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The service's listing describes it this way: Web search results (SERP). Keyless web search returning ranked title, URL, and snippet for a query — with locale/region targeting, freshness filters (past day, week, month, year), pagination, a news mode that adds publish date and source, and selectable backend engine (auto rotation, or pin Brave, Yahoo, or Yandex). Website
A service is a tool an AI agent pays to call. Web Search (SERP) is listed on this page under Search, settling on Base, through x402. 30-day settled volume on this page is $2.40. The listing comes from the service catalog. Open a row for payments, payers, and chains. See Bazaar, agent payment use cases, and the methodology.
FacilitatorsCoinbase
Methodology · settled volume through 2026-10-25 · catalog Oct 25, 2026, 1:39 AM UTC
| Metric | 24h | 7d | 30d |
|---|---|---|---|
| Volume | $2.05 | $2.40 | $2.40 |
| Payments | 170 | 198 | 198 |
| Payers | 35 | 1 | 1 |
| Avg payment | $0.0121 | $0.0121 | $0.0121 |
| Share of Search | 2.5% | 2.5% | 2.4% |
| Use-case rank | #5 | #7 | #7 |
Payers can be counted more than once when they paid through more than one facilitator.
Data through Oct 25, 2026. Since Oct 24. Earlier days in this range settled under $1. Source: public settlement logs. Methodology
| Time | Daily settled volume for Web Search (SERP) |
|---|---|
| 2026-10-24 | $2.08 |
| 2026-10-25 | $0.00 |
| Time | Daily buyers for Web Search (SERP) |
|---|---|
| 2026-10-23 | 1 |
| 2026-10-24 | 16 |
100.0%
Top payer's share of lifetime volume. Not the period selected above.
100.0%
Lifetime buyers with more than one payment, divided by all buyers.
Price, network, and asset come from the x402 Bazaar catalog.
| Endpoint | Network | Asset | Price | Scheme |
|---|---|---|---|---|
| https://api.kadec0.xyz/v1/serp Web search results (SERP). Keyless web search returning ranked title, URL, and snippet for a query — with locale/region targeting, freshness filters (past day, week, month, year), pagination, a news mode that adds publish date and source, and selectable backend engine (auto rotat | base | USDC | $0.05 | exact |
| https://api.kadec0.xyz/v1/papers 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 | base | USDC | $0.02 | exact |
| https://api.kadec0.xyz/v1/hackernews Hacker News feed. Top, new, and best front-page stories plus full-text story search — titles, scores, comment counts, and author for tech and startup news. | base | USDC | $0.01 | exact |
| https://api.kadec0.xyz/v1/domain-info Domain WHOIS and DNS lookup. Registrar, creation and expiry dates, nameservers, and full DNS records (A, AAAA, MX, NS, TXT, CNAME) for a domain. | base | USDC | $0.02 | exact |
| https://api.kadec0.xyz/v1/trend Google Trends interest over time for a keyword. Returns Google Trends search interest as a dated series indexed 0-100: weekly points across the default past 12 months, daily points for 30- and 90-day windows, and windows from the past hour back to 2004, with optional country targ | base | USDC | $0.05 | exact |
| https://api.kadec0.xyz/v1/cve CVE vulnerability lookup. Returns security vulnerability records by CVE id or keyword from the NIST National Vulnerability Database and GitHub Security Advisories, each with CVSS score, severity, CWE weakness class, affected products, and references, filterable by severity and so | base | USDC | $0.01 | exact |
| https://api.kadec0.xyz/v1/weather Weather forecast and air quality for any location worldwide. Returns current conditions plus a 16-day daily weather forecast - temperature highs and lows, precipitation, and wind - alongside air-quality readings including AQI, PM2.5, PM10, and ozone, for any latitude and longitud | base | USDC | $0.005 | exact |
| https://api.kadec0.xyz/v1/smart-search Smart, auto-routed research paper search. A broad field term is grounded against the OpenAlex taxonomy and returned as a coherent field cluster; a natural-language question runs hybrid retrieval over OpenAlex and Semantic Scholar with reciprocal rank fusion and a SPECTER2 embeddi | base | USDC | $0.02 | exact |
| https://api.kadec0.xyz/v1/whois-bulk Bulk WHOIS lookup. Registrar, dates, and nameservers for up to 10 domains in a single batch call. | base | USDC | $0.05 | exact |
| https://api.kadec0.xyz/v1/github GitHub data. Repository stats, user profiles, and code-search results (stars, forks, language, topics, issues) via the GitHub REST API. | base | USDC | $0.02 | exact |
| https://api.kadec0.xyz/v1/email-validate Email validation and email list cleaning. Checks each email address for RFC syntax, a live MX record lookup returning the real mail hosts, disposable-domain detection, role-account flags (info@, sales@, noreply@), and a free-provider flag, rolled into a per-address ok/risky/inval | base | USDC | $0.03 | exact |
| https://api.kadec0.xyz/v1/token-price Crypto token price and market data. Returns the live price of one or many tokens by coin id or ticker symbol, in a chosen vs-currency, with market cap, 24-hour volume, and 24-hour price change. For crypto price lookups, portfolio valuation, and market data feeds. Keyless, via Coi | base | USDC | $0.01 | exact |
| https://api.kadec0.xyz/v1/serp-read Web search plus page reading in one call: answer with sources. Runs a web search, scrapes the top results, and returns the ranked search results together with each page's content as clean LLM-ready markdown, so an agent gets the SERP AND the underlying text without a second round | base | USDC | $0.08 | exact |
| https://api.kadec0.xyz/v1/related-papers Literature review and related-paper discovery. Given a seed paper (arXiv id, DOI, or OpenAlex id) or a topic query, returns semantically similar and recommended scholarly papers to expand a reading list or systematic review, via Semantic Scholar recommendations with an OpenAlex r | base | USDC | $0.03 | exact |
| https://api.kadec0.xyz/v1/congress-trades US congressional stock trades. Stock transactions disclosed by members of the House and Senate under the STOCK Act — politician, ticker, amount, and date. | base | USDC | $0.05 | exact |
| https://api.kadec0.xyz/v1/geocode Geocoding and reverse geocoding. Converts an address or place name to latitude/longitude, or coordinates back to an address. | base | USDC | $0.01 | exact |
| https://api.kadec0.xyz/v1/related-queries Google Trends related queries for a keyword. Returns the searches people run alongside a keyword in a given country: top queries scored 0-100 relative to each other, and rising queries with their percentage growth. Google Trends keyword expansion for SEO keyword research, content | base | USDC | $0.03 | exact |
| https://api.kadec0.xyz/v1/defi-tvl DeFi TVL for protocols and chains. Returns total value locked per DeFi protocol or per chain via DefiLlama, with category, supported chains, and TVL change over time, filterable by category or chain. For DeFi protocol screening, chain-level TVL comparison, and tracking where liqu | base | USDC | $0.02 | exact |
| https://api.kadec0.xyz/v1/market-sentiment Market fear & greed index. Aggregated investor sentiment from CNN Fear & Greed, the crypto Fear & Greed index, and the VIX volatility gauge. | base | USDC | $0.05 | exact |
| https://api.kadec0.xyz/v1/trending-coins Trending crypto coins. The coins most searched on CoinGecko right now, with rank, price, and market-cap rank. | base | USDC | $0.01 | exact |
| https://api.kadec0.xyz/v1/interest-by-region Google Trends interest by region for a keyword. Returns the subregional breakdown of Google Trends search interest inside a country - by state, province, or region - each ranked 0-100 relative to the strongest region. For regional demand mapping, geo targeting, and finding where | base | USDC | $0.03 | exact |
| https://api.kadec0.xyz/v1/serp-batch Bulk web search: up to 5 search queries in a single call, each returning ranked title, URL, and snippet, with the same locale, freshness, and news filters as the single-query web search. One paid call instead of five for research fan-out. | base | USDC | $0.10 | exact |
| https://api.kadec0.xyz/v1/paper-details Citation lookup and reference list for a paper. Given a DOI, arXiv id, OpenAlex id, or PMID, returns its references (the works it cites) and its cited-by list (recent works that cite it), plus full metadata and citation count — for bibliography building and citation lookup. Keyle | base | USDC | $0.03 | exact |
| https://api.kadec0.xyz/v1/permits Building permit records. Construction and building permits across Chicago, NYC, Seattle, and San Francisco — type, status, address, cost, and issue date. | base | USDC | $0.03 | exact |
| Facilitator | Volume | Tx | Share |
|---|---|---|---|
| Coinbasex402 | $2.36 | 195 | 100.0% |
Agent GDP. (2026). Web Search (SERP) [Data set]. Retrieved October 25, 2026, from https://agentgdp.io/service/api.kadec0.xyz.
"Web Search (SERP)." Agent GDP, 25 Oct. 2026, https://agentgdp.io/service/api.kadec0.xyz.
@misc{agentgdp_web_search_serp_2026,
author = {{Agent GDP}},
title = {Web Search (SERP)},
year = {2026},
url = {https://agentgdp.io/service/api.kadec0.xyz},
note = {Retrieved October 25, 2026. Data through 2026-10-25. Licensed under CC BY 4.0.},
license = {https://creativecommons.org/licenses/by/4.0/}
}Web Search (SERP): $2.40 settled volume (7d), 198 payments, 1 buyers. Agent GDP, data through 2026-10-25. https://agentgdp.io/service/api.kadec0.xyz Retrieved October 25, 2026.
Data from Agent GDP (https://agentgdp.io/service/api.kadec0.xyz), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
Payers on a day can be counted more than once if they paid through more than one facilitator. Growth compares this period with the previous period of the same length. The page link uses the service's site when we have one, and the payee address otherwise.
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Volume and payment counts include earlier days. Transaction-level detail available from October 23, 2026.