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/qr-barcode-read
Read the codes in an image URL: QR, Data Matrix, Aztec, PDF417, EAN-13, UPC, Code 128, Code 39... with format, content and position; flags URLs, crypto payment URIs (bitcoin:, ethereum:, solana:) and wifi credentials.
PolygonMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/qr-generate
Generate 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.
PolygonMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/qr-generate
Generate 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.
OptimismMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/random
Randomness for agents: flip coins, roll dice, draw numbers in a range, pick from a list or shuffle it. Cryptographically secure by default; with verifiable=true it is derived from the latest finalized Ethereum block has…
OptimismDeveloper toolsn/a/ request
2026-10-07
https://api.vextorium.com/v1/random
Randomness for agents: flip coins, roll dice, draw numbers in a range, pick from a list or shuffle it. Cryptographically secure by default; with verifiable=true it is derived from the latest finalized Ethereum block has…
PolygonDeveloper toolsn/a/ request
2026-10-07
https://api.vextorium.com/v1/real-effective-fx
Real effective exchange rate of a currency against 64 economies (inflation-adjusted): rises mean the currency gets dearer and the country loses competitiveness. Ranking with annual change, or one country's series. BIS d…
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/real-effective-fx
Real effective exchange rate of a currency against 64 economies (inflation-adjusted): rises mean the currency gets dearer and the country loses competitiveness. Ranking with annual change, or one country's series. BIS d…
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/real-interest-rates
Real interest rate of about 40 economies: central bank policy rate minus year-on-year inflation, ranked. The basis of currency carry trades and of judging how tight monetary policy is. BIS data.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/real-interest-rates
Real interest rate of about 40 economies: central bank policy rate minus year-on-year inflation, ranked. The basis of currency carry trades and of judging how tight monetary policy is. BIS data.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/regex-test
Test 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 backtr…
OptimismDeveloper toolsn/a/ request
2026-10-07
https://api.vextorium.com/v1/regex-test
Test 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 backtr…
PolygonDeveloper toolsn/a/ request
2026-10-07
https://api.vextorium.com/v1/revoke-approval
Build 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.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/revoke-approval
Build 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.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/rich-list
Addresses with the most native coin on an EVM chain (ETH on Ethereum, Base, Arbitrum, Optimism, zkSync; POL on Polygon): balance, name or label when known (exchanges, bridges, contracts) and transaction count.
OptimismOnchain datan/a/ request
2026-10-03
https://api.vextorium.com/v1/robots-txt
Parse a site's robots.txt: whether a user-agent may crawl a path, which AI crawlers (GPTBot, ClaudeBot, Google-Extended, PerplexityBot, CCBot...) are blocked, and declared sitemaps. Check before your agent scrapes.
PolygonWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/robots-txt
Parse a site's robots.txt: whether a user-agent may crawl a path, which AI crawlers (GPTBot, ClaudeBot, Google-Extended, PerplexityBot, CCBot...) are blocked, and declared sitemaps. Check before your agent scrapes.
OptimismWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/roman-numerals
Convert Arabic numbers to Roman numerals (1-3999) and Roman to Arabic, validating the canonical form (MCMXCIV) and suggesting the correct one.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/roman-numerals
Convert Arabic numbers to Roman numerals (1-3999) and Roman to Arabic, validating the canonical form (MCMXCIV) and suggesting the correct one.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/rsi-scanner
Technical scanner of Hyperliquid perpetuals: RSI(14) of the most liquid markets on 1h, 4h or 1d candles, which coins are overbought (>70) or oversold (<30), average RSI and an altcoin-strength index vs BTC (share of alt…
OptimismMarket datan/a/ request
2026-10-03
https://api.vextorium.com/v1/rss-read
Read 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.
OptimismWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/rss-read
Read 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.
PolygonWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/rwa-ranking
Ranking 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.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/rwa-ranking
Ranking 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.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/safe-multisig
Inspect a Safe (Gnosis Safe) multisig on Base, Ethereum, Arbitrum, Optimism or Polygon: owners, signature threshold (M of N), nonce, version and enabled modules, with warnings (single-signer, modules that bypass owners).
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/safe-multisig
Inspect a Safe (Gnosis Safe) multisig on Base, Ethereum, Arbitrum, Optimism or Polygon: owners, signature threshold (M of N), nonce, version and enabled modules, with warnings (single-signer, modules that bypass owners).
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/sanctions-screening
Screen a person, company, vessel or entity against the EU consolidated financial sanctions list and the US OFAC SDN list, with fuzzy matching of names and aliases, program, type, countries and reference. For KYC/AML bef…
PolygonSecurityn/a/ request
2026-10-05
https://api.vextorium.com/v1/sanctions-screening
Screen a person, company, vessel or entity against the EU consolidated financial sanctions list and the US OFAC SDN list, with fuzzy matching of names and aliases, program, type, countries and reference. For KYC/AML bef…
OptimismSecurityn/a/ request
2026-10-05
https://api.vextorium.com/v1/satellite-passes
Next passes of a satellite over a location (ISS by default, any NORAD id): rise, culmination and set times in UTC, max elevation, direction and whether it will be sunlit under a dark sky (visible to the naked eye). Orbi…
PolygonOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/satellite-passes
Next passes of a satellite over a location (ISS by default, any NORAD id): rise, culmination and set times in UTC, max elevation, direction and whether it will be sunlit under a dark sky (visible to the naked eye). Orbi…
OptimismOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/savings-plan
Savings or investment plan with monthly contributions and compound interest: final value, total contributed, interest earned, value in today's money after inflation, yearly evolution and the monthly amount needed to rea…
OptimismOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/savings-plan
Savings or investment plan with monthly contributions and compound interest: final value, total contributed, interest earned, value in today's money after inflation, yearly evolution and the monthly amount needed to rea…
PolygonOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/scholarly-search
Search scholarly literature across all fields in OpenAlex (250M+ works): title, authors, institutions, year, journal, citation count, DOI and open-access link; by relevance, citations or date.
OptimismSearchn/a/ request
2026-10-06
https://api.vextorium.com/v1/scholarly-search
Search scholarly literature across all fields in OpenAlex (250M+ works): title, authors, institutions, year, journal, citation count, DOI and open-access link; by relevance, citations or date.
PolygonSearchn/a/ request
2026-10-06
https://api.vextorium.com/v1/sec-13d-latest
Latest disclosures of stakes above 5% filed with the SEC: Schedule 13D (activist investors) or 13G (passive), with subject company, filer, date and link, including amendments.
PolygonOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/sec-13d-latest
Latest disclosures of stakes above 5% filed with the SEC: Schedule 13D (activist investors) or 13G (passive), with subject company, filer, date and link, including amendments.
OptimismOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/sec-8k-latest
Most recent 8-K current reports filed with the SEC (material events of US companies) with their items: earnings (2.02), material agreements (1.01), officer changes (5.02), acquisitions (2.01), bankruptcy (1.03)... Filte…
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/sec-8k-latest
Most recent 8-K current reports filed with the SEC (material events of US companies) with their items: earnings (2.02), material agreements (1.01), officer changes (5.02), acquisitions (2.01), bankruptcy (1.03)... Filte…
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/sec-company-profile
Official profile of a US listed company from the SEC: name, CIK, industry (SIC), state of incorporation, fiscal year end, address, phone, tickers and exchanges, former names and latest filing.
OptimismIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/sec-company-profile
Official profile of a US listed company from the SEC: name, CIK, industry (SIC), state of incorporation, fiscal year end, address, phone, tickers and exchanges, former names and latest filing.
PolygonIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/sec-company-ranking
Rank US listed companies by a figure from their SEC filings (revenue, net income, assets, cash, long-term debt, R&D, dividends paid or buybacks) for a year (CY2025) or quarter (CY2026Q1), with ticker and exchange.
PolygonMarket datan/a/ request
2026-10-05
https://api.vextorium.com/v1/sec-company-ranking
Rank US listed companies by a figure from their SEC filings (revenue, net income, assets, cash, long-term debt, R&D, dividends paid or buybacks) for a year (CY2025) or quarter (CY2026Q1), with ticker and exchange.
OptimismMarket datan/a/ request
2026-10-05
https://api.vextorium.com/v1/sec-insiders-latest
Latest SEC Form 4 insider filings across the whole US market: issuer company, who filed (directors, officers, 10% owners), date and link. Filter by company or person. For one company's trade details use insiders-empresa.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/sec-insiders-latest
Latest SEC Form 4 insider filings across the whole US market: issuer company, who filed (directors, officers, 10% owners), date and link. Filter by company or person. For one company's trade details use insiders-empresa.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/security-headers
Website security headers audit: HTTPS, HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and cookie flags, with a score.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/security-headers
Website security headers audit: HTTPS, HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and cookie flags, with a score.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/semver-compare
Sort 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.
OptimismSearchn/a/ request
2026-10-06
https://api.vextorium.com/v1/semver-compare
Sort 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.
PolygonSearchn/a/ request
2026-10-06
https://api.vextorium.com/v1/seo-audit
SEO and sharing metadata of a page: title and description with length, canonical, robots, language, hreflang, Open Graph, Twitter Card, JSON-LD types, favicon, H1/H2, plus warnings (missing tags, noindex, multiple H1).
OptimismWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/seo-audit
SEO and sharing metadata of a page: title and description with length, canonical, robots, language, hreflang, Open Graph, Twitter Card, JSON-LD types, favicon, H1/H2, plus warnings (missing tags, noindex, multiple H1).
PolygonWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/sitemap-urls
List the URLs of a site's XML sitemap (found via robots.txt if needed, following sitemap indexes and .gz files) with last-modified dates, optionally filtered by text. Discover a site's pages for crawling or monitoring.
OptimismDeveloper toolsn/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.