morph-bridge

Morph Bridge — AI Agent Skill

Cross-chain swap via Bulbaswap Cross-Chain Swap API. Supports 6 chains: Morph, Ethereum, Base, BNB Chain, Arbitrum, Polygon. All commands output JSON. Includes JWT-authenticated order management.

Activation Triggers

Use this skill when the user wants to: bridge tokens across chains, get a cross-chain swap quote, search tokens on multiple chains, check token balances with USD prices, or create and manage cross-chain swap orders.

Quick Start

pip install requests eth_account

# Run from repository root
python3 scripts/morph_api.py <command> [options]

No API keys required for queries. Order management requires JWT authentication via bridge-login.

BGW Routing Note

Decide the mode once via the root SKILL.md and docs/social-wallet-integration.md.

• This skill handles bridge quotes, token discovery, JWT auth, and order management.
• bridge-login, bridge-make-order, bridge-submit-order, and bridge-swap require --private-key (local signing only).
• Social Login Wallet users should use BGW's swap flow for cross-chain execution — see social-wallet-integration.md.
• bridge-quote, bridge-chains, bridge-tokens, bridge-token-search, and bridge-balance are read-only and work for any wallet type.

---

Supported Chains

Chain	Name
morph	Morph
eth	Ethereum
base	Base
bnb	BNB Chain
arbitrum	Arbitrum
matic	Polygon

Use bridge-chains to get the latest list.

---

Commands

bridge-chains

List all supported chains for cross-chain swap.

python3 scripts/morph_api.py bridge-chains

bridge-tokens

List available tokens for cross-chain swap. Optionally filter by chain.

# All tokens across all chains
python3 scripts/morph_api.py bridge-tokens

# Tokens on Morph only
python3 scripts/morph_api.py bridge-tokens --chain morph

bridge-token-search

Search tokens by symbol or contract address across chains.

# Search by symbol
python3 scripts/morph_api.py bridge-token-search --keyword USDT

# Search on a specific chain
python3 scripts/morph_api.py bridge-token-search --keyword USDC --chain base

bridge-quote

Get a cross-chain or same-chain swap quote with price, fees, and route info.

# Cross-chain: USDT on Base → USDT on BNB
python3 scripts/morph_api.py bridge-quote \
  --from-chain base --from-token 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 \
  --amount 2 --to-chain bnb \
  --to-token 0x55d398326f99059ff775485246999027b3197955 \
  --from-address 0xYourAddress

# Same-chain: ETH → USDT on Morph
python3 scripts/morph_api.py bridge-quote \
  --from-chain morph --from-token ETH \
  --amount 0.01 --to-chain morph \
  --to-token USDT \
  --from-address 0xYourAddress

bridge-balance

Query token balance and USD price for an address on any supported chain.

python3 scripts/morph_api.py bridge-balance \
  --chain morph --token USDT --address 0xYourAddress

# Native ETH balance
python3 scripts/morph_api.py bridge-balance \
  --chain eth --token ETH --address 0xYourAddress

bridge-login

Sign in with an EIP-191 wallet signature to get a JWT access token (valid 24h). Required for order management commands.

python3 scripts/morph_api.py bridge-login --private-key 0xYourKey

Returns accessToken in response data.

bridge-make-order

Create a cross-chain swap order. Returns orderId and unsigned transactions (txs) to sign.

python3 scripts/morph_api.py bridge-make-order --jwt <JWT> \
  --from-chain morph --from-contract 0xe7cd86e13AC4309349F30B3435a9d337750fC82D \
  --from-amount 10 --to-chain base \
  --to-contract 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 \
  --to-address 0xRecipient --market stargate \
  --slippage 0.5 --feature no_gas

bridge-submit-order

Submit signed transactions for an existing swap order.

python3 scripts/morph_api.py bridge-submit-order --jwt <JWT> \
  --order-id abc123 --signed-txs 0xSignedTx1,0xSignedTx2

bridge-swap

One-step cross-chain swap: create order, sign transactions, and submit — all in one command. This is the recommended way for agents to execute bridge swaps (equivalent to bridge-make-order → sign → bridge-submit-order).

python3 scripts/morph_api.py bridge-swap --jwt <JWT> \
  --from-chain morph --from-contract USDT.e --from-amount 5 \
  --to-chain base --to-contract USDC \
  --market stargate --private-key 0xYourKey

# With optional parameters
python3 scripts/morph_api.py bridge-swap --jwt <JWT> \
  --from-chain morph --from-contract USDT.e --from-amount 5 \
  --to-chain base --to-contract USDC \
  --to-address 0xRecipient --market stargate \
  --slippage 0.5 --feature no_gas --private-key 0xYourKey

• --to-address defaults to sender address if omitted
• Returns orderId for status tracking via bridge-order

bridge-order

Query the status of a swap order.

python3 scripts/morph_api.py bridge-order --jwt <JWT> --order-id abc123

bridge-history

Query historical swap orders. Supports pagination and status filtering.

# Default (page 1)
python3 scripts/morph_api.py bridge-history --jwt <JWT>

# With filters
python3 scripts/morph_api.py bridge-history --jwt <JWT> --page 1 --page-size 10 --status completed

---

Authentication

Order management commands (bridge-make-order, bridge-submit-order, bridge-swap, bridge-order, bridge-history) require a JWT access token obtained via bridge-login.

Auth Flow

1. bridge-login --private-key 0x... → signs an EIP-191 message with timestamp
2. API returns accessToken (JWT, valid 24h)
3. Pass the token to subsequent commands via --jwt <JWT>

Security Rules

• Private keys are only used locally for EIP-191 message signing in bridge-login. They are never sent to the API.
• JWT tokens are sent as Authorization: Bearer <token> headers. They expire after 24 hours.
• Always confirm with the user before executing bridge-make-order or bridge-swap — show the swap details (chains, tokens, amounts) before creating the order.
• Always confirm with the user before executing bridge-submit-order — show the orderId and number of signed transactions before broadcasting to the chain.

Difference from morph-dex

Feature	morph-dex	morph-bridge
API Path	/v2/quote	/v2/order/*
Scope	Same-chain swap (Morph only)	Cross-chain + same-chain (6 chains)
Execution	dex-send broadcasts tx	bridge-swap (recommended) or bridge-make-order → sign → bridge-submit-order
Auth	None	JWT via bridge-login (for orders)
Token format	ETH for native	"" (empty string) for native
Use when	Swapping tokens on Morph	Cross-chain transfers or multi-chain swaps

Important Notes

• Native token format: Bridge API uses empty string "" for native tokens. The CLI handles this automatically — pass ETH (on ETH/Morph/Base/Arbitrum chains), BNB (on BNB Chain), or POL/MATIC (on Polygon).
• Multi-chain symbol resolution: Token symbols are resolved per chain. USDC on base resolves to Base USDC (0x8335...), while USDC on morph resolves to Morph USDC (0xCfb1...). Use bridge-token-search for tokens not in the built-in registry.
• Quote fees: The quote response includes fee breakdown, price impact, and route information. Check docs/bridge.md for field details.
• JWT expiry: Access tokens from bridge-login expire after 24 hours. Re-authenticate if you get auth errors.

Common Workflows

Check cross-chain swap price:

bridge-chains (list supported chains) → bridge-token-search --keyword USDT (find token on target chain) → bridge-quote (get price)

Execute a cross-chain swap (recommended):

bridge-login (get JWT) → bridge-quote (get price + market) → bridge-swap (create, sign, submit in one step) → bridge-order (track status)

Execute a cross-chain swap (advanced — manual signing):

bridge-login (get JWT) → bridge-quote (get price + market) → bridge-make-order (create order, get txs) → sign txs locally → bridge-submit-order (submit signed txs) → bridge-order (track status)

Compare prices across chains:

bridge-quote (chain A → chain B) → bridge-quote (chain A → chain C) → compare toAmount

Check multi-chain portfolio:

bridge-balance (chain 1) → bridge-balance (chain 2) → ... (each chain)

Track order status:

bridge-order --order-id X (poll until completed) or bridge-history (list all orders)

Cross-Skill Integration

• Use bridge-token-search to find token addresses, then dex-quote (morph-dex) for on-chain Morph swaps.
• Use bridge-balance for multi-chain balance checks alongside balance / token-balance (morph-wallet) for Morph-specific queries.
• Use bridge-quote to compare cross-chain rates with dex-quote (morph-dex) same-chain rates.
• If the wallet source is a BGW Social Login Wallet, use BGW for the wallet context first and then use this skill for route selection and bridge workflow reasoning.