar noon, day length and civil, nautical and astronomical twilight for coordinates and a date, in local time (zone detected from coordinates). Local astronomical calculation; handles polar night and m…
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/tech-detect
Detect the technologies behind a website: CMS (WordPress, Shopify...), frameworks (Next.js, React...), server and CDN, analytics, payments, chat, cookie manager, captcha and fonts, from HTML and headers. For lead genera…
OptimismCommercen/a/ request
2026-10-06
https://api.vextorium.com/v1/tech-detect
Detect the technologies behind a website: CMS (WordPress, Shopify...), frameworks (Next.js, React...), server and CDN, analytics, payments, chat, cookie manager, captcha and fonts, from HTML and headers. For lead genera…
PolygonCommercen/a/ request
2026-10-06
https://api.vextorium.com/v1/technical-analysis
Technical analysis of any Hyperliquid perpetual (crypto, stocks, commodities): RSI, MACD, EMA 20/50/200, Bollinger bands, ATR, stochastic, annualized volatility, recent highs/lows, relative volume, trend and volatility …
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/technical-analysis
Technical analysis of any Hyperliquid perpetual (crypto, stocks, commodities): RSI, MACD, EMA 20/50/200, Bollinger bands, ATR, stochastic, annualized volatility, recent highs/lows, relative volume, trend and volatility …
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/text-chunk
Split 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.
PolygonAI modelsn/a/ request
2026-10-06
https://api.vextorium.com/v1/text-chunk
Split 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.
OptimismAI modelsn/a/ request
2026-10-06
https://api.vextorium.com/v1/text-diff
Compare 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.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/text-diff
Compare 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.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/text-extract-entities
Extract from any text, without AI: emails, URLs, phone numbers, IBANs, EVM/Bitcoin/Solana addresses, transaction hashes, IPs, dates, amounts, hashtags, mentions and Spanish tax IDs, deduplicated.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/text-extract-entities
Extract from any text, without AI: emails, URLs, phone numbers, IBANs, EVM/Bitcoin/Solana addresses, transaction hashes, IPs, dates, amounts, hashtags, mentions and Spanish tax IDs, deduplicated.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/text-extract-numbers
Extract and normalize every number in a text: amounts with currency (€, $, USDC, BTC...), percentages, multipliers (k, million, bn) and plain figures, understanding both 1.234,56 and 1,234.56, with totals per currency.
PolygonWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/text-extract-numbers
Extract and normalize every number in a text: amounts with currency (€, $, USDC, BTC...), percentages, multipliers (k, million, bn) and plain figures, understanding both 1.234,56 and 1,234.56, with totals per currency.
OptimismWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/text-similarity
Similarity between two texts without AI: TF-IDF cosine, vocabulary Jaccard and character-trigram Jaccard (catches edited copies), shared words and a verdict. For duplicates, plagiarism checks and deduplication.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/text-similarity
Similarity between two texts without AI: TF-IDF cosine, vocabulary Jaccard and character-trigram Jaccard (catches edited copies), shared words and a verdict. For duplicates, plagiarism checks and deduplication.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/text-stats
Text statistics without AI: characters, words, sentences, paragraphs, unique words, reading and speaking time, readability (Flesch / Flesch-Kincaid for English, Fernandez-Huerta for Spanish) and most frequent words.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/text-stats
Text statistics without AI: characters, words, sentences, paragraphs, unique words, reading and speaking time, readability (Flesch / Flesch-Kincaid for English, Fernandez-Huerta for Spanish) and most frequent words.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/text-transform
Transform text: URL slug, remove accents, ASCII, snake_case, camelCase, PascalCase, kebab-case, CONSTANT_CASE, Title, upper, lower, reverse, strip HTML, normalize whitespace and Unicode (NFC/NFKC). One or all at once.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/text-transform
Transform text: URL slug, remove accents, ASCII, snake_case, camelCase, PascalCase, kebab-case, CONSTANT_CASE, Title, upper, lower, reverse, strip HTML, normalize whitespace and Unicode (NFC/NFKC). One or all at once.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/tezos-account
Tezos account (tz1/tz2/tz3/KT1): XTZ balance, baker, staked amount, FA tokens, transaction count, first and last activity and USD value.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/tezos-account
Tezos account (tz1/tz2/tz3/KT1): XTZ balance, baker, staked amount, FA tokens, transaction count, first and last activity and USD value.
PolygonOnchain datan/a/ request
2026-10-06
Evidence
Answers HTTP 402
Answers HTTP 402Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.0 of 19
0 of 19 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-10-07
x402-style payments, last 7 days (Base)
x402-style paymentsMethod: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.unknown
unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan)
window ended 2026-10-07
By chain
| Chain | Seller wallet | Endpoints | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 1,014 | 0 of 7 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-07 | unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan) |
| Optimism | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 1,007 | 0 of 6 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-07 | unknown. not measured on this chain yet |
| Polygon | 0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf | 989 | 0 of 6 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-07 | unknown. not measured on this chain yet |
One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Pricing
The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.
Claim this merchant
Sign a message from the payout address 0xb9f06d…b71acf to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.
Data CC-BY-4.0, attribution: data by satohub.ai. Data: x402-list.com (CC BY 4.0). Data as of 2026-10-07. Appearing here is not an endorsement. Check an endpoint with the doctor.