Integrate a Chain

Prerequisites

• You should know how to deploy and interact with a CosmWasm contract. Refer to the Osmosis CosmWasm testnet deployment tutorial if you’d like a refresher — just replace osmosisid with axelard and use the amd64 version if building on Linux and arm64 version of the contract optimizer if you are working on a Mac with Apple silicon.
• Run --gas auto --gas-adjustment 1.5 to provide your transactions with sufficient gas.

Devnet information

• Devnet RPC: http://devnet-amplifier.axelar.dev:26657
• Devnet LCD (REST API/JSON RPC): http://devnet-amplifier.axelar.dev:1317
• Devnet gRPC: devnet-amplifier.axelar.dev:9090
• Chain ID: devnet-amplifier

Other info can be found in devnet-amplifier.json.

Get the axelard binary

Install the v0.35.5 axelard binary. You can either download the pre-built version or build it yourself from axelar-core.

Option 1: Download the pre-built binary

1. Download the pre-built axelard binary along with the latest version of the WasmVM.

   • Intel Macs: axelard-darwin-amd64-v0.35.5 and libwasmvm.dylib
   • Macs with Apple silicon: axelard-darwin-arm64-v0.35.5 and libwasmvm.dylib
   • Linux: axelard-linux-amd64-v0.35.5 and libwasmvm.x86_64.so

2. Add the parent folder to LD_LIBRARY_PATH:

   export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:~/[your-path]
   ln -s axelard-darwin-arm64-v0.35.5 axelard
   chmod a+x axelard-darwin-arm64-v0.35.5 
   sudo mkdir /usr/local/lib
   

   If you run into a Mac warning telling you that either the axelard binary or the WasmVM cannot be verified, you can disable it by running:

   xattr -d com.apple.quarantine [filename]
   

Option 2: Build the binary yourself

1. Clone the axelar-core repo.

2. Checkout the v0.35.5 release tag.

3. Run make build.

4. Generate an account by running:

   axelard keys add wallet --keyring-backend test
   

5. Fund your devnet account with uamplifier tokens:

   • Join the Axelar Discord.
   • Get the Developer Role.
   • Go to the #faucet channel and submit a request with your account to get 100 test tokens:

   !faucet devnet-amplifier [your axelar wallet address]
   

6. Query your account balance by running:

   axelard q bank balances [your axelar wallet] —-node [RPC]
   

Onboard a chain to Amplifier

Once you are running ampd and tofnd, you can onboard a chain to the Amplifier by instantiating the gateway, voting verifier, and multisig prover contracts.

You can either use the existing deployed contracts and on the devnet via their code_ids, or build and store these contracts from the axelar-examples repo. A code_id is a CosmWasm identifier of a stored contract that can be instantiated. You will need to insantinate the contracts no matter which option you choose.

Option 1: Use existing deployed contracts

Use the existing deployments for all three contracts, making note of the existing deployment’s code_id:

• Gateway (code_id: 7)
• Voting verifier (code_id: 6)
• Mutisig prover (code_id: 8)

Option 2: Build and deploy the contracts yourself

1. Clone the axelar-amplifier repo.

   git clone https://github.com/axelarnetwork/axelar-amplifier
   cd axelar-amplifier
   git checkout ampd-v0.1.0
   

2. Build the deployed gateway, voting verifier, and multisig prover contracts from devnet-amplifier.json using the Cosmwasm rust-optimizer. From the root of the repo, run:

   docker run --rm -v "$(pwd)":/code \
   --mount type=volume,source="$(basename "$(pwd)")_cache",target=/target \
   --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
   cosmwasm/optimizer:0.15.1
   

3. Deploy the voting verifier:

   axelard tx wasm store artifacts/voting_verifier.wasm --node http://devnet-amplifier.axelar.dev:26657 --from wallet --chain-id devnet-amplifier --gas auto --gas-adjustment 1.5 --gas-prices 0.007uamplifier --keyring-backend test 
   

   Note the code_id in the output:

   {"height":"128706","txhash":"6D9D90DC86A4FC7B1EAE23062997C50ACE988B0091C4BD2B0C785A9F8D133A68","codespace":"","code":0,"data":"0A460A1E2F636F736D7761736D2E7761736D2E76312E4D736753746F7265436F646512240809122073A8B7CF0BE0CAC97C87E2079CFBBD14F3B373ECFA981BF6322A349EEFBEA227","raw_log":"[{\"events\":[{\"type\":\"message\",\"attributes\":[{\"key\":\"action\",\"value\":\"/cosmwasm.wasm.v1.MsgStoreCode\"},{\"key\":\"module\",\"value\":\"wasm\"},{\"key\":\"sender\",\"value\":\"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau\"}]},{\"type\":\"store_code\",\"attributes\":[{\"key\":\"code_checksum\",\"value\":\"73a8b7cf0be0cac97c87e2079cfbbd14f3b373ecfa981bf6322a349eefbea227\"},{\"key\":\"code_id\",\"value\":\"9\"}]}]}]","logs":[{"msg_index":0,"log":"","events":[{"type":"message","attributes":[{"key":"action","value":"/cosmwasm.wasm.v1.MsgStoreCode"},{"key":"module","value":"wasm"},{"key":"sender","value":"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau"}]},{"type":"store_code","attributes":[{"key":"code_checksum","value":"73a8b7cf0be0cac97c87e2079cfbbd14f3b373ecfa981bf6322a349eefbea227"},{"key":"code_id","value":"9"}]}]}],"info":"","gas_wanted":"6153520","gas_used":"3091569","tx":null,"timestamp":"","events":[{"type":"coin_spent","attributes":[{"key":"c3BlbmRlcg==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"NDMwNzV1YW1wbGlmaWVy","index":true}]},{"type":"coin_received","attributes":[{"key":"cmVjZWl2ZXI=","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"YW1vdW50","value":"NDMwNzV1YW1wbGlmaWVy","index":true}]},{"type":"transfer","attributes":[{"key":"cmVjaXBpZW50","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"NDMwNzV1YW1wbGlmaWVy","index":true}]},{"type":"message","attributes":[{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"ZmVl","value":"NDMwNzV1YW1wbGlmaWVy","index":true},{"key":"ZmVlX3BheWVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"YWNjX3NlcQ==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1LzQ=","index":true}]},{"type":"tx","attributes":[{"key":"c2lnbmF0dXJl","value":"RGNGMGJpbUlhUTBnR0d4RHR0TC9iT2hEcHVUWm5iak95dnR4RlUzODBIaGMzTGNBbUhNb0pNZ1hpZDFsbVBOQ0pEd0tWWEpjM290Y094M0d4ZU8xbGc9PQ==","index":true}]},{"type":"message","attributes":[{"key":"YWN0aW9u","value":"L2Nvc213YXNtLndhc20udjEuTXNnU3RvcmVDb2Rl","index":true}]},{"type":"message","attributes":[{"key":"bW9kdWxl","value":"d2FzbQ==","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"store_code","attributes":[{"key":"Y29kZV9jaGVja3N1bQ==","value":"NzNhOGI3Y2YwYmUwY2FjOTdjODdlMjA3OWNmYmJkMTRmM2IzNzNlY2ZhOTgxYmY2MzIyYTM0OWVlZmJlYTIyNw==","index":true},{"key":"Y29kZV9pZA==","value":"OQ==","index":true}]}]}
   

4. Deploy the gateway:

   axelard tx wasm store artifacts/gateway.wasm --node http://devnet-amplifier.axelar.dev:26657 --from wallet --chain-id devnet-amplifier --gas auto --gas-adjustment 1.5 --gas-prices 0.007uamplifier --keyring-backend test
   

   Note the code_id in the output:

   {"height":"128801","txhash":"3D37B9AD0745926F8EF83DF12389D1AB5656D6907B4D25DDA9F0C13B0FF04AB5","codespace":"","code":0,"data":"0A460A1E2F636F736D7761736D2E7761736D2E76312E4D736753746F7265436F64651224080A1220EEBB601D4F72AF3FDBEBCDF60D8C894B2CCDF0EBC7C99D3F1C89B01C95E46CDE","raw_log":"[{\"events\":[{\"type\":\"message\",\"attributes\":[{\"key\":\"action\",\"value\":\"/cosmwasm.wasm.v1.MsgStoreCode\"},{\"key\":\"module\",\"value\":\"wasm\"},{\"key\":\"sender\",\"value\":\"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau\"}]},{\"type\":\"store_code\",\"attributes\":[{\"key\":\"code_checksum\",\"value\":\"eebb601d4f72af3fdbebcdf60d8c894b2ccdf0ebc7c99d3f1c89b01c95e46cde\"},{\"key\":\"code_id\",\"value\":\"10\"}]}]}]","logs":[{"msg_index":0,"log":"","events":[{"type":"message","attributes":[{"key":"action","value":"/cosmwasm.wasm.v1.MsgStoreCode"},{"key":"module","value":"wasm"},{"key":"sender","value":"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau"}]},{"type":"store_code","attributes":[{"key":"code_checksum","value":"eebb601d4f72af3fdbebcdf60d8c894b2ccdf0ebc7c99d3f1c89b01c95e46cde"},{"key":"code_id","value":"10"}]}]}],"info":"","gas_wanted":"4211110","gas_used":"2120364","tx":null,"timestamp":"","events":[{"type":"coin_spent","attributes":[{"key":"c3BlbmRlcg==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"Mjk0Nzh1YW1wbGlmaWVy","index":true}]},{"type":"coin_received","attributes":[{"key":"cmVjZWl2ZXI=","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"YW1vdW50","value":"Mjk0Nzh1YW1wbGlmaWVy","index":true}]},{"type":"transfer","attributes":[{"key":"cmVjaXBpZW50","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"Mjk0Nzh1YW1wbGlmaWVy","index":true}]},{"type":"message","attributes":[{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"ZmVl","value":"Mjk0Nzh1YW1wbGlmaWVy","index":true},{"key":"ZmVlX3BheWVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"YWNjX3NlcQ==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1LzY=","index":true}]},{"type":"tx","attributes":[{"key":"c2lnbmF0dXJl","value":"SlRyc3F0UnczS2ZhYWljRjBNWHg1QzNXQnNxdTgxeVJHRnFIMWIyUnEzd1lFdG9WSlBpY25DZnRrdURQSXM5czRyRGFJMTFVZkVseFhOenB3NTFtbEE9PQ==","index":true}]},{"type":"message","attributes":[{"key":"YWN0aW9u","value":"L2Nvc213YXNtLndhc20udjEuTXNnU3RvcmVDb2Rl","index":true}]},{"type":"message","attributes":[{"key":"bW9kdWxl","value":"d2FzbQ==","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"store_code","attributes":[{"key":"Y29kZV9jaGVja3N1bQ==","value":"ZWViYjYwMWQ0ZjcyYWYzZmRiZWJjZGY2MGQ4Yzg5NGIyY2NkZjBlYmM3Yzk5ZDNmMWM4OWIwMWM5NWU0NmNkZQ==","index":true},{"key":"Y29kZV9pZA==","value":"MTA=","index":true}]}]}
   

5. Deploy the multisig prover:

   axelard tx wasm store artifacts/multisig_prover.wasm --node http://devnet-amplifier.axelar.dev:26657 --from wallet --chain-id devnet-amplifier --gas auto --gas-adjustment 1.5 --gas-prices 0.007uamplifier  --keyring-backend test
   

   Note the code_id in the output:

   {"height":"128925","txhash":"46622CBF0BAC046C27CB455AFEFAF9DCD8F7D89C9D6768E533F5CC17769B09F3","codespace":"","code":0,"data":"0A460A1E2F636F736D7761736D2E7761736D2E76312E4D736753746F7265436F64651224080B122098170453109EF00C5B22ED476B80411EC309E1AEE174CDD59A4A4DAB336CCDAC","raw_log":"[{\"events\":[{\"type\":\"message\",\"attributes\":[{\"key\":\"action\",\"value\":\"/cosmwasm.wasm.v1.MsgStoreCode\"},{\"key\":\"module\",\"value\":\"wasm\"},{\"key\":\"sender\",\"value\":\"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau\"}]},{\"type\":\"store_code\",\"attributes\":[{\"key\":\"code_checksum\",\"value\":\"98170453109ef00c5b22ed476b80411ec309e1aee174cdd59a4a4dab336ccdac\"},{\"key\":\"code_id\",\"value\":\"11\"}]}]}]","logs":[{"msg_index":0,"log":"","events":[{"type":"message","attributes":[{"key":"action","value":"/cosmwasm.wasm.v1.MsgStoreCode"},{"key":"module","value":"wasm"},{"key":"sender","value":"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau"}]},{"type":"store_code","attributes":[{"key":"code_checksum","value":"98170453109ef00c5b22ed476b80411ec309e1aee174cdd59a4a4dab336ccdac"},{"key":"code_id","value":"11"}]}]}],"info":"","gas_wanted":"8377414","gas_used":"4203516","tx":null,"timestamp":"","events":[{"type":"coin_spent","attributes":[{"key":"c3BlbmRlcg==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"NTg2NDJ1YW1wbGlmaWVy","index":true}]},{"type":"coin_received","attributes":[{"key":"cmVjZWl2ZXI=","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"YW1vdW50","value":"NTg2NDJ1YW1wbGlmaWVy","index":true}]},{"type":"transfer","attributes":[{"key":"cmVjaXBpZW50","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"NTg2NDJ1YW1wbGlmaWVy","index":true}]},{"type":"message","attributes":[{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"ZmVl","value":"NTg2NDJ1YW1wbGlmaWVy","index":true},{"key":"ZmVlX3BheWVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"YWNjX3NlcQ==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1Lzg=","index":true}]},{"type":"tx","attributes":[{"key":"c2lnbmF0dXJl","value":"allvMWNsNUxHdC9DNkR4bGIxUG1MczJUY0VGckhNOUtGNEkybVRQVlNRUmFMcGNhdkxuRWR4ZFNBYnlnVWZFT3R2dDBtUjBhbnFoTk1Tb2ZTNnNlL1E9PQ==","index":true}]},{"type":"message","attributes":[{"key":"YWN0aW9u","value":"L2Nvc213YXNtLndhc20udjEuTXNnU3RvcmVDb2Rl","index":true}]},{"type":"message","attributes":[{"key":"bW9kdWxl","value":"d2FzbQ==","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"store_code","attributes":[{"key":"Y29kZV9jaGVja3N1bQ==","value":"OTgxNzA0NTMxMDllZjAwYzViMjJlZDQ3NmI4MDQxMWVjMzA5ZTFhZWUxNzRjZGQ1OWE0YTRkYWIzMzZjY2RhYw==","index":true},{"key":"Y29kZV9pZA==","value":"MTE=","index":true}]}]}
   

Option 3: Deploy a custom implementation of the Amplifier contracts

You can also deploy a custom implementation of the gateway, verifier, and prover contracts and optimize them with the Cosmwasm rust-optimizer. Follow the same steps as Option 2 with your own implementations of the Amplifier contracts.

Instantiate the contracts

1. Instantiate the voting verifier:

   axelard tx wasm instantiate [voting verifier CODE ID] '{"service_registry_address":"axelar1hrpna9v7vs3stzyd4z3xf00676kf78zpe2u5ksvljswn2vnjp3ystlgl4x","service_name":"validators","source_gateway_address":"0xCa85f85C72df5f8428a440887CA7c449D94e0D0c","confirmation_height":1,"block_expiry":10,"source_chain":"test","rewards_address":"axelar1wkwy0xh89ksdgj9hr347dyd2dw7zesmtrue6kfzyml4vdtz6e5ws2pvc5e","voting_threshold":["9","10"]}' --from wallet --chain-id devnet-amplifier --gas auto --gas-adjustment 1.5 --gas-prices 0.007uamplifier --node http://devnet-amplifier.axelar.dev:26657 --keyring-backend test --label test-voting-verifier --no-admin
   

   Note the contract address in the output:

   {"height":"128761","txhash":"B122F59D82CC52C5E69DBEDAB4D4F41DFFC125312DBA4220EDD979A568637FD6","codespace":"","code":0,"data":"0A6F0A282F636F736D7761736D2E7761736D2E76312E4D7367496E7374616E7469617465436F6E747261637412430A416178656C6172317833393630747739636D6C3678737174767A7434676D77337363617561786464383372687339646D6C706A666A66397A397337716A783867306A","raw_log":"[{\"events\":[{\"type\":\"instantiate\",\"attributes\":[{\"key\":\"_contract_address\",\"value\":\"axelar1x3960tw9cml6xsqtvzt4gmw3scauaxdd83rhs9dmlpjfjf9z9s7qjx8g0j\"},{\"key\":\"code_id\",\"value\":\"9\"}]},{\"type\":\"message\",\"attributes\":[{\"key\":\"action\",\"value\":\"/cosmwasm.wasm.v1.MsgInstantiateContract\"},{\"key\":\"module\",\"value\":\"wasm\"},{\"key\":\"sender\",\"value\":\"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau\"}]},{\"type\":\"wasm-instantiated\",\"attributes\":[{\"key\":\"_contract_address\",\"value\":\"axelar1x3960tw9cml6xsqtvzt4gmw3scauaxdd83rhs9dmlpjfjf9z9s7qjx8g0j\"},{\"key\":\"service_name\",\"value\":\"validators\"},{\"key\":\"service_registry_contract\",\"value\":\"axelar1hrpna9v7vs3stzyd4z3xf00676kf78zpe2u5ksvljswn2vnjp3ystlgl4x\"},{\"key\":\"source_gateway_address\",\"value\":\"0xCa85f85C72df5f8428a440887CA7c449D94e0D0c\"},{\"key\":\"voting_threshold\",\"value\":\"[\\\"9\\\",\\\"10\\\"]\"},{\"key\":\"block_expiry\",\"value\":\"10\"},{\"key\":\"confirmation_height\",\"value\":\"1\"}]}]}]","logs":[{"msg_index":0,"log":"","events":[{"type":"instantiate","attributes":[{"key":"_contract_address","value":"axelar1x3960tw9cml6xsqtvzt4gmw3scauaxdd83rhs9dmlpjfjf9z9s7qjx8g0j"},{"key":"code_id","value":"9"}]},{"type":"message","attributes":[{"key":"action","value":"/cosmwasm.wasm.v1.MsgInstantiateContract"},{"key":"module","value":"wasm"},{"key":"sender","value":"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau"}]},{"type":"wasm-instantiated","attributes":[{"key":"_contract_address","value":"axelar1x3960tw9cml6xsqtvzt4gmw3scauaxdd83rhs9dmlpjfjf9z9s7qjx8g0j"},{"key":"service_name","value":"validators"},{"key":"service_registry_contract","value":"axelar1hrpna9v7vs3stzyd4z3xf00676kf78zpe2u5ksvljswn2vnjp3ystlgl4x"},{"key":"source_gateway_address","value":"0xCa85f85C72df5f8428a440887CA7c449D94e0D0c"},{"key":"voting_threshold","value":"[\"9\",\"10\"]"},{"key":"block_expiry","value":"10"},{"key":"confirmation_height","value":"1"}]}]}],"info":"","gas_wanted":"337608","gas_used":"183564","tx":null,"timestamp":"","events":[{"type":"coin_spent","attributes":[{"key":"c3BlbmRlcg==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"MjM2NHVhbXBsaWZpZXI=","index":true}]},{"type":"coin_received","attributes":[{"key":"cmVjZWl2ZXI=","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"YW1vdW50","value":"MjM2NHVhbXBsaWZpZXI=","index":true}]},{"type":"transfer","attributes":[{"key":"cmVjaXBpZW50","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"MjM2NHVhbXBsaWZpZXI=","index":true}]},{"type":"message","attributes":[{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"ZmVl","value":"MjM2NHVhbXBsaWZpZXI=","index":true},{"key":"ZmVlX3BheWVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"YWNjX3NlcQ==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1LzU=","index":true}]},{"type":"tx","attributes":[{"key":"c2lnbmF0dXJl","value":"aUZiWXlzbVQ0cVR0UjMyd1E3Wk9wMnhnQms2T3dVV3NsQmUvWHNleG04SUlocFQyWVc0ZWJsMFVlczVHL0hXd2NoOEJ4bzVYZWJtUDFZSHFLRVh0Unc9PQ==","index":true}]},{"type":"message","attributes":[{"key":"YWN0aW9u","value":"L2Nvc213YXNtLndhc20udjEuTXNnSW5zdGFudGlhdGVDb250cmFjdA==","index":true}]},{"type":"message","attributes":[{"key":"bW9kdWxl","value":"d2FzbQ==","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"instantiate","attributes":[{"key":"X2NvbnRyYWN0X2FkZHJlc3M=","value":"YXhlbGFyMXgzOTYwdHc5Y21sNnhzcXR2enQ0Z213M3NjYXVheGRkODNyaHM5ZG1scGpmamY5ejlzN3FqeDhnMGo=","index":true},{"key":"Y29kZV9pZA==","value":"OQ==","index":true}]},{"type":"wasm-instantiated","attributes":[{"key":"X2NvbnRyYWN0X2FkZHJlc3M=","value":"YXhlbGFyMXgzOTYwdHc5Y21sNnhzcXR2enQ0Z213M3NjYXVheGRkODNyaHM5ZG1scGpmamY5ejlzN3FqeDhnMGo=","index":true},{"key":"c2VydmljZV9uYW1l","value":"dmFsaWRhdG9ycw==","index":true},{"key":"c2VydmljZV9yZWdpc3RyeV9jb250cmFjdA==","value":"YXhlbGFyMWhycG5hOXY3dnMzc3R6eWQ0ejN4ZjAwNjc2a2Y3OHpwZTJ1NWtzdmxqc3duMnZuanAzeXN0bGdsNHg=","index":true},{"key":"c291cmNlX2dhdGV3YXlfYWRkcmVzcw==","value":"MHhDYTg1Zjg1QzcyZGY1Zjg0MjhhNDQwODg3Q0E3YzQ0OUQ5NGUwRDBj","index":true},{"key":"dm90aW5nX3RocmVzaG9sZA==","value":"WyI5IiwiMTAiXQ==","index":true},{"key":"YmxvY2tfZXhwaXJ5","value":"MTA=","index":true},{"key":"Y29uZmlybWF0aW9uX2hlaWdodA==","value":"MQ==","index":true}]}]}
   

2. Instantiate the gateway:

   axelard tx wasm instantiate [gateway CODE ID] '{"verifier_address":"axelar1x3960tw9cml6xsqtvzt4gmw3scauaxdd83rhs9dmlpjfjf9z9s7qjx8g0j","router_address":"axelar1fmsa0f5rs5jyauama96k0umzkktemqawrtn28zrjc0rvx47f68fqckxwuj"}' --from wallet --chain-id devnet-amplifier --gas auto --gas-adjustment 1.5 --gas-prices 0.007uamplifier --keyring-backend test --node http://devnet-amplifier.axelar.dev:26657 --keyring-backend test --label test-gateway --no-admin
   

   Note the contract address in the output:

   {"height":"128825","txhash":"215582F1D80C761F188A1A147127D1CBC4BD4F16466AED0CBE7CE1B008AFA3D7","codespace":"","code":0,"data":"0A6F0A282F636F736D7761736D2E7761736D2E76312E4D7367496E7374616E7469617465436F6E747261637412430A416178656C61723172636D7666736E37377064366D30346374716A33776375363670767277397032363563646C373277347A61726675703272763771707279673764","raw_log":"[{\"events\":[{\"type\":\"instantiate\",\"attributes\":[{\"key\":\"_contract_address\",\"value\":\"axelar1rcmvfsn77pd6m04ctqj3wcu66pvrw9p265cdl72w4zarfup2rv7qpryg7d\"},{\"key\":\"code_id\",\"value\":\"10\"}]},{\"type\":\"message\",\"attributes\":[{\"key\":\"action\",\"value\":\"/cosmwasm.wasm.v1.MsgInstantiateContract\"},{\"key\":\"module\",\"value\":\"wasm\"},{\"key\":\"sender\",\"value\":\"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau\"}]}]}]","logs":[{"msg_index":0,"log":"","events":[{"type":"instantiate","attributes":[{"key":"_contract_address","value":"axelar1rcmvfsn77pd6m04ctqj3wcu66pvrw9p265cdl72w4zarfup2rv7qpryg7d"},{"key":"code_id","value":"10"}]},{"type":"message","attributes":[{"key":"action","value":"/cosmwasm.wasm.v1.MsgInstantiateContract"},{"key":"module","value":"wasm"},{"key":"sender","value":"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau"}]}]}],"info":"","gas_wanted":"306362","gas_used":"167941","tx":null,"timestamp":"","events":[{"type":"coin_spent","attributes":[{"key":"c3BlbmRlcg==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"MjE0NXVhbXBsaWZpZXI=","index":true}]},{"type":"coin_received","attributes":[{"key":"cmVjZWl2ZXI=","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"YW1vdW50","value":"MjE0NXVhbXBsaWZpZXI=","index":true}]},{"type":"transfer","attributes":[{"key":"cmVjaXBpZW50","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"MjE0NXVhbXBsaWZpZXI=","index":true}]},{"type":"message","attributes":[{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"ZmVl","value":"MjE0NXVhbXBsaWZpZXI=","index":true},{"key":"ZmVlX3BheWVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"YWNjX3NlcQ==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1Lzc=","index":true}]},{"type":"tx","attributes":[{"key":"c2lnbmF0dXJl","value":"MS8vWm4xZGM4K0JCUWc2VnBTVUxFUUdzVFhocm5zUFBkR1VPS3hIYzZJTW5oVUdDUmNhangwTkU0QlVPSXpRekJQcCtCekh1RHFQY0plZk9MUCtvdnc9PQ==","index":true}]},{"type":"message","attributes":[{"key":"YWN0aW9u","value":"L2Nvc213YXNtLndhc20udjEuTXNnSW5zdGFudGlhdGVDb250cmFjdA==","index":true}]},{"type":"message","attributes":[{"key":"bW9kdWxl","value":"d2FzbQ==","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"instantiate","attributes":[{"key":"X2NvbnRyYWN0X2FkZHJlc3M=","value":"YXhlbGFyMXJjbXZmc243N3BkNm0wNGN0cWozd2N1NjZwdnJ3OXAyNjVjZGw3Mnc0emFyZnVwMnJ2N3FwcnlnN2Q=","index":true},{"key":"Y29kZV9pZA==","value":"MTA=","index":true}]}]}
   

3. Instantiate the multisig prover:

   axelard tx wasm instantiate [multisig prover CODE ID] '{"admin_address": "axelar1zlr7e5qf3sz7yf890rkh9tcnu87234k6k7ytd9","gateway_address":"axelar1rcmvfsn77pd6m04ctqj3wcu66pvrw9p265cdl72w4zarfup2rv7qpryg7d","multisig_address":"axelar1ufs3tlq4umljk0qfe8k5ya0x6hpavn897u2cnf9k0en9jr7qarqqa9263g","service_registry_address":"axelar1hrpna9v7vs3stzyd4z3xf00676kf78zpe2u5ksvljswn2vnjp3ystlgl4x","voting_verifier_address":"axelar1x3960tw9cml6xsqtvzt4gmw3scauaxdd83rhs9dmlpjfjf9z9s7qjx8g0j","destination_chain_id": "43113","signing_threshold": ["4","5"],"service_name": "validators","chain_name":"test","worker_set_diff_threshold": 1,"encoder": "abi","key_type": "ecdsa"}' --from wallet --chain-id devnet-amplifier --gas auto --gas-adjustment 1.5 --gas-prices 0.007uamplifier --node http://devnet-amplifier.axelar.dev:26657  --keyring-backend test --label test-prover --no-admin
   

   Note the contract address in the output:

   {"height":"129075","txhash":"717621FB153F75B6329CB03064EFE175C6545201B4E3E0667DCCE633147C00F4","codespace":"","code":0,"data":"0A6F0A282F636F736D7761736D2E7761736D2E76312E4D7367496E7374616E7469617465436F6E747261637412430A416178656C61723173346A776D373239646133753968723976656A386D77363575757A7A77767772646E70366C30726B37336D307865663267727A71336D306D7277","raw_log":"[{\"events\":[{\"type\":\"instantiate\",\"attributes\":[{\"key\":\"_contract_address\",\"value\":\"axelar1s4jwm729da3u9hr9vej8mw65uuzzwvwrdnp6l0rk73m0xef2grzq3m0mrw\"},{\"key\":\"code_id\",\"value\":\"11\"}]},{\"type\":\"message\",\"attributes\":[{\"key\":\"action\",\"value\":\"/cosmwasm.wasm.v1.MsgInstantiateContract\"},{\"key\":\"module\",\"value\":\"wasm\"},{\"key\":\"sender\",\"value\":\"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau\"}]}]}]","logs":[{"msg_index":0,"log":"","events":[{"type":"instantiate","attributes":[{"key":"_contract_address","value":"axelar1s4jwm729da3u9hr9vej8mw65uuzzwvwrdnp6l0rk73m0xef2grzq3m0mrw"},{"key":"code_id","value":"11"}]},{"type":"message","attributes":[{"key":"action","value":"/cosmwasm.wasm.v1.MsgInstantiateContract"},{"key":"module","value":"wasm"},{"key":"sender","value":"axelar1ypt7vtlj4c67ezex8nwc0vm0acf6d6evss2dau"}]}]}],"info":"","gas_wanted":"365482","gas_used":"197501","tx":null,"timestamp":"","events":[{"type":"coin_spent","attributes":[{"key":"c3BlbmRlcg==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"MjU1OXVhbXBsaWZpZXI=","index":true}]},{"type":"coin_received","attributes":[{"key":"cmVjZWl2ZXI=","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"YW1vdW50","value":"MjU1OXVhbXBsaWZpZXI=","index":true}]},{"type":"transfer","attributes":[{"key":"cmVjaXBpZW50","value":"YXhlbGFyMTd4cGZ2YWttMmFtZzk2MnlsczZmODR6M2tlbGw4YzVsNWg0Z3F1","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true},{"key":"YW1vdW50","value":"MjU1OXVhbXBsaWZpZXI=","index":true}]},{"type":"message","attributes":[{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"ZmVl","value":"MjU1OXVhbXBsaWZpZXI=","index":true},{"key":"ZmVlX3BheWVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"tx","attributes":[{"key":"YWNjX3NlcQ==","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1Lzk=","index":true}]},{"type":"tx","attributes":[{"key":"c2lnbmF0dXJl","value":"aEdKcVA4NXVwdVRjdEtFWDF0SDV1eXRXUml1L1JDTUlwTnl1Y0oyVFR3dHQ0ZTQ0YkVhVEovOXBrdkF5VzRWajZlQnhJYjFoZFFCeWFJMkJtZGx2VHc9PQ==","index":true}]},{"type":"message","attributes":[{"key":"YWN0aW9u","value":"L2Nvc213YXNtLndhc20udjEuTXNnSW5zdGFudGlhdGVDb250cmFjdA==","index":true}]},{"type":"message","attributes":[{"key":"bW9kdWxl","value":"d2FzbQ==","index":true},{"key":"c2VuZGVy","value":"YXhlbGFyMXlwdDd2dGxqNGM2N2V6ZXg4bndjMHZtMGFjZjZkNmV2c3MyZGF1","index":true}]},{"type":"instantiate","attributes":[{"key":"X2NvbnRyYWN0X2FkZHJlc3M=","value":"YXhlbGFyMXM0andtNzI5ZGEzdTlocjl2ZWo4bXc2NXV1enp3dndyZG5wNmwwcms3M20weGVmMmdyenEzbTBtcnc=","index":true},{"key":"Y29kZV9pZA==","value":"MTE=","index":true}]}]}
   

4. Send the chain’s gateway and multisig prover contract addresses to the Interop Labs team by filling out the Axelar Amplifier Integration Form. The team will register the chain and gateway with the router and authorize the prover.

Add verifiers to your chain

Every new chain will need a verifier, which requires running ampd and tofnd. See Become an Amplifier Verifier (Worker) for detailed instructions on how to do this on your machine.

Begin routing messages

Once your chain is registered with the protocol, it will need verifiers to begin routing messages. See Become an Amplifier Verifier (Worker) for instructions to onboard a verifier. Note that chain integrators will onboard on devnet-amplifier and not devnet-verifier.