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ArgonautWorks Crypto Headline Pulse API
x402
ArgonautWorks Crypto Headline Pulse API is a paid API for AI agents from argonaut-crypto-headline-pulse.vercel.app, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-11).
Fetches fresh crypto news headlines from four independent publisher feeds (CoinDesk, Decrypt, Ethereum Foundation, The Block), optionally filtered by topic keyword, returning source-linked articles with summaries and categories.
Price / call$0.007
Success—
StatusUnknown
How this service works
Fresh crypto news and source-linked Bitcoin, Ethereum, Base, and market headlines from four independent publisher feeds, with deterministic topic filtering and no generated claims.
Output
A JSON object containing the requested headlines array (each with title, URL, source, summary, categories, and published_at), the total match_count, an observed_at timestamp, the active topic filter if any, the limit applied, and a sources breakdown showing which of the four configured publishers (CoinDesk, Decrypt, Ethereum Foundation, The Block) were responsive versus failed.
Example use cases
Daily crypto market briefing
“Give me the top 10 crypto market headlines right now — I want titles, sources, and summaries so I can get a quick read on what's moving today.”
Monitoring Base chain coverage
“Fetch up to 20 headlines about Base from the crypto news feeds and show me everything that's been published — I'm tracking ecosystem coverage.”
Bitcoin news alert workflow
“Check the crypto headline feeds for any recent stories mentioning Bitcoin and show me the titles, links, and summaries — I want to see what's being reported right now.”
Technical details
Endpoint
GEThttps://argonaut-crypto-headline-pulse.vercel.app/api/v1/headlines?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real, source-linked crypto news headlines from established publishers (CoinDesk, Decrypt, Ethereum Foundation, The Block) without AI-generated or hallucinated claims. It's ideal for agents that need deterministic topic filtering across up to four live feeds in a single call, and where provenance and publisher attribution matter. Prefer it over general web search when you want structured, consistently formatted crypto news with categories and summaries already attached.
Side effects
- One or more publisher feeds unresponsive — reflected in sources.failed array with partial results still returned
- topic parameter too long (>80 chars) — validation error
- limit out of range (<1 or >20) — validation error
- No headlines match the topic filter — returns empty headlines array with match_count of 0
- Vercel cold start causing slightly elevated latency on first request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"limit": 10,
"topic": "base",
"sources": {
"failed": [],
"configured": [
"CoinDesk",
"Decrypt",
"Ethereum Foundation",
"The Block"
],
"responsive": [
"CoinDesk",
"Decrypt",
"Ethereum Foundation",
"The Block"
]
},
"headlines": [
{
"url": "https://publisher.example/story",
"title": "Example headline",
"source": "Publisher",
"summary": "Short publisher-provided summary.",
"categories": [
"Markets"
],
"published_at": "2026-08-04T21:00:00.000Z"
}
],
"match_count": 3,
"observed_at": "2026-08-04T21:30:00.000Z"
}
}Tags
x402
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