How Freeport Markets Built Cross-Chain Portfolio Charts with Zerion API

馃敡 Building charts that actually work

By Zerion
Mar 10, 2026, 2:00 PM
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Building portfolio charts for onchain assets is more complex than it appears.​ While traditional finance apps make it look simple, the reality involves aggregating balances, positions, and transaction history across multiple blockchains, then computing accurate valuations at each point in time.​

Freeport Markets tackled this challenge by integrating Zerion API into their new investing platform.​ The integration enables:

  • Real-time portfolio tracking across chains
  • Historical chart data with accurate valuations
  • Complete transaction history

The technical implementation demonstrates how infrastructure providers like Zerion are solving critical data aggregation problems that would otherwise require significant engineering resources.​

Read the full technical breakdown

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