ByKaranteli · Example Payload
Bykaranteli X402 Payment Required
CryptocurrencyCrypto DerivativesMarket DataFunding RatesOpen InterestLiquidationsOptionsETF FlowsFinancial DataMCPx402Agents
Bykaranteli X402 Payment Required is an example object payload from ByKaranteli, with 5 top-level fields. It illustrates the shape of data this provider's APIs accept or return.
Top-level fields
x402Versionerrorresourceacceptsextensions
Example Payload
{
"x402Version": 2,
"error": "Payment required",
"resource": {
"url": "https://bykaranteli.com/api/x402/flow-vpin",
"description": "Order flow toxicity (VPIN) HISTORY for BTC, ETH and SOL: 90-day daily VPIN track with closes plus the last 500 volume buckets .",
"mimeType": "",
"serviceName": "ByKaranteli VPIN Flow Toxicity",
"tags": [
"crypto",
"orderflow",
"vpin",
"data"
]
},
"accepts": [
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"amount": "2000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "4JgPtoBWkQyG3QffVJC3bfgk7SCQrz9bx2SAEUTSVqzK",
"maxTimeoutSeconds": 300,
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
}
},
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x0db4c96d8b14f431f3bb8ce1a33f07d2c696a62c",
"maxTimeoutSeconds": 300,
"extra": {
"name": "USD Coin",
"version": "2"
}
}
],
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"queryParams": {},
"method": "GET"
},
"output": {
"type": "json",
"example": {
"ok": true,
"rows": [
{
"symbol": "BTCUSDT",
"vpin": 0.31,
"percentile_90d": 62.5
}
]
}
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"input": {
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"GET"
]
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"required": [
"type",
"method"
],
"additionalProperties": false
},
"output": {
"type": "object",
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
},
"required": [
"type"
]
}
},
"required": [
"input"
]
}
}
}
}
Work with this as data
Every example here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for examples
4 MCP tools reach this
find_examplesBrowse and filter every example in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This example
curl "https://apis.io/api/v1/examples/bykaranteli-x402-payment-required"
All examples
curl "https://apis.io/api/v1/examples?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.