x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| — | SEC EDGAR Terminal secedgarterminal.com Free public research APIs and eleven paid machine products, including company disclosure topic packets and same-quarter legal-bank capital, credit and funding… | Data | Solana | $0.00 | 0 | 0 |
| — | SEC Filings & Financials sec.use.x402atlas.com !x402 Atlas | Data | Base, Solana | $0.00 | 0 | 0 |
| — | Second Opinion second-opinion-production.up.railway.app Adversarial verification for AI agents, paid per verdict via the x402 protocol (USDC on Algorand, Base, Polygon, Solana). No accounts or API keys: pay per… | Data | Base, Solana | $0.00 | 0 | 0 |
| — | Second Opinion secondopinionx402.com Adversarial verification for AI agents, paid per verdict via the x402 protocol (USDC on Algorand, Base, Polygon, Solana). No accounts or API keys: pay per… | Data | Base, Solana | $0.00 | 0 | 0 |
| — | Selun sagitta.systems Sagitta AAA Portfolio Infrastructure | AI | Base, Solana | $0.00 | 0 | 0 |
| — | semagram.io semagram.io Profile details and latest posts of named Telegram channels, groups, and bots, read live | Search | Base, Solana | $0.03 | 3 | 1 |
| — | SeniorPulse seniorpulse.theaslangroupllc.com Global elder care intelligence API. AI-synthesized Medicare/pension guidance, care facility evaluation, medication safety, benefits discovery, and caregiver… | AI | Base, Solana | $0.00 | 0 | 0 |
| — | SEO Data Extractor seo-data-extractor.underscoredone.com Give this API a web address and it will visit that page, then hand back everything an SEO professional needs to know: the page title, meta description, meta… | Data | Base, Solana | $0.00 | 0 | 0 |
| — | sephora.x402.fi sephora.x402.fi An x402 service hosted at sephora.x402.fi. | Chain infra | Solana | $0.00 | 0 | 0 |
| — | serp402 serp402.com Google search for agents, paid per call over x402: USD 0.005 in USDC, no API key. Results are retrieved through Serper (serper.dev), which is not affiliated… | AI | Base, Solana | $0.00 | 0 | 0 |
| — | service402api-production.up.railway.app service402api-production.up.railway.app An x402 service with no documented endpoints. | Other | Solana | $0.00 | 0 | 0 |
| — | Sidera shadowharness.com Sidera agent guide: https://shadowharness.com/sidera/llm/ Start with the overview, then follow the sample, pricing and ordering sections. Turn supported… | AI | Base, Solana | $3.40 | 10 | 3 |
| — | ShieldForm shieldform.waltsoft.net Invisible bot protection. Score form submissions 0-100 based on behavioral signals. No CAPTCHAs. | Data | Base, Solana | $0.00 | 0 | 0 |
| — | shop.blocklabs.nl blocklabs.nl Provides paid product catalog search, taxonomy data, shipping options, and tax information. | Search | Base, Solana | $0.00 | 0 | 0 |
| — | Shopify AI Rank Checker shopify-ai-rank-checker.underscoredone.com Checks how well a Shopify store's products show up when AI shopping assistants such as ChatGPT, Gemini, Perplexity, Grok, and Copilot search for products, and… | AI | Base, Solana | $0.00 | 0 | 0 |
| — | ShopperPulse shopperpulse.theaslangroupllc.com POST a shopping list (up to 3 items, free text or structured) and Birdie runs a full personal-shopper trip: 3 best-fit picks per item plus a stacked savings… | AI | Base, Solana | $0.00 | 0 | 0 |
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