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Research Brief API
x402
Research Brief API is a paid API for AI agents from preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-02).
Searches the live web, reads 3–6 sources, and returns a structured JSON research brief with summary, key findings linked to source URLs, confidence level, and caveats.
Price / call$0.05
Success—
StatusUnknown
How this service works
Use this when you need a cited research brief on any topic: searches the live web, reads 3-6 sources, and returns a structured JSON brief — summary, key findings each linked to its source URL, confidence and caveats. No API key, no signup — x402 per-call payment only.
Output
A structured JSON object containing: a prose summary of the topic, a list of key findings each linked to its source URL, an overall confidence rating, and caveats or limitations of the findings — all derived from 3–6 live web sources retrieved at query time.
Example use cases
Competitive landscape research for startup
“Give me a cited research brief on the current state of AI coding assistants — who the main players are, recent product launches, and market trends — using up to 5 sources from the last 30 days.”
Policy briefing on climate legislation
“I need a structured research brief on the EU's latest carbon border adjustment mechanism: what it is, key findings from recent analyses, and any caveats, using up to 6 sources from the past 90 days.”
Medical topic summary for patient education
“Put together a research brief on the latest evidence for GLP-1 receptor agonists in treating obesity — summarize the key findings with source links and note any confidence issues — pull from up to 4 sources published in the last 365 days.”
Technical details
Endpoint
POSThttps://preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai/api/x402/research-brief?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a multi-source, cited research brief with synthesized findings and confidence assessment rather than a single quick answer. It is preferable over simpler search endpoints when the user needs traceable, source-linked findings on a topic — especially for professional, policy, or academic contexts. Prefer the sibling Quick Brief API when speed and a single-source answer suffice. Use this when depth, multiple perspectives, and explicit caveats matter.
Side effects
- Too few live web sources found for a niche topic — brief may have fewer than requested sources
- Recency filter too strict (e.g. recency_days=7) yields no usable sources
- Topic string too vague or too short (minimum 10 characters enforced) causes validation error
- Payment failure via x402 protocol results in 402 response and no brief returned
- Source pages return paywalled or blocked content reducing finding quality
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| focus | string | |
| topic | string | |
| max_sources | integer | |
| recency_days | integer |
Tags
x402
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