x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| #161 | VAT & IBAN Validation API eucompliance.tools Public HTTP and x402 interfaces for agent infrastructure, market decisions, AgentLLM inference, EU compliance and US import-readiness. MCP tool errors and… | Data | Base, Solana | $0.245 | 41 | 18 |
| #162 | Ontario Protocol Buyer API ontarioprotocol.com Ontario Protocol is a free-first x402 verification and discovery API for autonomous agents, wallets, MCP hosts, and paid-API registries. Verify a paid… | Search | Base | $5.71 | 14 | 8 |
| #163 | API Acre apiacre.com Machine-discoverable web, document, data, developer, research, and EVM utilities. Every paid POST returns structured JSON and uses x402 v2 exact USDC… | Data | Base, Solana | $0.252 | 53 | 25 |
| #164 | InsumerAPI insumermodel.com InsumerAPI is the API for wallet auth — the primitive: read on-chain state, evaluate against caller-supplied conditions, return ECDSA-signed booleans across… | AI | Base, Solana | $3.25 | 33 | 7 |
| #165 | SwapHunt x402 API swaphunt.dev Pay-per-call crypto market data. No API key — agents pay in USDC via the x402 protocol. See https://x402.org. | Data | Base | $0.194 | 84 | 14 |
| #166 | Node4All Production API api.node4all.com OpenAPI specification for Node4All production endpoints. | Utility | Base | $0.044 | 13 | 10 |
| #167 | penny402 penny402.fun Small, self-contained, instantly-answered attractions for agents, each a flat $0.0025 in USDC on Base or Solana. No account and no API key: an unpaid POST… | AI | Base, Solana | $0.0825 | 33 | 13 |
| #168 | api.messari.io messari.io Provides cryptocurrency asset, market, exchange, funding, token unlock, and investor signal data through API endpoints. | Data | Base, Solana | $71.25 | 366 | 17 |
| #169 | 402utils 402utils.com pay-per-call API utilities | Data | Base | $0.135 | 74 | 19 |
| #170 | wAILand Disaster Signals wailand.tailf99551.ts.net Provides pay-per-call access to disaster events and opportunities through an x402 API. | AI | Base | $0.302 | 16 | 7 |
| #171 | Crypto ETF Sentinel API cryptoetfsentinel.com Programmatic access to SEC EDGAR spot crypto ETF filing data (including staking ETFs). Covers 100+ curated issuers, 3,000+ filings, 30+ cryptocurrencies, and… | Data | Base, Solana | $6.74 | 50 | 9 |
| #172 | modelprices.xyz modelprices.xyz normalized LLM market data | AI | Base | $0.69 | 75 | 8 |
| #173 | x402vid x402vid.com AI Video Intelligence | AI | Base | $6.25 | 59 | 4 |
| #174 | TBS Crypto & DeFi API tbs-digital.com All-in-one weather for AI agents in one sub-cent call: current conditions, 24h hourly and 7-day forecast, air quality, solar radiation and severe-weather… | AI | Base | $0.04 | 40 | 15 |
| #175 | CatalogBot x402 seller hydratrader.ai Pay-per-call POSTs for agents (3 SKUs + verb-path aliases of cheap-errand). Auth: no API key. Unpaid requests return HTTP 402 Payment Required; settle USDC on… | AI | Base | $0.62 | 35 | 7 |
| #176 | FastAPI x402endpoint-924155002144.us-west2.run.app Provides endpoints for nuclear preparedness, item management, and data management. | Data | Base | $2.38 | 78 | 5 |
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