injective-trading-bridge

name	injective-trading-bridge
description	Bridge tokens to and from Injective using deBridge DLN (fast, cross-chain) or Peggy (Ethereum canonical bridge). Supports inbound bridges from Arbitrum, Ethereum, Base, Polygon, BSC, Avalanche, and Optimism into Injective, and outbound bridges from Injective to any deBridge-supported chain. Get quotes before executing. Requires the Injective MCP server to be connected.
uses	["injective-mcp-servers"]
license	MIT
metadata	{"author":"ckhbtc","version":"0.0.0"}

Injective Trading Bridge, Skill Guide

Move tokens cross-chain to/from Injective using two bridge protocols:

• deBridge DLN - fast (minutes), supports Arbitrum, Base, Ethereum, Polygon, BSC, Avalanche, Optimism
• Peggy - Injective's canonical Ethereum bridge (~30 min, decentralized)

Always get a quote first (bridge_debridge_quote / bridge_debridge_inbound_quote), before executing.

When to apply

• Bridging tokens from other networks into Injective
• Bridging tokens from Injective into other networks

Sample prompts: ./references/sample-prompts.md

Important

Common tokens and network info

See ./references/common-tokens.md for common tokens.

See ./references/common-networks.md for common networks.

Notes

• deBridge DLN settles in minutes. Quote includes fee breakdown and estimated receive amount.
• The inbound flow reuses the Injective wallet's private key on the source EVM chain
  • this works because Injective uses the same secp256k1 curve as Ethereum.
• If the source chain has no configured default RPC, provide rpcUrl explicitly.
• After an inbound bridge, tokens arrive on Injective EVM. Use subaccount_deposit to move them into the trading subaccount.

Activities

Bridge tokens from Injective to other network using DeBridge

Step 1 - Obtain quote:

bridge_debridge_quote
  address: inj1...         ← sender (Injective)
  srcTokenDenom: usdt      ← denom on Injective (symbol or full denom)
  amount: 50               ← human-readable amount
  dstChain: arbitrum       ← or: base, ethereum, polygon, bsc, avalanche, optimism
  dstTokenAddress: 0xaf88d065e77c8cc2239327c5edb3a432268e5831   ← USDC on Arbitrum
  recipient: 0x...         ← EVM address on destination chain

Step 2 - Execute quote:

bridge_debridge_send
  address: inj1...
  password: ****
  srcTokenDenom: usdt
  amount: 50
  dstChain: arbitrum
  dstTokenAddress: 0xaf88...
  recipient: 0x...

Bridge tokens from other network to Injective using DeBridge

The Injective wallet's private key (secp256k1) signs on both chains, the same private key works on EVM chains.

Step 1 - Obtain quote:

bridge_debridge_inbound_quote
  srcChain: arbitrum       ← or chain ID: 42161
  srcTokenAddress: 0xaf88d065e77c8cc2239327c5edb3a432268e5831   ← USDC on Arbitrum
  amount: 50
  dstTokenAddress: 0x88f7f2b685f9692caf8c478f5badf09ee9b1cc13   ← USDT on Injective EVM
  recipient: inj1...       ← or 0x EVM address on Injective

Step 2 - Execute quote:

This performs an ERC20 approve + bridge transaction on source chain.

bridge_debridge_inbound_send
  address: inj1...         ← Injective wallet (key used on source chain too)
  password: ****
  srcChain: arbitrum
  srcTokenAddress: 0xaf88...
  amount: 50
  dstTokenAddress: 0x88f7...
  recipient: inj1...

Note: You need to pay transaction fees on both networks.

Bridge tokens from Injective to Ethereum using Peggy

This method is slower, but also decentralized. Expect to take ~30min.

bridge_withdraw_to_eth
  address: inj1...
  password: ****
  denom: peggy0xdac17f958d2ee523a2206206994597c13d831ec7   ← USDT denom on Injective
  amount: 100
  ethRecipient: 0x...

Related skills

• injective-mcp-servers

If these skills are not available, selectively run the following commands to install them:

npx skills add InjectiveLabs/agent-skills --skill injective-mcp-servers

Browser-Based Bridge UX Notes

When integrating deBridge DLN in a browser frontend:

• Arbitrum USDC → Injective USDT is the most common path. Takes ~1-3 minutes.
• Balance doesn't auto-refresh after bridging. Add an explicit refresh button next to the balance display, or poll the balance on a timer after bridge submission.
• Don't block on bridge confirmation — show "Transaction submitted!" and let the user continue. The USDT arrives async.
• User needs ETH on Arbitrum for gas. Make this clear in the UI before the bridge flow.

Prerequisites

• Injective MCP server must be running
• User prompts should be issued from an AI tool that is configured to talk to the Injective MCP server