# Services from x402-production-d123.up.railway.app on Zero

> x402-production-d123.up.railway.app serves 3 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/x402-production-d123.up.railway.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402-production-d123.up.railway.app/health.json

## Services

- [Search Aggregator Deep Tier](https://www.zero.xyz/c/search-aggregator-deep-tier-008eee09/llms.txt): $0.05/call via x402. Aggregates deep web search results from Tavily, Exa, and Firecrawl with full page content and a synthesized answer for a given query
- [Search Aggregator Fast Tier (Serper)](https://www.zero.xyz/c/search-aggregator-fast-tier-serper-9c93d666/llms.txt): $0.01/call via x402. Performs fast web searches via Serper, returning titles, links, and snippets for up to 20 results at $0.01 USDC per query.
- [x402 Web Search Aggregator (Paid Unified Tier)](https://www.zero.xyz/c/x402-web-search-aggregator-paid-unified-tier-d506ea37/llms.txt): $0.05/call via x402. Aggregates web search results from multiple providers (Serper fast or Tavily+Exa+Firecrawl deep) into normalized results behind a single paid API call.

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

- [Zero catalog index](https://www.zero.xyz/llms.txt)