x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| — | SFtunes tapes for agents sftunes.com Hand-made music curation from real people: public tapes and public Top 10 lists with per-track liner notes and canonical music-service links. Paid endpoints… | Data | Base | $0.08 | 8 | 7 |
| — | 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 |
| — | Shared Hold API shared-hold-api.onrender.com SQLite-backed shared boundary storage for AI agents. POST /hold stores a UTF-8 payload (paid: 0.005 USDC). GET /hold/{id} retrieves by holdid (free). GET… | AI | Base | $0.00 | 0 | 0 |
| — | shelf-production-43b5.up.railway.app shelf-production-43b5.up.railway.app Provides paid queries for the current block height on the Sepolia network. | Data | $0.00 | 0 | 0 | |
| — | shelf.thirdmade.net shelf.thirdmade.net A data service providing paid probing, verification, lookup, generation, analysis, and security endpoints. | Data | Base | $0.00 | 0 | 0 |
| — | ShellPermit shellpermit.schemasure.com ShellPermit tokenizes a candidate bash command — quoting, escaping, pipelines, command and process substitution, heredocs, redirections — walks the result… | AI | Base | $0.00 | 0 | 0 |
| — | ShieldAPI vainplex.dev x402-native security intelligence API for AI agents. Use ShieldAPI as the paid security/trust preflight before an agent pays, connects to MCP, installs… | AI | Base | $0.026 | 13 | 9 |
| — | 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 |
| — | Reloadpi Catalog API shoppi-backend.onrender.com Global marketplace for digital vouchers, mobile top-ups, and eSIM data plans. Pay per API call with USDC on Base via x402. No account or KYC required. | Data | Base | $0.00 | 0 | 0 |
| — | HALOWERK sicherwerk sicher.halowerk.com HALOWERK sicherwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet. | Chain infra | Base | $0.00 | 0 | 0 |
| — | Sigma Market Intelligence sigma-api-oracle.tailae0cf3.ts.net Provides ranked, governed capability intelligence for autonomous agents. | AI | $0.00 | 0 | 0 | |
| — | Sigma Market Intelligence sigma-api-oracle.tailae0cf3.ts.net This service provides an API host with no documented endpoints. | Data | $0.00 | 0 | 0 | |
| — | Trading Intelligence API signal-engine-production-d88d.up.railway.app Provides cryptocurrency trading intelligence based on RSI, VWAP, and EMA strategy signals. | Data | Base | $0.00 | 0 | 0 |
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