# x402 Semantic Web Search via Tavily

> x402 Semantic Web Search via Tavily is a paid API for AI agents from x402-seller-0ay3.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Performs intent-aware semantic web search returning ranked results (title, URL, snippet) plus an optional AI-generated direct answer, powered by Tavily.

## Facts

- Endpoint: POST https://x402-seller-0ay3.onrender.com/api/search/web
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-semantic-web-search-via-tavily-4e2235c8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_F1w-bALvfrcKX2ucqtiWI

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-semantic-web-search-via-tavily-4e2235c8 -d '<json body>'
```

Example prompt: Search the web for the latest developments in fusion energy research and give me 7 results with snippets and a direct answer if possible.

## When to prefer this

Choose this endpoint when you need current, real-world information beyond an LLM's training cutoff, and you want intent-aware semantic matching rather than keyword-only search. Prefer it over structured Google search results when you also want an AI-synthesized direct answer alongside ranked links. Best for research, fact-checking, news, and any question where recency or source diversity matters.

## Known failure modes

- Empty results if query is too vague or niche — returns empty array
- Tavily API downstream outage returns 502 or 503
- num_results out of range (must be 1-10) returns 400 validation error
- Very recent events may not yet be indexed, returning outdated snippets
- Query string missing returns 400 bad request

## How this service works

Semantic web search (understands intent, not just keyword matching) — for an agent that needs current information, facts, or sources beyond its training data. Returns ranked results (title/url/content snippet) plus an optional AI-generated direct answer, via Tavily. JSON body: {query: string, num_results?: integer 1-10 (default 5)}.

## Output

A JSON array of ranked web results, each containing a title, URL, and content snippet, plus an optional AI-generated direct answer synthesizing the top results. Up to 10 results depending on the num_results parameter.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query."
  },
  "num_results": {
   "type": "integer",
   "description": "Number of results to return (1-10, default 5)."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-semantic-web-search-via-tavily-4e2235c8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-seller-0ay3.onrender.com](https://www.zero.xyz/host/x402-seller-0ay3.onrender.com/llms.txt)