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Nova Research Brief API
x402
Nova Research Brief API is a paid API for AI agents from nova-agent-output-recovery.onrender.com, paid per call via x402, $0.99/call, status unknown (last checked 2026-10-27).
Generates a cited research memo answering a business or technical question about a specific company using public sources, returned as structured JSON with scored citations and a markdown narrative.
Price / call$0.99
Success—
StatusUnknown
How this service works
Paid x402 v2 API for source-linked company research and deterministic recovery of malformed AI-agent output. Configured network: eip155:8453. Agent output recovery is $0.01. Company intelligence reports are $0.25. Cited research memos are $0.99. Prices are fixed exact USDC payments. Call without a payment header first and follow the HTTP 402 PAYMENT-REQUIRED challenge. MCP Streamable HTTP is at https://nova-agent-output-recovery.onrender.com/mcp. The free nova_catalog tool lists prices. Paid MCP tools return an x402 payment-required tool result until payment is verified and settled.
Output
A JSON object containing a status field, echoed request parameters, an array of scored and ranked source citations (each with URL, title, domain, snippet, confidence rating, source type, and published date), a markdown-formatted research decision memo with an executive answer and inline citations, and metadata about the underlying provider search (cache hit, number of searches, response time, credits used, and request IDs).
Example use cases
Competitive due diligence before a deal
“I'm evaluating a potential partnership with Plaid. Can you generate a cited research brief answering: 'What public evidence describes Plaid's data-sharing practices and any regulatory actions in the past year?' Use standard depth and a 1-year time window.”
Tracking a competitor's product launches
“What do public sources say about Ripple's new product launches and enterprise partnerships over the last 90 days? Pull together a cited memo with as many sources as you can find — use deep retrieval.”
Investor research on an unfamiliar startup
“I need a cited research memo on Anduril Industries — specifically answering 'What contracts, funding rounds, or government partnerships has Anduril announced?' Focus on the last year and use deep depth.”
Technical details
Endpoint
POSThttps://nova-agent-output-recovery.onrender.com/v1/research-brief?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a structured, citation-backed research memo about a specific company or organization, especially when source credibility and traceability matter. It is preferable over generic web search when you need scored and ranked citations with confidence ratings, a synthesized markdown narrative, and structured JSON output ready for downstream agent consumption. Best suited for due diligence, competitive intelligence, and investor research tasks where cited evidence is required. Use the deep depth option when breadth of sources matters more than speed.
Side effects
- Missing or too-short question field (minLength 8) returns validation error
- Payment header missing or invalid triggers HTTP 402 with payment challenge
- Company domain not publicly indexed returns sparse or zero citations
- Deep retrieval depth may timeout on slow provider responses
- Time window constraints may yield no results if the topic has no recent coverage
- Provider (Tavily) rate limits or outages cause upstream failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| depth | string | Optional retrieval depth. Defaults to standard. Deep uses a deeper provider search and still returns 5 to 8 citations. |
| domain | string | Optional public company domain or website, such as https://example.com. |
| company | string | Optional company or organization name used to focus public-source retrieval. |
| question | string | Public business, technical, or general research question the memo should answer with cited sources. |
| time_window | string | Optional evidence window. Defaults to year. Values map to the research provider where supported; 90d is applied as a query constraint. |
Output
Schema · Response
{
"type": "json",
"example": {
"status": "complete",
"request": {
"depth": "standard",
"domain": "northwind.example",
"company": "Northwind",
"question": "What public evidence describes Northwind's payments product and its Contoso partnership?",
"timeWindow": "year",
"providerTimeRange": "year"
},
"sources": [
{
"id": "s1",
"url": "https://www.northwind.example/payments",
"score": 0.91,
"title": "Northwind payments overview",
"domain": "northwind.example",
"snippet": "Northwind announced a partnership with Contoso that expanded its payments product in 2026.",
"confidence": "high",
"sourceType": "external",
"publishedDate": "2026-06-01"
},
{
"id": "s2",
"url": "https://www.northwind.example/about",
"score": 0.88,
"title": "About Northwind",
"domain": "northwind.example",
"snippet": "Northwind builds checkout software for retailers.",
"confidence": "high",
"sourceType": "company-owned",
"publishedDate": null
},
{
"id": "s3",
"url": "https://www.northwind.example/product",
"score": 0.84,
"title": "Product page",
"domain": "northwind.example",
"snippet": "The payments product supports card checkout for merchants.",
"confidence": "high",
"sourceType": "company-owned",
"publishedDate": "2026-03-01"
},
{
"id": "s4",
"url": "https://journal.example.org/payments-2026",
"score": 0.81,
"title": "Industry journal",
"domain": "journal.example.org",
"snippet": "Public filings describe Northwind payments as merchant checkout software.",
"confidence": "high",
"sourceType": "external",
"publishedDate": "2026-05-12"
},
{
"id": "s5",
"url": "https://news.example.org/northwind-contoso",
"score": 0.77,
"title": "Trade press",
"domain": "news.example.org",
"snippet": "Northwind denied a partnership with Contoso and said the payments product was not expanded.",
"confidence": "high",
"sourceType": "external",
"publishedDate": "2026-06-04"
}
],
"markdown": "# Cited Research Decision Memo\n\n## Executive answer\nSix public sources describe Northwind's payments product.\n",
"research": {
"cacheHit": false,
"provider": "Tavily",
"searches": 2,
"requestIds": [
"broad-1",
"focused-1"
],
"creditsUsed": 2,
"responseTimeMs": 1600,
"citedSourceCount": 5,
"retrievedSourceCount": 5
},
"confidence": {
"level": "medium",
"rationale": "Public sources span more than one domain, with at least one unresolved disagreement."
},
"generatedAt": "2026-07-26T00:00:00.000Z",
"executiveAnswer": "Six public sources describe Northwind's payments product. The company site says it supports card checkout for merchants [s2], while independent reporting disagrees about a Contoso partnership [s1][s5]. Overall confidence is medium. This memo is research triage, not a financial decision.",
"risksAndUnknowns": [
"Public web sources can be incomplete, biased, or outdated.",
"Retrieved sources disagree about the Contoso partnership."
],
"claimEvidenceMatrix": [
{
"claim": "Northwind announced a partnership with Contoso that expanded its payments product in 2026.",
"claimId": "c1",
"evidence": "Northwind announced a partnership with Contoso that expanded its payments product in 2026.",
"sourceIds": [
"s1"
],
"confidence": "high",
"sourceUrls": [
"https://www.northwind.example/payments"
]
}
],
"conflictingEvidence": [
{
"topic": "partnership, contoso, payments",
"summary": "Retrieved public sources overlap but take opposing positions.",
"sourceUrls": [
"https://www.northwind.example/payments",
"https://news.example.org/northwind-contoso"
],
"statements": [
{
"evidence": "Northwind announced a partnership with Contoso that expanded its payments product in 2026.",
"sourceUrl": "https://www.northwind.example/payments"
},
{
"evidence": "Northwind denied a partnership with Contoso and said the payments product was not expanded.",
"sourceUrl": "https://news.example.org/northwind-contoso"
}
]
}
],
"nextResearchActions": [
"Open https://www.northwind.example/payments and verify the lead claim against the full page.",
"Compare https://www.northwind.example/payments with https://news.example.org/northwind-contoso before relying on either partnership claim.",
"Check the lowest-confidence source against a primary filing and record what remains unknown."
]
}
}Tags
x402
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