diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index 3dd77797c8..7e551f41df 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -657,12 +657,12 @@ tencentcloud_apm {
     debug_logging off;
 }
 
-# Promethous exporter config.
+# Prometheus exporter config.
 # See https://prometheus.io/docs/instrumenting/exporters
 exporter {
     # Whether exporter is enabled.
     # Overwrite by env SRS_EXPORTER_ENABLED
-    # default: off
+    # Default: off
     enabled         off;
     # The logging label to category the cluster servers.
     # Overwrite by env SRS_EXPORTER_LABEL
diff --git a/trunk/doc/CHANGELOG.md b/trunk/doc/CHANGELOG.md
index 49a3106fba..295b1e923b 100644
--- a/trunk/doc/CHANGELOG.md
+++ b/trunk/doc/CHANGELOG.md
@@ -7,6 +7,7 @@ The changelog for SRS.
 
 ## SRS 5.0 Changelog
 
+* v5.0, 2022-09-27, For [#2899](https://github.com/ossrs/srs/issues/2899): API: Support exporter for Prometheus. v5.0.67
 * v5.0, 2022-09-27, For [#3167](https://github.com/ossrs/srs/issues/3167): WebRTC: Refine sequence jitter algorithm. v5.0.66
 * v5.0, 2022-09-22, Fix [#3164](https://github.com/ossrs/srs/issues/3164): SRT: Choppy when audio ts gap is too large. v5.0.65
 * v5.0, 2022-09-16, APM: Support distributed tracing by Tencent Cloud APM. v5.0.64
diff --git a/trunk/src/app/srs_app_http_api.cpp b/trunk/src/app/srs_app_http_api.cpp
index fa0a189dc4..4b00e4e179 100644
--- a/trunk/src/app/srs_app_http_api.cpp
+++ b/trunk/src/app/srs_app_http_api.cpp
@@ -1078,7 +1078,7 @@ srs_error_t SrsGoApiMetrics::serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessa
 {
     // whether enabled the HTTP Metrics API.
     if (!enabled_) {
-        return srs_api_response_code(w, r, ERROR_SYSTEM_CONFIG_EXPORTER_DISABLED);
+        return srs_api_response_code(w, r, ERROR_EXPORTER_DISABLED);
     }
 
     /*
@@ -1096,58 +1096,58 @@ srs_error_t SrsGoApiMetrics::serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessa
     std::stringstream ss;
 
     // Build info from Config.
-    ss << "# HELP srs_build_info A metric with a constant '1' value labeled by build_date, version from which srs was built.\n"
-       << "# TYPE srs_build_info gauge\n"
-       << "srs_build_info{"
-       << "build_date=\"" << SRS_BUILD_DATE << "\","
-       << "major=\"" << VERSION_MAJOR << "\","
-       << "version=\"" << RTMP_SIG_SRS_VERSION << "\","
-       << "code=\"" << RTMP_SIG_SRS_CODE<< "\","
-       << "label=\"" << label_<< "\","
-       << "tag=\"" << tag_
-       << "\"} 1\n";
+    ss << "# HELP srs_build_info A metric with a constant '1' value labeled by build_date, version from which SRS was built.\n"
+        << "# TYPE srs_build_info gauge\n"
+        << "srs_build_info{"
+            << "build_date=\"" << SRS_BUILD_DATE << "\","
+            << "major=\"" << VERSION_MAJOR << "\","
+            << "version=\"" << RTMP_SIG_SRS_VERSION << "\","
+            << "code=\"" << RTMP_SIG_SRS_CODE<< "\"";
+    if (!label_.empty()) ss << ",label=\"" << label_ << "\"";
+    if (!tag_.empty()) ss << ",tag=\"" << tag_ << "\"";
+    ss << "} 1\n";
 
     // Dump metrics by statistic.
     int64_t send_bytes, recv_bytes, nstreams, nclients, total_nclients, nerrs;
     stat->dumps_metrics(send_bytes, recv_bytes, nstreams, nclients, total_nclients, nerrs);
 
     // The total of bytes sent.
-    ss << "# HELP srs_send_bytes_total SRS server send bytes.\n"
+    ss << "# HELP srs_send_bytes_total SRS total sent bytes.\n"
        << "# TYPE srs_send_bytes_total counter\n"
        << "srs_send_bytes_total "
        << send_bytes
        << "\n";
 
     // The total of bytes received.
-    ss << "# HELP srs_receive_bytes_total SRS server receive bytes.\n"
+    ss << "# HELP srs_receive_bytes_total SRS total received bytes.\n"
        << "# TYPE srs_receive_bytes_total counter\n"
        << "srs_receive_bytes_total "
        << recv_bytes
        << "\n";
 
     // Current number of online streams.
-    ss << "# HELP srs_streams SRS server concurrent stream counts.\n"
+    ss << "# HELP srs_streams The number of SRS concurrent streams.\n"
        << "# TYPE srs_streams gauge\n"
        << "srs_streams "
        << nstreams
        << "\n";
 
     // Current number of online clients.
-    ss << "# HELP srs_clients SRS server concurrent client counts.\n"
+    ss << "# HELP srs_clients The number of SRS concurrent clients.\n"
        << "# TYPE srs_clients gauge\n"
        << "srs_clients "
        << nclients
        << "\n";
 
     // The total of clients connections.
-    ss << "# HELP srs_clients_total SRS server client total counts.\n"
+    ss << "# HELP srs_clients_total The total counts of SRS clients.\n"
        << "# TYPE srs_clients_total counter\n"
        << "srs_clients_total "
        << total_nclients
        << "\n";
 
     // The total of clients errors.
-    ss << "# HELP srs_clients_errs_total SRS server clients total errors.\n"
+    ss << "# HELP srs_clients_errs_total The total errors of SRS clients.\n"
        << "# TYPE srs_clients_errs_total counter\n"
        << "srs_clients_errs_total "
        << nerrs
diff --git a/trunk/src/core/srs_core_version5.hpp b/trunk/src/core/srs_core_version5.hpp
index a3ccd36a9d..2c26b8e5ef 100644
--- a/trunk/src/core/srs_core_version5.hpp
+++ b/trunk/src/core/srs_core_version5.hpp
@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       5
 #define VERSION_MINOR       0
-#define VERSION_REVISION    66
+#define VERSION_REVISION    67
 
 #endif
diff --git a/trunk/src/kernel/srs_kernel_error.hpp b/trunk/src/kernel/srs_kernel_error.hpp
index fbd18f244a..b68a948680 100644
--- a/trunk/src/kernel/srs_kernel_error.hpp
+++ b/trunk/src/kernel/srs_kernel_error.hpp
@@ -100,7 +100,7 @@
     XX(ERROR_APM_EXCEED_SIZE               , 1087, "ApmExceedSize", "APM logs exceed max size 5MB") \
     XX(ERROR_APM_ENDPOINT                  , 1088, "ApmEndpoint", "APM endpoint is invalid") \
     XX(ERROR_APM_AUTH                      , 1089, "ApmAuth", "APM team or token is invalid") \
-    XX(ERROR_SYSTEM_CONFIG_EXPORTER_DISABLED, 1090, "ConfigMetricsDisable", "Metrics API is disabled") \
+    XX(ERROR_EXPORTER_DISABLED             , 1090, "ExporterDisable", "Prometheus exporter is disabled") \
 
 /**************************************************/
 /* RTMP protocol error. */