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KyberSwap is a DEX aggregator that routes trades across 50+ liquidity sources. The plugin fetches a route quote, builds unsigned calldata with the KyberSwap Aggregator API, and submits the swap through Base MCP send_calls. Chains: Base, Ethereum, Arbitrum, Optimism, Polygon, BSC, and Avalanche. Operations: token resolution, best-route quotes, swap calldata building, ERC-20 approvals, and native-token swaps.
Multi-chain swaps. Use chain name strings such as base, arbitrum, or polygon, not numeric chain IDs. Quotes can move, so the assistant confirms output, gas, and slippage first.

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Try it

Base swap
Swap 100 USDC to ETH on Base
Arbitrum swap
Swap 0.1 ETH to USDC on Arbitrum
Read-only quote
What's the best rate to swap 500 MATIC to USDC on Polygon?

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Pattern

The assistant calls GET /api/v1/routes, shows the quoted output and gas, then calls POST /api/v1/route/build with the returned routeSummary. Native-token input maps to one router call. ERC-20 input batches an ERC-20 approve call before the router call. transactionValue is returned as decimal wei and must be hex-encoded for Base MCP send_calls.

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Reference

Full plugin spec on GitHub

Route API, build API, chain slugs, approval encoding, and send_calls mapping.