injective-trading-bridge by injectivelabs/agent-skills

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