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CortexCloud Research Answer API
x402
CortexCloud Research Answer API is a paid API for AI agents from api.cortexcloud.org, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-13).
Answers a natural language research query by searching the web and returning sourced answers, settled per-call in USDC via x402
Price / call$0.012
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
A JSON object containing the original query, an array of sources (each with a URL and title), and the price paid in USD. The agent receives attributed, web-sourced information suitable for answering research questions or grounding downstream reasoning.
Example use cases
Competitive intelligence for a startup
“Research the question 'Who are the main competitors of Stripe in the payment processing space and what are their market shares?' and give me sourced answers with URLs.”
Quick factual lookup for a report
“I need a cited answer to 'What is the current global CO2 concentration in the atmosphere and how has it changed over the last decade?' — pull sources so I can reference them.”
Current events briefing for an agent
“Look up 'What major AI regulation bills have been passed or proposed in the EU in 2024 and 2025?' and return sourced results I can summarize for my newsletter.”
Technical details
Endpoint
GEThttps://api.cortexcloud.org/v1/research/answerWhen to prefer
Choose this endpoint when an AI agent needs a quick, sourced, pay-per-call research answer without managing API keys or subscriptions. It is ideal for one-off factual lookups, citation gathering, or grounding agent reasoning in web sources. Prefer it over general search APIs when you want structured JSON output with source attribution and no setup overhead, and when the x402/USDC micropayment model fits the agent's payment infrastructure.
Side effects
- Query too short or empty — schema requires minLength:1
- Query exceeds 400 characters — truncation or rejection
- Payment failure via x402 — agent lacks sufficient USDC balance on Base
- No relevant sources found for an obscure or very niche query
- Rate limiting or service unavailability returning 5xx errors
- Stale or low-quality sources returned for rapidly changing topics
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string |
Output
Schema · Response
{
"type": "object",
"format": "application/json",
"example": {
"query": "...",
"sources": [
{
"url": "...",
"title": "..."
}
],
"price_usd": 0.012
}
}Tags
x402
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