x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| — | SpendPreflight payee-check.payee-check.workers.dev Spend preflight for AI agents. Send the x402 PaymentRequired body (v1 or v2) you received, or a cart, plus optional rules (per-payment max, hold threshold… | AI | Base | $0.03 | 2 | 1 |
| — | splitpack.net splitpack.net Split a vague job into five runnable steps | Search | $0.00 | 0 | 0 | |
| — | Sports Predictor sports-predictor-api.fly.dev AI-powered sports betting analysis | Data | Base | $0.16 | 8 | 3 |
| — | Spreadsheet Modification & Audit sheets.api.williamrobinson.dev Apply cell and named-range edits to an .xlsx, recalculate it with a real spreadsheet engine, and return the modified workbook alongside a dependency-impact… | Other | Base | $0.00 | 0 | 0 |
| — | Spreadsheet References spreadsheet.openverbs.com A1 / R1C1 cell-reference arithmetic — convert A1 references to row/column coordinates and back, translate column letters to indices, and parse A1 ranges into… | Utility | Base | $0.00 | 0 | 0 |
| — | SQLGuard Instant Cert sqlguard.io AI agents need permission before they modify production data. Authorization Receipt + Gateway (invoice primary $299/mo). Wealth Exact: Pilot Challenge POST… | Utility | Base | $0.40 | 4 | 4 |
| — | SQLPermit sqlpermit.schemasure.com SQLPermit parses a candidate statement with PostgreSQL's own grammar (libpg-query, PG 18), walks the syntax tree, and reports whether it complies with the… | AI | Base | $0.00 | 0 | 0 |
| — | SqueezeSignal squeeze.lonestaroracle.xyz Short-squeeze setup signal from short-percent-float, days-to-cover and momentum. Pass ?ticker=. | Data | Base, Solana | $0.00 | 0 | 0 |
| — | SRI sri-test.biz MCP Server Inspector | Other | Base | $0.00 | 0 | 0 |
| — | x402-token · Solana on-chain data (pay-per-call) srv1333421.hstgr.cloud Live Solana token supply, top-holder concentration, and wallet balances for AI agents. Pay per call in USDC via the x402 standard. | Data | Solana | $0.00 | 0 | 0 |
| — | SSL/TLS Certificate Check ssl.use.x402atlas.com !x402 Atlas | Chain infra | Base, Solana | $0.00 | 0 | 0 |
| — | StableEnrich stable-enrich-anncfzk3u-merit-systems.vercel.app Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | Search | Base, Solana | $0.00 | 0 | 0 |
| — | StableEnrich stable-enrich-ecdu27dk1-merit-systems.vercel.app Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | Search | Base, Solana | $0.00 | 0 | 0 |
| — | StableEnrich stable-enrich-git-fix-stableenrich-exa-api-schema-merit-systems.vercel.app Pay-per-request access to Apollo, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | Search | Base | $0.00 | 0 | 0 |
| — | StableEnrich stable-enrich-git-payai-solana-facilitator-merit-systems.vercel.app Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | Chain infra | Base, Solana | $0.00 | 0 | 0 |
| — | StableEnrich stable-enrich-git-shafu-stableenrich-peopl-a13b22-merit-systems.vercel.app Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | Search | Base, Solana | $0.00 | 0 | 0 |
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