Wallet-ready APIs for balances, gas, and cross-chain swap quotes across 12 chains — one clean integration instead of dozens.
Balances
Gas estimate
0.0016 ETH
≈ $3.24 · normal
Best quote
One API across every network
Stop stitching together RPCs, indexers, token lists, fee estimators, and routers.
Use balances, gas, and quotes independently — or together as one wallet-grade stack.
Clean, predictable JSON and stable error codes that agents and tools can reason about.
Hashed API keys, per-key rate limits, usage metering, and credit-based billing baked in.
One integration, 12 chains. Normalized responses, partial-failure handling, real docs.
Each usable on its own. Strongest together.
Normalized balances across EVM, UTXO, THORChain & Maya — with pricing and spam/dust filtering.
Current gas prices and fee estimates, normalized into one shape across every chain.
Aggregated, executable cross-chain swap quotes across multiple liquidity sources.
Send one request and get normalized, USD-priced balances across all supported chains. Credit and rate-limit headers come standard.
Read the API referencecurl https://chainkit.thorwallet.com/v1/balances/0xd8dA…96045 \
-H "Authorization: Bearer thw_live_xxxx"
{
"totalUsd": "12843.52",
"balances": [
{ "chain": "ethereum", "asset": "ETH", "valueUsd": "4756.05" },
{ "chain": "base", "asset": "USDC", "valueUsd": "2450.00" }
]
}Start free. Top up with USDC. Only pay for what you use.