OwlChart Market Data
payment-ready until 2026-11-03
Live crypto and market data for AI agents, paid per request in USDC on Base (x402 v2): liquidity magnets, order book walls, funding and open interest across 13 exchanges, liquidations, spot ETF flows, candles, chart patterns, the Owl Score, news and three ready packs (coin brief, trade setup, money flows).
Compare: all crypto price APIs · all news APIs
Call it x402 v2
x402 v2
- Base URL
- https://owlchart.com
- Payment
- x402 v2, header channel
$ curl -i 'https://owlchart.com/api/x402/candles' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.
Endpoints 13 paid routes on owlchart.com
GET/api/x402/candles Base$0.03since 10-27
GET/api/x402/etf-flows Base$0.03since 10-27
GET/api/x402/funding-oi Base$0.03since 10-27
GET/api/x402/heatmap Base$0.03since 10-27
GET/api/x402/liquidations Base$0.03since 10-27
GET/api/x402/news Base$0.03since 10-27
GET/api/x402/orderbook Base$0.03since 10-27
GET/api/x402/pack-coin-brief Base$0.03since 10-27
5 more in Example 402 response
Prices as captured in the 402 response: median $0.03 across the 13 endpoints, unchanged since first capture.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| GET | / | Live price, change, high, low and the recent candles for any crypto, stock, ETF, forex or commodity market on any timeframe from 1 minute to 1 month. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | Daily net flows of the US spot Bitcoin or Ether ETFs, fund by fund (BlackRock IBIT, Fidelity FBTC and the rest), with the running totals. Use it to track institutional buying and selling. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | Perpetual funding rates by exchange and total open interest across 13 exchanges for a coin, in one call. Use it to see how crowded longs or shorts are. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | Where leveraged liquidity sits above and below the price of a coin, the strongest liquidation magnets with size and distance, and which way the price is being pulled. Use it to judge the likely next move of BTC, ETH or any major coin. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | Long and short liquidations for a coin over the last hours, by exchange, with the biggest single liquidations. Use it after a sharp move to see who was forced out. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | The live crypto and stock market news wire with source, time and the price move since each headline, plus the economic calendar. Stories from The Owl Journal, OwlChart's newsroom. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | The largest resting buy and sell walls for a coin across major exchanges, with price, size and distance from the market. Use it to find support and resistance that real money is defending. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | Everything OwlChart knows about one coin in a single call: liquidity magnets, order book walls, funding and open interest across 13 exchanges, 24 hour liquidations, the Owl Score and the latest headlines. The one call an agent needs before judging a coin. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | The institutional and market-wide picture in a single call: spot Bitcoin and Ether ETF flows fund by fund, where money moved today across crypto and traditional markets, and the live news wire. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | The chart read for one market in a single call: recent candles and trend, chart patterns on the latest closed candles, the liquidity magnets above and below and the order book walls. For agents that plan levels and timing. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | Candlestick and chart patterns found on the latest closed candles of a market, bullish or bearish, with how each pattern has performed historically on that market. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | Where money moved today across crypto and traditional markets: the biggest gainers and losers, volume spikes and sector rotation, in one call. | $0.03 | Base | USDC | header | since 10-27 |
| GET | / | OwlChart's single score for a coin, built from trend, liquidity, positioning and flows, with the parts that drive it. Use it as a quick read of whether conditions favour the coin. | $0.03 | Base | USDC | header | since 10-27 |
Payment evidence
402 payload captured at . Check evidence JSON · Measurement methodology.
First of 13 payloads captured by the monitor.
120 lines, scroll inside
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/heatmap",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "Where leveraged liquidity sits above and below the price of a coin, the strongest liquidation magnets with size and distance, and which way the price is being pulled. Use it to judge the likely next move of BTC, ETH or any major coin.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"coin": "BTC"
}
},
"output": {
"type": "json",
"example": {
"coin": "BTC",
"pull": "up",
"price": 82266,
"magnets_above": [
{
"usd": 412000000,
"price": 84100
}
],
"magnets_below": [
{
"usd": 298000000,
"price": 80200
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"coin"
],
"properties": {
"coin": {
"type": "string",
"description": "Coin ticker, e.g. BTC, ETH, SOL"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
} Other captured 402 responses (12)
Captured payload 2 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/orderbook",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "The largest resting buy and sell walls for a coin across major exchanges, with price, size and distance from the market. Use it to find support and resistance that real money is defending.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"coin": "ETH"
}
},
"output": {
"type": "json",
"example": {
"asks": [
{
"usd": 22100000,
"price": 2295,
"venue": "okx"
}
],
"bids": [
{
"usd": 18400000,
"price": 2210,
"venue": "binance"
}
],
"coin": "ETH"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"coin"
],
"properties": {
"coin": {
"type": "string",
"description": "Coin ticker, e.g. ETH"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 3 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/funding-oi",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "Perpetual funding rates by exchange and total open interest across 13 exchanges for a coin, in one call. Use it to see how crowded longs or shorts are.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"coin": "SOL"
}
},
"output": {
"type": "json",
"example": {
"coin": "SOL",
"funding": {
"bybit": 0.00008,
"binance": 0.0001
},
"open_interest": {
"total_usd": 6100000000
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"coin"
],
"properties": {
"coin": {
"type": "string",
"description": "Coin ticker, e.g. SOL"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 4 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/pack-trade-setup",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "The chart read for one market in a single call: recent candles and trend, chart patterns on the latest closed candles, the liquidity magnets above and below and the order book walls. For agents that plan levels and timing.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"symbol": "ETH",
"interval": "4h"
}
},
"output": {
"type": "json",
"example": {
"parts": {
"candles": {
"last": 2250
},
"heatmap": {},
"patterns": {
"latest": []
},
"orderbook": {}
},
"symbol": "ETH"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"description": "Ticker such as BTC or ETH"
},
"interval": {
"type": "string",
"description": "15m 1h 4h or 1d, default 1h"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 5 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/liquidations",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "Long and short liquidations for a coin over the last hours, by exchange, with the biggest single liquidations. Use it after a sharp move to see who was forced out.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"coin": "BTC",
"hours": 24
}
},
"output": {
"type": "json",
"example": {
"coin": "BTC",
"hours": 24,
"long_liquidated_usd": 182000000,
"short_liquidated_usd": 64000000
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"coin"
],
"properties": {
"coin": {
"type": "string",
"description": "Coin ticker, e.g. BTC"
},
"hours": {
"type": "integer",
"description": "Look-back window in hours, 1 to 168, default 24"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 6 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/candles",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "Live price, change, high, low and the recent candles for any crypto, stock, ETF, forex or commodity market on any timeframe from 1 minute to 1 month.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"symbol": "BTC",
"interval": "1h"
}
},
"output": {
"type": "json",
"example": {
"id": "crypto_perp:bybit:BTCUSDT",
"low": 81020,
"high": 82900,
"last": 82266.4,
"interval": "1h",
"change_pct": 1.2
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"description": "Ticker such as BTC or AAPL, or an OwlChart id"
},
"interval": {
"type": "string",
"description": "One of 1m 5m 15m 30m 1h 4h 12h 1d 1w 1M, default 1h"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 7 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/etf-flows",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "Daily net flows of the US spot Bitcoin or Ether ETFs, fund by fund (BlackRock IBIT, Fidelity FBTC and the rest), with the running totals. Use it to track institutional buying and selling.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"asset": "btc"
}
},
"output": {
"type": "json",
"example": {
"day": "15-10-2026",
"asset": "btc",
"ibit_usd": -110900000,
"total_usd": -261400000
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"asset": {
"type": "string",
"description": "btc or eth, default btc"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 8 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/score",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "OwlChart's single score for a coin, built from trend, liquidity, positioning and flows, with the parts that drive it. Use it as a quick read of whether conditions favour the coin.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"coin": "BTC"
}
},
"output": {
"type": "json",
"example": {
"coin": "BTC",
"parts": {
"trend": 58,
"liquidity": 71,
"positioning": 55
},
"score": 62
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"coin"
],
"properties": {
"coin": {
"type": "string",
"description": "Coin ticker, e.g. BTC"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 9 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/news",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "The live crypto and stock market news wire with source, time and the price move since each headline, plus the economic calendar. Stories from The Owl Journal, OwlChart's newsroom.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"coin": "BTC"
}
},
"output": {
"type": "json",
"example": {
"wire": [
{
"time": "15-10-2026 14:02 UTC",
"source": "Reuters",
"headline": "Spot bitcoin funds see outflows",
"move_since_pct": -0.8
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"coin": {
"type": "string",
"description": "Optional coin, e.g. BTC"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 10 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/patterns",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "Candlestick and chart patterns found on the latest closed candles of a market, bullish or bearish, with how each pattern has performed historically on that market.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"symbol": "ETH",
"interval": "4h"
}
},
"output": {
"type": "json",
"example": {
"latest": [
{
"side": "bullish",
"pattern": "Bullish engulfing"
}
],
"symbol": "ETHUSDT",
"interval": "4h"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"description": "Ticker or OwlChart id, e.g. ETH"
},
"interval": {
"type": "string",
"description": "15m 1h 4h or 1d, default 1h"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 11 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/radar",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "Where money moved today across crypto and traditional markets: the biggest gainers and losers, volume spikes and sector rotation, in one call.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"movers": [
{
"symbol": "SOL",
"change_pct": 6.1
}
],
"read_at": "16-10-2026 09:00 UTC"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 12 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/pack-coin-brief",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "Everything OwlChart knows about one coin in a single call: liquidity magnets, order book walls, funding and open interest across 13 exchanges, 24 hour liquidations, the Owl Score and the latest headlines. The one call an agent needs before judging a coin.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"coin": "BTC"
}
},
"output": {
"type": "json",
"example": {
"coin": "BTC",
"parts": {
"news": {},
"score": {
"score": 62
},
"heatmap": {
"pull": "up"
},
"orderbook": {},
"funding-oi": {},
"liquidations": {}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"coin"
],
"properties": {
"coin": {
"type": "string",
"description": "Coin ticker, e.g. BTC, ETH, SOL"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 13 of 13
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xd71a560ad75c3e9011eefe15c3a7a3ba45eefea2",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://owlchart.com/api/x402/pack-money-flows",
"tags": [
"crypto",
"market-data",
"trading",
"liquidity",
"finance"
],
"iconUrl": "https://owlchart.com/icon-512.png",
"mimeType": "application/json",
"description": "The institutional and market-wide picture in a single call: spot Bitcoin and Ether ETF flows fund by fund, where money moved today across crypto and traditional markets, and the live news wire.",
"serviceName": "OwlChart"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"parts": {
"news": {},
"radar": {},
"etf-flows": {
"total_usd": -261400000
},
"etf-flows-eth": {}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Can I trust it score from our own monitoring
score from our own monitoring
84/100 Solid
#60 of 129 in Finance. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.
- Reliability
- 100% uptime since 10-27
- Compliance
- A 14/14 checks pass
- Price
- $0.03 p72 in Finance
- Risk
- clean no risk flag
- Traction
- $0.00 30d 0 buyers
14/14 compliance checks
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
402 terms unchanged since 2026-10-27. Last up 2026-10-27.
── Site signals
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
How the score works
What the score read on this service: status online, 100% uptime, latest daily rollup (no 30d window yet), 254ms response p95, x402 compliance 14 of 14, $0.03 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.
The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.
Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.
It is a score inside Finance, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 129 listings, this one among them: the same 129 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.
Traction is a conservative undercount.
All measured facts
What it does
Live crypto and market data for AI agents, paid per request in USDC on Base (x402 v2): liquidity magnets, order book walls, funding and open interest across 13 exchanges, liquidations, spot ETF flows, candles, chart patterns, the Owl Score, news and three ready packs (coin brief, trade setup, money flows).
OwlChart Market Data is a listed x402 Finance API. Captured payment terms name Base. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.
Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.
Page rendered at . This response time is separate from the observation and computation times attached to each measurement.
Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.
Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.
Observed daily coverage: 2026-09-28 to 2026-10-27 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.
Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.
x402 List home · Services · Finance
- uptime · latest daily rollup
- -
- uptime 7d
- -
- uptime 30d
- -
- uptime 90d
- -
- response p95
- 254ms
- avg response
- 254ms
- total checks
- 1
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
- price (min)
- $0.03
- category percentile (min)
- p72 in Finance
- endpoints / prices
- 13 / 1
- model
- flat
- stability
- 100%
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- 104d
- registrar
- Cloudflare, Inc.
- hosting
- custom
- domain created
- 2026-07-14
Identity facts, not a risk score.
- assessment volume 30d
- $0.00
- exact assessment volume 30d (USD)
- 0
- assessment recorded at (UTC)
- 2026-10-27T11:33:23.914Z
- buyers 30d
- 0
- settlements 30d
- 0
- measured since
- --- (start of our harvest window)
- last settlement
- ---
- top buyer share
- -
- top 3 buyers share
- -
- concentrated volume
- no
- trend 7d vs 30d
- -
- networks
- eip155:8453
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- -
- max settlement 30d
- -
Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.
- member since
- 2026-10-27
Recent checks
| Checked at (UTC) | Status | HTTP | Response | Endpoints |
|---|---|---|---|---|
| Online | 402 | 125ms | 13 | |
| Online | 402 | 68ms | 13 | |
| Online | 402 | 92ms | 13 | |
| Online | 402 | 115ms | 13 | |
| Online | 402 | 145ms | 13 | |
| Online | 402 | 81ms | 13 | |
| Online | 402 | 273ms | 13 | |
| Online | 402 | 127ms | 13 | |
| Online | 402 | 254ms | 13 |
Changes0 in 30d
No changes recorded in the last 30 days.
Over time
On-chain volume daily snapshots, USD 30d: $0.00, peak $0.03 on 10-16
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime no completed-day data
- Volume 30d
- $0.00
- Uptime
- no completed-day data
More charts
Response time daily average, ms min 166ms, avg 166ms, max 166ms
09-28 to 10-27* UTC
Each series spans only the dates it has data for. Every series is also served as JSON at /api, /scores, /volume and /buyers.
Values
* today so far, partial (UTC).
The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.
Daily snapshot total, 30d: $0.09, peak $0.03 on 10-16. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.
Daily address snapshots: 2026-09-28 to 2026-10-27 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here.
Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.
Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.
| Day | Volume | Buyers | Settlements | Uptime | Response | Compliance | Price percentile | Site signals |
|---|---|---|---|---|---|---|---|---|
| 2026-10-16 | $0.03 | 1 | 1 | no data | no data | no data | no data | no data |
| 2026-10-17 | no data | no data | no data | no data | no data | no data | no data | no data |
| 2026-10-18 | $0.03 | 1 | 1 | no data | no data | no data | no data | no data |
| 2026-10-19 | no data | no data | no data | no data | no data | no data | no data | no data |
| 2026-10-20 | no data | no data | no data | no data | no data | no data | no data | no data |
| 2026-10-21 | no data | no data | no data | no data | no data | no data | no data | no data |
| 2026-10-22 | no data | no data | no data | no data | no data | no data | no data | no data |
| 2026-10-23 | no data | no data | no data | no data | no data | no data | no data | no data |
| 2026-10-24 | no data | no data | no data | no data | no data | no data | no data | no data |
| 2026-10-25 | no data | no data | no data | no data | no data | no data | no data | no data |
| 2026-10-26 | no data | no data | no data | no data | no data | no data | no data | no data |
| 2026-10-27* | $0.03 | 1 | 1 | 100% | 165.83ms | 14/14 | p72 | 4/6 |
Alternatives in Finance
5 of 128 other ranked services in Finance, ordered by the same measured score.
Own this service?
Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.
Update this listingEarn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.
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Delisting
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