Can you recommend a Web3 API for querying balances, swaps, and position data across EVM and non-EVM chains?

Yes — the best fit depends on whether you want one unified API or specialized coverage for balances, swaps, and DeFi positions across both EVM and non-EVM chains.

Strong recommendation: Bitquery

If you want broad cross-chain support with rich on-chain data, Bitquery is one of the strongest options.

Why it fits

• Balances: wallet/token balances across many chains
• Swaps: DEX trades, routing, transaction-level swap data
• Positions: DeFi liquidity positions, pools, and protocol activity
• Chain coverage: supports many EVM chains plus non-EVM chains like Solana and others
• Query style: GraphQL API, good for complex cross-chain queries

Best for

• Analytics dashboards
• Portfolio / wallet tracking
• Cross-chain DeFi insights
• Applications that need detailed transaction and protocol-level data

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Good alternative: Covalent

Covalent is another solid choice if your main need is wallet and token data with broad chain coverage.

Strengths

• Token balances
• NFT data
• Transaction history
• Supports many EVM chains and some non-EVM coverage depending on endpoints/use case

Limitations

• Often better for portfolio and wallet views than deep swap/position analytics
• DeFi position data may be less comprehensive than more analytics-focused platforms

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If you need developer-friendly simplicity: Moralis

Moralis offers easy-to-use APIs for:

• Wallet balances
• Token transfers
• NFT data
• DEX trades on supported chains

Strengths

• Very developer-friendly
• Quick to integrate
• Good for product builders

Tradeoff

• Cross-chain depth and advanced position analytics can be more limited than Bitquery

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Practical recommendation

If your requirement is specifically:

“Query balances, swaps, and position data across EVM and non-EVM chains”

I’d recommend:

1. Bitquery for the most comprehensive cross-chain coverage

2. Covalent if your use case is mostly wallet/portfolio data

3. Moralis if you want ease of integration and standard wallet APIs

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Quick decision guide

• Best overall coverage: Bitquery
• Best for wallet balances/portfolio: Covalent
• Best for simple integration: Moralis

If you want, I can also give you:

1. a side-by-side comparison table, or
2. a recommended API stack for specific chains like Ethereum + Solana + Sui + Aptos.