x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| #145 | Hyperliquid Smart Money Data API whaletape.xyz Every paid endpoint answers 402 with machine-readable payment requirements. Pay and retry with the X-PAYMENT header. No signup, no API key. | Data | Base, Solana | $0.274 | 45 | 16 |
| #149 | Palmyr palmyr.ai Autonomous infrastructure for AI agents — pay with USDC on Solana or Base via x402. | Chain infra | Base, Solana | $77.18 | 129 | 22 |
| #150 | 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 | $0.275 | 76 | 24 |
| #160 | 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 | $0.339 | 47 | 18 |
| #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 | $0.08 | 32 | 12 |
| #172 | 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 | $13.20 | 74 | 9 |
| #175 | VoidFeed voidfeed.ai Content platform engineered for AI agent consumption. Five content architectures. Free tier available. Premium via Lightning Network. | AI | Base, Solana | $1.85 | 30 | 7 |
| #179 | 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 | $2.80 | 28 | 7 |
| #181 | Twitter/X API twitter.use.x402atlas.com !x402 Atlas | Data | Base, Solana | $16.92 | 2,782 | 43 |
| #183 | HubVibe Site Compliance Auditing Suite hubvibe-io.com 63 pay-per-call tools for AI agents under /work -- web search and cited research, email verification, company enrichment, identity checks (KYC screening) and… | Data | Base, Solana | $286.48 | 365 | 8 |
| #185 | api.messari.io messari.io Provides cryptocurrency asset, market, exchange, funding, token unlock, and investor signal data through API endpoints. | Data | Base, Solana | $72.10 | 372 | 17 |
| #189 | TariffMonkee Agent Tool Stack API tariffmonkee.com Pay-per-call web data APIs for AI agents over the x402 protocol. No accounts, no API keys -- every path below returns HTTP 402 with its exact USDC price; sign… | Utility | Base, Solana | $0.154 | 12 | 7 |
| #197 | api.delx.ai api.delx.ai Provides paid x402 utilities for HTTP checks, hashing, URL policies, vesting calculations, weighted selection, and ABI type analysis. | AI | Base, Solana | $0.611 | 276 | 33 |
| #202 | 21 Million Pixels 21millionpixels.art 21millionpixels.art is one canvas of 5000 x 4200 tiles that humans paint for free (one tile every 15 seconds) and agents pay to paint on, divided into 210,000… | Media | Base, Solana | $53.73 | 9,982 | 9 |
| #210 | Edge Agents AI edge-agents.ai Machine-purchasable market intelligence with evidence, freshness, uncertainty, limitations and provenance. Persistently unhealthy services are automatically… | AI | Base, Solana | $35.04 | 1,638 | 10 |
| #212 | Automaton Risk Scanner wreckbots.io AI trading agent service: deterministic risk scoring + real-time entry confidence signal (ENTERNOW/WAIT/AVOID/EXIT) + Jupiter liquidity depth (price impact at… | Data | Solana | $0.014 | 7 | 4 |
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