feat: add Sapien Vault TypeScript action provider - #1
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Add an EVM action provider so AgentKit agents can deposit SAPIEN, withdraw or redeem vSAPIEN, and read position state on the Base mainnet ERC-4626 Sapien Vault. Co-authored-by: Chad <xhad@users.noreply.github.com>
Prevent a leftover approve call from the insufficient-allowance deposit test from failing the skip-approve assertion. Co-authored-by: Chad <xhad@users.noreply.github.com>
xhad
marked this pull request as ready for review
September 10, 2026 06:44
Remove RewardsController. Keep SAPIEN approve as an internal deposit helper only. Add get_vault_totals, tranche fields on get_position, and vSAPIEN transfer with matured/available checks. Co-authored-by: Chad <xhad@users.noreply.github.com>
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Summary
Adds a TypeScript Sapien Vault action provider for AgentKit so agents can deposit, withdraw or redeem, transfer vSAPIEN shares, and read vault totals plus tranche position state on the Sapien Vault (Base ERC-4626).
Upstream: coinbase#1493
Actions
deposit— ERC-4626 deposit. Approves SAPIEN internally only when allowance is insufficient (not a public action)withdraw— ERC-4626 withdraw back to SAPIENredeem— ERC-4626 redeem by vSAPIEN share amounttransfer— ERC-20 transfer of matured, unlocked vSAPIEN sharesget_position— shares, assets, matured/pending tranches, available balance, locked stake,depositAgeStatusget_vault_totals—totalAssetsand total shares (totalSupply)There is no standalone
approveaction.Network
Base mainnet only (
supportsNetworkgated). Other chains get a clear error from each action.Contracts (EIP-55)
0x60Bf63729f688287a450299962b36Cef0aFfaa420xC729777d0470F30612B1564Fd96E8Dd26f5814E3Notes
@coinbase/agentkit).Test plan
cd typescript/agentkit && pnpm test(sapienVault: 33 passed)