# Exa Neural Search (GEDX402)

> Exa Neural Search (GEDX402) is a paid API for AI agents from search.gedx402.com, paid per call via x402, $0.013/call, status unknown (last checked 2026-09-14).

Performs Exa neural/semantic/keyword web search given a query string, returning relevant results without requiring an API key — pay-per-request via USDC.

## Facts

- Endpoint: GET https://search.gedx402.com/v1/exa/search
- Price: $0.013/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/exa-neural-search-gedx402-bd898470
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_falckvCDU66B_A0j-IGfG

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 exa-neural-search-gedx402-bd898470
```

Example prompt: Use Exa neural search to find the top 5 results about 'AI agent frameworks in 2024' — search type auto, up to 2000 characters per result.

## When to prefer this

Prefer this endpoint when you need semantic or neural web search (not just keyword matching), especially when searching for people, companies, or conceptual topics where meaning matters more than exact terms. Use over Tavily-shaped search when you want Exa's neural ranking specifically, or when retrieving content via URL is needed via the companion /contents endpoint.

## Known failure modes

- Payment failure: 402 if USDC payment not attached or insufficient
- Invalid search type enum: 400 if type is not 'auto', 'neural', or 'keyword'
- Missing query: 400 if query field is absent
- Upstream Exa API unavailability: 502 or 503 error
- Rate limiting: too many requests in a short window

## How this service works

Exa neural search API — search. POST { query } for search or { urls } for contents. https://docs.exa.ai $0.013 USDC per request. Agent search: exa, neural search, semantic search, web search, people, company.

## Output

A list of search results from the Exa neural search engine, each containing a URL, title, and content snippet (up to max_characters), ranked by semantic relevance to the query.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "type": {
   "enum": [
    "auto",
    "neural",
    "keyword"
   ],
   "type": "string"
  },
  "query": {
   "type": "string"
  },
  "num_results": {
   "type": "integer"
  },
  "max_characters": {
   "type": "integer"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/exa-neural-search-gedx402-bd898470/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from search.gedx402.com](https://www.zero.xyz/host/search.gedx402.com/llms.txt)