Taiko Native Bridge

Use when an agent needs to bridge or claim ETH/ERC20/ERC721/ERC1155 across Taiko L1/L2 with send/wait-ready/claim workflows.

taiko-bridge-cli

Use bridge-cli for Taiko bridge send/wait/claim flows in both directions (L1->L2, L2->L1).

Install

Preferred (remote install):

• go install github.com/davidcai/taiko-bridge-cli/cmd/bridge-cli@latest

Local source build:

• cd /path/to/taiko-bridge-cli
• go build -o bridge-cli ./cmd/bridge-cli

Download binary (if release artifact is available):

• curl -L -o bridge-cli <release-binary-url>
• chmod +x bridge-cli

Quick sanity check:

• ./bridge-cli --help
• ./bridge-cli schema

Environment

Set RPC and key vars once, then reuse in commands.

bash

export BRIDGE_CLI_PRIVATE_KEY=0x...

# Direction A: L1 -> L2
export L1_RPC=https://l1-rpc
export L2_RPC=https://l2-rpc

Base flags template:

bash

COMMON_FLAGS=(
  --src-rpc "$SRC_RPC"
  --dst-rpc "$DST_RPC"
  --private-key "$BRIDGE_CLI_PRIVATE_KEY"
)

Address override flags are optional and only needed for custom deployments.

Missing env behavior (for agents)

Before running bridge commands, verify these required envs exist:

• BRIDGE_CLI_PRIVATE_KEY
• SRC_RPC
• DST_RPC

If any are missing, do not run the command. Ask the user for the missing values first.

Example prompt:

• I’m missing required env vars: SRC_RPC, DST_RPC. Please provide them so I can continue.

Recommended flows

Pipeline (fastest for agents):

• ETH: ./bridge-cli claim-eth "${COMMON_FLAGS[@]}" --to 0x... --value 1 --fee 0 --gas-limit 1000000
• ERC20: ./bridge-cli claim-erc20 "${COMMON_FLAGS[@]}" --token 0x... --amount 100 --to 0x... --fee 0
• ERC721: ./bridge-cli claim-erc721 "${COMMON_FLAGS[@]}" --token 0x... --token-ids 1 --to 0x... --fee 0
• ERC1155: ./bridge-cli claim-erc1155 "${COMMON_FLAGS[@]}" --token 0x... --token-ids 1 --amounts 1 --to 0x... --fee 0

Low-level explicit (debuggable):

1. send-*
2. wait-ready --tx-hash <send_tx_hash>
3. claim --tx-hash <send_tx_hash>

Example ETH low-level:

bash

SEND_JSON=$(./bridge-cli send-eth "${COMMON_FLAGS[@]}" \
  --to 0xRecipient \
  --value 1 \
  --fee 0 \
  --gas-limit 1000000)

TX_HASH=$(echo "$SEND_JSON" | jq -r '.tx_hash')

./bridge-cli wait-ready "${COMMON_FLAGS[@]}" \
  --tx-hash "$TX_HASH" \
  --timeout 20m \
  --poll-interval 5s

./bridge-cli claim "${COMMON_FLAGS[@]}" \
  --tx-hash "$TX_HASH" \
  --timeout 20m \
  --poll-interval 5s

Direction switch

For L2->L1, swap source and destination values:

• SRC_* = L2 values
• DST_* = L1 values

Then run the exact same commands.

Agent notes

• Default output is JSON; prefer parsing with jq.
• ETH gas limit safety:
  • bridge-cli auto-checks getMessageMinGasLimit(len(data)).
  • If --gas-limit is too low, it auto-bumps and returns:
    • requested_gas_limit
    • min_gas_limit
    • effective_gas_limit
    • gas_limit_adjusted
• bridge-* commands are legacy aliases of claim-*.
• If claim reverts but status shows dest_message_status=2, message was already processed (usually relayer race).

Troubleshooting

• wait-ready never progresses:
  • verify you are using signal_service addresses, not inbox/anchor addresses.
• execution reverted on send:
  • check effective_gas_limit and bridge destination config.
• Timeouts:
  • keep polling with larger --timeout, then retry claim.