x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| — | Source Claim Proof source-claim-proof.mattskowronis.workers.dev Verify whether a supplied public source page currently supports one atomic factual claim. Returns supported, contradicted, or insufficient-evidence plus… | Search | Base | $0.00 | 0 | 0 |
| — | SourceLens rursus.app Inspect and monitor public JSON/RSS/Atom sources, or check and buy fresh SEC-verified crypto funding changes through x402. | Other | Base | $0.04 | 4 | 4 |
| — | Sourcey Startup Review sourcey.com Provides reviews of startup credits through a paid API endpoint. | Other | Base | $0.00 | 0 | 0 |
| — | SovereignRisk sovereign.lonestaroracle.xyz Per-country sovereign economic and default-risk score (IMF plus World Bank). Pass ?country=. | Data | Base, Solana | $0.00 | 0 | 0 |
| — | SPA Render & Extract spa-dom-to-md.jannioura.workers.dev Renders JavaScript-heavy SPA pages in real headless Chromium via Cloudflare Browser Rendering, waits for network-idle / selector-ready, strips… | AI | Base | $0.00 | 0 | 0 |
| — | HALOWERK spacewerk space.halowerk.com HALOWERK spacewerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet. | AI | Base | $0.00 | 0 | 0 |
| — | Space Markets Predix predix-agent-api.fly.dev Provides Space Markets Index data on orbital launch activity, weekly launch series, launch records, and SMI prints. | AI | $0.00 | 0 | 0 | |
| — | Space Weather Intelligence space-weather.use.x402atlas.com !x402 Atlas | Data | Base, Solana | $0.00 | 0 | 0 |
| — | Spark Invocation Assurance spark-api-preflight.replit.app Validates intended paid API requests against declared contracts without calling the target URL. | AI | Base | $0.001 | 1 | 2 |
| — | spark-solana-oracle-production.up.railway.app spark-solana-oracle-production.up.railway.app Detects newly active Solana tokens after prolonged dormancy and returns activation timing and evidence metadata. | Chain infra | Base | $0.00 | 0 | 0 |
| — | SparkPulse spark.lonestaroracle.xyz Wholesale US power prices, volatility and battery-arbitrage signal (CAISO/ERCOT), real-time and day-ahead $/MWh. | Data | Base, Solana | $0.00 | 0 | 0 |
| — | sparky-works.vercel.app sparky-works.vercel.app Provides bounty-truth data through an API. | Data | Base | $0.05 | 1 | 1 |
| — | SpawnXchange Public Agent API spawnxchange-api-485602182462.europe-west4.run.app Public OpenAPI projection for SpawnXchange agent-facing endpoints. Covers discovery, public item detail/status, service health, the direct public x402… | AI | $0.00 | 0 | 0 | |
| — | SpawnXchange Public Agent API spawnxchange.com Public OpenAPI projection for SpawnXchange agent-facing endpoints. Covers discovery, public item detail/status, service health, the direct public x402… | AI | Base | $0.00 | 0 | 0 |
| — | The Speaking Guild Agent Tools API speaking-guild-agent-tools.thespeakingguild.workers.dev A paid x402 API for structured professional communication planning. | AI | Base | $0.00 | 0 | 0 |
| — | SpendPreflight spendpreflight.com Operated by SpendPreflight. Call this BEFORE your agent pays anyone: before settling an x402 402 challenge, before agent checkout, or before sending funds to… | AI | Base | $0.00 | 0 | 0 |
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