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Causal Web Search
x402
Causal Web Search is a paid API for AI agents from stripe-agent-payment-mvp.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).
Performs a normalized web search and returns structured results suitable for agent consumption, paid per query via x402.
Price / call$0.02
Success—
StatusUnknown
How this service works
Normalized web search results for agents.
Output
Returns a normalized list of web search results (up to 10), each containing a title, URL, and snippet/description, structured for direct agent consumption.
Example use cases
Real-time fact lookup for agent
“Search the web for the latest information about SpaceX Starship launch status and return 3 results with titles and descriptions.”
Competitive research assistant
“Find me the top 8 web results comparing Stripe and Braintree payment processing fees — I need titles and snippets to analyze.”
News gathering for daily briefing
“Search for the most recent news about the Federal Reserve interest rate decision and pull back 5 results so I can summarize what happened.”
Technical details
Endpoint
POSThttps://stripe-agent-payment-mvp.vercel.app/api/x402/search?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs live, normalized web search results in a structured format, especially within x402 micropayment-enabled pipelines where per-query billing is acceptable. Prefer this over scraping or browser automation when you need clean, pre-normalized result objects without HTML parsing overhead.
Side effects
- Query exceeds 240 character limit — request rejected with validation error
- Count outside 1-10 range — request rejected
- Payment failure via x402 protocol — search not performed
- Query string is empty or missing — validation error
- Upstream search provider unavailable — service error returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| count | integer | |
| query | string |
Tags
x402
Reviews
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