Integration Guides
Vault-by-vault guides for integrating Nest mint and redemption flows on EVM chains and Solana.
These guides are organized one vault per page. Use the Actions API path first for app, wallet, and backend transaction-builder integrations. Use the direct contract path only when your integration needs lower-level control over quoting, compliance, approvals, and redemption state.
Outline
Choose a vault guide
| Guide | Slug | Chains | Deposit |
|---|---|---|---|
| nTBILL Integration Nest Treasury Vault | nest-treasury-vault |     |    |
| nALPHA Integration Nest Alpha Vault | nest-alpha-vault | | |
| nBASIS Integration Nest Basis Vault | nest-basis-vault | | |
| nOPAL Integration Nest BlackOpal LiquidStone II Vault | nest-opal-vault | | |
| nCREDIT Integration Nest Credit Vault | nest-credit-vault | | |
| nWISDOM Integration Nest Wisdom Vault | nest-wisdom-vault | | |
| nACRDX Integration Nest ACRDX Vault | nest-acrdx-vault | | |
| nLCRD Integration Nest Liquid Credit Vault | nest-lcrd-vault | | |
| nFXCF Integration Nest FalconX CLO Vault | nest-falconx-clo | | |
| nCLOA Integration Nest BlackRock iShares AAA CLO Active ETF Vault | nest-cloa-vault | | |
| nAXI Integration Nest AXI Vault | nest-axi-vault | | |
| FACTOR Integration Plume Factor Vault | plume-factor-vault | | |
Recommended integration paths
| Path | Best for | Primary interface | Notes |
|---|---|---|---|
| EVM Actions API | Apps, wallets, custodians, backend transaction builders | https://api.nest.credit/v1/actions | Builds same-chain EVM transaction bundles for supported vault, chain, and asset combinations. |
| Direct EVM contracts | Protocol integrations and advanced backend flows | ERC-20, NestVaultPredicateProxy, NestVault | Requires the integrator to handle compliance, quoting, allowance, calldata, simulation, and redemption lifecycle. |
| Solana transaction builder | Solana wallets and apps | https://api.nest.credit/v1/solana | Returns base64 Solana transactions for the user's wallet to sign and broadcast. |
The EVM Actions API OpenAPI JSON is available at https://api.nest.credit/v1/actions/docs.
Common implementation rules
- Treat every API amount as a raw integer amount, not a decimal UI amount.
- Use the decimals returned by the API when rendering user-facing amounts.
- Execute returned EVM transactions in order.
- Never assume an approval transaction is present. If allowance is already sufficient, the API can omit it.
- Re-quote close to the time the user signs.
- User-facing apps should keep API simulation enabled.
- For direct EVM integrations, validate the selected vault, chain, asset, and compliance message before submitting transactions.