diff --git a/apps/amm/src/SequencerClient.cpp b/apps/amm/src/SequencerClient.cpp
index d199895..8de26b7 100644
--- a/apps/amm/src/SequencerClient.cpp
+++ b/apps/amm/src/SequencerClient.cpp
@@ -56,6 +56,15 @@ QByteArray rpcBody(const QString& method, const QJsonArray& params)
     }).toJson(QJsonDocument::Compact);
 }
 
+QUrl canonicalEndpoint(QUrl endpoint)
+{
+    // Both forms issue requests to the HTTP root, so they must share cache
+    // and credential identity.
+    if (endpoint.path() == QLatin1String("/"))
+        endpoint.setPath({});
+    return endpoint;
+}
+
 WalletAccountRead accountRead(const QJsonObject& value, const QString& fallbackId)
 {
     WalletAccountRead read;
@@ -90,8 +99,8 @@ bool SequencerClient::configure(const QString& configPath,
     if (configValid) {
         const QJsonDocument document = QJsonDocument::fromJson(file.readAll());
         const QJsonObject config = document.object();
-        configuredEndpoint = QUrl(
-            config.value(QStringLiteral("sequencer_addr")).toString());
+        configuredEndpoint = canonicalEndpoint(QUrl(
+            config.value(QStringLiteral("sequencer_addr")).toString()));
         const QString scheme = configuredEndpoint.scheme().toLower();
         configValid = document.isObject()
             && configuredEndpoint.isValid()
@@ -108,8 +117,8 @@ bool SequencerClient::configure(const QString& configPath,
         }
     }
 
-    QUrl endpoint = effectiveEndpoint.isEmpty()
-        ? configuredEndpoint : QUrl(effectiveEndpoint);
+    QUrl endpoint = canonicalEndpoint(effectiveEndpoint.isEmpty()
+        ? configuredEndpoint : QUrl(effectiveEndpoint));
     const QString scheme = endpoint.scheme().toLower();
     const bool valid = endpoint.isValid()
         && !endpoint.host().isEmpty()
diff --git a/apps/amm/tests/cpp/NewPositionRuntimeTest.cpp b/apps/amm/tests/cpp/NewPositionRuntimeTest.cpp
index 9cae532..24a1537 100644
--- a/apps/amm/tests/cpp/NewPositionRuntimeTest.cpp
+++ b/apps/amm/tests/cpp/NewPositionRuntimeTest.cpp
@@ -748,6 +748,79 @@ int main(int argc, char** argv)
                 "matching endpoint should retain configured credentials"))
         return 1;
 
+    LocalRpcServer rootEndpointServer;
+    if (!expect(rootEndpointServer.listen(),
+                "root endpoint sequencer should listen"))
+        return 1;
+    QTemporaryFile rootEndpointConfig;
+    if (!expect(rootEndpointConfig.open(),
+                "root endpoint config should open"))
+        return 1;
+    rootEndpointConfig.write(QJsonDocument(QJsonObject {
+        { QStringLiteral("sequencer_addr"), rootEndpointServer.endpoint() + QLatin1Char('/') },
+        { QStringLiteral("basic_auth"), QJsonObject {
+            { QStringLiteral("username"), QStringLiteral("user") },
+            { QStringLiteral("password"), QStringLiteral("pass") },
+        } },
+    }).toJson(QJsonDocument::Compact));
+    rootEndpointConfig.flush();
+    FakeAmmClient rootEndpointClient;
+    SequencerClient rootEndpointSequencer(&rootEndpointClient);
+    if (!expect(rootEndpointSequencer.configure(rootEndpointConfig.fileName()),
+                "root endpoint config should configure"))
+        return 1;
+    const QString rootEndpointAccount(64, QLatin1Char('4'));
+    QVector<WalletAccountRead> rootEndpointReads;
+    if (!expect(waitForAccounts(rootEndpointSequencer, { rootEndpointAccount }, false,
+                                &rootEndpointReads),
+                "root endpoint initial read should complete"))
+        return 1;
+    if (!expect(rootEndpointServer.requestCount() == 1
+                    && rootEndpointServer.lastRequest().toLower().contains(
+                        "authorization: basic dxnlcjpwyxnz"),
+                "configured root endpoint should use configured credentials"))
+        return 1;
+
+    if (!expect(rootEndpointSequencer.configure(
+                    rootEndpointConfig.fileName(), rootEndpointServer.endpoint()),
+                "slash-equivalent endpoint should configure"))
+        return 1;
+    rootEndpointReads.clear();
+    if (!expect(waitForAccounts(rootEndpointSequencer, { rootEndpointAccount }, false,
+                                &rootEndpointReads),
+                "slash-equivalent cached read should complete"))
+        return 1;
+    if (!expect(rootEndpointServer.requestCount() == 1,
+                "slash-equivalent endpoint should preserve account cache"))
+        return 1;
+
+    const QString rootEndpointFreshAccount(64, QLatin1Char('5'));
+    if (!expect(waitForAccounts(rootEndpointSequencer, { rootEndpointFreshAccount }, true,
+                                &rootEndpointReads),
+                "slash-equivalent forced read should complete"))
+        return 1;
+    if (!expect(rootEndpointServer.requestCount() == 2
+                    && rootEndpointServer.lastRequest().toLower().contains(
+                        "authorization: basic dxnlcjpwyxnz"),
+                "slash-equivalent endpoint should retain configured credentials"))
+        return 1;
+
+    if (!expect(rootEndpointSequencer.configure(
+                    rootEndpointConfig.fileName(),
+                    rootEndpointServer.endpoint() + QStringLiteral("/rpc")),
+                "path-changing endpoint should configure"))
+        return 1;
+    rootEndpointReads.clear();
+    if (!expect(waitForAccounts(rootEndpointSequencer, { rootEndpointAccount }, false,
+                                &rootEndpointReads),
+                "path-changing endpoint read should complete"))
+        return 1;
+    if (!expect(rootEndpointServer.requestCount() == 3
+                    && !rootEndpointServer.lastRequest().toLower().contains(
+                        "authorization:"),
+                "path-changing endpoint should clear cache and credentials"))
+        return 1;
+
     LocalRpcServer staleContextServer;
     if (!expect(staleContextServer.listen(),
                 "stale-context sequencer should listen"))