diff --git a/api/error_response.go b/api/error_response.go
index 62fd3085..0c20b678 100644
--- a/api/error_response.go
+++ b/api/error_response.go
@@ -1,6 +1,7 @@
 package api
 
 import (
+	"errors"
 	"net/http"
 
 	"github.com/gofiber/fiber/v2"
@@ -22,6 +23,11 @@ func errorHandler(logger *zap.Logger) func(*fiber.Ctx, error) error {
 			code = http.StatusNotFound
 		}
 
+		var e *fiber.Error
+		if errors.As(err, &e) {
+			code = e.Code
+		}
+
 		if code > 499 {
 			logger.Error(err.Error(),
 				zap.String("url", ctx.OriginalURL()))
diff --git a/api/spl/address_lookup_table.go b/api/spl/address_lookup_table.go
new file mode 100644
index 00000000..4d5409ca
--- /dev/null
+++ b/api/spl/address_lookup_table.go
@@ -0,0 +1,43 @@
+package spl
+
+import (
+	bin "github.com/gagliardetto/binary"
+	"github.com/gagliardetto/solana-go"
+)
+
+type AddressLookupTableMeta struct {
+	DeactivationSlot           uint64
+	LastExtendedSlot           uint64
+	LastExtendedSlotStartIndex uint8
+	Authority                  []solana.PublicKey
+}
+
+type AddressLookupTable struct {
+	State     uint32
+	Meta      AddressLookupTableMeta
+	Addresses []solana.PublicKey
+}
+
+func (inst *AddressLookupTable) UnmarshalWithDecoder(decoder *bin.Decoder) error {
+	err := decoder.Decode(&inst.State)
+	if err != nil {
+		return err
+	}
+	err = decoder.Decode(&inst.Meta)
+	if err != nil {
+		return err
+	}
+	err = decoder.SetPosition(56)
+	if err != nil {
+		return err
+	}
+	for decoder.HasRemaining() {
+		pub := &solana.PublicKey{}
+		err = decoder.Decode(pub)
+		if err != nil {
+			return err
+		}
+		inst.Addresses = append(inst.Addresses, *pub)
+	}
+	return err
+}
diff --git a/api/solana/programs/reward_manager/ChangeManagerAccount.go b/api/spl/programs/reward_manager/ChangeManagerAccount.go
similarity index 100%
rename from api/solana/programs/reward_manager/ChangeManagerAccount.go
rename to api/spl/programs/reward_manager/ChangeManagerAccount.go
diff --git a/api/solana/programs/reward_manager/CreateSender.go b/api/spl/programs/reward_manager/CreateSender.go
similarity index 100%
rename from api/solana/programs/reward_manager/CreateSender.go
rename to api/spl/programs/reward_manager/CreateSender.go
diff --git a/api/solana/programs/reward_manager/CreateSenderPublic.go b/api/spl/programs/reward_manager/CreateSenderPublic.go
similarity index 100%
rename from api/solana/programs/reward_manager/CreateSenderPublic.go
rename to api/spl/programs/reward_manager/CreateSenderPublic.go
diff --git a/api/solana/programs/reward_manager/DeleteSender.go b/api/spl/programs/reward_manager/DeleteSender.go
similarity index 100%
rename from api/solana/programs/reward_manager/DeleteSender.go
rename to api/spl/programs/reward_manager/DeleteSender.go
diff --git a/api/solana/programs/reward_manager/DeleteSenderPublic.go b/api/spl/programs/reward_manager/DeleteSenderPublic.go
similarity index 100%
rename from api/solana/programs/reward_manager/DeleteSenderPublic.go
rename to api/spl/programs/reward_manager/DeleteSenderPublic.go
diff --git a/api/solana/programs/reward_manager/EvaluateAttestations.go b/api/spl/programs/reward_manager/EvaluateAttestations.go
similarity index 100%
rename from api/solana/programs/reward_manager/EvaluateAttestations.go
rename to api/spl/programs/reward_manager/EvaluateAttestations.go
diff --git a/api/solana/programs/reward_manager/EvaluateAttestations_test.go b/api/spl/programs/reward_manager/EvaluateAttestations_test.go
similarity index 97%
rename from api/solana/programs/reward_manager/EvaluateAttestations_test.go
rename to api/spl/programs/reward_manager/EvaluateAttestations_test.go
index 99d21827..cd9f659d 100644
--- a/api/solana/programs/reward_manager/EvaluateAttestations_test.go
+++ b/api/spl/programs/reward_manager/EvaluateAttestations_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/hex"
 	"testing"
 
-	"bridgerton.audius.co/api/solana/programs/reward_manager"
+	"bridgerton.audius.co/api/spl/programs/reward_manager"
 	"github.com/gagliardetto/solana-go"
 	"github.com/stretchr/testify/require"
 )
diff --git a/api/solana/programs/reward_manager/Init.go b/api/spl/programs/reward_manager/Init.go
similarity index 100%
rename from api/solana/programs/reward_manager/Init.go
rename to api/spl/programs/reward_manager/Init.go
diff --git a/api/solana/programs/reward_manager/SubmitAttestation.go b/api/spl/programs/reward_manager/SubmitAttestation.go
similarity index 100%
rename from api/solana/programs/reward_manager/SubmitAttestation.go
rename to api/spl/programs/reward_manager/SubmitAttestation.go
diff --git a/api/spl/programs/reward_manager/accounts.go b/api/spl/programs/reward_manager/accounts.go
new file mode 100644
index 00000000..d67cf503
--- /dev/null
+++ b/api/spl/programs/reward_manager/accounts.go
@@ -0,0 +1,49 @@
+package reward_manager
+
+import (
+	"encoding/hex"
+	"strings"
+
+	"github.com/gagliardetto/solana-go"
+)
+
+type RewardManagerState struct {
+	Version      uint8
+	TokenAccount solana.PublicKey
+	Manager      solana.PublicKey
+	MinVotes     uint8
+}
+
+func deriveAuthority(programId solana.PublicKey, state solana.PublicKey) (solana.PublicKey, uint8, error) {
+	seeds := make([][]byte, 1)
+	seeds[0] = state.Bytes()[0:32]
+	return solana.FindProgramAddress(seeds, programId)
+}
+
+func deriveSender(programId solana.PublicKey, authority solana.PublicKey, ethAddress string) (solana.PublicKey, uint8, error) {
+	senderSeedPrefix := []byte(SenderSeedPrefix)
+	// Remove 0x and decode hex
+	decodedEthAddress, err := hex.DecodeString(strings.TrimPrefix(ethAddress, "0x"))
+	if err != nil {
+		return solana.PublicKey{}, 0, err
+	}
+	// Pad the eth address if necessary w/ leading 0
+	senderSeed := make([]byte, len(senderSeedPrefix)+EthAddressByteLength)
+	copy(senderSeed, senderSeedPrefix)
+	copy(senderSeed[len(senderSeed)-len(decodedEthAddress):], decodedEthAddress)
+	return solana.FindProgramAddress([][]byte{authority.Bytes()[0:32], senderSeed}, programId)
+}
+
+func deriveAttestations(programId solana.PublicKey, authority solana.PublicKey, disbursementId string) (solana.PublicKey, uint8, error) {
+	attestationsSeed := make([]byte, len(AttestationsSeedPrefix)+len(disbursementId))
+	copy(attestationsSeed, []byte(AttestationsSeedPrefix))
+	copy(attestationsSeed[len([]byte(AttestationsSeedPrefix)):], disbursementId)
+	return solana.FindProgramAddress([][]byte{authority.Bytes()[0:32], attestationsSeed}, programId)
+}
+
+func deriveDisbursement(programId solana.PublicKey, authority solana.PublicKey, disbursementId string) (solana.PublicKey, uint8, error) {
+	disbursementSeed := make([]byte, len(DisbursementSeedPrefix)+len(disbursementId))
+	copy(disbursementSeed, []byte(DisbursementSeedPrefix))
+	copy(disbursementSeed[len([]byte(DisbursementSeedPrefix)):], disbursementId)
+	return solana.FindProgramAddress([][]byte{authority.Bytes()[0:32], disbursementSeed}, programId)
+}
diff --git a/api/solana/programs/reward_manager/instruction.go b/api/spl/programs/reward_manager/instruction.go
similarity index 64%
rename from api/solana/programs/reward_manager/instruction.go
rename to api/spl/programs/reward_manager/instruction.go
index fb980e69..209aae8e 100644
--- a/api/solana/programs/reward_manager/instruction.go
+++ b/api/spl/programs/reward_manager/instruction.go
@@ -2,7 +2,6 @@ package reward_manager
 
 import (
 	"bytes"
-	"encoding/hex"
 	"fmt"
 
 	bin "github.com/gagliardetto/binary"
@@ -126,37 +125,3 @@ func DecodeInstruction(accounts []*solana.AccountMeta, data []byte) (*Instructio
 	}
 	return inst, nil
 }
-
-func deriveAuthority(programId solana.PublicKey, state solana.PublicKey) (solana.PublicKey, uint8, error) {
-	seeds := make([][]byte, 1)
-	seeds[0] = state.Bytes()[0:32]
-	return solana.FindProgramAddress(seeds, programId)
-}
-
-func deriveSender(programId solana.PublicKey, authority solana.PublicKey, ethAddress string) (solana.PublicKey, uint8, error) {
-	senderSeedPrefix := []byte(SenderSeedPrefix)
-	// Remove 0x and decode hex
-	decodedEthAddress, err := hex.DecodeString(ethAddress[2:])
-	if err != nil {
-		return solana.PublicKey{}, 0, err
-	}
-	// Pad the eth address if necessary w/ leading 0
-	senderSeed := make([]byte, len(senderSeedPrefix)+EthAddressByteLength)
-	copy(senderSeed, senderSeedPrefix)
-	copy(senderSeed[len(senderSeed)-len(decodedEthAddress):], decodedEthAddress)
-	return solana.FindProgramAddress([][]byte{authority.Bytes()[0:32], senderSeed}, programId)
-}
-
-func deriveAttestations(programId solana.PublicKey, authority solana.PublicKey, disbursementId string) (solana.PublicKey, uint8, error) {
-	attestationsSeed := make([]byte, len(AttestationsSeedPrefix)+len(disbursementId))
-	copy(attestationsSeed, []byte(AttestationsSeedPrefix))
-	copy(attestationsSeed[len([]byte(AttestationsSeedPrefix)):], disbursementId)
-	return solana.FindProgramAddress([][]byte{authority.Bytes()[0:32], attestationsSeed}, programId)
-}
-
-func deriveDisbursement(programId solana.PublicKey, authority solana.PublicKey, disbursementId string) (solana.PublicKey, uint8, error) {
-	disbursementSeed := make([]byte, len(DisbursementSeedPrefix)+len(disbursementId))
-	copy(disbursementSeed, []byte(DisbursementSeedPrefix))
-	copy(disbursementSeed[len([]byte(DisbursementSeedPrefix)):], disbursementId)
-	return solana.FindProgramAddress([][]byte{authority.Bytes()[0:32], disbursementSeed}, programId)
-}
diff --git a/api/solana/programs/secp256k1/Secp256k1Instruction.go b/api/spl/programs/secp256k1/Secp256k1Instruction.go
similarity index 100%
rename from api/solana/programs/secp256k1/Secp256k1Instruction.go
rename to api/spl/programs/secp256k1/Secp256k1Instruction.go
diff --git a/api/solana/programs/secp256k1/Secp256k1Instruction_test.go b/api/spl/programs/secp256k1/Secp256k1Instruction_test.go
similarity index 98%
rename from api/solana/programs/secp256k1/Secp256k1Instruction_test.go
rename to api/spl/programs/secp256k1/Secp256k1Instruction_test.go
index b71f812f..01e07b23 100644
--- a/api/solana/programs/secp256k1/Secp256k1Instruction_test.go
+++ b/api/spl/programs/secp256k1/Secp256k1Instruction_test.go
@@ -4,7 +4,7 @@ import (
 	"encoding/hex"
 	"testing"
 
-	"bridgerton.audius.co/api/solana/programs/secp256k1"
+	"bridgerton.audius.co/api/spl/programs/secp256k1"
 	"github.com/ethereum/go-ethereum/crypto"
 	bin "github.com/gagliardetto/binary"
 	"github.com/gagliardetto/solana-go"
diff --git a/api/solana/programs/secp256k1/instruction.go b/api/spl/programs/secp256k1/instruction.go
similarity index 100%
rename from api/solana/programs/secp256k1/instruction.go
rename to api/spl/programs/secp256k1/instruction.go