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CortexCloud Grounded Web Search with Citations
x402
CortexCloud Grounded Web Search with Citations is a paid API for AI agents from api.cortexcloud.org, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-14).
Performs grounded web search with cited results using Brave Search, paid per call via x402/USDC
Price / call$0.006
Success—
StatusUnknown
How this service works
One pay-per-call API for AI agents: optimization, AI, research, on-chain data, and automation — all settled in USDC on Base via x402. Discover via MCP and Bazaar, estimate free, pay per call. No API keys, no signup.
Output
Returns a list of web search results (up to 20) including titles, URLs, snippets, and citation metadata sourced from Brave Search, grounded in real web content with freshness filtering applied.
Example use cases
Real-time competitor research
“Search the web for recent news and announcements from Anthropic in the past week — give me 10 results with citations so I can see what they've been up to.”
Fact-checking with sources
“Look up whether the US Federal Reserve raised interest rates this month and give me 5 cited web results so I can verify the facts.”
Market trend discovery
“Search for the latest developments in solid-state battery technology and return 8 results from the past week with source links.”
Technical details
Endpoint
GEThttps://api.cortexcloud.org/v1/research/searchWhen to prefer
Choose this endpoint when you need real-time, grounded web search results with source citations and freshness control, especially in agentic workflows that require verifiable references. Prefer it over static knowledge bases when recency matters. Ideal for agents that need to cite sources or cross-check current facts without managing API keys, using x402 micropayment per call instead.
Side effects
- Query string missing or empty — returns 400 error
- Query exceeds 400 character limit — returns validation error
- Insufficient USDC balance for x402 payment — returns 402 Payment Required
- Freshness filter yields no results for very recent timeframes — returns empty result set
- Brave Search API upstream outage — returns 503 or timeout
- Count parameter out of range (below 1 or above 20) — returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| count | integer | |
| query | string | |
| freshness | string |
Output
Schema · Response
{
"type": "object",
"format": "application/json",
"example": {
"query": "quantum annealing",
"results": [
{
"url": "...",
"title": "...",
"source": "..."
}
],
"price_usd": 0.006
}
}Tags
x402
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