payment-ready 2026-08-30, probe currently failing
Live Hyperliquid quant data (funding rates, OHLCV, regime classification, correlation matrices), raw Polymarket odds, proprietary weather-forecast calibration and oil geopolitical event-study feeds, quant methodology packs, and x402 endpoint trust scoring. 57 endpoints, free trial tier on core quant data, USDC on Base.
Pay from $0.001 to $0.01 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
measured since 2026-07-10 (start of our harvest window) · $7.18 all-time · settled via coinbase
VERDICT
ranking generation 3mixed 74/100 #76 of 84 in Finance by measured score
What the score read on this service: status offline, 87.1% uptime 30d, 447ms response p95, x402 compliance 14 of 14, $0.001 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.
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 84 listings, this one among them. That set is wider than the 84 the position above is counted against, 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.
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.
ALTERNATIVES IN FINANCE
Other Finance services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).
| SERVICE | BAND | SCORE | UPTIME 30D | VOL 30D |
|---|---|---|---|---|
| Bitrefill | strong | 96 | 100% | $555.55 |
| Stock Trends Market Intelligence | solid | 91 | 99.9% | $70.23 |
| Losbeto — Cross-Asset Market Intelligence | solid | 91 | 99.1% | $76.51 |
| x402stock | solid | 90 | 100% | $15.80 |
| Central Command | solid | 89 | 100% | $0 |
5 of 83 other ranked services in Finance · see the whole category
ASSESSMENT
updated 51m agoThe parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.
reliability 87.1%
- uptime 24h
- 0%
- uptime 7d
- 0%
- uptime 30d
- 87.1%
- uptime 90d
- 87.1%
- response p95
- 447ms
- avg response
- 243ms
- total checks
- 862
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (14/14), stale (probe failing)
14 of 14 x402 conformance checks pass. Full checklist below.
price $0.001 to $0.01 (p9 in Finance)
- price (min)
- $0.001
- price (max)
- $0.01
- category percentile (min)
- p9 in Finance
- category percentile (max)
- p25 in Finance
- endpoints / prices
- 10 / 4
- model
- tiered
- stability
- 0%
risk clean
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
- 59d
- registrar
- Cloudflare, Inc.
- hosting
- custom
- domain created
- 2026-07-10
Identity facts, not a risk score.
traction $2.728 30d · 1 buyers · top buyer 100%
- volume 30d
- $2.728
- buyers 30d
- 1
- settlements 30d
- 76
- measured since
- 2026-07-10 (start of our harvest window)
- last settlement
- 2026-08-24
- top buyer share
- 100% of 30d volume
- trend 7d vs 30d
- 0.00x the 30d daily rate
- networks
- eip155:8453
- volume all-time
- $7.18
- settlements all-time
- 180
- median settlement 30d
- $0.02
- max settlement 30d
- $0.25
- settled via
- coinbase ($2.73, 76 tx)
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is a concentration signal, not part of the ranking score.
CHANGES
1 in 30dPayout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.
changes price changed 18d ago (1 in 30d)
price changed · 18d ago
GET /api/v1/methodology/bundle · eip155:8453 · USDC: 15000000 → 10000
GET /api/v1/quant/oil-geo-premium · eip155:8453 · USDC: 50000 → 10000
GET /api/v1/quant/weather-calibration · eip155:8453 · USDC: 50000 → 10000
Amounts are on-wire atomic units in the named asset.
WHAT IT DOES
ai-derivedNo AI synthesis has been produced for this service yet.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /api/v1/methodology/bundle | Complete 7-pack quant methodology bundle — backtesting, kill battery, risk, regime, execution, market analysis, agent orchestration. $15.00 (save $6). | $0.01 | Base | USDC | header |
| GET | /api/v1/pm/market-odds | Raw Polymarket market odds/orderbook snapshot by slug: current price, best bid/ask, volume, resolution date. Data only — no edge computation or trade recommendation. | $0.001 | Base | USDC | header |
| GET | /api/v1/quant/correlation-matrix | Rolling cross-asset correlation matrix across BTC/ETH/SOL (and optional extra symbols), computed from recent candles. | $0.001 | Base | USDC | header |
| GET | /api/v1/quant/funding-snapshot | Latest Hyperliquid funding-rate snapshot: BTC/ETH/SOL hourly funding, annualized %, mark price, OI, 24h volume. Fresh hourly from our collector. | $0.001 | Base | USDC | header |
| GET | /api/v1/quant/ohlcv | Historical OHLCV candles for a Hyperliquid perp. Query params: symbol (BTC/ETH/SOL/...), interval (1m/5m/15m/1h/4h/1d), limit (max 500). | $0.001 | Base | USDC | header |
| GET | /api/v1/quant/oil-geo-premium | Oil geopolitical event-study model: escalation/de-escalation classification with historical hit rates from a 27-event, multi-year dataset. Cites sample size explicitly — small-n segments are disclosed, not hidden. Research data, not a trade recommendation. | $0.01 | Base | USDC | header |
| GET | /api/v1/quant/pulse | Bundle: funding snapshot + regime + correlation matrix + latest OHLCV summary for BTC/ETH/SOL in one call. Discounted vs buying separately ($0.005+$0.01+$0.01+$0.01=$0.035 -> $0.03). | $0.005 | Base | USDC | header |
| GET | /api/v1/quant/regime | Live regime classification (trending/ranging/volatile) for a symbol, computed from recent candles. Classifier output — not a trade signal. | $0.001 | Base | USDC | header |
| GET | /api/v1/quant/weather-calibration | Per-station weather forecast error calibration: model bias, sigma, sample size, last-settled date. Built from Wintergreen's live collector + settlement history across 17 stations. Query param 'station' (e.g. KLGA, KLAX). Calibration data, not a trade recommendation. | $0.01 | Base | USDC | header |
| GET | /api/v1/trust/check | Single trust score lookup for an x402 endpoint. Query param 'url'. | $0.002 | Base | USDC | header |
10 endpoints
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /api/v1/methodology/bundle returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
// request
curl -i 'https://x402.wintergreen.uk/api/v1/methodology/bundle'
// 402 response (captured by monitor) · 10 payloads · click to expand
[
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAe9834d71F1Bd989A0dc17593451af823E31CeeD",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://x402.wintergreen.uk/api/v1/quant/pulse",
"description": "Bundle: funding snapshot + regime + correlation matrix + latest OHLCV summary for BTC/ETH/SOL in one call. Discounted vs buying separately ($0.005+$0.01+$0.01+$0.01=$0.035 -> $0.03).",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
}
],
"message": "Combined quant pulse — funding, regime, correlation, OHLCV summary. One settlement, discounted vs separate calls.",
"extensions": {
"bazaar": {
"bazaar": {
"info": {
"input": {
"type": "http"
},
"output": {
"type": "json",
"example": {}
}
},
"schema": {
"type": "object",
"$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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"regime": {
"type": "object"
},
"funding": {
"type": "object"
},
"correlation": {
"type": "object"
},
"ohlcv_summary": {
"type": "object"
}
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAe9834d71F1Bd989A0dc17593451af823E31CeeD",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://x402.wintergreen.uk/api/v1/trust/check",
"description": "Single trust score lookup for an x402 endpoint. Query param 'url'.",
"maxAmountRequired": "2000",
"maxTimeoutSeconds": 300
}
],
"message": "Trust score lookup — check if an x402 endpoint is trustworthy before spending.",
"extensions": {
"bazaar": {
"bazaar": {
"info": {
"input": {
"type": "http"
},
"output": {
"type": "json",
"example": {
"url": "https://blockrun.ai/api/v1/models"
}
}
},
"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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"assessment": {
"type": "string"
},
"trust_score": {
"type": "integer"
}
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAe9834d71F1Bd989A0dc17593451af823E31CeeD",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://x402.wintergreen.uk/api/v1/methodology/bundle",
"description": "Complete 7-pack quant methodology bundle — backtesting, kill battery, risk, regime, execution, market analysis, agent orchestration. $15.00 (save $6).",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300
}
],
"message": "Complete quant methodology bundle — all 7 packs: backtest validation, kill rules, Kelly sizing, regime filters. $15.00.",
"extensions": {
"bazaar": {
"bazaar": {
"info": {
"input": {
"type": "http"
},
"output": {
"type": "json",
"example": {}
}
},
"schema": {
"type": "object",
"$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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"packs": {
"type": "array"
},
"bundle_id": {
"type": "string"
},
"total_packs": {
"type": "integer"
}
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAe9834d71F1Bd989A0dc17593451af823E31CeeD",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://x402.wintergreen.uk/api/v1/quant/ohlcv",
"description": "Historical OHLCV candles for a Hyperliquid perp. Query params: symbol (BTC/ETH/SOL/...), interval (1m/5m/15m/1h/4h/1d), limit (max 500).",
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 300
}
],
"message": "Historical OHLCV candle data. Source: Hyperliquid L1 candleSnapshot.",
"extensions": {
"bazaar": {
"bazaar": {
"info": {
"input": {
"type": "http"
},
"output": {
"type": "json",
"example": {
"limit": 100,
"symbol": "BTC",
"interval": "1h"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"limit": {
"type": "integer"
},
"symbol": {
"type": "string"
},
"interval": {
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "array"
},
"content_hash": {
"type": "string"
}
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAe9834d71F1Bd989A0dc17593451af823E31CeeD",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://x402.wintergreen.uk/api/v1/quant/correlation-matrix",
"description": "Rolling cross-asset correlation matrix across BTC/ETH/SOL (and optional extra symbols), computed from recent candles.",
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 300
}
],
"message": "Cross-asset correlation matrix, 1h rolling window. Source: Hyperliquid L1 candles.",
"extensions": {
"bazaar": {
"bazaar": {
"info": {
"input": {
"type": "http"
},
"output": {
"type": "json",
"example": {
"symbols": "BTC,ETH,SOL"
}
}
},
"schema": {
"type": "object",
"$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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"symbols": {
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"matrix": {
"type": "object"
},
"content_hash": {
"type": "string"
}
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAe9834d71F1Bd989A0dc17593451af823E31CeeD",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://x402.wintergreen.uk/api/v1/quant/oil-geo-premium",
"description": "Oil geopolitical event-study model: escalation/de-escalation classification with historical hit rates from a 27-event, multi-year dataset. Cites sample size explicitly — small-n segments are disclosed, not hidden. Research data, not a trade recommendation.",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300
}
],
"message": "Oil geopolitical premium event-study — escalation/de-escalation hit rates with disclosed sample sizes.",
"extensions": {
"bazaar": {
"bazaar": {
"info": {
"input": {
"type": "http"
},
"output": {
"type": "json",
"example": {}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"segments": {
"type": "array"
},
"methodology": {
"type": "string"
},
"total_events": {
"type": "integer"
}
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAe9834d71F1Bd989A0dc17593451af823E31CeeD",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://x402.wintergreen.uk/api/v1/quant/regime",
"description": "Live regime classification (trending/ranging/volatile) for a symbol, computed from recent candles. Classifier output — not a trade signal.",
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 300
}
],
"message": "Regime classification: trending / ranging / volatile, with confidence and method. Classifier output only, not a trading signal.",
"extensions": {
"bazaar": {
"bazaar": {
"info": {
"input": {
"type": "http"
},
"output": {
"type": "json",
"example": {
"symbol": "BTC"
}
}
},
"schema": {
"type": "object",
"$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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"symbol": {
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"method": {
"type": "string"
},
"regime": {
"type": "string"
},
"since_ts": {
"type": "string"
},
"confidence": {
"type": "number"
}
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAe9834d71F1Bd989A0dc17593451af823E31CeeD",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://x402.wintergreen.uk/api/v1/pm/market-odds",
"description": "Raw Polymarket market odds/orderbook snapshot by slug: current price, best bid/ask, volume, resolution date. Data only — no edge computation or trade recommendation.",
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 300
}
],
"message": "Polymarket raw odds snapshot. Source: Gamma API. Data only, no signal.",
"extensions": {
"bazaar": {
"bazaar": {
"info": {
"input": {
"type": "http"
},
"output": {
"type": "json",
"example": {
"slug": "will-btc-hit-100k-by-2026"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"slug"
],
"properties": {
"slug": {
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"slug": {
"type": "string"
},
"price": {
"type": "number"
},
"volume": {
"type": "number"
},
"best_ask": {
"type": "number"
},
"best_bid": {
"type": "number"
},
"end_date": {
"type": "string"
}
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAe9834d71F1Bd989A0dc17593451af823E31CeeD",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://x402.wintergreen.uk/api/v1/quant/funding-snapshot",
"description": "Latest Hyperliquid funding-rate snapshot: BTC/ETH/SOL hourly funding, annualized %, mark price, OI, 24h volume. Fresh hourly from our collector.",
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 300
}
],
"message": "Fresh Hyperliquid funding-rate snapshot (BTC/ETH/SOL) — perishable market data, updated hourly.",
"extensions": {
"bazaar": {
"bazaar": {
"info": {
"input": {
"type": "http"
},
"output": {
"type": "json",
"example": {
"symbol": "BTC"
}
}
},
"schema": {
"type": "object",
"$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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"symbol": {
"enum": [
"BTC",
"ETH",
"SOL"
],
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"coins": {
"type": "object"
},
"fetched_at": {
"type": "string"
},
"staleness_seconds": {
"type": "integer"
}
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 2
},
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xAe9834d71F1Bd989A0dc17593451af823E31CeeD",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"resource": "https://x402.wintergreen.uk/api/v1/quant/weather-calibration",
"description": "Per-station weather forecast error calibration: model bias, sigma, sample size, last-settled date. Built from Wintergreen's live collector + settlement history across 17 stations. Query param 'station' (e.g. KLGA, KLAX). Calibration data, not a trade recommendation.",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300
}
],
"message": "Weather forecast calibration feed — proprietary, built from months of collector + settlement history. 17 stations tracked.",
"extensions": {
"bazaar": {
"bazaar": {
"info": {
"input": {
"type": "http"
},
"output": {
"type": "json",
"example": {
"station": "KLGA"
}
}
},
"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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"station": {
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"seasons": {
"type": "object"
},
"station": {
"type": "string"
},
"sample_n": {
"type": "integer"
},
"default_bias": {
"type": "number"
},
"lead_buckets": {
"type": "object"
},
"default_sigma": {
"type": "number"
}
}
}
}
}
}
}
},
"discoverable": true
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/wintergreen-x402-content-broker/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
UPTIME
30d UPTIME 87.1%
RESPONSE TIME
AVG RESP 243ms
PRICE (captured 402, USD)
Median across 10 endpoints. Use the selector to isolate one.
SUB-SCORES (uptime + x402 compliance)
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
PILLARS OVER TIME (measured)
price percentile in Finance
site signals present (of 6)
Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.
VOLUME (on-chain settlement, USD)
DISTINCT BUYERS
COMPLIANCE
14/14 checks pass · grade A · stale (probe failing)last 402 captured 2026-08-25 · last up 2026-08-30
- 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
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
○ DOWN 146ms bad_status: unexpected HTTP 502
○ DOWN 181ms bad_status: unexpected HTTP 502
○ DOWN 123ms bad_status: unexpected HTTP 502
○ DOWN 119ms bad_status: unexpected HTTP 502
○ DOWN 143ms bad_status: unexpected HTTP 502
○ DOWN 115ms bad_status: unexpected HTTP 502
○ DOWN 116ms bad_status: unexpected HTTP 502
○ DOWN 231ms bad_status: unexpected HTTP 502
○ DOWN 118ms bad_status: unexpected HTTP 502
○ DOWN 230ms bad_status: unexpected HTTP 502
○ DOWN 124ms bad_status: unexpected HTTP 502
○ DOWN 121ms bad_status: unexpected HTTP 502
○ DOWN 145ms bad_status: unexpected HTTP 502
○ DOWN 224ms bad_status: unexpected HTTP 502
○ DOWN 218ms bad_status: unexpected HTTP 502
○ DOWN 116ms bad_status: unexpected HTTP 502
○ DOWN 119ms bad_status: unexpected HTTP 502
○ DOWN 193ms bad_status: unexpected HTTP 502
EMBED THIS BADGE
// HTML
<a href="https://x402-list.com/services/wintergreen-x402-content-broker?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/wintergreen-x402-content-broker.svg" alt="Wintergreen x402 Content Broker listed on x402-list" height="28"> </a>
// Markdown
[](https://x402-list.com/services/wintergreen-x402-content-broker?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/wintergreen-x402-content-broker?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/wintergreen-x402-content-broker.svg?data=uptime" alt="Wintergreen x402 Content Broker uptime on x402-list" height="28"> </a>