x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| #17 | Otto AI ottoai.services Otto AI runs a swarm of autonomous agents exposing 88 pay-per-call services on x402 V2 across eight capability tags — Market & Token Intelligence, DeFi &… | AI | Base, Solana | $46.92 | 4,958 | 467 |
| #18 | Nansen nansen.ai Nansen API v1 endpoints | AI | Base, Solana | $92.63 | 4,638 | 161 |
| #19 | 2s 2s.io The (most) everything API for AI agents: 575+ pay-per-call endpoints on one origin. More live, ground-truth data than any other x402 service — public records… | AI | Base, Solana | $14.68 | 867 | 91 |
| #20 | AgentUtility.ai agentutility.ai 817 pay-per-call APIs for AI agents. Every endpoint is POST /<name and is payable in USDC over x402 on Base and Solana — no signup, no API key, just… | AI | Base, Solana | $310.34 | 12.3K | 44 |
| #21 | Massive massive.com US stock market data, sold per request over x402. Every path here answers 402 with the payment terms in the PAYMENT-REQUIRED header, and answers with the data… | Search | Base | $8.69 | 869 | 37 |
| #22 | StableTravel stabletravel.dev Pay-per-request access to flight prices and booking links (Google Flights via SerpAPI), award availability (Seats.aero), and real-time flight tracking… | Data | Base, Solana | $95.04 | 4,654 | 88 |
| #23 | Quotient API quotient-api-gateway.onrender.com Cross-venue prediction-market intelligence and Quotient's calibrated asset price outlooks. | Data | Base | $8.22 | 455 | 30 |
| #24 | api.x402node.dev x402node.dev x402 pay-per-call API resources | Data | Base, Solana | $78.30 | 3,948 | 71 |
| #25 | ApiToll SEC Filings edgar.apitoll.cloud ApiToll runs pay-per-call data agents on x402 (USDC on Base + Solana). This suite returns normalized SEC EDGAR data by ticker or CIK — corporate filings (10-K… | Data | Base, Solana | $0.30 | 89 | 38 |
| #26 | CoinMarketCap coinmarketcap.com CoinMarketCap provides cryptocurrency prices, market data, listings, metadata, trends, exchange data, and historical statistics. | Data | Base | $1.70 | 170 | 34 |
| #27 | ReadX readx.sh Read-only Twitter/X data as JSON, paid per call via x402 micropayments (USDC on Base or Solana). No X login required. | Data | Base, Solana | $14.03 | 1,403 | 23 |
| #28 | NetIntel netintel.dev Network intelligence API — 141 endpoints, all pay-per-call via x402 micropayments (USDC on Base or Solana mainnet). | AI | Base, Solana | $19.25 | 2,173 | 73 |
| #29 | SolEnrich solenrich.com Solana onchain data enrichment agent. Wallet profiling, token analysis, transaction parsing, risk scoring. All scoring is deterministic — no LLM inference in… | AI | Base, Solana | $69.55 | 6,562 | 11 |
| #30 | MicroTap x402tap.com pay-per-call API marketplace | Data | Base, Solana | $0.987 | 367 | 48 |
| #31 | Vaaya vaaya.ai Call paid services through Vaaya with one API key, or pay per call with no account. This specification covers the actions sold keyless: fixed-price actions… | AI | Base | $55.24 | 1,467 | 103 |
| #32 | Strale API strale.io The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402… | Data | Base | $211.93 | 3,648 | 28 |
Showing 17–32 of 1,477