saylorinnovations.com
Crypto Market Sentiment (Fear & Greed + news mood) — News & Sentiment
DataLiveeip155:8453Exactvia cdp
CryptoNewsSentiment
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
—
Verified settled volume
0 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0020
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-24 20:15Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xf8A376eBF123D7252cd7b66bcD77A727a4def22fThe 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.
{
"error": "Payment required to access this resource.",
"accepts": [
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"memo": "saylor:news:sentiment",
"session": "eyJhcnRpY2xlSWQiOiJuZXdzOnNlbnRpbWVudCIsInJlZmVyZW5jZSI6IjdOQ1RtUWVESmQxRVNtaEthemdmRjhXU3Y3alU3aW1DazJiV0g5MTFiOE43IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjIwMDAsImV4cCI6MTc5MDI4MjgzNTY0Mn0.h0FWcYxUzqTsu3Qi9ikYhmtsxANXLT9ykP-OqOCneV0",
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"reference": "7NCTmQeDJd1ESmhKazgfF8WSv7jU7imCk2bWH911b8N7"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:news:sentiment",
"session": "eyJhcnRpY2xlSWQiOiJuZXdzOnNlbnRpbWVudCIsInJlZmVyZW5jZSI6IkM0VHY0TDlvUmc0Qm9vZjhqcmpOOHBDQ2RXQjFram5Dc3JGbndoZUVLRktWIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjIwMDAsImV4cCI6MTc5MDI4MjgzNTY0Mn0.gGAIKpUyVjXCQDfbn5Q3BntwnAyA4OhYzociOa2tI9A",
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"reference": "C4Tv4L9oRg4Boof8jrjN8pCCdWB1kjnCsrFnwheEKFKV"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:news:sentiment",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"memo": "saylor:news:sentiment",
"name": "USD Coin",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
"amount": "2000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"memo": "saylor:news:sentiment",
"name": "USD Coin",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
"amount": "2000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:news:sentiment",
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"native": true,
"session": "eyJhcnRpY2xlSWQiOiJuZXdzOnNlbnRpbWVudCIsInJlZmVyZW5jZSI6IkZvcGZHR01VeWt1cFU0UkN4dUFYcW10amJKWlhXYWYycHhhZEhBVVBWQWRUIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjE2NTg4LCJleHAiOjE3OTAyODI4MzU2OTd9.DjTe0E3WVZk8UnPmurChcIrYj5grCorMt0KSdfyGBNA",
"reference": "FopfGGMUykupU4RCxuAXqmtjbJZXWaf2pxadHAUPVAdT",
"solUsdPrice": 116.94,
"quotedLamports": "17102"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "16588",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/news/sentiment",
"tags": [
"crypto",
"news",
"sentiment"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "Crypto Market Sentiment (Fear & Greed + news mood) — News & Sentiment",
"serviceName": "Saylor Innovations Crypto News & Sentiment"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"by_coin": [
{
"coin": "BTC",
"mood": "bullish",
"headlines": 38,
"net_score": 0.2
}
],
"news_24h": {
"mood": "neutral",
"bearish": 33,
"bullish": 41,
"neutral": 66,
"headlines": 140,
"net_score": 0.05
},
"fear_greed": {
"label": "Greed",
"trend": "rising",
"value": 71,
"avg_7d": 74,
"avg_30d": 62,
"yesterday": 71
},
"generated_at": "2026-09-24T19:30:00.000Z"
}
}
},
"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",
"HEAD",
"DELETE"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"generated_at",
"fear_greed",
"news_24h"
],
"properties": {
"by_coin": {
"type": "array",
"items": {
"type": "object"
}
},
"news_24h": {
"type": "object"
},
"fear_greed": {
"type": "object"
},
"generated_at": {
"type": "string"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"by_coin": [
{
"coin": "BTC",
"mood": "bullish",
"headlines": 38,
"net_score": 0.2
}
],
"news_24h": {
"mood": "neutral",
"bearish": 33,
"bullish": 41,
"neutral": 66,
"headlines": 140,
"net_score": 0.05
},
"fear_greed": {
"label": "Greed",
"trend": "rising",
"value": 71,
"avg_7d": 74,
"avg_30d": 62,
"yesterday": 71
},
"generated_at": "2026-09-24T19:30:00.000Z"
},
"license": "LicenseRef-Saylor-Agent-Use-1.0",
"mimeType": "application/json",
"freshness": "news refreshed every 5 minutes; Fear & Greed daily",
"freeSample": "https://saylorinnovations.com/api/news/sample/sentiment",
"tokenCount": null,
"inputSchema": {
"coin": "optional ticker to focus the news mood on, e.g. BTC (query)"
},
"serviceName": "Saylor Innovations Crypto News & Sentiment",
"instructions": "STANDARD PATH (works with stock x402 clients): send payload.transaction — a base64 partially-signed Solana transaction — and we route verify/settle through an x402 facilitator that sponsors the fee and submits it. Include the chosen accepts entry as \"accepted\" so we can match terms. ALTERNATIVE PATH (no facilitator): Pick ONE entry from accepts and use the reference and session from THAT entry — each asset has its own. USDC or USDT: send an SPL transfer of the exact amount. Native SOL (asset=So11111111111111111111111111111111111111112, extra.native=true): send that many lamports with a system transfer. Either way include extra.reference as a read-only account (Solana Pay style), then retry with PAYMENT-SIGNATURE: base64({x402Version:2, payload:{session, reference}}). If your client cannot attach a reference, send payload.signature instead (USDC only). SOL amounts are quoted live and expire in 120s; stablecoins do not move. The facilitator path verifies and settles in this request. Only the alternative self-submitted Solana path needs retries while the transfer is indexed (typically 3-4 attempts over 10-20s). On that path, a 402 saying \"payment not found on-chain yet\" means keep retrying.",
"outputSchema": {
"type": "object",
"required": [
"generated_at",
"fear_greed",
"news_24h"
],
"properties": {
"by_coin": {
"type": "array",
"items": {
"type": "object"
}
},
"news_24h": {
"type": "object"
},
"fear_greed": {
"type": "object"
},
"generated_at": {
"type": "string"
}
}
},
"settlementModes": [
"facilitator-transaction",
"self-submitted-reference"
],
"typicalLatencyMs": 900
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
2000units
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
- 7LSjfr…Xacy7
- Token contract
- EPjFWd…TDt1v
- Payment window
- 2 minutes
2000units
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
- 7LSjfr…Xacy7
- Token contract
- Es9vMF…nwNYB
- Payment window
- 2 minutes
0.002USDC≈ $0.002 USD
on Base · exact scheme
Pay 0.002 USDC on Base to 0xf8A3…ef22f. The signed payment is good for 2 minutes.
- Paid to
- 0xf8A3…ef22f
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 2000 smallest units
2000units
on Polygon · 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
- 0xf8A3…ef22f
- Token contract
- 0x3c49…c3359
- Payment window
- 2 minutes
2000units
on Arbitrum · 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
- 0xf8A3…ef22f
- Token contract
- 0xaf88…e5831
- Payment window
- 2 minutes
16581units
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
- 7LSjfr…Xacy7
- Token contract
- So1111…11112
- Payment window
- 2 minutes
The catalog’s raw entry
[
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"memo": "saylor:news:sentiment",
"session": "eyJhcnRpY2xlSWQiOiJuZXdzOnNlbnRpbWVudCIsInJlZmVyZW5jZSI6IkdGOFFtQnN6RW5Wcjg4V0RSWmRqWlJMZzRMWGh2dEJLZDlxdGdUbndNVEhhIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjIwMDAsImV4cCI6MTc5MDI4MTA2OTM0M30.PWhUjifVg1-WFZZgIM4gBHtQyEViazim3F_9L8mEBTE",
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"reference": "GF8QmBszEnVr88WDRZdjZRLg4LXhvtBKd9qtgTnwMTHa"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:news:sentiment",
"session": "eyJhcnRpY2xlSWQiOiJuZXdzOnNlbnRpbWVudCIsInJlZmVyZW5jZSI6Ik5KSzR2NXI4OWVyWmVHU21SWGN1MU5yNXFxS2U2cXB1OVpWQkdGelBINW8iLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MjAwMCwiZXhwIjoxNzkwMjgxMDY5MzQzfQ.Cc9xarNLouPtCk_AHKI6BBTwBYosGM4N93wQItEAz4o",
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"reference": "NJK4v5r89erZeGSmRXcu1Nr5qqKe6qpu9ZVBGFzPH5o"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "2000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:news:sentiment",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"memo": "saylor:news:sentiment",
"name": "USD Coin",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
"amount": "2000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"memo": "saylor:news:sentiment",
"name": "USD Coin",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
"amount": "2000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:news:sentiment",
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"native": true,
"session": "eyJhcnRpY2xlSWQiOiJuZXdzOnNlbnRpbWVudCIsInJlZmVyZW5jZSI6IjZSU1FzdXN0cmF5S0FkS3hvWnZvVUxlTVc0MVB3ZWQ0ejk0YTh4Y0ZMV05YIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjE2NTgxLCJleHAiOjE3OTAyODEwNjk0MDR9.3IMcmvM3kPBBHY3ZvdMVbxo_m5yyC0sw6KILr4NLfek",
"reference": "6RSQsustrayKAdKxoZvoULeMW41Pwed4z94a8xcFLWNX",
"solUsdPrice": 117,
"quotedLamports": "17094"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "16581",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"by_coin": [
{
"coin": "BTC",
"mood": "bullish",
"headlines": 38,
"net_score": 0.2
}
],
"news_24h": {
"mood": "neutral",
"bearish": 33,
"bullish": 41,
"neutral": 66,
"headlines": 140,
"net_score": 0.05
},
"fear_greed": {
"label": "Greed",
"trend": "rising",
"value": 71,
"avg_7d": 74,
"avg_30d": 62,
"yesterday": 71
},
"generated_at": "2026-09-24T19:30:00.000Z"
}
}
},
"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",
"HEAD",
"DELETE"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"generated_at",
"fear_greed",
"news_24h"
],
"properties": {
"by_coin": {
"type": "array",
"items": {
"type": "object"
}
},
"news_24h": {
"type": "object"
},
"fear_greed": {
"type": "object"
},
"generated_at": {
"type": "string"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-24 20:15Z
- Last indexed by Roundhouse
- 2026-09-25 04:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-24 20:45Z
- x402 version
- 2
- Max timeout
- 120s
- 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
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. Verified volume counts only settlements with an on-chain EIP-3009 marker.
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Using Roundhouse, look up the x402 service saylorinnovations.com 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=saylorinnovations.com' 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://saylorinnovations.com/api/news/sentiment, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.