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/number-to-words
Write a number or money amount in words, in Spanish or English (EUR, USD, GBP, MXN), with correct Spanish apocope (veintiún, un millón de euros). For invoices, cheques and contracts.
PolygonOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/number-to-words
Write a number or money amount in words, in Spanish or English (EUR, USD, GBP, MXN), with correct Spanish apocope (veintiún, un millón de euros). For invoices, cheques and contracts.
OptimismOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/oecd-leading-indicator
OECD Composite Leading Indicator, which anticipates turning points of the business cycle 6-9 months ahead: value (100 = trend), monthly change and phase (expansion, downturn, slowdown, recovery) for major economies, G7 …
OptimismWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/oecd-leading-indicator
OECD Composite Leading Indicator, which anticipates turning points of the business cycle 6-9 months ahead: value (100 = trend), monthly change and phase (expansion, downturn, slowdown, recovery) for major economies, G7 …
PolygonWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/openapi-summary
Fetch an OpenAPI/Swagger spec (JSON or YAML) and summarize it for an agent: title, version, servers, authentication schemes and every endpoint with method, path, summary and required parameters.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/openapi-summary
Fetch an OpenAPI/Swagger spec (JSON or YAML) and summarize it for an agent: title, version, servers, authentication schemes and every endpoint with method, path, summary and required parameters.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/options-volume
On-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.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/options-volume
On-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.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/package-vulnerabilities
Known vulnerabilities of a software package (npm, PyPI, Go, Maven, crates.io, NuGet, RubyGems, Packagist...) at a given version or overall: CVE/GHSA ids, summary, severity, publication date and fixed versions. Google's …
OptimismSecurityn/a/ request
2026-10-06
https://api.vextorium.com/v1/package-vulnerabilities
Known vulnerabilities of a software package (npm, PyPI, Go, Maven, crates.io, NuGet, RubyGems, Packagist...) at a given version or overall: CVE/GHSA ids, summary, severity, publication date and fixed versions. Google's …
PolygonSecurityn/a/ request
2026-10-06
https://api.vextorium.com/v1/page-images
Images on a page with URL, alt text, declared size, lazy loading and format, counting images without alt text and flagging missing modern formats. For accessibility and SEO audits.
OptimismWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/page-images
Images on a page with URL, alt text, declared size, lazy loading and format, counting images without alt text and flagging missing modern formats. For accessibility and SEO audits.
PolygonWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/page-links
All links on a page classified as internal or external, with anchor text, nofollow/sponsored, new-tab flags and the most linked external domains. For SEO, crawling and audits.
PolygonWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/page-links
All links on a page classified as internal or external, with anchor text, nofollow/sponsored, new-tab flags and the most linked external domains. For SEO, crawling and audits.
OptimismWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/password-strength
Estimate password strength with Dropbox's zxcvbn: score 0-4, estimated guesses and crack time for online and offline attacks, weak patterns found (dictionary, dates, sequences...) and tips. Evaluated in memory, never st…
PolygonSecurityn/a/ request
2026-10-06
https://api.vextorium.com/v1/password-strength
Estimate password strength with Dropbox's zxcvbn: score 0-4, estimated guesses and crack time for online and offline attacks, weak patterns found (dictionary, dates, sequences...) and tips. Evaluated in memory, never st…
OptimismSecurityn/a/ request
2026-10-06
https://api.vextorium.com/v1/pdf-extract-pages
Create a new PDF with only the pages you choose (e.g. 1-3,7) from a PDF at a URL, returned in base64.
PolygonMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/pdf-extract-pages
Create a new PDF with only the pages you choose (e.g. 1-3,7) from a PDF at a URL, returned in base64.
OptimismMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/pdf-extract-text
Extract the text of a PDF from its URL.
OptimismMedian/a/ request
2026-10-03
https://api.vextorium.com/v1/pdf-merge
Merge 2 to 10 PDFs (URLs) into one, in the given order, returned in base64.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/pdf-merge
Merge 2 to 10 PDFs (URLs) into one, in the given order, returned in base64.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/pdf-metadata
Metadata and structure of a PDF (URL): pages, page size, title, author, creator, dates, version, encryption, form fields, attachments, bookmarks (table of contents) and whether it has extractable text or is a scan.
PolygonWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/pdf-metadata
Metadata and structure of a PDF (URL): pages, page size, title, author, creator, dates, version, encryption, form fields, attachments, bookmarks (table of contents) and whether it has extractable text or is a scan.
OptimismWeb datan/a/ request
2026-10-06
https://api.vextorium.com/v1/pdf-search
Search a text inside a PDF (URL) and return every match with its page and surrounding snippet, case-insensitive. Find clauses, figures or names in long documents.
OptimismMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/pdf-search
Search a text inside a PDF (URL) and return every match with its page and surrounding snippet, case-insensitive. Find clauses, figures or names in long documents.
PolygonMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/pdf-tables
Extract the tables of a PDF (URL) as JSON rows with their page: financial reports, official lists, invoices... Works on text PDFs (not scans). Optional page range.
OptimismMedian/a/ request
2026-10-05
https://api.vextorium.com/v1/pdf-tables
Extract the tables of a PDF (URL) as JSON rows with their page: financial reports, official lists, invoices... Works on text PDFs (not scans). Optional page range.
PolygonMedian/a/ request
2026-10-05
https://api.vextorium.com/v1/pdf-text
Text of a PDF (URL) split by page with page numbers and word counts; ask for specific pages (e.g. 1-3,7). Better than one blob for citing or chunking documents.
PolygonMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/pdf-text
Text of a PDF (URL) split by page with page numbers and word counts; ask for specific pages (e.g. 1-3,7). Better than one blob for citing or chunking documents.
OptimismMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/pendle-markets
Pendle markets (fixed yield in DeFi): asset, maturity, days left, implied fixed APY (buying PT), LP APY and liquidity, on Ethereum, Arbitrum, Base, BNB and other chains.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/pendle-markets
Pendle markets (fixed yield in DeFi): asset, maturity, days left, implied fixed APY (buying PT), LP APY and liquidity, on Ethereum, Arbitrum, Base, BNB and other chains.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/perp-calculator
Perpetual futures calculator (isolated margin): liquidation price and distance, notional and size, PnL at stop-loss and take-profit, reward/risk ratio, and position sizing to risk a fixed USD amount.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/perp-calculator
Perpetual futures calculator (isolated margin): liquidation price and distance, notional and size, PnL at stop-loss and take-profit, reward/risk ratio, and position sizing to risk a fixed USD amount.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/perp-funding
Hyperliquid perpetual futures: hourly funding rate and annualized, 24h and 7d average funding, who pays whom, mark and oracle price, premium, open interest, 24h volume and max leverage for one coin; or a ranking of all …
OptimismMarket datan/a/ request
2026-10-05
https://api.vextorium.com/v1/perp-funding
Hyperliquid perpetual futures: hourly funding rate and annualized, 24h and 7d average funding, who pays whom, mark and oracle price, premium, open interest, 24h volume and max leverage for one coin; or a ranking of all …
PolygonMarket datan/a/ request
2026-10-05
https://api.vextorium.com/v1/phone-validate
Validate and normalize a phone number from any country: E.164, national and international format, type (mobile, landline, toll-free, VoIP...), country, region, original carrier and time zones. Nothing is called or store…
OptimismIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/phone-validate
Validate and normalize a phone number from any country: E.164, national and international format, type (mobile, landline, toll-free, VoIP...), country, region, original carrier and time zones. Nothing is called or store…
PolygonIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/pii-redact
Redact personal data from text without AI: emails, phone numbers, IBANs, card numbers (Luhn-checked), Spanish DNI/NIE, IPs, crypto addresses and URLs, replaced by labels ([EMAIL_1]) or asterisks. Before sending text to …
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/pii-redact
Redact personal data from text without AI: emails, phone numbers, IBANs, card numbers (Luhn-checked), Spanish DNI/NIE, IPs, crypto addresses and URLs, replaced by labels ([EMAIL_1]) or asterisks. Before sending text to …
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/ping
Test your x402 client or agent for the minimum price: confirms the payment arrived and echoes back the network, scheme, payer and amount the server saw, your IP, user agent, time and any 'eco' text you send.
PolygonDeveloper toolsn/a/ request
2026-10-07
https://api.vextorium.com/v1/ping
Test your x402 client or agent for the minimum price: confirms the payment arrived and echoes back the network, scheme, payer and amount the server saw, your IP, user agent, time and any 'eco' text you send.
OptimismDeveloper toolsn/a/ request
2026-10-07
https://api.vextorium.com/v1/pnl-calculator
Trade result: gross and net profit or loss after entry/exit fees and funding, return on margin, price change, break-even price and notional. Long or short, with leverage.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/pnl-calculator
Trade result: gross and net profit or loss after entry/exit fees and funding, return on margin, price change, break-even price and notional. Long or short, with leverage.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/polymarket-crypto-odds
Implied probability distribution of a crypto price from Polymarket ladder markets ("Will BTC be above X on date D?"): probability for each price level and date and the implied median. BTC, ETH, SOL, XRP.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/polymarket-crypto-odds
Implied probability distribution of a crypto price from Polymarket ladder markets ("Will BTC be above X on date D?"): probability for each price level and date and the implied median. BTC, ETH, SOL, XRP.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/polymarket-events
Polymarket 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 sea…
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/polymarket-events
Polymarket 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 sea…
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/polymarket-history
How the probability of a Polymarket outcome moved over the last hour, day, week, month or all time, with max, min and change in percentage points.
OptimismMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/polymarket-history
How the probability of a Polymarket outcome moved over the last hour, day, week, month or all time, with max, min and change in percentage points.
PolygonMarket datan/a/ request
2026-10-06
https://api.vextorium.com/v1/polymarket-holders
Largest holders of each outcome of a Polymarket market (by slug): wallet and shares, with the sum of the top holders. See where the whales are betting.
PolygonMarket 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.