cryptofeed402
payment-ready until 2026-11-03
Hyperliquid funding rates, open interest and perps market data for AI agents: extreme funding ranks, funding history, /perps and /outlook pre-trade preflight, news sentiment, twice-daily brief, and agent-readiness audit.
Compare: all crypto price APIs · all news APIs · all sentiment analysis APIs
Call it x402 v2
x402 v2
- Base URL
- https://cryptofeed402.site
- Payment
- x402 v2, header channel
$ curl -i 'https://cryptofeed402.site/attention' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.
Endpoints 11 paid routes on cryptofeed402.site
GET/attention Base$0.003since 10-27
GET/audit/agent-ready Base$0.05since 10-27
GET/brief/latest Base$0.015since 10-27
GET/funding/extreme Base$0.0025since 10-27
GET/funding/history/BTC Base$0.005since 10-27
GET/history Base$0.005since 10-27
GET/narratives/weekly Base$0.025since 10-27
GET/outlook/BTC Base$0.01since 10-27
3 more in Example 402 response
Prices as captured in the 402 response: median $0.005 across the 11 endpoints, unchanged since first capture.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| GET | / | Per-coin headline mention volume vs that coin's 7-day average from the latest 12h Legion Go tagger run. Ranked table (symbol, mentions_12h, avg_7d, ratio, z, rank). Volume signal, not tone (use /sentiment for bullish/bearish). No/stale data 503 before any 402, no charge. JSON. Free sample at /samples/attention. $0.003 USDC per call on Base. | $0.003 | Base | USDC | header | since 10-27 |
| GET | / | Agent-readiness audit for a public website or x402 API: checks llms.txt, robots.txt AI-crawler rules, sitemap, OpenAPI, /.well-known/x402, agent card, an MCP initialize probe, a live unpaid 402 challenge (accepts, network, payTo, Bazaar metadata) and listings on Roundhouse, 402 Index and x402 Doctor. Returns a 0-100 score, pass/warn/fail per check with evidence and a concrete fix. Deterministic, no LLM. Free example at /audit/sample. $0.05 USDC per call on Base. | $0.05 | Base | USDC | header | since 10-27 |
| GET | / | LLM-written crypto market brief, published twice daily: analysis, not just raw numbers. Plain-English headline and bottom line, sentiment and Fear & Greed, funding rates and open interest (OKX + Hyperliquid) with crowded-trade flags, extreme funding, watchlist prices and 24h/7d moves, top news, macro economic calendar and token unlocks for the next 7 days. JSON plus markdown. Free preview at /brief/sample. $0.015 USDC per call on Base. | $0.015 | Base | USDC | header | since 10-27 |
| GET | / | Perpetual futures funding rates and open interest (Hyperliquid), live: the 10 perps with the most extreme funding rate now (over $1M 24h volume), each with annualized funding APR and open interest in USD, plus the current funding rate for a BTC/ETH/SOL/HYPE/NEAR/AAVE watchlist. Use it to spot crowded longs or shorts, squeeze risk and funding-carry candidates. For one perp's full funding + OI snapshot use /perps/{symbol}. JSON. Free sample: /samples/funding. $0.0025 USDC per call on Base. | $0.0025 | Base | USDC | header | since 10-27 |
| GET | / | Funding rate history for one Hyperliquid perp (incl. HIP-3): each hourly settlement's rate (hourly, 8h, annualized) and premium, or interval=4h/8h/1d UTC buckets, plus mean/min/max, positive/negative hours and cumulative rate. hours=1-720 (default 168) or from/to; up to 2160 hours with 4h/8h/1d; back to listing. Bad params 400, unknown symbol 404, no charge. Free sample at /samples/funding-history. $0.005 USDC per call on Base. | $0.005 | Base | USDC | header | since 10-27 |
| GET | / | Archive of past cryptofeed402 twice-daily LLM-written market briefs for a date range (from/to as YYYY-MM-DD, up to 366 days): sentiment, funding, open interest, prices, news and macro calendar per edition. Use it for backtesting, building historical context or reviewing how funding and sentiment evolved. JSON. Free sample at /samples/history. $0.005 USDC per day in range, capped at $0.5 per call, on Base. | $0.005 | Base | USDC | header | since 10-27 |
| GET | / | Weekly narratives pack: top 5-8 multi-outlet story clusters from seven days of headline-tagger events, each with title, short blurb, outlet counts and links. Published about weekly (Sunday PT). No/stale data 503 before any 402, no charge. JSON. Free sample at /samples/narratives-weekly. $0.025 USDC per call on Base. | $0.025 | Base | USDC | header | since 10-27 |
| GET | / | Pre-trade preflight for one Hyperliquid perp (incl. HIP-3 like xyz:TSLA) in one call: short factual summary plus perp mark vs OKX spot and oracle in bps, funding (hourly/8h/annualized, next_funding_time) and its extreme rank, open interest and change vs ~1h/4h/24h/7d, news sentiment, as_of per component and neutral flags (funding_extreme, oi_spike, venue_divergence, stale_component). Factual checks, no recommendation. Unknown symbol 404, no charge. Free sample at /samples/outlook. $0.01 USDC per call on Base. | $0.01 | Base | USDC | header | since 10-27 |
| GET | / | Perpetual futures funding rate and open interest snapshot for one Hyperliquid perp (any listed coin, e.g. BTC or HIP-3 xyz:TSLA): current hourly funding, 8h and annualized rate, next_funding_time (next UTC hour) and time_to_next_seconds, open interest in coins and USD, 24h volume, mark and oracle price, premium, 24h change, and whether it ranks in the top 10 funding extremes. venues[] uses symbol / venue / funding_rate / open_interest_usd plus as_of. Unknown symbols: 404, no charge. JSON. Free sample at /samples/perps. $0.002 USDC per call on Base. | $0.002 | Base | USDC | header | since 10-27 |
| GET | / | Live snapshot for any listed Hyperliquid perp (BTC, ETH, SOL, kPEPE, ... and HIP-3 like xyz:TSLA): perp mark price, hourly funding rate and annualized funding APR, open interest in coins and USD, 24h volume and premium, plus OKX spot last price and 24h change when listed. Use it for current price and perp positioning of one asset before sizing a trade. Unknown symbol 404, no charge. JSON. Free sample at /samples/price. $0.0025 USDC per call on Base. | $0.0025 | Base | USDC | header | since 10-27 |
| GET | / | Crypto news sentiment for one asset (BTC, ETH, SOL, HYPE, NEAR, AAVE and others; list at /sentiment): a -1..1 score with bearish/neutral/bullish label, counts of positive, negative and neutral headlines in the window, and up to 5 top headlines with source, link and stance. Headlines are labeled by a local LLM; the score is plain arithmetic. Refreshed about every 15 min. Unknown symbol 404, stale data 503, no charge. JSON. Free sample at /samples/sentiment. $0.002 USDC per call on Base. | $0.002 | Base | USDC | header | since 10-27 |
Payment evidence
402 payload captured at . Check evidence JSON · Measurement methodology.
First of 11 payloads captured by the monitor.
186 lines, scroll inside
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/outlook/BTC",
"tags": [
"pre-trade",
"perpetuals",
"funding-rate",
"open-interest",
"trading-agents"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Pre-trade preflight for one Hyperliquid perp (incl. HIP-3 like xyz:TSLA) in one call: short factual summary plus perp mark vs OKX spot and oracle in bps, funding (hourly/8h/annualized, next_funding_time) and its extreme rank, open interest and change vs ~1h/4h/24h/7d, news sentiment, as_of per component and neutral flags (funding_extreme, oi_spike, venue_divergence, stale_component). Factual checks, no recommendation. Unknown symbol 404, no charge. Free sample at /samples/outlook. $0.01 USDC per call on Base.",
"serviceName": "cryptofeed402 pre-trade preflight"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"symbol": "BTC"
},
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"as_of": "2026-10-20T00:00:00.000Z",
"flags": {
"oi_spike": false,
"funding_extreme": false,
"stale_component": false,
"venue_divergence": false
},
"price": {
"spot_px": 100010,
"perp_mark_px": 100000,
"mark_vs_spot_bps": -1,
"mark_vs_oracle_bps": -2
},
"symbol": "BTC",
"funding": {
"in_top10": false,
"extreme_rank": 23,
"annualized_pct": 10.95
},
"summary": "BTC funding ~11% annualized (longs paying), rank 23/70 — not top-10 extreme. OI +6.2% over 24h. Mark within 5 bps of OKX spot and oracle. News sentiment bullish (0.25). No active flags.",
"sentiment": {
"label": "bullish",
"score": 0.25,
"available": true
},
"active_flags": [],
"open_interest": {
"usd": 3000000000,
"change_1h_pct": 0.8,
"change_24h_pct": 6.2
}
}
}
},
"schema": {
"type": "object",
"$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"
},
"pathParams": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"pattern": "^(?:[A-Za-z]{1,10}:)?[A-Za-z0-9]{1,20}$",
"description": "Hyperliquid perp ticker, case-insensitive; HIP-3 as dex:TICKER (xyz:TSLA)"
}
}
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"symbol",
"as_of",
"summary",
"price",
"funding",
"open_interest",
"flags"
],
"properties": {
"as_of": {
"type": "string"
},
"flags": {
"type": "object"
},
"price": {
"type": "object"
},
"symbol": {
"type": "string"
},
"funding": {
"type": "object"
},
"summary": {
"type": "string"
},
"freshness": {
"type": "object"
},
"sentiment": {
"type": "object"
},
"active_flags": {
"type": "array",
"items": {
"type": "string"
}
},
"open_interest": {
"type": "object"
}
}
}
}
}
}
}
}
},
"x402Version": 2
} Other captured 402 responses (10)
Captured payload 2 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/funding/history/BTC",
"tags": [
"funding-rate",
"historical-data",
"perpetuals",
"backtesting",
"hyperliquid"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Funding rate history for one Hyperliquid perp (incl. HIP-3): each hourly settlement's rate (hourly, 8h, annualized) and premium, or interval=4h/8h/1d UTC buckets, plus mean/min/max, positive/negative hours and cumulative rate. hours=1-720 (default 168) or from/to; up to 2160 hours with 4h/8h/1d; back to listing. Bad params 400, unknown symbol 404, no charge. Free sample at /samples/funding-history. $0.005 USDC per call on Base.",
"serviceName": "cryptofeed402 funding history"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"symbol": "BTC"
},
"queryParams": {
"hours": "168"
}
},
"output": {
"type": "json",
"example": {
"count": 168,
"stats": {
"max_annualized_pct": 21.9,
"min_annualized_pct": -3.1,
"mean_annualized_pct": 10.2
},
"venue": "hyperliquid",
"points": [
{
"time": "2026-10-20T00:00:00.000Z",
"premium": -0.0002,
"rate_8h": 0.0001,
"rate_hourly": 0.0000125,
"annualized_pct": 10.95
}
],
"symbol": "BTC",
"interval_hours": 1
}
}
},
"schema": {
"type": "object",
"$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"
},
"pathParams": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"pattern": "^(?:[A-Za-z]{1,10}:)?[A-Za-z0-9]{1,20}$",
"description": "Hyperliquid perp ticker, case-insensitive; HIP-3 as dex:TICKER (xyz:TSLA)"
}
}
},
"queryParams": {
"type": "object",
"properties": {
"to": {
"type": "string",
"description": "End, YYYY-MM-DD or ISO 8601 UTC; default now"
},
"from": {
"type": "string",
"description": "Start, YYYY-MM-DD or ISO 8601 UTC (instead of hours)"
},
"hours": {
"type": "string",
"pattern": "^[0-9]{1,4}$",
"description": "Last N hours, 1-720 for 1h (default 168), 1-2160 for 4h/8h/1d"
},
"interval": {
"enum": [
"1h",
"4h",
"8h",
"1d"
],
"type": "string",
"description": "1h raw settlements (default) or UTC buckets"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"symbol",
"count",
"points"
],
"properties": {
"as_of": {
"type": "string"
},
"count": {
"type": "integer"
},
"stats": {
"type": "object"
},
"venue": {
"type": "string"
},
"points": {
"type": "array",
"items": {
"type": "object",
"properties": {
"time": {
"type": "string"
},
"premium": {
"type": [
"number",
"null"
]
},
"rate_8h": {
"type": "number"
},
"rate_hourly": {
"type": "number"
},
"annualized_pct": {
"type": "number"
}
}
}
},
"symbol": {
"type": "string"
},
"window": {
"type": "object"
},
"coverage": {
"type": "object"
},
"interval_hours": {
"type": "number"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 3 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/perps/BTC",
"tags": [
"funding-rate",
"open-interest",
"perpetuals",
"derivatives",
"hyperliquid"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Perpetual futures funding rate and open interest snapshot for one Hyperliquid perp (any listed coin, e.g. BTC or HIP-3 xyz:TSLA): current hourly funding, 8h and annualized rate, next_funding_time (next UTC hour) and time_to_next_seconds, open interest in coins and USD, 24h volume, mark and oracle price, premium, 24h change, and whether it ranks in the top 10 funding extremes. venues[] uses symbol / venue / funding_rate / open_interest_usd plus as_of. Unknown symbols: 404, no charge. JSON. Free sample at /samples/perps. $0.002 USDC per call on Base.",
"serviceName": "cryptofeed402 perps radar (funding + open interest)"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"symbol": "BTC"
},
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"as_of": "2026-10-19T20:57:31.782Z",
"venue": "hyperliquid",
"mid_px": 111655,
"symbol": "BTC",
"venues": [
{
"venue": "hyperliquid",
"symbol": "BTC",
"mark_px": 111650,
"funding_rate": -0.0000052,
"funding_apr_pct": -4.56,
"open_interest_usd": 3461000000,
"funding_interval_hours": 1
}
],
"funding": {
"rate_8h": -0.0000416,
"rate_hourly": -0.0000052,
"side_paying": "shorts",
"annualized_pct": -4.56,
"interval_hours": 1,
"next_funding_time": "2026-10-19T21:00:00.000Z",
"time_to_next_seconds": 148
},
"mark_px": 111650,
"premium": -0.00031,
"impact_px": {
"ask": 111660,
"bid": 111640
},
"oracle_px": 111700,
"disclaimer": "Automated data for AI agents. Not financial advice.",
"premium_pct": -0.031,
"generated_at": "2026-10-19T20:57:31.790Z",
"max_leverage": 40,
"open_interest": {
"usd": 3461000000,
"coins": 31000.5
},
"change_24h_pct": 1.2,
"volume_24h_usd": 2100000000,
"funding_extreme": {
"rank": 8,
"top10": [
"SAND",
"XMR"
],
"in_top10": true,
"ranked_universe": 67
}
}
}
},
"schema": {
"type": "object",
"$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"
},
"pathParams": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"pattern": "^(?:[A-Za-z]{1,10}:)?[A-Za-z0-9]{1,20}$",
"description": "Hyperliquid perp ticker, case-insensitive (BTC, ETH, SOL, HYPE, kPEPE, ...); HIP-3 as dex:TICKER (xyz:TSLA)"
}
}
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"symbol",
"as_of",
"venues",
"funding",
"open_interest"
],
"properties": {
"as_of": {
"type": "string",
"description": "ISO 8601 UTC time the upstream data was fetched"
},
"venue": {
"type": "string"
},
"symbol": {
"type": "string"
},
"venues": {
"type": "array",
"items": {
"type": "object",
"properties": {
"venue": {
"type": "string"
},
"symbol": {
"type": "string"
},
"funding_rate": {
"type": "number"
},
"open_interest_usd": {
"type": "number"
}
}
}
},
"funding": {
"type": "object",
"properties": {
"rate_8h": {
"type": "number"
},
"rate_hourly": {
"type": "number"
},
"side_paying": {
"type": "string"
},
"annualized_pct": {
"type": "number"
},
"interval_hours": {
"type": "number"
},
"next_funding_time": {
"type": "string"
},
"time_to_next_seconds": {
"type": "number"
}
}
},
"mark_px": {
"type": "number"
},
"premium": {
"type": "number"
},
"oracle_px": {
"type": "number"
},
"disclaimer": {
"type": "string"
},
"generated_at": {
"type": "string",
"description": "ISO 8601 UTC response time"
},
"open_interest": {
"type": "object",
"properties": {
"usd": {
"type": "number"
},
"coins": {
"type": "number"
}
}
},
"change_24h_pct": {
"type": "number"
},
"volume_24h_usd": {
"type": "number"
},
"funding_extreme": {
"type": "object",
"properties": {
"rank": {
"type": [
"integer",
"null"
]
},
"in_top10": {
"type": "boolean"
},
"ranked_universe": {
"type": "integer"
}
}
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 4 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/sentiment/BTC",
"tags": [
"sentiment",
"crypto-news",
"market-data",
"headlines",
"trading-agents"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Crypto news sentiment for one asset (BTC, ETH, SOL, HYPE, NEAR, AAVE and others; list at /sentiment): a -1..1 score with bearish/neutral/bullish label, counts of positive, negative and neutral headlines in the window, and up to 5 top headlines with source, link and stance. Headlines are labeled by a local LLM; the score is plain arithmetic. Refreshed about every 15 min. Unknown symbol 404, stale data 503, no charge. JSON. Free sample at /samples/sentiment. $0.002 USDC per call on Base.",
"serviceName": "cryptofeed402 crypto news sentiment"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"symbol": "BTC"
},
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"label": "bullish",
"model": "qwen2.5:14b",
"score": 0.25,
"counts": {
"neg": 5,
"neu": 8,
"pos": 11,
"n_headlines": 24
},
"method": "Each headline labeled pos/neg/neu by a local LLM; score is computed arithmetically from the labels.",
"symbol": "BTC",
"disclaimer": "News-headline sentiment, not a price prediction. Automated data for AI agents. Not financial advice.",
"age_seconds": 410,
"generated_at": "2026-10-20T00:30:00.000Z",
"top_headlines": [
{
"url": "https://example.com/story",
"title": "Example headline about Bitcoin ETF inflows",
"source": "example-news",
"stance": "pos"
}
],
"window_minutes": 360
}
}
},
"schema": {
"type": "object",
"$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"
},
"pathParams": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"pattern": "^[A-Za-z0-9]{1,20}$",
"description": "Ticker, case-insensitive; available symbols are listed free at /sentiment"
}
}
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"symbol",
"score",
"label",
"counts",
"generated_at",
"age_seconds"
],
"properties": {
"label": {
"enum": [
"bearish",
"neutral",
"bullish"
],
"type": "string"
},
"model": {
"type": "string"
},
"score": {
"type": "number",
"maximum": 1,
"minimum": -1
},
"counts": {
"type": "object",
"properties": {
"neg": {
"type": "integer"
},
"neu": {
"type": "integer"
},
"pos": {
"type": "integer"
},
"n_headlines": {
"type": "integer"
}
}
},
"method": {
"type": "string"
},
"symbol": {
"type": "string"
},
"disclaimer": {
"type": "string"
},
"age_seconds": {
"type": "integer"
},
"generated_at": {
"type": "string",
"description": "ISO 8601 UTC time the snapshot was computed"
},
"top_headlines": {
"type": "array",
"items": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"title": {
"type": "string"
},
"source": {
"type": "string"
},
"stance": {
"enum": [
"pos",
"neg",
"neu"
],
"type": "string"
}
}
},
"maxItems": 5
},
"window_minutes": {
"type": "integer"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 5 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "2500",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/funding/extreme",
"tags": [
"funding-rate",
"open-interest",
"perpetuals",
"derivatives",
"hyperliquid"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Perpetual futures funding rates and open interest (Hyperliquid), live: the 10 perps with the most extreme funding rate now (over $1M 24h volume), each with annualized funding APR and open interest in USD, plus the current funding rate for a BTC/ETH/SOL/HYPE/NEAR/AAVE watchlist. Use it to spot crowded longs or shorts, squeeze risk and funding-carry candidates. For one perp's full funding + OI snapshot use /perps/{symbol}. JSON. Free sample: /samples/funding. $0.0025 USDC per call on Base.",
"serviceName": "cryptofeed402 perp funding rates + open interest"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"as_of": "2026-10-18T03:00:00.000Z",
"venue": "hyperliquid",
"watchlist": [
{
"symbol": "BTC",
"funding_apr_pct": 2.72
},
{
"symbol": "ETH",
"funding_apr_pct": -0.88
}
],
"disclaimer": "Automated data for AI agents. Not financial advice.",
"most_extreme": [
{
"symbol": "PENGU",
"funding_apr_pct": -54.37,
"open_interest_usd": 9825646
},
{
"symbol": "ADA",
"funding_apr_pct": -48.4,
"open_interest_usd": 33350000
}
]
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"as_of",
"most_extreme"
],
"properties": {
"as_of": {
"type": "string",
"description": "ISO 8601 UTC timestamp"
},
"venue": {
"type": "string"
},
"watchlist": {
"type": "array",
"items": {
"type": "object",
"properties": {
"symbol": {
"type": "string"
},
"funding_apr_pct": {
"type": [
"number",
"null"
]
}
}
}
},
"disclaimer": {
"type": "string"
},
"most_extreme": {
"type": "array",
"items": {
"type": "object",
"properties": {
"symbol": {
"type": "string"
},
"funding_apr_pct": {
"type": "number"
},
"open_interest_usd": {
"type": "number"
}
}
},
"maxItems": 10
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 6 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "2500",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/price/BTC",
"tags": [
"crypto",
"market-data",
"perps",
"hyperliquid",
"trading-agents"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Live snapshot for any listed Hyperliquid perp (BTC, ETH, SOL, kPEPE, ... and HIP-3 like xyz:TSLA): perp mark price, hourly funding rate and annualized funding APR, open interest in coins and USD, 24h volume and premium, plus OKX spot last price and 24h change when listed. Use it for current price and perp positioning of one asset before sizing a trade. Unknown symbol 404, no charge. JSON. Free sample at /samples/price. $0.0025 USDC per call on Base.",
"serviceName": "cryptofeed402"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"symbol": "BTC"
},
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"perp": {
"venue": "hyperliquid",
"mark_px": 81390,
"premium": -0.0002,
"funding_hourly": 0.0000031,
"volume_24h_usd": 2150000000,
"funding_apr_pct": 2.72,
"open_interest_usd": 3377685000,
"open_interest_coins": 41500
},
"spot": {
"last": 81388,
"venue": "okx",
"open_24h": 81495,
"change_24h_pct": -0.13
},
"as_of": "2026-10-18T03:00:00.000Z",
"symbol": "BTC",
"disclaimer": "Automated data for AI agents. Not financial advice."
}
}
},
"schema": {
"type": "object",
"$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"
},
"pathParams": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"pattern": "^(?:[A-Za-z]{1,10}:)?[A-Za-z0-9]{1,20}$",
"description": "Hyperliquid perp ticker, case-insensitive (BTC, ETH, kPEPE, ...); HIP-3 as dex:TICKER (xyz:TSLA)"
}
}
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"symbol",
"as_of",
"perp"
],
"properties": {
"perp": {
"type": "object",
"properties": {
"venue": {
"type": "string"
},
"mark_px": {
"type": "number"
},
"premium": {
"type": "number"
},
"funding_hourly": {
"type": "number"
},
"volume_24h_usd": {
"type": "number"
},
"funding_apr_pct": {
"type": "number"
},
"open_interest_usd": {
"type": "number"
},
"open_interest_coins": {
"type": "number"
}
}
},
"spot": {
"type": [
"object",
"null"
],
"properties": {
"last": {
"type": "number"
},
"venue": {
"type": "string"
},
"open_24h": {
"type": "number"
},
"change_24h_pct": {
"type": "number"
}
}
},
"as_of": {
"type": "string",
"description": "ISO 8601 UTC timestamp"
},
"symbol": {
"type": "string"
},
"disclaimer": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 7 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "15000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/brief/latest",
"tags": [
"crypto",
"market-brief",
"funding-rates",
"sentiment",
"trading-agents"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "LLM-written crypto market brief, published twice daily: analysis, not just raw numbers. Plain-English headline and bottom line, sentiment and Fear & Greed, funding rates and open interest (OKX + Hyperliquid) with crowded-trade flags, extreme funding, watchlist prices and 24h/7d moves, top news, macro economic calendar and token unlocks for the next 7 days. JSON plus markdown. Free preview at /brief/sample. $0.015 USDC per call on Base.",
"serviceName": "cryptofeed402"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"brief": {
"date": "2026-10-17",
"coins": {
"BTC": {
"price": 81388,
"chg_7d_pct": -1.94,
"okx_oi_usd": 2499707421,
"chg_24h_pct": -0.13,
"okx_funding_8h": 0.0000644
}
},
"labels": {
"BTC": {
"funding": "neutral",
"trend_7d": "slightly down",
"trend_24h": "flat"
}
},
"market": {
"breadth_7d": "5 of 6 watchlist coins down",
"funding_overall": "neutral",
"sentiment_index": "neutral",
"extreme_funding_flags": [
"PENGU shorts crowded"
]
},
"bottom_line": "Neutral tape; crowded shorts in several alts raise squeeze risk. Watch US housing data Tuesday.",
"extreme_funding_hl": [
{
"coin": "PENGU",
"oi_usd": 9825646,
"annualized_pct": -54.37
}
]
},
"source": "local-model",
"headline": "Market sentiment is neutral, with most watchlist coins lower on the week. Extreme negative funding on several Hyperliquid alts.",
"markdown": "# Crypto Daily Digest — 2026-10-17\n## Top stories\n...\n## Market snapshot\n...\n## Crowded trades / funding\n...\n## Upcoming events (next 7 days)\n...",
"disclaimer": "Automated data for AI agents. Not financial advice.",
"generated_at": "2026-10-18T00:45:18.000Z"
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"generated_at",
"brief",
"markdown"
],
"properties": {
"brief": {
"type": "object",
"properties": {
"date": {
"type": "string"
},
"coins": {
"type": "object",
"description": "per-coin price, chg_24h_pct, chg_7d_pct, okx_funding_8h, okx_oi_usd"
},
"labels": {
"type": "object",
"description": "per-coin trend_24h / trend_7d / funding labels"
},
"market": {
"type": "object",
"description": "sentiment_index, breadth_7d, funding_overall, extreme_funding_flags"
},
"bottom_line": {
"type": "string"
},
"extreme_funding_hl": {
"type": "array",
"items": {
"type": "object",
"properties": {
"coin": {
"type": "string"
},
"oi_usd": {
"type": "number"
},
"annualized_pct": {
"type": "number"
}
}
}
}
}
},
"source": {
"type": "string"
},
"headline": {
"type": "string"
},
"markdown": {
"type": "string",
"description": "full brief: top stories, market snapshot + Fear & Greed, funding/OI table (OKX + Hyperliquid), extreme funding, macro calendar, token unlocks"
},
"disclaimer": {
"type": "string"
},
"generated_at": {
"type": "string",
"description": "ISO 8601 UTC timestamp"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 8 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/history",
"tags": [
"crypto",
"market-brief",
"historical-data",
"funding-rates",
"backtesting"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Archive of past cryptofeed402 twice-daily LLM-written market briefs for a date range (from/to as YYYY-MM-DD, up to 366 days): sentiment, funding, open interest, prices, news and macro calendar per edition. Use it for backtesting, building historical context or reviewing how funding and sentiment evolved. JSON. Free sample at /samples/history. $0.005 USDC per day in range, capped at $0.5 per call, on Base.",
"serviceName": "cryptofeed402"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"to": "2026-10-17",
"from": "2026-10-16"
}
},
"output": {
"type": "json",
"example": {
"to": "2026-10-17",
"from": "2026-10-16",
"count": 1,
"briefs": [
{
"brief": {
"date": "2026-10-17",
"coins": {
"BTC": {
"price": 81388,
"chg_7d_pct": -1.94,
"okx_oi_usd": 2499707421,
"chg_24h_pct": -0.13,
"okx_funding_8h": 0.0000644
}
},
"labels": {
"BTC": {
"funding": "neutral",
"trend_7d": "slightly down",
"trend_24h": "flat"
}
},
"market": {
"breadth_7d": "5 of 6 watchlist coins down",
"funding_overall": "neutral",
"sentiment_index": "neutral",
"extreme_funding_flags": [
"PENGU shorts crowded"
]
},
"bottom_line": "Neutral tape; crowded shorts in several alts raise squeeze risk. Watch US housing data Tuesday.",
"extreme_funding_hl": [
{
"coin": "PENGU",
"oi_usd": 9825646,
"annualized_pct": -54.37
}
]
},
"source": "local-model",
"headline": "Market sentiment is neutral, with most watchlist coins lower on the week. Extreme negative funding on several Hyperliquid alts.",
"markdown": "# Crypto Daily Digest — 2026-10-17\n## Top stories\n...\n## Market snapshot\n...\n## Crowded trades / funding\n...\n## Upcoming events (next 7 days)\n...",
"disclaimer": "Automated data for AI agents. Not financial advice.",
"generated_at": "2026-10-18T00:45:18.000Z"
}
]
}
}
},
"schema": {
"type": "object",
"$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": [
"from"
],
"properties": {
"to": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "End date (UTC), YYYY-MM-DD, inclusive; defaults to from"
},
"from": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "Start date (UTC), YYYY-MM-DD"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"from",
"to",
"count",
"briefs"
],
"properties": {
"to": {
"type": "string"
},
"from": {
"type": "string"
},
"count": {
"type": "integer"
},
"briefs": {
"type": "array",
"items": {
"type": "object",
"required": [
"generated_at",
"brief",
"markdown"
],
"properties": {
"brief": {
"type": "object",
"properties": {
"date": {
"type": "string"
},
"coins": {
"type": "object",
"description": "per-coin price, chg_24h_pct, chg_7d_pct, okx_funding_8h, okx_oi_usd"
},
"labels": {
"type": "object",
"description": "per-coin trend_24h / trend_7d / funding labels"
},
"market": {
"type": "object",
"description": "sentiment_index, breadth_7d, funding_overall, extreme_funding_flags"
},
"bottom_line": {
"type": "string"
},
"extreme_funding_hl": {
"type": "array",
"items": {
"type": "object",
"properties": {
"coin": {
"type": "string"
},
"oi_usd": {
"type": "number"
},
"annualized_pct": {
"type": "number"
}
}
}
}
}
},
"source": {
"type": "string"
},
"headline": {
"type": "string"
},
"markdown": {
"type": "string",
"description": "full brief: top stories, market snapshot + Fear & Greed, funding/OI table (OKX + Hyperliquid), extreme funding, macro calendar, token unlocks"
},
"disclaimer": {
"type": "string"
},
"generated_at": {
"type": "string",
"description": "ISO 8601 UTC timestamp"
}
}
}
},
"disclaimer": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 9 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/audit/agent-ready",
"tags": [
"agent-readiness",
"x402",
"llms-txt",
"mcp",
"developer-tools"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Agent-readiness audit for a public website or x402 API: checks llms.txt, robots.txt AI-crawler rules, sitemap, OpenAPI, /.well-known/x402, agent card, an MCP initialize probe, a live unpaid 402 challenge (accepts, network, payTo, Bazaar metadata) and listings on Roundhouse, 402 Index and x402 Doctor. Returns a 0-100 score, pass/warn/fail per check with evidence and a concrete fix. Deterministic, no LLM. Free example at /audit/sample. $0.05 USDC per call on Base.",
"serviceName": "cryptofeed402 agent-readiness audit"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://cryptofeed402.site"
}
},
"output": {
"type": "json",
"example": {
"grade": "B",
"score": 72,
"checks": [
{
"id": "llms_txt",
"fix": null,
"name": "llms.txt",
"points": 14,
"status": "pass",
"weight": 14,
"evidence": {
"status": 200
}
}
],
"counts": {
"fail": 2,
"pass": 8,
"warn": 2
},
"target": {
"host": "example.com",
"origin": "https://example.com"
},
"summary": "example.com scores 72/100 (B): 8 pass, 2 warn, 2 fail. Biggest gaps: ...",
"audited_at": "2026-10-19T21:00:00.000Z",
"audit_version": "1.0.0"
}
}
},
"schema": {
"type": "object",
"$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": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "Site to audit: a domain or http(s) URL; public hosts on ports 80/443 only"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"score",
"checks",
"summary"
],
"properties": {
"grade": {
"type": "string"
},
"score": {
"type": "integer",
"maximum": 100,
"minimum": 0
},
"checks": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"fix": {
"type": [
"string",
"null"
]
},
"name": {
"type": "string"
},
"points": {
"type": "number"
},
"status": {
"enum": [
"pass",
"warn",
"fail"
],
"type": "string"
},
"weight": {
"type": "number"
},
"evidence": {
"type": "object"
}
}
}
},
"counts": {
"type": "object"
},
"summary": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 10 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/attention",
"tags": [
"attention",
"mentions",
"crypto-news",
"market-data",
"trading-agents"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Per-coin headline mention volume vs that coin's 7-day average from the latest 12h Legion Go tagger run. Ranked table (symbol, mentions_12h, avg_7d, ratio, z, rank). Volume signal, not tone (use /sentiment for bullish/bearish). No/stale data 503 before any 402, no charge. JSON. Free sample at /samples/attention. $0.003 USDC per call on Base.",
"serviceName": "cryptofeed402 attention / mention volume"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"as_of": "2026-10-26T12:33:12.000Z",
"coins": [
{
"z": 2.23,
"rank": 1,
"ratio": 1.47,
"avg_7d": 17.71,
"symbol": "BTC",
"mentions_12h": 26
}
],
"method": "tags.assets mention counts vs mean of last 14 tagger runs",
"window": {
"current_run": "headlines-20261026-0530.json",
"baseline_runs": 14,
"current_hours": 12,
"baseline_days_approx": 7
},
"timezone": "America/Los_Angeles",
"disclaimer": "Automated data for AI agents. Not financial advice.",
"age_seconds": 410,
"generated_at": "2026-10-26T19:10:00.000Z",
"n_headlines_current": 60
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"as_of",
"generated_at",
"coins"
],
"properties": {
"as_of": {
"type": "string"
},
"coins": {
"type": "array",
"items": {
"type": "object"
}
},
"method": {
"type": "string"
},
"window": {
"type": "object"
},
"timezone": {
"type": "string"
},
"disclaimer": {
"type": "string"
},
"age_seconds": {
"type": "integer"
},
"generated_at": {
"type": "string"
},
"n_headlines_current": {
"type": "integer"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 11 of 11
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
"amount": "25000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://cryptofeed402.site/narratives/weekly",
"tags": [
"narratives",
"weekly",
"crypto-news",
"market-summary",
"trading-agents"
],
"iconUrl": "https://cryptofeed402.site/icon.png",
"mimeType": "application/json",
"description": "Weekly narratives pack: top 5-8 multi-outlet story clusters from seven days of headline-tagger events, each with title, short blurb, outlet counts and links. Published about weekly (Sunday PT). No/stale data 503 before any 402, no charge. JSON. Free sample at /samples/narratives-weekly. $0.025 USDC per call on Base.",
"serviceName": "cryptofeed402 weekly narratives"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"week_id": "2026-W43",
"timezone": "America/Los_Angeles",
"disclaimer": "Automated data for AI agents. Not financial advice.",
"narratives": [
{
"rank": 1,
"asset": "BTC",
"blurb": "Example weekly blurb.",
"links": [
{
"url": "https://example.com/etf",
"outlets": 4,
"headline": "Example ETF story"
}
],
"title": "Bitcoin ETF flows stay in the headlines",
"cluster_id": "etf_flow|BTC",
"event_count": 14,
"outlets_max": 4,
"corroboration": "multi"
}
],
"window_end": "2026-10-26T12:33:00.000Z",
"age_seconds": 3600,
"source_runs": 14,
"generated_at": "2026-10-27T03:30:00.000Z",
"window_start": "2026-10-20T00:30:00.000Z"
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"week_id",
"generated_at",
"narratives"
],
"properties": {
"week_id": {
"type": "string"
},
"timezone": {
"type": "string"
},
"disclaimer": {
"type": "string"
},
"narratives": {
"type": "array",
"items": {
"type": "object"
}
},
"window_end": {
"type": "string"
},
"age_seconds": {
"type": "integer"
},
"source_runs": {
"type": "integer"
},
"generated_at": {
"type": "string"
},
"window_start": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Can I trust it score from our own monitoring
score from our own monitoring
88/100 Solid
#14 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
- $0.002 to $0.05 p17 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), 263ms response p95, x402 compliance 14 of 14, $0.002 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
Hyperliquid funding rates, open interest and perps market data for AI agents: extreme funding ranks, funding history, /perps and /outlook pre-trade preflight, news sentiment, twice-daily brief, and agent-readiness audit. Pay per call in USDC on Base via x402 · no API key. No charge on errors; Ed25519-signed receipts on paid 200s. MCP: https://cryptofeed402.site/mcp
cryptofeed402 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
- 263ms
- avg response
- 263ms
- 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)
- $0.002
- price (max)
- $0.05
- category percentile (min)
- p17 in Finance
- category percentile (max)
- p57 in Finance
- endpoints / prices
- 11 / 8
- model
- tiered
- 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
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
- assessment volume 30d
- $0.00
- exact assessment volume 30d (USD)
- 0
- assessment recorded at (UTC)
- 2026-10-27T11:33:55.262Z
- 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 | 163ms | 11 | |
| Online | 402 | 200ms | 11 | |
| Online | 402 | 223ms | 11 | |
| Online | 402 | 209ms | 11 | |
| Online | 402 | 269ms | 11 | |
| Online | 402 | 187ms | 11 | |
| Online | 402 | 273ms | 11 | |
| Online | 402 | 216ms | 11 | |
| Online | 402 | 263ms | 11 |
Changes0 in 30d
No changes recorded in the last 30 days.
Over time
On-chain volume daily snapshots, USD 30d: $0.00, peak $0.08 on 10-23
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 236ms, avg 236ms, max 236ms
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: $0.14, peak $0.08 on 10-23. 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 |
|---|---|---|---|---|---|---|---|---|
| 2026-10-18 | $0.03 | 2 | 5 | no data | no data | no data | no data | no data |
| 2026-10-19 | $0.02 | 2 | 3 | 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 | $0.08 | 2 | 9 | 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* | $0.01 | 1 | 2 | 100% | 236.17ms | 14/14 | p17 | 5/6 |
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.
Verify this service ($0.25)Embed a badge
HTML
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Markdown
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Delisting
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