Crypto Market Pulse
Crypto market overview in one call: Fear & Greed Index, BTC, ETH and SOL price, 24h change and funding, the highest and lowest funding rates, top gainers and losers, and Hyperliquid open interest.
TradingLiveeip155:8453Exactvia cdp
Crypto-marketFear-greedFunding-rateMarket-overviewCrypto
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far.
$4.04
Verified settled volume
355 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0030
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-21 02:08Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xBbfCE2D320dE6aB328Ba93A771c531ebFC9cE704The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"docs": "https://api.tollkit.dev/llms.txt",
"error": "payment_required",
"method": "POST",
"message": "Call /chain/pulse with POST and a JSON body, paying the quote in the PAYMENT-REQUIRED header. A GET only returns the price."
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.003USDC≈ $0.003 USD
on Base · exact scheme
Pay 0.003 USDC on Base to 0xBbfC…cE704. The signed payment is good for 5 minutes.
- Paid to
- 0xBbfC…cE704
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 3000 smallest units
3000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- HBasGE…i3gYf
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xBbfCE2D320dE6aB328Ba93A771c531ebFC9cE704",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"payTo": "HBasGEGD1szEkNCWckRoZg2vZGhzt7yLSixLgSHi3gYf",
"amount": "3000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"notes": [
"Funding, movers and up/down counts are Hyperliquid perpetuals with at least $1M open interest. Hyperliquid pays funding every hour. funding_hourly_pct is the current hourly rate; when it is positive, longs pay shorts. funding_annualized_pct is that rate × 24 × 365, for comparison only."
],
"majors": [
{
"coin": "BTC",
"chainlink_usd": 81637.57,
"perp_mark_usd": 81692,
"change_24h_pct": -1.4,
"open_interest_usd": 3265903794,
"funding_hourly_pct": 0.00125,
"chainlink_updated_at": "2026-10-20T06:23:59.000Z"
},
{
"coin": "ETH",
"chainlink_usd": 2395.39,
"perp_mark_usd": 2395.5,
"change_24h_pct": -1.57,
"open_interest_usd": 2582030511,
"funding_hourly_pct": 0.000771,
"chainlink_updated_at": "2026-10-20T06:37:23.000Z"
}
],
"read_at": "2026-10-20T07:22:33.282Z",
"sources": [
"Hyperliquid info API (api.hyperliquid.xyz)",
"Crypto Fear & Greed Index by Alternative.me",
"Chainlink Data Feeds on Ethereum"
],
"fear_greed": {
"date": "2026-10-20",
"scale": "0 = extreme fear, 100 = extreme greed. Updated daily.",
"value": 55,
"source": "Crypto Fear & Greed Index by Alternative.me",
"week_ago": {
"date": "2026-10-13",
"value": 57,
"classification": "Greed"
},
"yesterday": {
"date": "2026-10-19",
"value": 59,
"classification": "Greed"
},
"source_url": "https://alternative.me/crypto/fear-and-greed-index/",
"classification": "Greed",
"next_update_in_seconds": 59847
},
"funding_lowest": [
{
"coin": "SAND",
"mark_price": 0.057043,
"change_24h_pct": -4.58,
"open_interest_usd": 1743326,
"funding_hourly_pct": -0.019875,
"funding_annualized_pct": -174.1
}
],
"top_losers_24h": [
{
"coin": "NEAR",
"mark_price": 4.7771,
"change_24h_pct": -6.45,
"open_interest_usd": 282687684,
"funding_hourly_pct": -0.002733,
"funding_annualized_pct": -23.94
}
],
"funding_highest": [
{
"coin": "XMR",
"mark_price": 609.88,
"change_24h_pct": 1.92,
"open_interest_usd": 74356657,
"funding_hourly_pct": 0.005994,
"funding_annualized_pct": 52.51
}
],
"top_gainers_24h": [
{
"coin": "ALT",
"mark_price": 0.010382,
"change_24h_pct": 17.8,
"open_interest_usd": 1480156,
"funding_hourly_pct": 0.000055,
"funding_annualized_pct": 0.49
}
],
"hyperliquid_totals": {
"listed_markets": 178,
"markets_up_24h": 40,
"volume_24h_usd": 4020638897,
"markets_counted": 118,
"markets_down_24h": 78,
"open_interest_usd": 11002653635
}
}
}
},
"schema": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
}
},
"output": {
"type": "object",
"properties": {
"example": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"majors",
"funding_highest",
"funding_lowest",
"read_at"
],
"properties": {
"notes": {
"type": "array",
"items": {
"type": "string"
}
},
"majors": {
"type": "array",
"items": {
"type": "object",
"properties": {
"coin": {
"type": "string"
},
"chainlink_usd": {
"type": [
"number",
"null"
]
},
"perp_mark_usd": {
"type": [
"number",
"null"
]
},
"change_24h_pct": {
"type": [
"number",
"null"
]
},
"open_interest_usd": {
"type": [
"number",
"null"
]
},
"funding_hourly_pct": {
"type": [
"number",
"null"
]
},
"chainlink_updated_at": {
"type": [
"string",
"null"
]
}
}
}
},
"read_at": {
"type": "string"
},
"sources": {
"type": "array",
"items": {
"type": "string"
}
},
"fear_greed": {
"type": [
"object",
"null"
],
"properties": {
"date": {
"type": "string"
},
"value": {
"type": "number"
},
"source": {
"type": "string"
},
"week_ago": {
"type": [
"object",
"null"
]
},
"yesterday": {
"type": [
"object",
"null"
]
},
"source_url": {
"type": "string"
},
"classification": {
"type": [
"string",
"null"
]
}
}
},
"funding_lowest": {
"type": "array",
"items": {
"type": "object"
}
},
"top_losers_24h": {
"type": "array",
"items": {
"type": "object"
}
},
"funding_highest": {
"type": "array",
"items": {
"type": "object"
}
},
"top_gainers_24h": {
"type": "array",
"items": {
"type": "object"
}
},
"hyperliquid_totals": {
"type": "object"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-21 02:08Z
- Last indexed by Roundhouse
- 2026-10-26 22:40Z
- Last enriched (probe, favicon, geo)
- 2026-10-20 23:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Crypto Market Pulse and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Crypto%20Market%20Pulse' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://chain.tollkit.dev/chain/pulse, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.