diff --git a/lsps2/store.go b/lsps2/store.go
new file mode 100644
index 0000000..7d6c297
--- /dev/null
+++ b/lsps2/store.go
@@ -0,0 +1,24 @@
+package lsps2
+
+import (
+	"context"
+	"errors"
+
+	"github.com/breez/lspd/basetypes"
+	"github.com/breez/lspd/shared"
+)
+
+type RegisterBuy struct {
+	LspId            string
+	PeerId           string
+	Scid             basetypes.ShortChannelID
+	OpeningFeeParams shared.OpeningFeeParams
+	PaymentSizeMsat  *uint64
+	Mode             OpeningMode
+}
+
+var ErrScidExists = errors.New("scid exists")
+
+type Lsps2Store interface {
+	RegisterBuy(ctx context.Context, req *RegisterBuy) error
+}
diff --git a/postgresql/lsps2_store.go b/postgresql/lsps2_store.go
new file mode 100644
index 0000000..a0a8997
--- /dev/null
+++ b/postgresql/lsps2_store.go
@@ -0,0 +1,60 @@
+package postgresql
+
+import (
+	"context"
+	"strings"
+
+	"github.com/breez/lspd/lsps2"
+	"github.com/jackc/pgx/v4/pgxpool"
+)
+
+type Lsps2Store struct {
+	pool *pgxpool.Pool
+}
+
+func NewLsps2Store(pool *pgxpool.Pool) *Lsps2Store {
+	return &Lsps2Store{pool: pool}
+}
+
+func (s *Lsps2Store) RegisterBuy(
+	ctx context.Context,
+	req *lsps2.RegisterBuy,
+) error {
+	_, err := s.pool.Exec(
+		ctx,
+		`INSERT INTO lsps2.buy_registrations (
+			lsp_id
+		 ,  peer_id
+		 ,  scid
+		 ,  mode
+		 ,  payment_size_msat
+		 ,  params_min_fee_msat
+		 ,  params_proportional
+		 ,  params_valid_until
+		 ,  params_min_lifetime
+		 ,  params_max_client_to_self_delay
+		 ,  params_promise
+		 )
+		 VALUES ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?`,
+		req.LspId,
+		req.PeerId,
+		int64(uint64(req.Scid)),
+		int(req.Mode),
+		req.PaymentSizeMsat,
+		int64(req.OpeningFeeParams.MinFeeMsat),
+		req.OpeningFeeParams.Proportional,
+		req.OpeningFeeParams.ValidUntil,
+		req.OpeningFeeParams.MinLifetime,
+		req.OpeningFeeParams.MaxClientToSelfDelay,
+		req.OpeningFeeParams.Promise,
+	)
+	if err != nil {
+		if strings.Contains(err.Error(), "idx_lsps2_buy_registrations_scid") {
+			return lsps2.ErrScidExists
+		}
+
+		return err
+	}
+
+	return nil
+}
diff --git a/postgresql/migrations/000014_lsps2_buy.down.sql b/postgresql/migrations/000014_lsps2_buy.down.sql
new file mode 100644
index 0000000..abc2b95
--- /dev/null
+++ b/postgresql/migrations/000014_lsps2_buy.down.sql
@@ -0,0 +1,4 @@
+DROP INDEX idx_lsps2_buy_registrations_valid_until;
+DROP INDEX idx_lsps2_buy_registrations_scid;
+DROP TABLE lsps2.buy_registrations;
+DROP SCHEMA lsps2;
\ No newline at end of file
diff --git a/postgresql/migrations/000014_lsps2_buy.up.sql b/postgresql/migrations/000014_lsps2_buy.up.sql
new file mode 100644
index 0000000..40b9d30
--- /dev/null
+++ b/postgresql/migrations/000014_lsps2_buy.up.sql
@@ -0,0 +1,17 @@
+CREATE SCHEMA lsps2;
+CREATE TABLE lsps2.buy_registrations (
+    id bigserial PRIMARY KEY, 
+    lsp_id bytea NOT NULL,
+    peer_id bytea NOT NULL,
+    scid bigint NOT NULL,
+	mode smallint NOT NULL,
+	payment_size_msat bigint NULL,
+    params_min_fee_msat bigint NOT NULL,
+	params_proportional bigint NOT NULL,
+	params_valid_until varchar NOT NULL,
+	params_min_lifetime bigint NOT NULL,
+	params_max_client_to_self_delay bigint NOT NULL,
+	params_promise varchar NOT NULL
+);
+CREATE UNIQUE INDEX idx_lsps2_buy_registrations_scid ON lsps2.buy_registrations (scid);
+CREATE INDEX idx_lsps2_buy_registrations_valid_until ON lsps2.buy_registrations (params_valid_until);