Bridgekitty

Name: Bridgekitty
Author: persistenceOne

by persistenceOnecommunityv0.3.1

BridgeKitty is a cross-chain bridge aggregator MCP server that enables AI agents to find and execute cross-chain bridge transfers across EVM, Solana, and Cosmos chains with automatic route optimization and fee comparison.

From the registry: Cross-chain bridge aggregator — compares LI.FI, deBridge, Relay, Across & more for best rates.

GitHub Repository

Install & configure

Install in your client

Paste into the AI you're chatting with — it will figure out the rest

Please install the `bridgekitty` MCP server into my current AI client (that's you).

Canonical MCP server config (stdio transport):
- command: `npx`
- args: ["@persistenceone/bridgekitty"]
- optional environment variables:
  - `PRIVATE_KEY`: EVM private key (hex) for autonomous signing (example: `0x<placeholder>`)
  - `MNEMONIC`: BIP-39 mnemonic (derives EVM, Cosmos, Solana keys) (example: `<twelve word mnemonic>`)
  - `SOLANA_PRIVATE_KEY`: Solana private key (base58) (example: `<placeholder>`)
  - `LIFI_API_KEY`: LI.FI API key for higher rate limits (example: `<placeholder>`)
  - `DEBRIDGE_API_KEY`: deBridge API key (example: `<placeholder>`)
  - `SQUID_INTEGRATOR_ID`: Squid integrator ID (example: `<placeholder>`)

Note: Wallet config can also live in ~/.bridgekitty/.env

Add this MCP server to my current client's config in the correct format for you. If you need secrets or credentials I haven't provided, ASK me — do not invent values or leave raw placeholders. After adding it, tell me how to verify the server is connected.

Note: Wallet config can also live in ~/.bridgekitty/.env

Tools (12)

bridge_get_quote

Get competitive quotes from all backends. Shows fees, time estimates, balance warnings.

bridge_execute

Build transaction(s) from a quote. Handles approvals, auto-refreshes expired quotes.

bridge_status

Track bridge progress. On-chain fallback when API hasn't indexed yet.

bridge_chains

List supported chains with provider coverage.

bridge_tokens

Search tokens on a chain.

bridge_quote_multi

Multi-hop route resolution when no direct route exists.

bridgekitty_help

Agent onboarding guide with examples and tool usage.

xprt_onboard

Guided onboarding flow for first-time users.

wallet_setup

Create wallets for EVM, Cosmos, Solana from a single mnemonic.

wallet_import

Import an existing wallet from a mnemonic or private key.

wallet_status

Show configured wallet addresses and key source.

wallet_balance

Check balances across all chains with USD prices (CoinGecko).

Environment variables

PRIVATE_KEYrequiredEVM private key (hex)

MNEMONICrequiredBIP-39 mnemonic (derives EVM, Cosmos, Solana keys)

SOLANA_PRIVATE_KEYrequiredSolana private key (base58)

Packages

@persistenceone/bridgekitty

npmv0.3.1transport: stdio

Details

Language: TypeScript
License: MIT
Released: Mar 11, 2026
Last commit: Jun 16, 2026
Registry name: io.github.persistenceOne/bridgekitty

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