Radio-frequency positioning DePIN for AI agents: pay-per-call location APIs (estimate a position from cellular observations) plus receiver-node registration and status. USDC on Solana and Base, x402 v2, with machine-readable discovery at /.well-known/x402 and a catalog at /api/x402/catalog.
| verified | Not yet: listing not claimed with domain proof. |
| trusted | Not yet: needs 3+ independent buyers and 5+ settlements in 30 days. |
GET https://azimuth.day/api/x402/nodes[](https://agentropolis.io/listing/x402.azimuth)