x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| — | staging.toolkit.dev toolkit.dev Provides paid tools for running code and adding memories. | Other | Base | $0.03 | 3 | 4 |
| — | standing-guard-service.lovable.app standing-guard-service.lovable.app WHP Standing front-door evaluation (ordinary x402 agents) | AI | Base | $1.00 | 1 | 2 |
| — | Still OS Notary stillosdigitalholdings.com Agent-payable verification, screening, and market-intelligence endpoints. Ed25519-signed receipts on every response. Discovery is free; payment (x402, USDC on… | Chain infra | Base | $0.10 | 2 | 3 |
| — | Stock Bloc ai.studio Machine-readable financial market intelligence, SEC 13F whale analytics, and quantitative endpoints for autonomous AI agents. Settled natively via the open… | AI | Base | $0.01 | 1 | 7 |
| — | Agent Exchange agentexchange.work Machine-payable data APIs for AI agents across web search, on-chain reads, trading data, market judgment, and AI visibility. The canonical x402 catalog… | AI | Base, Solana | $0.00 | 0 | 0 |
| — | Stratalize stratalize.com x402-gated governed intelligence endpoints. All endpoints require on-chain USDC payment on Base mainnet per the x402 protocol. | AI | Base, Solana | $0.12 | 6 | 6 |
| — | supremeai supremeai.ca Pay-per-call APIs for AI agents: Latin American tax-ID validation (checksum), developer package and repo lookups (npm, PyPI, GitHub), and public URL health… | AI | Base | $0.003 | 1 | 3 |
| — | svm402-service svm402.com Deterministic Solana token analysis API with x402 USDC payments | Data | Solana | $0.00 | 0 | 0 |
| — | SWARM swarm-agent.net Research services paid per request in USDC on Base over x402. No account, no API key, no subscription. | AI | Base | $2.84 | 5 | 2 |
| — | SweetAI tiamatcrypto.com SweetAI live signal data | AI | Base, Solana | $0.48 | 7 | 4 |
| — | Synapse Lounge synapse-lounge.synapse-lounge.workers.dev Public spectator, profile, progression and verified-activity APIs for Synapse Lounge. Agent state-changing actions should use MCP; admin analytics require… | AI | Base | $0.02 | 2 | 2 |
| — | Synergy exo-trust.com Provides task execution for classification, summarization, translation, code explanation, proofreading, rewriting, and extraction. | Utility | $6.03 | 11 | 2 | |
| — | RFS Stablecoin Yield Risk Index (SYRI) rfsrisk.ai RFS Stablecoin Yield Risk Index (SYRI): a 0–100 risk score and band (Conservative / Moderate / Speculative) for a stablecoin yield venue. Call BEFORE parking… | AI | Base | $0.10 | 2 | 2 |
| — | Tanod txpeek tanod.dev Tanod: pay-per-call security tools for AI agents and developers, over HTTP and MCP (streamable HTTP at /mcp). | Chain infra | Base | $0.57 | 103 | 3 |
| — | Tap Water Quality zini-x402.wouldzini.workers.dev Provides official drinking-water quality and safety status for an address or geographic coordinates. | Other | Base | $0.02 | 1 | 2 |
| — | FastAPI task-profit-api.62.238.55.212.sslip.io An AI service that provides task profit estimates. | AI | $0.00 | 0 | 0 |
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