# Pulse

> Compare partial x402 activity across Algorand, Base, Solana and Polygon, with source attribution and measurement windows.

Read-only MainNet comparison preserves Algorand facilitator metrics and Resource Intelligence. External USDC volume supports 7d, 30d and UTC day-to-date (24h selector), with no 1h data or selected-period per-chain settlement counts. Sources have partial coverage; no global total is calculated.

[Open the interactive page](https://trace402.com/pulse) · [Developer guide](https://trace402.com/developers.md)