x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| — | x402 Used Car QuickCheck x402-used-car-quickcheck-production.up.railway.app Agent-ready used-car valuation and purchase intelligence with x402 payments on Base and Solana Mainnet. | AI | Base, Solana | $0.00 | 0 | 0 |
| — | x402-markdown-extractor valkyry.fr Pay-per-call micro-APIs for AI agents — USDC on Base via the x402 protocol. 12 endpoints: web content extraction, metadata, RSS, PDF, QR, format conversion… | Chain infra | Base | $0.001 | 1 | 1 |
| — | Ink Vault Savings Service x402-vault-service.vercel.app A savings account for AI agents. One x402 payment deposits USDC into a live, market-tested yield vault ($30M+ TVL); another withdraws it back out — no gas, no… | Chain infra | Base | $1.02 | 2 | 2 |
| — | x402 Video Gateway x402video.com Pay-per-call AI video generation over the x402 payment protocol. No accounts, no API keys, no credit cards: HTTP 402 - pay USDC on Base - generate. Prompts… | Data | $11.27 | 6 | 1 | |
| — | Japanese game industry x402-watcher-api-main.jpgame-intel.workers.dev daily market intelligence | Data | Base | $0.36 | 18 | 2 |
| — | x402.whisperbox.my.id x402.whisperbox.my.id Provides currency rate conversion through a paid API endpoint. | Other | Base | $0.14 | 14 | 4 |
| — | Yodeler Data API yodeler.xyz Query forwarded real-time news message logs from the database. | Data | $0.01 | 1 | 1 | |
| — | x402check x402check.xyz Pre-payment risk checks for x402 agents and wallets: OFAC SDN, phishing and drainer feeds, a live watch of drainer infrastructure, transaction simulation and… | Data | Base, Solana | $0.249 | 15 | 4 |
| — | x402donghang Crypto Radar and agent APIs x402donghang.duckdns.org Provides crypto radar and agent APIs for chat, summaries, briefs, and token due diligence. | AI | Base, Solana | $0.00 | 0 | 0 |
| — | x402engine API x402engine.app Pay-per-call API gateway for AI agents using HTTP 402 payments. | Media | Base, Solana | $0.00 | 0 | 0 |
| — | x402payswap.vercel.app x402payswap.vercel.app Provides paid access to a premium API endpoint using USDC. | AI | Base | $0.03 | 3 | 2 |
| — | x402stock x402stock.xyz Market and economic data for AI agents — US stocks, ETFs and options, forex, crypto and on-chain perps, energy commodities (crude, natural gas, gasoline), US… | Data | Base | $0.00 | 0 | 0 |
| — | x721.dev x721.dev Provides paid access to roadmap information through an API. | Other | Base | $0.02 | 2 | 2 |
| — | Xcatcher xcatcher.top Provides a paid API for crawling web content. | Search | Base | $0.04 | 4 | 3 |
| — | xx402.vercel.app xx402.vercel.app Provides paid weather data through an HTTP endpoint. | Data | Base | $0.006 | 6 | 5 |
| — | TRDEFI Liquidity API trdefi.com Public, read-first API over the open liquidity catalogue that TRDEFI normalises, plus a prepare-only write path for integrators holding a key. | Other | Base | $0.02 | 1 | 1 |
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