# Services from agent-search.centorprat.workers.dev on Zero > agent-search.centorprat.workers.dev serves 18 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/agent-search.centorprat.workers.dev Live health (JSON, refreshed every minute): https://www.zero.xyz/host/agent-search.centorprat.workers.dev/health.json ## Services - [Research Paper Search](https://www.zero.xyz/c/research-paper-search-809cb05b/llms.txt): $0.01/call via x402. Searches and merges academic papers across Google Scholar, arXiv, Crossref, OpenAlex, and Semantic Scholar in a single call, returning unified metadata with open-access PDF links. - [Web Search + Read Top Pages](https://www.zero.xyz/c/web-search-read-top-pages-ddb2187e/llms.txt): $0.015/call via x402. Performs a web search and returns the top 1-5 pages as clean markdown with title, author, date, and a prompt-injection safety verdict, plus remaining search results. - [Deep Research (web + papers)](https://www.zero.xyz/c/deep-research-web-papers-4dcd680e/llms.txt): $0.2/call via x402. Performs comprehensive multi-angle web research by answering a query plus up to 3 sub-questions, reading up to 16 full pages, and optionally including Google Scholar papers or news — returning only extractive quoted passages, no LLM generation. - [Local Web Search by Country/City](https://www.zero.xyz/c/local-web-search-by-country-city-1fc48785/llms.txt): $0.012/call via x402. Returns Google search results as seen by a user in a specific country, language, and city, including local map pack businesses, top stories, and per-result domain metadata. - [Web Search Answer + Citations](https://www.zero.xyz/c/web-search-answer-citations-b90822d8/llms.txt): $0.01/call via x402. Answers a natural language question using live web data, returning quoted passages with source URLs, a confidence level, and related questions — no LLM hallucination. - [Web + News Search Monitor](https://www.zero.xyz/c/web-news-search-monitor-9329b97d/llms.txt): $0.006/call via x402. Polls web or news search results for a query and returns only new (unseen) results since the last call, using a watchId to track state. - [Code Search: GitHub + npm](https://www.zero.xyz/c/code-search-github-npm-c39efeaf/llms.txt): $0.006/call via x402. Search GitHub repositories and npm packages for a coding task, returning results ranked by stars and relevance with metadata like last push date and links. - [News Search – Clustered Google News Results](https://www.zero.xyz/c/news-search-clustered-google-news-results-38a3f040/llms.txt): $0.006/call via x402. Searches Google News and Google News RSS, merges and clusters results by story, returning one row per story with the best outlet, coverage count, and clean links — ranked by authority, recency, and breadth. - [Web Search for AI Agents](https://www.zero.xyz/c/web-search-for-ai-agents-6876420e/llms.txt): $0.006/call via x402. Performs a single web search query with Google-quality results re-ranked for authority, optionally merged with academic papers, GitHub repos, and news, returning ranked results with domain authority and type metadata. - [Batch Web Search](https://www.zero.xyz/c/batch-web-search-83c0afbd/llms.txt): $0.04/call via x402. Runs up to 10 parallel web search queries in a single API call at a discounted per-query rate, returning authority-ranked results for each. - [Exa-Compatible Page Contents](https://www.zero.xyz/c/exa-compatible-page-contents-729bea99/llms.txt): $0.004/call via x402. Fetches full text and highlights from up to 10 URLs in Exa /contents-compatible format, returning clean markdown with prompt-injection detection - [Exa-Compatible Web Search](https://www.zero.xyz/c/exa-compatible-web-search-e289452d/llms.txt): $0.006/call via x402. Drop-in replacement for Exa /search that returns Google-quality authority-ranked web results with page text and highlights included, at lower cost than Exa. - [Firecrawl-Compatible Scrape (agent-search.centorprat.workers.dev)](https://www.zero.xyz/c/firecrawl-compatible-scrape-agent-search-centorprat-workers-dev-32c8fc57/llms.txt): $0.005/call via x402. Scrapes a public URL and returns markdown, links, and raw HTML with metadata and a prompt-injection verdict, using a Firecrawl v1-compatible request/response format. - [Firecrawl-Compatible Search](https://www.zero.xyz/c/firecrawl-compatible-search-4d78f926/llms.txt): $0.015/call via x402. Drop-in Firecrawl v1 /search replacement that returns markdown-scraped web results with prompt-injection verdicts at a lower price per call - [Google SERP API](https://www.zero.xyz/c/google-serp-api-968a726c/llms.txt): $0.015/call via x402. Fetches full Google search results pages including organic results, answer boxes, knowledge graph, People Also Ask, related searches, top stories, local pack, domain authority, and page summaries for any country/language/city. - [Google SERP Geo Comparison](https://www.zero.xyz/c/google-serp-geo-comparison-14f0a801/llms.txt): $0.035/call via x402. Compares Google search results for a single query across 2–4 countries or cities side by side, showing top-10 results per location, shared URLs, unique URLs, position tables, and overlap metrics. - [Tavily-Compatible Web Search](https://www.zero.xyz/c/tavily-compatible-web-search-cefa4d03/llms.txt): $0.008/call via x402. Drop-in Tavily API-compatible web search endpoint returning ranked results with optional extractive answers and raw page content, at a lower price than Tavily. - [Web Research (8 Pages)](https://www.zero.xyz/c/web-research-8-pages-5ff9f6fd/llms.txt): $0.05/call via x402. Searches the web, reads up to 8 full pages, and extracts the 15 most relevant passages with sources to answer a research question in a single 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)