x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| — | api.retry402.com retry402.com An API available at api.retry402.com. | Other | $0.00 | 0 | 0 | |
| — | Romny Polymarket Data api.romny.dpdns.org Paid Polymarket + copy-trade + RH×PM cross-venue feeds via standard x402. Catalog endpoints return HTTP 402 until settled via Agentic Wallet / CDP. | Data | Base | $0.04 | 3 | 1 |
| — | RQM Relay API rqm-relay.com Discovery, comparison, quoting, execution, and verification for machine capabilities. | Data | Base | $0.00 | 0 | 0 |
| — | RTK Motion Intelligence Platform rtkmotion.io Agent-to-agent paid access to 4D motion capture (BVH/robot trajectories), rehabilitation biomechanics, and location threat intelligence. | AI | Base | $0.00 | 0 | 0 |
| — | Run402 API run402.com Full-stack infrastructure for AI agents. Postgres, REST API, auth, file storage, static site hosting, serverless functions. Tier payments and image generation… | AI | Base | $0.40 | 4 | 4 |
| — | Safe4 Payment Authorization safe4.ai Decide whether an AI agent's proposed payment should be allowed, by testing it against the task the agent was actually given. Priced per call in USDC over x402. | AI | Base | $0.00 | 0 | 0 |
| — | api-sales 49110-a2faebhnaj4vebqe.splox.app A data service with no documented endpoints. | Data | Base | $0.00 | 0 | 0 |
| — | SALT19 Agent Utility Grid salt19.com SALT19 Agent Utility Grid with Proof402 machine-commerce preflight, x402 payment/delivery binding verification, Ed25519 signed receipts, and Merkle-batched… | Search | Base | $0.01 | 1 | 2 |
| — | Brickken x402 Agentic API brickken.com Discoverable x402 facade endpoints for preparing Brickken ERC-8004, agent-token and ERC-8226 RAMS transactions. | AI | $0.00 | 0 | 0 | |
| — | ScrubMyText + Agent Infrastructure API scrubmytext.com 49 deterministic tools for text integrity, AI-agent controls, and contextual service-quality evidence. TrustMyChoice provides free public lookup and… | AI | Base | $0.00 | 0 | 0 |
| — | SECONDED public API secondedoracle.xyz SECONDED checks require agreement between two rival-lab models. Disagreement means NOT VERIFIED: pause or ask a human; no verdict is released and SECONDED… | AI | Base | $5.30 | 21 | 8 |
| — | api.shippingrates.org shippingrates.org Provides shipping rate information through an API. | Other | Solana | $0.00 | 0 | 0 |
| — | Shoal API shoal.xyz Semantic data layer for crypto entities, events, relationships, and timelines. | Data | Base | $0.05 | 1 | 1 |
| — | api.signalbrew.io signalbrew.io API service at api.signalbrew.io with no documented description or endpoints. | Other | $0.00 | 0 | 0 | |
| — | Signalis API signalis.dev Signalis — global intelligence, real-time awareness. Two surfaces on x402: (1) Master Intelligence — a cross-source synthesis produced every 4 hours from a… | AI | Base | $0.00 | 0 | 0 |
| — | api.slamai.dev api.slamai.dev Provides blockchain token discovery, token price, and wallet trade data through paid API endpoints. | Chain infra | Base | $0.00 | 0 | 0 |
Showing 1393–1408 of 4,215