Go

go get github.com/solana-foundation/solana-keychain/go/core/v2                # Interfaces, errors, helpers
go get github.com/solana-foundation/solana-keychain/go/signers/memory/v2      # Local keypair signer
go get github.com/solana-foundation/solana-keychain/go/signers/vault/v2       # HashiCorp Vault
go get github.com/solana-foundation/solana-keychain/go/signers/awskms/v2      # AWS KMS
go get github.com/solana-foundation/solana-keychain/go/signers/gcpkms/v2      # GCP KMS
go get github.com/solana-foundation/solana-keychain/go/signers/privy/v2       # Privy
go get github.com/solana-foundation/solana-keychain/go/signers/turnkey/v2     # Turnkey
go get github.com/solana-foundation/solana-keychain/go/signers/fireblocks/v2  # Fireblocks
go get github.com/solana-foundation/solana-keychain/go/signers/cdp/v2         # Coinbase Developer Platform
go get github.com/solana-foundation/solana-keychain/go/signers/crossmint/v2   # Crossmint
go get github.com/solana-foundation/solana-keychain/go/signers/dfns/v2        # Dfns
go get github.com/solana-foundation/solana-keychain/go/signers/openfort/v2    # Openfort
go get github.com/solana-foundation/solana-keychain/go/signers/para/v2        # Para
go get github.com/solana-foundation/solana-keychain/go/signers/utila/v2       # Utila
go get github.com/solana-foundation/solana-keychain/go/signers/fordefi/v2     # Fordefi

import (
	"context"
	"fmt"

	"github.com/solana-foundation/solana-go/v2"
	"github.com/solana-foundation/solana-keychain/go/core/v2"
	"github.com/solana-foundation/solana-keychain/go/signers/memory/v2"
)

func signWithKeychain(ctx context.Context, tx *solana.Transaction) error {
	signer, err := memory.New(memory.Config{PrivateKeyPath: "/path/to/id.json"})
	if err != nil {
		return err
	}

	if !signer.IsAvailable(ctx) {
		return core.NewSignerError(core.CodeNotAvailable, "signer offline")
	}

	result, err := signer.SignTransaction(ctx, tx)
	if err != nil {
		return err
	}
	fmt.Println("signature:", result.Signature)
	fmt.Println("complete:", result.IsComplete())
	// result.EncodedTransaction is the base64 wire transaction
	return nil
}

switch s := signer.(type) {
case core.SendingSigner:
	sig, err := s.SignAndSendTransaction(ctx, tx)
case core.ModifyingSigner:
	signed, err := s.ModifyAndSignTransaction(ctx, tx)
case core.TransactionSigner:
	signed, err := s.SignTransaction(ctx, tx)
}

import "github.com/solana-foundation/solana-go/v2/rpc"

client := rpc.New("https://api.devnet.solana.com")

sig, err := core.SignAndSendTransaction(ctx, signer, tx,
	func(ctx context.Context, encoded string) (solana.Signature, error) {
		return client.SendEncodedTransaction(ctx, encoded)
	})

sigs, err := core.SignMessages(ctx, signer, [][]byte{msg1, msg2}, core.BatchOptions{
	MaxConcurrency: 4, // 0 = unbounded
	RequestDelay:   50 * time.Millisecond,
})

signed, err := core.SignTransactions(ctx, signer, txs, core.BatchOptions{})

import "github.com/solana-foundation/solana-keychain/go/signers/memory/v2"

signer, err := memory.New(memory.Config{
	PrivateKeyPath: "/path/to/id.json",
})

import "github.com/solana-foundation/solana-keychain/go/signers/vault/v2"

signer, err := vault.New(vault.Config{
	VaultAddr: "https://vault.example.com:8200",
	Token:     "hvs.xxxxx",
	KeyName:   "my-solana-key",
	Pubkey:    "base58_public_key",
})

import "github.com/solana-foundation/solana-keychain/go/signers/awskms/v2"

signer, err := awskms.New(ctx, awskms.Config{
	KeyID:     "alias/my-solana-key",
	PublicKey: "base58_public_key",
	Region:    "us-east-1", // optional
})

import "github.com/solana-foundation/solana-keychain/go/signers/gcpkms/v2"

signer, err := gcpkms.New(ctx, gcpkms.Config{
	KeyName:   "projects/my-project/locations/us-east1/keyRings/my-ring/cryptoKeys/my-key/cryptoKeyVersions/1",
	PublicKey: "base58_public_key",
})
if err != nil {
	return err
}
defer signer.Close()

import "github.com/solana-foundation/solana-keychain/go/signers/privy/v2"

signer, err := privy.New(ctx, privy.Config{
	AppID:     "app_id",
	AppSecret: "app_secret",
	WalletID:  "wallet_id",
})

import "github.com/solana-foundation/solana-keychain/go/signers/turnkey/v2"

signer, err := turnkey.New(turnkey.Config{
	APIPublicKey:   "api_public_key",
	APIPrivateKey:  "api_private_key",
	OrganizationID: "org_id",
	PrivateKeyID:   "private_key_id",
	PublicKey:      "base58_public_key",
})

import "github.com/solana-foundation/solana-keychain/go/signers/fireblocks/v2"

signer, err := fireblocks.New(ctx, fireblocks.Config{
	APIKey:         "api_key",
	PrivateKeyPEM:  "-----BEGIN RSA PRIVATE KEY-----\n...",
	VaultAccountID: "0",
	AssetID:        "SOL",  // or "SOL_TEST" for devnet
	UseProgramCall: false, // true signs via sign-only PROGRAM_CALL (legacy/v0, hot wallet)
})

import "github.com/solana-foundation/solana-keychain/go/signers/cdp/v2"

signer, err := cdp.New(cdp.Config{
	APIKeyID:     "api_key_id",
	APIKeySecret: "api_key_secret", // base64 Ed25519
	WalletSecret: "wallet_secret",  // base64 PKCS#8 DER
	Address:      "base58_address",
	Network:      cdp.NetworkMainnet, // or cdp.NetworkDevnet; required for address lookup tables
})

import "github.com/solana-foundation/solana-keychain/go/signers/crossmint/v2"

signer, err := crossmint.New(ctx, crossmint.Config{
	APIKey:        "api_key",
	WalletLocator: "wallet_locator",
	SignerSecret:  "", // optional xmsk1_ secret: auto-approves what Crossmint presents
})

sig, err := signer.SignAndSendTransaction(ctx, tx)

import "github.com/solana-foundation/solana-keychain/go/signers/dfns/v2"

signer, err := dfns.New(ctx, dfns.Config{
	AuthToken:     "auth_token",
	CredID:        "cred_id",
	PrivateKeyPEM: "-----BEGIN EC PRIVATE KEY-----\n...",
	WalletID:      "wallet_id",
})

import "github.com/solana-foundation/solana-keychain/go/signers/openfort/v2"

signer, err := openfort.New(ctx, openfort.Config{
	SecretKey:    "sk_live_...",
	AccountID:    "acc_...",
	WalletSecret: "wallet_secret", // base64 PKCS#8 DER or PEM
})

import "github.com/solana-foundation/solana-keychain/go/signers/para/v2"

signer, err := para.New(ctx, para.Config{
	APIKey:   "sk_...",
	WalletID: "wallet_id",
})

import "github.com/solana-foundation/solana-keychain/go/signers/utila/v2"

signer, err := utila.New(ctx, utila.Config{
	ServiceAccountEmail:         "sa@example.com",
	ServiceAccountPrivateKeyPEM: "-----BEGIN PRIVATE KEY-----\n...",
	VaultID:                     "vault_id",
	WalletID:                    "wallet_id",
	Network:                     "networks/solana-devnet",
})

import "github.com/solana-foundation/solana-keychain/go/signers/fordefi/v2"

signer, err := fordefi.NewNativeAuto(ctx, fordefi.Config{
	AccessToken:   os.Getenv("FORDEFI_ACCESS_TOKEN"),
	VaultID:       os.Getenv("FORDEFI_VAULT_ID"),
	PublicKey:     os.Getenv("FORDEFI_PUBLIC_KEY"), // Solana vault address (base58)
	PrivateKeyPEM: string(pemBytes),
	Chain:         fordefi.ChainSolanaDevnet, // or fordefi.ChainSolanaMainnet
	Fee: &fordefi.Fee{
		Type:          fordefi.FeeTypePriority,
		PriorityLevel: fordefi.PriorityMedium,
	},
})

sig, err := signer.SignAndSendTransaction(ctx, tx)

signer, err := fordefi.NewNativeManual(ctx, fordefi.Config{
	AccessToken:   os.Getenv("FORDEFI_ACCESS_TOKEN"),
	VaultID:       os.Getenv("FORDEFI_VAULT_ID"),
	PublicKey:     os.Getenv("FORDEFI_PUBLIC_KEY"),
	PrivateKeyPEM: string(pemBytes),
	Chain:         fordefi.ChainSolanaDevnet,
	PushMode:      fordefi.PushModeManual,
})

signed, err := signer.ModifyAndSignTransaction(ctx, tx)

signer, err := fordefi.NewBlackBox(ctx, fordefi.Config{
	AccessToken:   os.Getenv("FORDEFI_ACCESS_TOKEN"),
	VaultID:       os.Getenv("FORDEFI_BB_VAULT_ID"),
	PublicKey:     os.Getenv("FORDEFI_BB_PUBLIC_KEY"),
	PrivateKeyPEM: string(pemBytes),
})

sig, err := core.SignAndSendTransaction(ctx, signer, tx, send)
var se *core.SignerError
if errors.As(err, &se) && se.Code == core.CodeBroadcastUnconfirmed {
	// Reconcile se.ProviderTxID, se.IdempotencyKey or se.TransactionSignature
	// with the provider before retrying.
}