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Briefs402 Research Literature Brief
x402
Briefs402 Research Literature Brief is a paid API for AI agents from briefs402.worlddata402.workers.dev, paid per call via x402, $0.5/call, status unknown (last checked 2026-10-30).
Generates a ready-made literature review brief on any research topic by fusing arXiv and Crossref sources, written by Llama 3.3 70B under strict no-fabrication rules, paid via USDC on Base mainnet over x402.
Price / call$0.5
Success—
StatusUnknown
How this service works
Ready-made intelligence reports for AI agents: company, country, daily market, EU tenders, domain due diligence, location, literature review, food product, package risk and document translation briefs. Each brief fuses several live data sources and is written by Llama 3.3 70B under strict no-fabrication rules (English or Arabic). USDC on Base mainnet over x402. No API key, no account.
Output
Returns a JSON object with the research subject, key facts including number of books, arXiv results count, Crossref results count, year range of publications, and an overall confidence rating (e.g. 'high'). The summary is written in English or Arabic as specified, synthesized by Llama 3.3 70B from live academic data sources under no-fabrication rules.
Example use cases
Academic background for grant proposal
“I need a research brief on mRNA vaccine mechanisms for a grant proposal I'm writing — pull key facts from academic sources and summarize what the literature says, in English.”
Arabic-language research summary for students
“Give me a literature review on renewable energy storage technologies, but write the output in Arabic — I need key facts, year range of publications, and how confident the sources are.”
Quick scientific fact-check for a report
“I'm writing a report on antibiotic resistance — can you generate a research brief with the main academic findings, how many papers were found, and a confidence level?”
Technical details
Endpoint
GEThttps://briefs402.worlddata402.workers.dev/v1/brief/research?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, multi-source academic literature brief on any topic without setting up API keys or accounts, especially when paying per-query via USDC on Base mainnet. It is ideal for agents that need trustworthy, no-fabrication research summaries fusing arXiv and Crossref data, and supports Arabic output for non-English use cases. Prefer over general web search when structured academic facts with confidence scoring matter.
Side effects
- Query string too short (under 2 characters) or too long (over 200 characters) returns validation error
- Unsupported lang value (not 'en' or 'ar') causes request rejection
- arXiv or Crossref upstream unavailability may result in partial or empty key_facts
- Payment failure over x402 (insufficient USDC balance or wrong network) blocks access
- Very niche topics may return low confidence or minimal paper counts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"subject": "Research: agent payments protocol",
"key_facts": {
"books": 5,
"year_range": "2019–2026",
"arxiv_results": 10,
"crossref_results": 10
},
"confidence": "high"
}
}Tags
x402
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