x402 Directory

Search & web

Paid search & web APIs an AI agent can call with x402.

333 endpoints

web-search · Search

web-search · api.agentstools.dev

Free-text web search for AI agents: ranked title/url/snippet results fused across multiple engines (Brave, Google, DuckDuckGo, Mojeek, Startpage, Yahoo), with freshness filters (past day/week/month/year), region/locale and SafeSearch. One call for grounded, up-to-date web results — no keys, no scraping setup.

$0.001 Base 210 paid calls

reefjaco · Search

reefjaco · molecular-packs-metadata-docs.trycloudflare.com

reefjaco POST /search Web search

$0.03 Base 199 paid calls

Agent402 bestsellers · Bestsellers

Agent402 bestsellers · agent402.tools

What agents actually pay for on a 500+ tool x402 catalog - the paid intelligence layer over Agent402's own sales ledger, the one demand signal that never reaches the chain (settlements are on-chain; WHICH tool was bought is not). Aggregate sales totals are free at /api/sales; this adds the per-tool layer they deliberately omit: pick the window (days 1-90) and the ranking lens with sort: 'buyers' (distinct paying wallets, default - the whale/wash-resistant read), 'sales' (volume), 'usd'.

$0.005 Base 100% up 187 paid calls

agent demand radar · Demand Radar

agent demand radar · agent402.tools

What agents want that no one is serving yet - the paid intelligence layer over Agent402's agent-demand board, for x402 sellers deciding what to build next. Ranks the aggregated wish clusters (searches that found nothing + explicit tool requests) and adds the analysis the free raw feed (/api/wishes) doesn't have: signalType classifies each cluster as 'explicit-request' (agents proactively asked - build it), 'discoverability' (dominated by find-misses - the capability may exist but ranking.

$0.005 Base 100% up 172 paid calls

Academic Paper Search · Papers

Academic Paper Search · api.kadec0.xyz

Academic and scientific paper search API. Search research papers and scholarly literature across arXiv, PubMed, OpenAlex, Crossref, and Semantic Scholar in one call, deduplicated into a ranked result set: title, authors, year, venue, abstract, citation count, DOI, and direct PDF link. Query by keyword or restrict to one source; filter by year range; sort by relevance, recency, or citations. Keyless.

$0.02 Base 100% up 155 paid calls

glim.sh · Twitter Search

glim.sh · surf.cascade.fyi

Search tweets with advanced operators (recommended). Body param is `query` (not q), e.g. {"query":"from:elonmusk AI min_faves:100"}

$0.005 Base 152 paid calls

Vaaya · Firecrawl Scrape

Vaaya · vaaya.ai

Firecrawl — Scrape a single URL and return clean markdown/HTML.

$0.01 Base 100% up 143 paid calls

Flight Search & Airfares · Search

Flight Search & Airfares · flights.use.x402atlas.com

Flight search by departure and arrival airports in the URL — compare live itineraries, fares, schedules, stops and emissions across airlines, similar to Google Flights, as clean JSON.

$0.05 Base 129 paid calls

Latest Cars 2026 · Cars

Latest Cars 2026 · cars2026.vercel.app

Educational briefing on the latest cars in 2026 (powertrains, range, pricing, and what's new).

$0.0011 Base 126 paid calls

Web Search, News & Page Reader · Search

Web Search, News & Page Reader · websearch.use.x402atlas.com

Real-time web search for AI agents — search the web and get ranked SERP-style results as clean JSON: title, URL, snippet, relevance score, optional LLM-generated answer. Find up-to-date information online — latest news, current events, finance. Date, domain and exact-phrase filters.

$0.01 Base 122 paid calls

X402node · WEB Extract

X402node · api.x402node.dev

Structured page extraction — clean markdown plus extracted links and headings as structured data, via managed retrieval with JS rendering. For RAG, crawling and content analysis. web extract, structured extraction, links, headings, markdown, rag, crawling, content analysis Accepts payment on Base or Solana — either network works.

$0.02 Base 100% up 116 paid calls

X402node · WEB Batch

X402node · api.x402node.dev

Batch page fetch — read up to 5 URLs in one call and return clean markdown for each, via managed unlocking with residential routing and JS rendering. For bulk RAG ingestion, multi-source research, crawling and dataset building. batch read, bulk fetch, multi-url, crawler, web scraping, rag ingestion, parallel fetch, dataset building Accepts payment on Base or Solana — either network works.

$0.02 Base 100% up 115 paid calls

X402node · WEB Read

X402node · api.x402node.dev

Read any web page as clean, LLM-ready markdown — managed unlocking with residential IPs, IP rotation, automated CAPTCHA solving and full JavaScript rendering; overcomes blocks. For RAG ingestion, agent browsing and access-controlled pages. web read, fetch page, scrape, markdown, unblock, javascript rendering, rag ingestion, agent browsing Accepts payment on Base or Solana — either network works.

$0.02 Base 100% up 111 paid calls

X402node · Stock CN Index

X402node · api.x402node.dev

China A-share major indices snapshot in one call: Shanghai Composite, Shenzhen Component, ChiNext, and CSI 300 — with price, change, percent change, day range and volume. The whole-market glance Chinese retail investors check every session. A股四大指数一览:上证指数、深证成指、创业板指、沪深300,含最新点位、涨跌、涨跌幅、振幅、成交量,一次调用看全大盘。A株主要指数スナップショット。Panorama de indices bursatiles de China A. Accepts payment on Base or Solana — either network works.

$0.01 Base 100% up 108 paid calls

X402node · WEB Amazon

X402node · api.x402node.dev

Amazon product page fetch — title, price and details as they appear, via managed retrieval that handles bot protection and JavaScript rendering. For price tracking, product research and ecommerce data. amazon, product page, price tracking, ecommerce data, product research, retail, asin Accepts payment on Base or Solana — either network works.

$0.02 Base 100% up 105 paid calls

Apify · Protocols Prepaid Tokens

Apify · agi.apify.com

Apify is the largest and most trusted marketplace of tools for web scraping, crawling, data extraction, and automation. Use these tools, called Actors, to extract structured data from social media, e-commerce sites, search engines, maps, travel sites, or any other website. Turn the open web into a real-time data source for your research, lead generation, and monitoring.

$1.00 Base 100% up 105 paid calls

Browser render · Render

Browser render · agent402.tools

Render a page in a real headless Chromium browser (JavaScript executed) and return its main content as clean markdown. Use it for single-page apps and JS-heavy sites where a plain fetch returns an empty shell.

$0.02 Base 100% up 93 paid calls

Open Web Search · WEB Search

Open Web Search · x402-echo-service.onrender.com

Web search for agents. POST a JSON body with a "query" string and an optional "limit" (1-20); returns ranked results, each with a title, url and text snippet. Keyword and semantic matching, no API key required, billed per call: $0.001000 USDC.

$0.001 Base 89 paid calls

Market Intelligence · Market Intel

Market Intelligence · x402-endpoints.onrender.com

AI market intelligence report in one call for research and trading agents: cross-exchange perp derivatives (funding, open interest, long/short), fused directional signals and the euro-area macro snapshot (ECB inflation, policy rates, unemployment, EUR FX) synthesized into a headline, crypto and macro outlook, key signals, risks and opportunities. Multi-source market research report with a crypto + macro/EU lens.

$0.10 Base 76 paid calls