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Multichain APIs: a practical developer guide
Build a shared application model without hiding the differences between Ethereum, Solana, and Bitcoin.
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Read Ethereum balances with JSON-RPC
A read-only walkthrough of network identity, exact quantities, block context, and useful failure states.
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Solana balances, slots, and commitment
Carry cluster identity, commitment, lamports, and response context all the way to your interface.
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Bitcoin API data: think in outputs
Understand outpoints, observation status, and the difference between one output and a wallet overview.
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JSON-RPC, REST, or WebSockets?
Match your request pattern to the feature, then design reconnection and recovery before scaling.
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A safer wallet connection checklist
Keep discovery, connection, account context, and signing permissions separate in your application.
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Token balances without rounding mistakes
Separate asset identity, exact quantities, display metadata, and the limits of token discovery.
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Build an event index that can recover
Design checkpoints, replay, reorganization handling, and historical coverage as first-class features.
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Rate limits and retries, minus the chaos
Classify failures, respect rate-limit signals, and put every operation on a bounded recovery budget.
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How to evaluate a blockchain API provider
Turn method coverage, costs, credentials, and recovery tests into an evidence-based decision record.
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Fundamentals
Start with the question. Then choose the interface.
Explore this categoryNetwork guides
Three networks. Three useful mental models.
Explore this categoryProduction patterns
Design the difficult states, too.
Explore this categoryData engineering
Keep the digits. Keep the history.
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