# Tavily AI-Powered Web Search via SignalFuse

> Tavily AI-Powered Web Search via SignalFuse is a paid API for AI agents from api.signalfuse.co, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-14).

Performs an AI-powered web search using Tavily, returning relevant, curated search results for a given query

## Facts

- Endpoint: POST https://api.signalfuse.co/v1/gateway/search/tavily
- Price: $0.012/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-signalfuse-co-830061d5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CuYtMX7VKcp1u5cxdf4cZ

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 api-signalfuse-co-830061d5 -d '<json body>'
```

Example prompt: Search the web for the latest developments in quantum computing breakthroughs in 2025 and give me a summary of what you find.

## When to prefer this

Use this endpoint when you need AI-enhanced web search results via Tavily — preferred over Brave Search when you want AI-curated relevance ranking and summarization rather than raw search index results. Best for research, fact-finding, and real-time information retrieval tasks where answer quality matters.

## Known failure modes

- Invalid or empty query returns 400 error
- Tavily upstream service unavailable returns 503
- Rate limit exceeded returns 429
- Authentication or payment failure returns 402
- Malformed request body returns 400

## How this service works

AI-powered web search via Tavily

## Output

Returns AI-curated web search results from Tavily including relevant URLs, page titles, and content snippets matching the query, processed for relevance and quality.

## Example request

```json
{
 "query": "artificial intelligence"
}
```

## Request schema (JSON Schema)

```json
{
 "output": {
  "properties": {
   "query": {
    "type": "string"
   },
   "results": {
    "type": "array",
    "items": {
     "type": "object",
     "properties": {
      "title": {
       "type": "string"
      },
      "url": {
       "type": "string",
       "format": "uri"
      },
      "content": {
       "type": "string"
      },
      "score": {
       "type": "number"
      }
     }
    }
   },
   "response_time": {
    "type": "number"
   }
  },
  "required": [
   "query",
   "results"
  ]
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "query": "bitcoin ETF approval",
  "results": [
   {
    "url": "https://example.com",
    "score": 0.95,
    "title": "Bitcoin ETF...",
    "content": "..."
   }
  ],
  "response_time": 1.2
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-signalfuse-co-830061d5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.signalfuse.co](https://www.zero.xyz/host/api.signalfuse.co/llms.txt)