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/ics-to-json
Turn 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.
OptimismDeveloper toolsn/a/ request
2026-10-07
https://api.vextorium.com/v1/ics-to-json
Turn 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.
PolygonDeveloper toolsn/a/ request
2026-10-07
https://api.vextorium.com/v1/image-convert
Convert and resize an image (URL or base64) to WebP, JPEG or PNG keeping aspect ratio and stripping EXIF/GPS metadata; returns base64 and a data URI with the size saving.
PolygonMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/image-convert
Convert and resize an image (URL or base64) to WebP, JPEG or PNG keeping aspect ratio and stripping EXIF/GPS metadata; returns base64 and a data URI with the size saving.
OptimismMedian/a/ request
2026-10-06
https://api.vextorium.com/v1/image-metadata
Metadata of an image (URL or base64): format, dimensions, color mode, transparency, size, DPI, animation and EXIF (camera, date, software), flagging embedded GPS location.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/image-metadata
Metadata of an image (URL or base64): format, dimensions, color mode, transparency, size, DPI, animation and EXIF (camera, date, software), flagging embedded GPS location.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/image-palette
Dominant colors of an image (URL or base64) with their share, in HEX and RGB, plus the average color and light/dark tone. For brand palettes, themes or tagging images by color.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/image-palette
Dominant colors of an image (URL or base64) with their share, in HEX and RGB, plus the average color and light/dark tone. For brand palettes, themes or tagging images by color.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/impermanent-loss
Impermanent loss calculator for Uniswap v2 (full range) and v3/v4 concentrated ranges: IL vs holding, out-of-range flag and final token mix.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/impermanent-loss
Impermanent loss calculator for Uniswap v2 (full range) and v3/v4 concentrated ranges: IL vs holding, out-of-range flag and final token mix.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/insider-trades
Latest trades by officers, directors and 10% holders of a US listed company (SEC Form 4): who (title), date, buy or sell, transaction type, shares, price, value and holdings after, plus totals of open-market buys and se…
OptimismMarket datan/a/ request
2026-10-05
https://api.vextorium.com/v1/insider-trades
Latest trades by officers, directors and 10% holders of a US listed company (SEC Form 4): who (title), date, buy or sell, transaction type, shares, price, value and holdings after, plus totals of open-market buys and se…
PolygonMarket datan/a/ request
2026-10-05
https://api.vextorium.com/v1/ip-info
Public information about an IP address: network prefix, autonomous system (ASN) and holder, registration country, regional registry and abuse contact, or whether it is private/reserved. RIPEstat data.
OptimismIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/ip-info
Public information about an IP address: network prefix, autonomous system (ASN) and holder, registration country, regional registry and abuse contact, or whether it is private/reserved. RIPEstat data.
PolygonIdentityn/a/ request
2026-10-06
https://api.vextorium.com/v1/ip-subnet
IPv4/IPv6 subnet calculator: network, mask, wildcard, broadcast, first/last host, usable hosts, address type (private, public, loopback...) and whether a given IP belongs to the subnet.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/ip-subnet
IPv4/IPv6 subnet calculator: network, mask, wildcard, broadcast, first/last host, usable hosts, address type (private, public, loopback...) and whether a given IP belongs to the subnet.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/isin-validate
Validate a securities ISIN (ISO 6166): format, check digit, issuing country and embedded CUSIP (US/CA, with its own check) or SEDOL (GB/IE). Computed locally; nothing stored.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/isin-validate
Validate a securities ISIN (ISO 6166): format, check digit, issuing country and embedded CUSIP (US/CA, with its own check) or SEDOL (GB/IE). Computed locally; nothing stored.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/json-diff
Deep comparison of two JSON documents: added, removed and changed values with their exact path, optionally ignoring list order. Detect changes in API responses, configs or data snapshots.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/json-diff
Deep comparison of two JSON documents: added, removed and changed values with their exact path, optionally ignoring list order. Detect changes in API responses, configs or data snapshots.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/json-inspect
Validate JSON (with line and column of the error), pretty-print or minify it, describe its structure (depth, keys, value types) and extract a value by path such as data.items[0].price.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/json-inspect
Validate JSON (with line and column of the error), pretty-print or minify it, describe its structure (depth, keys, value types) and extract a value by path such as data.items[0].price.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/json-repair
Repair broken JSON, typical of LLM output: strips ```json fences, comments and surrounding text, trailing commas, single quotes, unquoted keys, Python True/None and unclosed brackets. Returns the object and clean JSON a…
OptimismDeveloper toolsn/a/ request
2026-10-07
https://api.vextorium.com/v1/json-repair
Repair broken JSON, typical of LLM output: strips ```json fences, comments and surrounding text, trailing commas, single quotes, unquoted keys, Python True/None and unclosed brackets. Returns the object and clean JSON a…
PolygonDeveloper toolsn/a/ request
2026-10-07
https://api.vextorium.com/v1/json-schema-generate
Generate a JSON Schema (draft 2020-12) from an example JSON: types, properties, arrays, required fields and formats (date, date-time, email, uri). For API docs, tool definitions and output validation.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/json-schema-generate
Generate a JSON Schema (draft 2020-12) from an example JSON: types, properties, arrays, required fields and formats (date, date-time, email, uri). For API docs, tool definitions and output validation.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/json-schema-validate
Validate JSON data against a JSON Schema (drafts 4 to 2020-12, with format checks): valid flag and every error with its exact path and failing rule. Check API responses or LLM structured output.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/json-schema-validate
Validate JSON data against a JSON Schema (drafts 4 to 2020-12, with format checks): valid flag and every error with its exact path and failing rule. Check API responses or LLM structured output.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/jsonpath
Query a JSON document with JSONPath, including filters and functions ($.items[?(@.price > 10)].name, $..id...): matching values and their paths. Send the JSON in «datos» or a URL to fetch it.
OptimismMarket datan/a/ request
2026-10-07
https://api.vextorium.com/v1/jsonpath
Query a JSON document with JSONPath, including filters and functions ($.items[?(@.price > 10)].name, $..id...): matching values and their paths. Send the JSON in «datos» or a URL to fetch it.
PolygonMarket datan/a/ request
2026-10-07
https://api.vextorium.com/v1/jwt-verify
Decode a JWT and verify its signature with the public keys of a JWKS URL (RS256, ES256, EdDSA...) or an HMAC secret, checking expiry, audience and issuer; returns header, claims and the exact reason if invalid. Tokens a…
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/jwt-verify
Decode a JWT and verify its signature with the public keys of a JWKS URL (RS256, ES256, EdDSA...) or an HMAC secret, checking expiry, audience and issuer; returns header, claims and the exact reason if invalid. Tokens a…
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/kaspa-address
Kaspa: balance of an address (kaspa:...) with transaction count and USD value; without an address, network status (blocks, difficulty, hashrate, circulating and max supply).
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/kaspa-address
Kaspa: balance of an address (kaspa:...) with transaction count and USD value; without an address, network status (blocks, difficulty, hashrate, circulating and max supply).
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/keywords
Extract keywords and keyphrases from a text without AI (RAKE algorithm scoring frequency and degree), in Spanish or English, plus most frequent words. For tagging, indexing and SEO.
OptimismDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/keywords
Extract keywords and keyphrases from a text without AI (RAKE algorithm scoring frequency and degree), in Spanish or English, plus most frequent words. For tagging, indexing and SEO.
PolygonDeveloper toolsn/a/ request
2026-10-06
https://api.vextorium.com/v1/latest-block
Latest block on an EVM chain: number, hash, time, age in seconds, transaction count, gas used % and base fee.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/latest-block
Latest block on an EVM chain: number, hash, time, age in seconds, transaction count, gas used % and base fee.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/lei-search
Find a company's LEI (Legal Entity Identifier) by name, or the record of a LEI: legal name, country, legal form, address, entity and registration status, renewal date, direct parent and company register number.
OptimismOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/lei-search
Find a company's LEI (Legal Entity Identifier) by name, or the record of a LEI: legal name, country, legal form, address, entity and registration status, renewal date, direct parent and company register number.
PolygonOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/lei-validate
Validate a Legal Entity Identifier (LEI, ISO 17442): 20-character format and mod-97 check digits, split into LOU prefix and entity part. Computed locally; does not query GLEIF.
OptimismOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/lei-validate
Validate a Legal Entity Identifier (LEI, ISO 17442): 20-character format and mod-97 check digits, split into LOU prefix and entity part. Computed locally; does not query GLEIF.
PolygonOthern/a/ request
2026-10-06
https://api.vextorium.com/v1/lending-yields
Supply yield for an asset on the most used lending markets (Aave v3, Morpho, Compound v3, Spark, Euler, Fluid) by chain: total, base and reward APY and TVL, best first.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/lending-yields
Supply yield for an asset on the most used lending markets (Aave v3, Morpho, Compound v3, Spark, Euler, Fluid) by chain: total, base and reward APY and TVL, best first.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/liquid-staking-rates
On-chain exchange rate of the main Ethereum liquid staking tokens (wstETH, rETH, cbETH, weETH, sfrxETH) against ETH, read from their contracts, with current APY from DefiLlama.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/liquid-staking-rates
On-chain exchange rate of the main Ethereum liquid staking tokens (wstETH, rETH, cbETH, weETH, sfrxETH) against ETH, read from their contracts, with current APY from DefiLlama.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/list-compare
Compare two lists (emails, IDs, wallets, SKUs...): items in both, only in A, only in B, duplicates within each and union, with counts. Up to 100,000 items per list.
PolygonOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/list-compare
Compare two lists (emails, IDs, wallets, SKUs...): items in both, only in A, only in B, duplicates within each and union, with counts. Up to 100,000 items per list.
OptimismOnchain datan/a/ request
2026-10-06
https://api.vextorium.com/v1/llm-prices
Price per million input and output tokens of 300+ language models (OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek...) via OpenRouter, with context window and the estimated cost of one call with your token counts; fi…
OptimismAI modelsn/a/ request
2026-10-07
https://api.vextorium.com/v1/llm-prices
Price per million input and output tokens of 300+ language models (OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek...) via OpenRouter, with context window and the estimated cost of one call with your token counts; fi…
PolygonAI modelsn/a/ request
2026-10-07
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.