Crypto News Signal
Crypto News Signal: recent CoinDesk, Cointelegraph, and Decrypt headlines filtered by topic, with source links, summaries, publish times, positive/negative keyword hits, sentiment counts, and aggregate market tone for trading, newsletter, and crypto-research agents.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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.
{
"price": {
"unit": "USDC base units",
"amount": "1000",
"display": "$0.001 USDC"
},
"network": "Base",
"networkId": "eip155:8453",
"serviceName": "Crypto News Signal",
"acceptedAsset": {
"symbol": "USDC",
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"queryExamples": [
"query=bitcoin&limit=12",
"query=ethereum%20etf&limit=10",
"query=defi%20exploit&limit=8"
],
"freePreviewUrl": "https://eveningdesk.cloud/token-signal/v1/crypto-news-signal?query=bitcoin&limit=3",
"paidOutputFields": [
"generatedAt",
"query",
"summary.items",
"summary.marketTone",
"summary.sentimentCounts",
"items[].source",
"items[].title",
"items[].summary",
"items[].publishedAt",
"items[].sentiment",
"items[].score",
"items[].url"
]
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.001 USDC on Base to 0x1033…8129F. The signed payment is good for 5 minutes.
- Paid to
- 0x1033…8129F
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 1000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10333d09dd1F5ebD8b8BD83f74A9d99C7b88129F",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": "12",
"query": "bitcoin"
}
},
"output": {
"type": "json",
"example": {
"items": [
{
"url": "https://cointelegraph.com/markets/us-hints-at-more-yen-intervention-five-things-to-know-in-bitcoin-this-week",
"score": 0,
"title": "US hints at more yen intervention: Five things to know in Bitcoin this week",
"source": "cointelegraph",
"summary": "Concise source-linked market headline summary.",
"sentiment": "neutral",
"publishedAt": "2026-08-03T14:11:26+00:00"
}
],
"query": "bitcoin",
"summary": {
"items": 12,
"netScore": 0,
"marketTone": "mixed",
"sentimentCounts": {
"neutral": 7,
"negative": 2,
"positive": 3
}
},
"generatedAt": "2026-08-03T18:31:03Z"
}
},
"buyerUseCases": [
"Pull fresh source-linked crypto headlines for topics like bitcoin, ethereum, DeFi, regulation, ETF, or market sentiment.",
"Add keyword sentiment before an agent sizes a trade idea, drafts a newsletter brief, or opens deeper research."
],
"queryExamples": [
"query=bitcoin&limit=12",
"query=ethereum%20etf&limit=10",
"query=defi%20exploit&limit=8"
],
"freePreviewUrl": "https://76.13.79.47.nip.io/token-signal/v1/crypto-news-signal?query=bitcoin&limit=3"
},
"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": {
"limit": {
"type": "string",
"default": "12"
},
"query": {
"type": "string",
"default": "bitcoin"
}
}
}
}
},
"output": {
"type": "object",
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": "/token-signal-x402/v1/crypto-news-signal"
}
}Provenance
- Seen in the source catalog
- 2026-09-08 08:00Z
- Last indexed by Roundhouse
- 2026-09-09 06:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 19:15Z
- 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. 17 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 News Signal 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%20News%20Signal' 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://76.13.79.47.nip.io/token-signal-x402/v1/crypto-news-signal, 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.