Cross-chain bridge aggregator MCP server for AI agents. Compares routes across LI.FI, deBridge, Relay, Across and Squid to find the best rate. Use when an agent needs to bridge or swap tokens between EVM chains, Solana, or Cosmos. The aggregator of aggregators.
Cross-chain bridge aggregator that finds the best route across 5 bridge backends.
Add to your MCP config:
{
"mcpServers": {
"bridgekitty": {
"command": "npx",
"args": ["@persistenceone/bridgekitty"]
}
}
}
No API keys required for basic usage. Optional: set LIFI_API_KEY for enhanced rate limits.
List all supported chains (119+ EVM, Solana, Cosmos).
Search for tokens on a specific chain by name or symbol.
Get the best bridge route. Queries all backends in parallel, ranks by net value received.
Required params: fromChain, , , ,
,
toChainfromTokentoTokenamountsenderAddressrecipientAddressCompare quotes across all backends side-by-side. Returns all available routes with fee breakdowns.
Execute a bridge transaction. Returns unsigned transaction data (or signs and sends if sign_and_send: true with a configured wallet).
Check the status of an in-progress bridge transfer.
Create or import EVM/Cosmos/Solana wallets for the agent.
Check token balances across chains.
Get contextual help about any BridgeKitty feature.
bridge_chains — find chain IDsbridge_tokens — find token addressesbridge_get_quote — get best route with feesbridge_execute — execute the transferbridge_status — monitor completion| Direction | Backends |
|---|---|
| EVM → EVM | All 5 backends |
| EVM → Solana | deBridge, Relay |
| Solana → EVM | deBridge |
| EVM → Cosmos | Squid |