x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| — | orderbook-depth orderbook-depth.api.klymax402.com Uniswap V3 liquidity depth analysis -- price impact at 1/2/5/10% levels. Slippage estimation pre-trade. | Data | Base | $0.00 | 0 | 0 |
| — | organiccryptoyyc.com organiccryptoyyc.com Multi-Region Verification & On-Chain Data API | Utility | Base, Solana | $1.92 | 42 | 2 |
| — | Origin Protocol origin-exchange.fly.dev Trust-gated agent economy on Base mainnet. Agents earn Birth Certificates through adversarial gauntlets, build reputation through quests, and access… | AI | Base | $0.00 | 0 | 0 |
| — | Origin Protocol origin-mcp.fly.dev Base Intelligence MCP | Data | Base | $0.00 | 0 | 0 |
| — | OrionCMD Checks orioncmd-checks-mcp.dario-9fa.workers.dev OrionCMD Checks: Certificate status from CT logs + live HTTPS probe. Issuer, validity, days left, % of lifetime used, renewal cadence and a renewal-stall… | Other | $0.00 | 0 | 0 | |
| — | orionkr orionkr.xyz Chain infrastructure APIs for Robinhood Chain routing, Base swap safety, x402 agent commerce, and trade policy evaluation. | Chain infra | Base | $0.00 | 0 | 0 |
| — | Orizn Visa API orizn.app Visa requirements, fees, embassies, transit rules and 26 more data points for every passport / destination pair in the world — in 15 languages. | Data | Base | $0.03 | 1 | 1 |
| — | OSHA Inspection Search API osha-search.46-224-157-88.sslip.io Look up U.S. OSHA workplace inspections by establishment or company name. With no filters, return the newest inspections first. Use establishment, state… | Search | Base | $0.00 | 0 | 0 |
| — | OSHA Inspection Search API osha-search.krimskrams.xyz Look up U.S. OSHA workplace inspections by establishment or company name. With no filters, return the newest inspections first. Use establishment, state… | Search | Base | $0.00 | 0 | 0 |
| — | otaku.so otaku.so A service hosted at otaku.so with no documented endpoints or capabilities. | Other | Base | $0.00 | 0 | 0 |
| — | otomo-world-id.vercel.app otomo-world-id.vercel.app An API service hosted at otomo-world-id.vercel.app. | Other | $0.00 | 0 | 0 | |
| — | outbid outbid.sh Fallback next URL for agents. GET /top then GET /route. Rank is the bid. Auth: none — the payment is the auth (x402). Not a directory. No /call. | AI | Base, Solana | $0.00 | 0 | 0 |
| — | OutcomeScout outcomescout.vercel.app Paid x402 endpoint that maps a news headline to top tradeable Polymarket prediction markets. | AI | Base | $0.02 | 2 | 3 |
| — | overhang overhang.ochinimus.app Provides exit capacity information for chain infrastructure. | Chain infra | Solana | $0.00 | 0 | 1 |
| — | ox-alpha-service oxalpha-x402.val.run Paid micro-APIs for AI agents, native x402 protocol (USDC over HTTP 402). Unauthenticated calls receive HTTP 402 with payment requirements; a compliant client… | AI | Base | $0.002 | 2 | 2 |
| — | OyaPicks Prediction Market Data oyapicks.app Pay-per-request prediction market data for AI agents. Normalized live markets from Polymarket and Alpha Arcade: prices, volume, movers, arbitrage gaps… | Search | Base | $0.51 | 13 | 4 |
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