Merge pull request #467 from valory-xyz/offchain-epic

Merge offchain-epic into main

Author: DIvyaNautiyal07

.github/workflows/release.yaml

@@ -19,7 +19,7 @@ jobs:
           python-version: ${{ matrix.python-versions }}
       - uses: maus007/docker-run-action-fork@v1
         with:
-            image: valory/open-autonomy-user:0.21.23
+            image: valory/open-autonomy-user:0.21.26
             options: -v ${{ github.workspace }}:/work
             run: |
               echo "Pushing Packages"
@@ -44,7 +44,7 @@ jobs:
       - name: Set up tag and vars
         uses: maus007/docker-run-action-fork@v1
         with:
-          image: valory/open-autonomy-user:0.21.23
+          image: valory/open-autonomy-user:0.21.26
           options: -v ${{ github.workspace }}:/work
           run: |
             echo "Setting Tag Images"
@@ -64,7 +64,7 @@ jobs:
       - uses: maus007/docker-run-action-fork@v1
         name: Build Images
         with:
-            image: valory/open-autonomy-user:0.21.23
+            image: valory/open-autonomy-user:0.21.26
             options: -v ${{ github.workspace }}:/work
             shell: bash
             run: |

README.md

@@ -5,7 +5,7 @@
 <h1 align="center" style="margin-bottom: 0;">
     Autonolas AI Mechs
     <br><a href="./LICENSE"><img alt="License: Apache-2.0" src="https://img.shields.io/github/license/valory-xyz/mech"></a>
-    <a href="https://pypi.org/project/open-autonomy/0.21.23/"><img alt="Framework: Open Autonomy 0.21.23" src="https://img.shields.io/badge/framework-Open%20Autonomy%200.21.23-blueviolet"></a>
+    <a href="https://pypi.org/project/open-autonomy/0.21.26/"><img alt="Framework: Open Autonomy 0.21.26" src="https://img.shields.io/badge/framework-Open%20Autonomy%200.21.26-blueviolet"></a>
     <!-- <a href="https://github.com/valory-xyz/mech/releases/latest">
     <img alt="Latest release" src="https://img.shields.io/github/v/release/valory-xyz/mech"> -->
     </a>

packages/packages.json

@@ -1,19 +1,20 @@
 {
     "dev": {
         "protocol/valory/websocket_client/0.1.0": "bafybeig6omutaqt5rbvidju4zc7pwwdi6tkagwu3dwiirosadyoo534v3q",
-        "contract/valory/balance_tracker/0.1.0": "bafybeibb7bzedhht262sn2t4vklcjcaa5fibermmcepnqi2wrcorkyz4qa",
+        "contract/valory/balance_tracker/0.1.0": "bafybeiayyxl643qfpw57vopytxgyd6flxxmwassswuxen7myekqaxdxxvi",
+        "contract/valory/balance_tracker_fixed_price_native/0.1.0": "bafybeihyaxqkyw2ulroqlhpfcgkrwtrwkhshn35fdq2ystraezwyco3k4u",
         "contract/valory/complementary_service_metadata/0.1.0": "bafybeihukaditdbnvhkxnt2bfqtclfnniw6l2dwks4dx3hhzlvt46ilduq",
-        "contract/valory/hash_checkpoint/0.1.0": "bafybeicvml7stv45k5ix44kc2c3xowxvl6m6pzosrkwbxq3ymnnju5g7oe",
-        "contract/valory/olas_mech/0.1.0": "bafybeifvxzldiclpk7ztinivtjaf3y7yfrkw677y73tb2cukkywbagawc4",
+        "contract/valory/hash_checkpoint/0.1.0": "bafybeih76qkq55amfkgqewmfzrqpffmgcg7aurgnpjhpzkhh6ek7i5mh3m",
+        "contract/valory/olas_mech/0.1.0": "bafybeigwnetiwhhvcdjmda2nmd2n35alytq5ftf7qionibht2sfgsl3rpm",
         "connection/valory/websocket_client/0.1.0": "bafybeid4cnbjpmzcsw3usg7umufgqyod2u3xfw5uso3vukt3n5hfuxvdea",
         "skill/valory/contract_subscription/0.1.0": "bafybeicqlkmfpttw4hbbaakr6xos62rd6ytjwkyzlfli4xpvl5yqcycf6q",
-        "skill/valory/delivery_rate_abci/0.1.0": "bafybeiaefr3eiajklnb6m4jtl7rpxr5t2lmrpizfy7gqkjem3qiewo7cz4",
-        "skill/valory/mech_abci/0.1.0": "bafybeifqmjqfdhs3beaswozr6zugsst43tq6ias7chg5tjayekcr7e45ai",
-        "skill/valory/task_execution/0.1.0": "bafybeifc56wu5xwjpjhfstgm6wbf6yptshhfbpqji7dsrtrdukkumiwwpq",
-        "skill/valory/task_submission_abci/0.1.0": "bafybeict3okafrtmy3hjnz2rlrcjjf5e2y7goqy5zr4svrvic2mlt54q2u",
+        "skill/valory/delivery_rate_abci/0.1.0": "bafybeiathwdfpcfqbipqbkslv6j22q5cvov4n3czmehzij3czrhdnlg42e",
+        "skill/valory/mech_abci/0.1.0": "bafybeib33ygqjlxsw4sl7t56zdlsui6kukk2wz6gspddrof2c3pjeisyem",
+        "skill/valory/task_execution/0.1.0": "bafybeib4ca677b4fbvtcf2zpfxjr7aob55qeuo7hhqjeenvhfs7ob7cujq",
+        "skill/valory/task_submission_abci/0.1.0": "bafybeie4gnqfzbizxqgpn56qgqkw76z23cj3kuued2dsysoampe7s4y5ou",
         "skill/valory/websocket_client/0.1.0": "bafybeid6oyycsrvk4duftffs5mrfgmcepibt3qe4om3kfzhwhilfq3ynay",
-        "agent/valory/mech/0.1.0": "bafybeiexugogtn7crjto2yxfwqj76y7w66cv7pabzdgjr3x5obztvjlemu",
-        "service/valory/mech/0.1.0": "bafybeiazqc66bhsw6gaw5eg2kng3utmlh654l6ymuumfdwnl65cwlplk2e"
+        "agent/valory/mech/0.1.0": "bafybeigmprmqsw4rga2yx4xjouysasyreym52lwl2ol7of7zou7wai3mju",
+        "service/valory/mech/0.1.0": "bafybeihptuvknnbiap4qxi2jwxt5t7okj7t227xocp5jsywnqyskmbzhly"
     },
     "third_party": {
         "protocol/open_aea/signing/1.0.0": "bafybeifsjmldwyki3beqyvdt5lzenrg6wyrqaar5plc5rpnvtc4zlentye",
@@ -26,24 +27,24 @@
         "protocol/valory/kv_store/0.1.0": "bafybeidlfrgv5rc7m7kj3j6u6umogmpy5bgcdzqtnsy3v75wn3likvyt6m",
         "protocol/valory/ledger_api/1.0.0": "bafybeiecq56phjfws36rgrefw6niyo4ezesloodsfis647mpm5ygqo4ysi",
         "protocol/valory/tendermint/0.1.0": "bafybeihzb7e32f7jcrzvubilqaxzmyk7ea6ss3pg3tliatdlrr76qeknyq",
-        "contract/valory/multisend/0.1.0": "bafybeidl74hh6g34kgxay3fzapz26dhfmc6s2kjnt6edmaxgrklhge3omy",
-        "contract/valory/gnosis_safe_proxy_factory/0.1.0": "bafybeifzd3duzsvbl76wzippvkqqvtn3shf7p57n43ffduxbsdreu3q4oy",
-        "contract/valory/service_registry/0.1.0": "bafybeihktixbuw7dz3oa2xzfvpuchbnid7eob224n3spm77xx2yj2wixcm",
-        "contract/valory/gnosis_safe/0.1.0": "bafybeif6cfjeruji2ovns6dhc5qivvjr7t7rh5mmudgh5gvumezin26qne",
-        "contract/valory/erc20/0.1.0": "bafybeig4tin5v5ahiiz4fysocl7gjhpjtgzko3w6cr2iz3q5a4bxutwewu",
-        "contract/valory/mech_marketplace/0.1.0": "bafybeifwx6owth25ud4pknu2s2vcxitt3w2eotjkavmwksdhmur2xd5qgy",
+        "contract/valory/multisend/0.1.0": "bafybeifqtf24h7lhhbairveqmq2klhvbswajmbpoyqj4xrgye7c22pxubi",
+        "contract/valory/gnosis_safe_proxy_factory/0.1.0": "bafybeigr6ugkp6bxwnbkecktotekcjihabb6eudh3bgcnjfdorwosygile",
+        "contract/valory/service_registry/0.1.0": "bafybeicbfffywnaaehptzasxsdoyguuurpleirsnor5xf7rqk57isjkury",
+        "contract/valory/gnosis_safe/0.1.0": "bafybeiek7zs3r5c4wspwwuvnhunc2ddvccbsuy3xccedbjffju5eywp3ju",
+        "contract/valory/erc20/0.1.0": "bafybeibpuyikvpmtaraca4lqokf3kf6jlpmafkqm6oixnps3ig23jfbllq",
+        "contract/valory/mech_marketplace/0.1.0": "bafybeigrcnjaycggulxyx2tsjub4ssjij66d7nfzsavo6gd54hm7beliiu",
         "connection/valory/http_client/0.23.0": "bafybeihel6sg2yayxu7lqygaswdgciaxpqrgsbl5rwx74c6znu5qz2edd4",
         "connection/valory/p2p_libp2p_client/0.1.0": "bafybeielj3jso3wvrarp5n5rq7llpw4vgxybqiyensgjalb5ubfiawwhhu",
         "connection/valory/ledger/0.19.0": "bafybeicynh5l5f5f5jpx72qwzis7jvmxk5p4eqltk32uxbj2pgu2x4rqz4",
         "connection/valory/http_server/0.22.0": "bafybeihs6dufyaa5l4uorplzx3wiyna5qlq2x43tmyl3yonkl265vspdle",
         "connection/valory/abci/0.1.0": "bafybeiafvaguchnkp2fmhf6gtayc3gpnxkglagghb4ukbqtouni5tveigi",
-        "connection/valory/ipfs/0.1.0": "bafybeihxytzo7tunodztv424xsnnufewbowucdsxtdzdcik2rskcn7plta",
+        "connection/valory/ipfs/0.1.0": "bafybeidob3tcdebjbm4ovwqoz4v2egf7nvoui3hu5on4o3apfchr6rpwwa",
         "connection/valory/kv_store/0.1.0": "bafybeib2tvoui6kndvrd2gpvs55rizpjee7mqjtjsfbr6fdp5hxslh6gd4",
         "skill/valory/abstract_abci/0.1.0": "bafybeie5et43th2nta76cd3kpm3fmurd7oyzk3qxim76octvt56m6r2poi",
-        "skill/valory/abstract_round_abci/0.1.0": "bafybeicioxhbhnsoqyqvkeevd7df7r2vubbiglyf7ucps2el73objazjsq",
-        "skill/valory/transaction_settlement_abci/0.1.0": "bafybeibv3tycpdhphlblu62zpcbjsj7hnwkutexxqagorkelhjlt4t4fii",
-        "skill/valory/registration_abci/0.1.0": "bafybeihjhbn5seffyu5cwugvm26fkamp3svhggmtzh577daijgl2ksxs3e",
-        "skill/valory/reset_pause_abci/0.1.0": "bafybeihc4ruh25s7wuunfy2b3k2n4eypyhvtry3usgom44wsymagbcr3ki",
-        "skill/valory/termination_abci/0.1.0": "bafybeibnnzry5kknci3z46gcjgutv4jid3ir6xn6a5adq3tx6v2e25augq"
+        "skill/valory/abstract_round_abci/0.1.0": "bafybeifkxnvvgsldkb4rgejsoon2mvrmrnl7asy2nhenwss7hpwg3myflu",
+        "skill/valory/transaction_settlement_abci/0.1.0": "bafybeihizaapype5sz7vlosms3nfo6jzfj4ujycuf5uthviq2otvmw6f6m",
+        "skill/valory/registration_abci/0.1.0": "bafybeif4n2esdjvquomdkwktv7eolepskpo5jlqrfda2abxjqzy2ljsxzi",
+        "skill/valory/reset_pause_abci/0.1.0": "bafybeifrnmlscfiki7wojs6zasppefupd2wkjyq6orhdllfppjud7isrxi",
+        "skill/valory/termination_abci/0.1.0": "bafybeih6sa2ttcvvjk7rcfn7ure2ws23kcfufssb4qmluzcfvednkfpvoi"
     }
 }

packages/valory/agents/mech/aea-config.yaml

@@ -10,21 +10,21 @@ connections:
 - valory/abci:0.1.0:bafybeiafvaguchnkp2fmhf6gtayc3gpnxkglagghb4ukbqtouni5tveigi
 - valory/http_client:0.23.0:bafybeihel6sg2yayxu7lqygaswdgciaxpqrgsbl5rwx74c6znu5qz2edd4
 - valory/http_server:0.22.0:bafybeihs6dufyaa5l4uorplzx3wiyna5qlq2x43tmyl3yonkl265vspdle
-- valory/ipfs:0.1.0:bafybeihxytzo7tunodztv424xsnnufewbowucdsxtdzdcik2rskcn7plta
+- valory/ipfs:0.1.0:bafybeidob3tcdebjbm4ovwqoz4v2egf7nvoui3hu5on4o3apfchr6rpwwa
 - valory/ledger:0.19.0:bafybeicynh5l5f5f5jpx72qwzis7jvmxk5p4eqltk32uxbj2pgu2x4rqz4
 - valory/p2p_libp2p_client:0.1.0:bafybeielj3jso3wvrarp5n5rq7llpw4vgxybqiyensgjalb5ubfiawwhhu
 - valory/websocket_client:0.1.0:bafybeid4cnbjpmzcsw3usg7umufgqyod2u3xfw5uso3vukt3n5hfuxvdea
 contracts:
-- valory/olas_mech:0.1.0:bafybeifvxzldiclpk7ztinivtjaf3y7yfrkw677y73tb2cukkywbagawc4
+- valory/olas_mech:0.1.0:bafybeigwnetiwhhvcdjmda2nmd2n35alytq5ftf7qionibht2sfgsl3rpm
 - valory/complementary_service_metadata:0.1.0:bafybeihukaditdbnvhkxnt2bfqtclfnniw6l2dwks4dx3hhzlvt46ilduq
-- valory/gnosis_safe:0.1.0:bafybeif6cfjeruji2ovns6dhc5qivvjr7t7rh5mmudgh5gvumezin26qne
-- valory/gnosis_safe_proxy_factory:0.1.0:bafybeifzd3duzsvbl76wzippvkqqvtn3shf7p57n43ffduxbsdreu3q4oy
-- valory/hash_checkpoint:0.1.0:bafybeicvml7stv45k5ix44kc2c3xowxvl6m6pzosrkwbxq3ymnnju5g7oe
-- valory/multisend:0.1.0:bafybeidl74hh6g34kgxay3fzapz26dhfmc6s2kjnt6edmaxgrklhge3omy
-- valory/service_registry:0.1.0:bafybeihktixbuw7dz3oa2xzfvpuchbnid7eob224n3spm77xx2yj2wixcm
-- valory/mech_marketplace:0.1.0:bafybeifwx6owth25ud4pknu2s2vcxitt3w2eotjkavmwksdhmur2xd5qgy
-- valory/balance_tracker:0.1.0:bafybeibb7bzedhht262sn2t4vklcjcaa5fibermmcepnqi2wrcorkyz4qa
-- valory/erc20:0.1.0:bafybeig4tin5v5ahiiz4fysocl7gjhpjtgzko3w6cr2iz3q5a4bxutwewu
+- valory/gnosis_safe:0.1.0:bafybeiek7zs3r5c4wspwwuvnhunc2ddvccbsuy3xccedbjffju5eywp3ju
+- valory/gnosis_safe_proxy_factory:0.1.0:bafybeigr6ugkp6bxwnbkecktotekcjihabb6eudh3bgcnjfdorwosygile
+- valory/hash_checkpoint:0.1.0:bafybeih76qkq55amfkgqewmfzrqpffmgcg7aurgnpjhpzkhh6ek7i5mh3m
+- valory/multisend:0.1.0:bafybeifqtf24h7lhhbairveqmq2klhvbswajmbpoyqj4xrgye7c22pxubi
+- valory/service_registry:0.1.0:bafybeicbfffywnaaehptzasxsdoyguuurpleirsnor5xf7rqk57isjkury
+- valory/mech_marketplace:0.1.0:bafybeigrcnjaycggulxyx2tsjub4ssjij66d7nfzsavo6gd54hm7beliiu
+- valory/balance_tracker:0.1.0:bafybeiayyxl643qfpw57vopytxgyd6flxxmwassswuxen7myekqaxdxxvi
+- valory/erc20:0.1.0:bafybeibpuyikvpmtaraca4lqokf3kf6jlpmafkqm6oixnps3ig23jfbllq
 protocols:
 - open_aea/signing:1.0.0:bafybeifsjmldwyki3beqyvdt5lzenrg6wyrqaar5plc5rpnvtc4zlentye
 - valory/abci:0.1.0:bafybeiak4pwac3pwjtd7weskxdhkrcopckr32vtazfbuteu6yqjkwarpte
@@ -38,16 +38,16 @@ protocols:
 - valory/websocket_client:0.1.0:bafybeig6omutaqt5rbvidju4zc7pwwdi6tkagwu3dwiirosadyoo534v3q
 skills:
 - valory/abstract_abci:0.1.0:bafybeie5et43th2nta76cd3kpm3fmurd7oyzk3qxim76octvt56m6r2poi
-- valory/abstract_round_abci:0.1.0:bafybeicioxhbhnsoqyqvkeevd7df7r2vubbiglyf7ucps2el73objazjsq
+- valory/abstract_round_abci:0.1.0:bafybeifkxnvvgsldkb4rgejsoon2mvrmrnl7asy2nhenwss7hpwg3myflu
 - valory/contract_subscription:0.1.0:bafybeicqlkmfpttw4hbbaakr6xos62rd6ytjwkyzlfli4xpvl5yqcycf6q
-- valory/mech_abci:0.1.0:bafybeifqmjqfdhs3beaswozr6zugsst43tq6ias7chg5tjayekcr7e45ai
-- valory/registration_abci:0.1.0:bafybeihjhbn5seffyu5cwugvm26fkamp3svhggmtzh577daijgl2ksxs3e
-- valory/reset_pause_abci:0.1.0:bafybeihc4ruh25s7wuunfy2b3k2n4eypyhvtry3usgom44wsymagbcr3ki
-- valory/delivery_rate_abci:0.1.0:bafybeiaefr3eiajklnb6m4jtl7rpxr5t2lmrpizfy7gqkjem3qiewo7cz4
-- valory/task_execution:0.1.0:bafybeifc56wu5xwjpjhfstgm6wbf6yptshhfbpqji7dsrtrdukkumiwwpq
-- valory/task_submission_abci:0.1.0:bafybeict3okafrtmy3hjnz2rlrcjjf5e2y7goqy5zr4svrvic2mlt54q2u
-- valory/termination_abci:0.1.0:bafybeibnnzry5kknci3z46gcjgutv4jid3ir6xn6a5adq3tx6v2e25augq
-- valory/transaction_settlement_abci:0.1.0:bafybeibv3tycpdhphlblu62zpcbjsj7hnwkutexxqagorkelhjlt4t4fii
+- valory/mech_abci:0.1.0:bafybeib33ygqjlxsw4sl7t56zdlsui6kukk2wz6gspddrof2c3pjeisyem
+- valory/registration_abci:0.1.0:bafybeif4n2esdjvquomdkwktv7eolepskpo5jlqrfda2abxjqzy2ljsxzi
+- valory/reset_pause_abci:0.1.0:bafybeifrnmlscfiki7wojs6zasppefupd2wkjyq6orhdllfppjud7isrxi
+- valory/delivery_rate_abci:0.1.0:bafybeiathwdfpcfqbipqbkslv6j22q5cvov4n3czmehzij3czrhdnlg42e
+- valory/task_execution:0.1.0:bafybeib4ca677b4fbvtcf2zpfxjr7aob55qeuo7hhqjeenvhfs7ob7cujq
+- valory/task_submission_abci:0.1.0:bafybeie4gnqfzbizxqgpn56qgqkw76z23cj3kuued2dsysoampe7s4y5ou
+- valory/termination_abci:0.1.0:bafybeih6sa2ttcvvjk7rcfn7ure2ws23kcfufssb4qmluzcfvednkfpvoi
+- valory/transaction_settlement_abci:0.1.0:bafybeihizaapype5sz7vlosms3nfo6jzfj4ujycuf5uthviq2otvmw6f6m
 - valory/websocket_client:0.1.0:bafybeid6oyycsrvk4duftffs5mrfgmcepibt3qe4om3kfzhwhilfq3ynay
 default_ledger: ethereum
 required_ledgers:
@@ -92,13 +92,13 @@ dependencies:
     version: '>=6'
   multidict: {}
   open-aea-cli-ipfs:
-    version: ==2.2.7
+    version: ==2.2.9
   open-aea-ledger-cosmos:
-    version: ==2.2.7
+    version: ==2.2.9
   open-aea-ledger-ethereum:
-    version: ==2.2.7
+    version: ==2.2.9
   open-aea-test-autonomy:
-    version: ==0.21.23
+    version: ==0.21.26
   openapi-core:
     version: <0.23,>=0.22
   openapi-spec-validator:

packages/valory/contracts/balance_tracker/build/BalanceTracker.json

@@ -134,3 +134,19 @@ def get_process_payment_tx(
             ledger_api, contract_address, sender_address, tx_data
         ).pop("data")
         return {"data": bytes.fromhex(tx_data[2:]), "simulation_ok": simulation_ok}  # type: ignore
+
+    @classmethod
+    def build_deposit_for_data(
+        cls,
+        ledger_api: EthereumApi,
+        contract_address: str,
+        account: str,
+        amount: int,
+    ) -> JSONLike:
+        """Encode depositFor(account, amount) for a Safe multisend batch."""
+        contract_instance = cls.get_instance(ledger_api, contract_address)
+        data = contract_instance.encode_abi(
+            abi_element_identifier="depositFor",
+            args=[account, amount],
+        )
+        return {"data": bytes.fromhex(data[2:])}  # type: ignore

packages/valory/contracts/balance_tracker/contract.py

@@ -7,13 +7,15 @@ license: Apache-2.0
 aea_version: '>=2.0.0, <3.0.0'
 fingerprint:
   __init__.py: bafybeigim3df7lcxmr4gjugo73fyrwfkkpll7jykgjp7nij6ugbkc7igyy
-  build/BalanceTracker.json: bafybeide7fhlz2x56wiroancnk4n5grgl2wginv52ybhg5bsgubcokw3yu
-  contract.py: bafybeigmh3gtqsixhrfa735gtuzrem77hluq76ekbxa2mxwfv6cfmo5yvm
+  build/BalanceTracker.json: bafybeig2ywevvapgqoprxnnkid3atvq6qg7aqfhyd2uvqokdnydcfp2is4
+  contract.py: bafybeiffqbk4qv7k6uonxwwznfedx6jo63lcyqyp5qgbcbv2zvos24yz7u
+  tests/__init__.py: bafybeicrl6tanguy6dyh7lu7lptym5nclaqyhf3j3i32ykfsz7vvrz2snm
+  tests/test_contract.py: bafybeihjlnu6iazwxnd4ojapr3t5ygztaeqjmuk4lyacgi4gzkqg3oly2y
 fingerprint_ignore_patterns: []
 class_name: BalanceTrackerContract
 contract_interface_paths:
   ethereum: build/BalanceTracker.json
 dependencies:
   open-aea-ledger-ethereum:
-    version: ==2.2.7
+    version: ==2.2.9
 contracts: []

packages/valory/contracts/balance_tracker/contract.yaml

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# ------------------------------------------------------------------------------
+#
+#   Copyright 2026 Valory AG
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+# ------------------------------------------------------------------------------
+
+"""Tests for the balance_tracker contract package."""

packages/valory/contracts/balance_tracker/tests/__init__.py

@@ -0,0 +1,83 @@
+# -*- coding: utf-8 -*-
+# ------------------------------------------------------------------------------
+#
+#   Copyright 2026 Valory AG
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+# ------------------------------------------------------------------------------
+
+"""Encode-assertion tests for the balance_tracker contract package."""
+
+import json
+from pathlib import Path
+from unittest.mock import patch
+
+from web3 import Web3
+
+from packages.valory.contracts.balance_tracker.contract import BalanceTrackerContract
+
+_ABI_PATH = Path(__file__).parent.parent / "build" / "BalanceTracker.json"
+_ACCOUNT = "0x1000000000000000000000000000000000000001"
+_AMOUNT = 12345
+_DEPOSIT_FOR_SELECTOR = "2f4f21e2"
+
+
+def _web3_contract() -> object:
+    """Build a Web3 contract instance from the packaged ABI."""
+    with open(_ABI_PATH) as f:
+        artifact = json.load(f)
+    return Web3().eth.contract(abi=artifact["abi"])
+
+
+class TestBuildDepositForData:
+    """`build_deposit_for_data` produces well-formed `depositFor(account, amount)` calldata."""
+
+    def test_calldata_starts_with_deposit_for_selector(self) -> None:
+        """The 4-byte selector matches keccak256("depositFor(address,uint256)")[:4]."""
+        with patch.object(
+            BalanceTrackerContract, "get_instance", return_value=_web3_contract()
+        ):
+            result = BalanceTrackerContract.build_deposit_for_data(
+                ledger_api=None,  # patched away
+                contract_address="0x0000000000000000000000000000000000000000",
+                account=_ACCOUNT,
+                amount=_AMOUNT,
+            )
+        assert result["data"][:4].hex() == _DEPOSIT_FOR_SELECTOR
+
+    def test_calldata_has_expected_length(self) -> None:
+        """4-byte selector + 32-byte address + 32-byte uint256 = 68 bytes."""
+        with patch.object(
+            BalanceTrackerContract, "get_instance", return_value=_web3_contract()
+        ):
+            result = BalanceTrackerContract.build_deposit_for_data(
+                ledger_api=None,
+                contract_address="0x0000000000000000000000000000000000000000",
+                account=_ACCOUNT,
+                amount=_AMOUNT,
+            )
+        assert len(result["data"]) == 68
+
+    def test_calldata_encodes_amount_argument(self) -> None:
+        """The last 32 bytes decode to the supplied amount."""
+        with patch.object(
+            BalanceTrackerContract, "get_instance", return_value=_web3_contract()
+        ):
+            result = BalanceTrackerContract.build_deposit_for_data(
+                ledger_api=None,
+                contract_address="0x0000000000000000000000000000000000000000",
+                account=_ACCOUNT,
+                amount=_AMOUNT,
+            )
+        assert int.from_bytes(result["data"][-32:], "big") == _AMOUNT