diff --git a/itest/cln_lspd_node.go b/itest/cln_lspd_node.go
index 1697e26..30a9f7e 100644
--- a/itest/cln_lspd_node.go
+++ b/itest/cln_lspd_node.go
@@ -42,7 +42,7 @@ type clnLspNodeRuntime struct {
 	cleanups []*lntest.Cleanup
 }
 
-func NewClnLspdNode(h *lntest.TestHarness, m *lntest.Miner, name string, nodeConfig *config.NodeConfig) LspNode {
+func NewClnLspdNode(h *lntest.TestHarness, m *lntest.Miner, mem *mempoolApi, name string, nodeConfig *config.NodeConfig) LspNode {
 	scriptDir := h.GetDirectory("lspd")
 	pluginBinary := *clnPluginExec
 	pluginPort, err := lntest.GetPort()
@@ -65,7 +65,7 @@ func NewClnLspdNode(h *lntest.TestHarness, m *lntest.Miner, name string, nodeCon
 		PluginAddress: pluginAddress,
 		SocketPath:    filepath.Join(lightningNode.SocketDir(), lightningNode.SocketFile()),
 	}
-	lspbase, err := newLspd(h, name, nodeConfig, nil, cln)
+	lspbase, err := newLspd(h, mem, name, nodeConfig, nil, cln)
 	if err != nil {
 		h.T.Fatalf("failed to initialize lspd")
 	}
diff --git a/itest/config_test.go b/itest/config_test.go
index 760b89d..cf69ea8 100644
--- a/itest/config_test.go
+++ b/itest/config_test.go
@@ -19,7 +19,10 @@ func TestConfigParameters(t *testing.T) {
 	m := lntest.NewMiner(h)
 	m.Start()
 
-	lsp := NewClnLspdNode(h, m, "lsp", nil)
+	mem := NewMempoolApi(h)
+	mem.Start()
+
+	lsp := NewClnLspdNode(h, m, mem, "lsp", nil)
 	lsp.Start()
 
 	log.Printf("Waiting %v to allow lsp server to activate.", htlcInterceptorDelay)
diff --git a/itest/lnd_lspd_node.go b/itest/lnd_lspd_node.go
index 9f7e0ce..4864815 100644
--- a/itest/lnd_lspd_node.go
+++ b/itest/lnd_lspd_node.go
@@ -38,7 +38,7 @@ type lndLspNodeRuntime struct {
 	cleanups []*lntest.Cleanup
 }
 
-func NewLndLspdNode(h *lntest.TestHarness, m *lntest.Miner, name string, nodeConfig *config.NodeConfig) LspNode {
+func NewLndLspdNode(h *lntest.TestHarness, m *lntest.Miner, mem *mempoolApi, name string, nodeConfig *config.NodeConfig) LspNode {
 	args := []string{
 		"--protocol.zero-conf",
 		"--protocol.option-scid-alias",
@@ -56,7 +56,7 @@ func NewLndLspdNode(h *lntest.TestHarness, m *lntest.Miner, name string, nodeCon
 		Cert:     string(lightningNode.TlsCert()),
 		Macaroon: hex.EncodeToString(lightningNode.Macaroon()),
 	}
-	lspBase, err := newLspd(h, name, nodeConfig, lnd, nil)
+	lspBase, err := newLspd(h, mem, name, nodeConfig, lnd, nil)
 	if err != nil {
 		h.T.Fatalf("failed to initialize lspd")
 	}
diff --git a/itest/lspd_node.go b/itest/lspd_node.go
index e4f01b3..a4100c1 100644
--- a/itest/lspd_node.go
+++ b/itest/lspd_node.go
@@ -60,7 +60,7 @@ type lspBase struct {
 	postgresBackend *PostgresContainer
 }
 
-func newLspd(h *lntest.TestHarness, name string, nodeConfig *config.NodeConfig, lnd *config.LndConfig, cln *config.ClnConfig, envExt ...string) (*lspBase, error) {
+func newLspd(h *lntest.TestHarness, mem *mempoolApi, name string, nodeConfig *config.NodeConfig, lnd *config.LndConfig, cln *config.ClnConfig, envExt ...string) (*lspBase, error) {
 	scriptDir := h.GetDirectory(fmt.Sprintf("lspd-%s", name))
 	log.Printf("%s: Creating LSPD in dir %s", name, scriptDir)
 
@@ -129,7 +129,7 @@ func newLspd(h *lntest.TestHarness, name string, nodeConfig *config.NodeConfig,
 		nodes,
 		fmt.Sprintf("DATABASE_URL=%s", postgresBackend.ConnectionString()),
 		fmt.Sprintf("LISTEN_ADDRESS=%s", grpcAddress),
-		"MEMPOOL_API_BASE_URL=https://mempool.space/api/v1/",
+		fmt.Sprintf("MEMPOOL_API_BASE_URL=%s", mem.Address()),
 		"MEMPOOL_PRIORITY=economy",
 	}
 
diff --git a/itest/lspd_test.go b/itest/lspd_test.go
index 8c6c73b..e6dd3ff 100644
--- a/itest/lspd_test.go
+++ b/itest/lspd_test.go
@@ -18,12 +18,12 @@ func TestLspd(t *testing.T) {
 	runTests(t, testCases, "CLN-lspd", clnLspFunc, clnClientFunc)
 }
 
-func lndLspFunc(h *lntest.TestHarness, m *lntest.Miner, c *config.NodeConfig) LspNode {
-	return NewLndLspdNode(h, m, "lsp", c)
+func lndLspFunc(h *lntest.TestHarness, m *lntest.Miner, mem *mempoolApi, c *config.NodeConfig) LspNode {
+	return NewLndLspdNode(h, m, mem, "lsp", c)
 }
 
-func clnLspFunc(h *lntest.TestHarness, m *lntest.Miner, c *config.NodeConfig) LspNode {
-	return NewClnLspdNode(h, m, "lsp", c)
+func clnLspFunc(h *lntest.TestHarness, m *lntest.Miner, mem *mempoolApi, c *config.NodeConfig) LspNode {
+	return NewClnLspdNode(h, m, mem, "lsp", c)
 }
 
 func lndClientFunc(h *lntest.TestHarness, m *lntest.Miner) BreezClient {
@@ -72,10 +72,15 @@ func runTest(
 	log.Printf("Creating miner")
 	miner := lntest.NewMiner(h)
 	miner.Start()
+
+	log.Printf("Creating mempool api")
+	mem := NewMempoolApi(h)
+	mem.Start()
+
 	log.Printf("Creating lsp")
 	var lsp LspNode
 	if !testCase.skipCreateLsp {
-		lsp = lspFunc(h, miner, nil)
+		lsp = lspFunc(h, miner, mem, nil)
 		lsp.Start()
 	}
 	c := clientFunc(h, miner)
@@ -85,6 +90,7 @@ func runTest(
 		t:          t,
 		h:          h,
 		m:          miner,
+		mem:        mem,
 		c:          c,
 		lsp:        lsp,
 		lspFunc:    lspFunc,
diff --git a/itest/mempool_api.go b/itest/mempool_api.go
new file mode 100644
index 0000000..44a5676
--- /dev/null
+++ b/itest/mempool_api.go
@@ -0,0 +1,85 @@
+package itest
+
+import (
+	"encoding/json"
+	"fmt"
+	"net"
+	"net/http"
+
+	"github.com/breez/lntest"
+)
+
+type RecommendedFeesResponse struct {
+	FastestFee  float64 `json:"fastestFee"`
+	HalfHourFee float64 `json:"halfHourFee"`
+	HourFee     float64 `json:"hourFee"`
+	EconomyFee  float64 `json:"economyFee"`
+	MinimumFee  float64 `json:"minimumFee"`
+}
+
+type mempoolApi struct {
+	addr string
+	h    *lntest.TestHarness
+	fees *RecommendedFeesResponse
+	lis  net.Listener
+}
+
+func NewMempoolApi(h *lntest.TestHarness) *mempoolApi {
+	port, err := lntest.GetPort()
+	if err != nil {
+		h.T.Fatalf("Failed to get port for mempool api: %v", err)
+	}
+
+	return &mempoolApi{
+		addr: fmt.Sprintf("127.0.0.1:%d", port),
+		h:    h,
+		fees: &RecommendedFeesResponse{
+			MinimumFee:  1,
+			EconomyFee:  1,
+			HourFee:     1,
+			HalfHourFee: 1,
+			FastestFee:  1,
+		},
+	}
+}
+
+func (m *mempoolApi) Address() string {
+	return fmt.Sprintf("http://%s/api/v1/", m.addr)
+}
+
+func (m *mempoolApi) SetFees(fees *RecommendedFeesResponse) {
+	m.fees = fees
+}
+
+func (m *mempoolApi) Start() {
+	mux := http.NewServeMux()
+	mux.HandleFunc("/api/v1/fees/recommended", func(w http.ResponseWriter, r *http.Request) {
+		j, err := json.Marshal(m.fees)
+		if err != nil {
+			m.h.T.Fatalf("Failed to marshal mempool fees: %v", err)
+		}
+		_, err = w.Write(j)
+		if err != nil {
+			m.h.T.Fatalf("Failed to write mempool response: %v", err)
+		}
+	})
+	lis, err := net.Listen("tcp", m.addr)
+	if err != nil {
+		m.h.T.Fatalf("failed to start mempool api: %v", err)
+	}
+
+	m.lis = lis
+	m.h.AddStoppable(m)
+
+	go http.Serve(lis, mux)
+}
+
+func (m *mempoolApi) Stop() error {
+	lis := m.lis
+	if lis == nil {
+		return nil
+	}
+
+	m.lis = nil
+	return lis.Close()
+}
diff --git a/itest/test_params.go b/itest/test_params.go
index a3d420d..ab9b416 100644
--- a/itest/test_params.go
+++ b/itest/test_params.go
@@ -7,13 +7,14 @@ import (
 	"github.com/breez/lspd/config"
 )
 
-type LspFunc func(h *lntest.TestHarness, m *lntest.Miner, c *config.NodeConfig) LspNode
+type LspFunc func(h *lntest.TestHarness, m *lntest.Miner, mem *mempoolApi, c *config.NodeConfig) LspNode
 type ClientFunc func(h *lntest.TestHarness, m *lntest.Miner) BreezClient
 
 type testParams struct {
 	t          *testing.T
 	h          *lntest.TestHarness
 	m          *lntest.Miner
+	mem        *mempoolApi
 	c          BreezClient
 	lsp        LspNode
 	lspFunc    LspFunc
@@ -28,6 +29,10 @@ func (h *testParams) Miner() *lntest.Miner {
 	return h.m
 }
 
+func (h *testParams) Mempool() *mempoolApi {
+	return h.mem
+}
+
 func (h *testParams) Lsp() LspNode {
 	return h.lsp
 }
diff --git a/itest/zero_conf_utxo_test.go b/itest/zero_conf_utxo_test.go
index ea991fc..44ab3d1 100644
--- a/itest/zero_conf_utxo_test.go
+++ b/itest/zero_conf_utxo_test.go
@@ -16,7 +16,7 @@ func testOpenZeroConfUtxo(p *testParams) {
 	alice.Fund(10000000)
 
 	minConfs := uint32(0)
-	lsp := p.lspFunc(p.h, p.m, &config.NodeConfig{MinConfs: &minConfs})
+	lsp := p.lspFunc(p.h, p.m, p.mem, &config.NodeConfig{MinConfs: &minConfs})
 	lsp.Start()
 
 	log.Print("Opening channel between Alice and the lsp")