x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| — | UK Company Check uk-company-check.fly.dev Official UK company data and due-diligence checks from Companies House, built for AI agents. Answer 'is this UK company legit / safe to deal with?' in one… | Search | Base | $0.028 | 2 | 3 |
| — | Umpire API umpire.vimabrosta.com Signed verdicts on deliverables and payment verified reputation for AI agent commerce. Paid routes use x402: HTTP 402 with exact requirements, then retry with… | Utility | Base, Solana | $0.00 | 0 | 0 |
| — | _done Gateway underscoredone.com done - Actions for AI. Real-world tasks your agent can't do alone. Pay per use - no accounts. no logins. no keys. | Media | Base, Solana | $0.00 | 0 | 0 |
| — | Unicode unicode.openverbs.com Inspect Unicode code points and look up characters by name, block or script over a Unicode Character Database subset. Handles algorithmic CJK, Tangut and… | Chain infra | Base | $0.00 | 0 | 0 |
| — | Unique ID generator (UUID) agent402-deploy-production.up.railway.app UUIDs on demand: version 4 (random) or version 7 (time-ordered, sortable), up to 100 per call. Use it when an agent needs identifiers for records, requests or… | AI | Base | $0.00 | 0 | 1 |
| — | Unique Identifiers (UUID + ULID) id.openverbs.com Generate and inspect unique identifiers in one place. uuid mints RFC 4122/9562 UUIDs (v4 random, v7 time-ordered); inspect parses a UUID's version, variant… | Search | Base | $0.00 | 0 | 0 |
| — | Unit Converter unit.openverbs.com Convert between physical and digital units — length, mass, volume, temperature, speed, pressure, energy, power, storage, time, angle and more. | Utility | Base | $0.00 | 0 | 0 |
| — | Unlisted unlisted.sh Find out why your x402 endpoint isn't listed in the Coinbase CDP Bazaar. Checks CDP's own live index status, and in paid mode makes a real test payment to… | Data | Base | $0.02 | 1 | 1 |
| — | URL & Domain Trust urltrust.openverbs.com Trust and phishing analysis for a link or a domain. analyze runs offline lexical phishing checks on a URL (IP hosts, embedded credentials, punycode, brand… | Data | Base | $0.00 | 0 | 0 |
| — | Website URL Extractor url-extractor.x402.paysponge.com Pay-per-call API that extracts every URL from a website by parsing its sitemap. Pass a domain or sitemap URL; receive up to 50,000 URLs with optional… | AI | Base, Solana | $0.00 | 0 | 0 |
| — | MCPFax URL Intelligence url-intel.bowling-anthony.workers.dev What is really behind a URL: the full redirect chain, what the server says about itself, and the pages a site publishes. Pay per call in USDC on Base via x402. | Data | Base | $0.00 | 0 | 0 |
| — | url-oracle url-oracle.fly.dev Checks whether a URL/domain is safe to fetch, cite, or follow: flags phantom-squatted or typosquatted brand domains, unregistered or brand-new domains, and… | AI | Base | $0.00 | 0 | 0 |
| — | url-risk-analyzer.pdfextractapi.workers.dev url-risk-analyzer.pdfextractapi.workers.dev Analyzes URLs for potential risk. | Data | Base | $0.00 | 0 | 0 |
| — | URL Safety safe.cyberwarex.com Pay-per-call URL / phishing safety check for AI agents: score a link for phishing risk from keyless deterministic heuristics (typosquat/homoglyph, punycode… | AI | Base | $0.00 | 0 | 0 |
| — | URL Toolkit url.openverbs.com WHATWG URL parsing and manipulation — parse into components, normalize/canonicalize, resolve references against a base, and parse/build query strings. | Search | Base | $0.00 | 0 | 0 |
| — | URL Uptime Checker url-uptime-checker.underscoredone.com Checks whether a website or web address is currently reachable and reports how fast it responded. | Other | Base, Solana | $0.00 | 0 | 0 |
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