diff --git a/src/core/transport/static_metadata.c b/src/core/transport/static_metadata.c
index c4dc0c7b887ae847e8e06df5197d27b0fa221871..f359ce5c209594a2a4708133270cde84e0115b26 100644
--- a/src/core/transport/static_metadata.c
+++ b/src/core/transport/static_metadata.c
@@ -49,27 +49,91 @@ grpc_mdelem grpc_static_mdelem_table[GRPC_STATIC_MDELEM_COUNT];
 
 const gpr_uint8 grpc_static_metadata_elem_indices[GRPC_STATIC_MDELEM_COUNT *
                                                   2] = {
-    9,  28, 8,  28, 10, 28, 10, 40, 11, 28, 12, 28, 13, 28, 14, 28, 15, 28, 16,
-    28, 17, 28, 18, 28, 19, 28, 20, 28, 21, 28, 22, 28, 23, 28, 24, 28, 25, 28,
-    26, 28, 27, 28, 29, 28, 30, 28, 31, 28, 32, 28, 38, 0,  41, 28, 44, 28, 45,
-    28, 46, 28, 47, 28, 48, 28, 49, 28, 50, 28, 51, 28, 52, 28, 53, 33, 53, 55,
-    54, 65, 54, 66, 56, 28, 57, 28, 58, 28, 59, 28, 60, 28, 61, 28, 62, 34, 62,
-    42, 62, 43, 63, 28, 64, 28, 67, 1,  67, 2,  67, 3,  67, 4,  67, 5,  67, 6,
-    67, 7,  68, 28, 69, 70, 71, 28, 72, 28, 73, 28, 74, 28, 75, 28};
+    9,  29, 8,  29, 10, 29, 10, 42, 11, 29, 12, 29, 13, 29, 14, 29, 15, 29, 16,
+    29, 17, 29, 18, 29, 19, 29, 20, 29, 21, 29, 22, 29, 23, 29, 24, 29, 25, 29,
+    26, 29, 27, 29, 30, 29, 31, 29, 32, 29, 33, 29, 39, 0,  43, 29, 47, 29, 48,
+    29, 49, 29, 50, 29, 51, 29, 52, 29, 53, 29, 54, 29, 55, 29, 56, 34, 56, 58,
+    57, 68, 57, 69, 59, 29, 60, 29, 61, 29, 62, 29, 63, 29, 64, 29, 65, 35, 65,
+    44, 65, 45, 66, 29, 67, 29, 70, 1,  70, 2,  70, 3,  70, 4,  70, 5,  70, 6,
+    70, 7,  71, 29, 72, 73, 74, 29, 75, 29, 76, 29, 77, 29, 78, 29};
 
 const char *const grpc_static_metadata_strings[GRPC_STATIC_MDSTR_COUNT] = {
-    "0", "200", "204", "206", "304", "400", "404", "500", "accept",
-    "accept-charset", "accept-encoding", "accept-language", "accept-ranges",
-    "access-control-allow-origin", "age", "allow", ":authority",
-    "authorization", "cache-control", "content-disposition", "content-encoding",
-    "content-language", "content-length", "content-location", "content-range",
-    "content-type", "cookie", "date", "", "etag", "expect", "expires", "from",
-    "GET", "grpc", "grpc-accept-encoding", "grpc-encoding", "grpc-message",
-    "grpc-status", "grpc-timeout", "gzip, deflate", "host", "http", "https",
-    "if-match", "if-modified-since", "if-none-match", "if-range",
-    "if-unmodified-since", "last-modified", "link", "location", "max-forwards",
-    ":method", ":path", "POST", "proxy-authenticate", "proxy-authorization",
-    "range", "referer", "refresh", "retry-after", ":scheme", "server",
-    "set-cookie", "/", "/index.html", ":status", "strict-transport-security",
-    "te", "trailers", "transfer-encoding", "user-agent", "vary", "via",
+    "0",
+    "200",
+    "204",
+    "206",
+    "304",
+    "400",
+    "404",
+    "500",
+    "accept",
+    "accept-charset",
+    "accept-encoding",
+    "accept-language",
+    "accept-ranges",
+    "access-control-allow-origin",
+    "age",
+    "allow",
+    ":authority",
+    "authorization",
+    "cache-control",
+    "content-disposition",
+    "content-encoding",
+    "content-language",
+    "content-length",
+    "content-location",
+    "content-range",
+    "content-type",
+    "cookie",
+    "date",
+    "deflate",
+    "",
+    "etag",
+    "expect",
+    "expires",
+    "from",
+    "GET",
+    "grpc",
+    "grpc-accept-encoding",
+    "grpc-encoding",
+    "grpc-message",
+    "grpc-status",
+    "grpc-timeout",
+    "gzip",
+    "gzip, deflate",
+    "host",
+    "http",
+    "https",
+    "identity",
+    "if-match",
+    "if-modified-since",
+    "if-none-match",
+    "if-range",
+    "if-unmodified-since",
+    "last-modified",
+    "link",
+    "location",
+    "max-forwards",
+    ":method",
+    ":path",
+    "POST",
+    "proxy-authenticate",
+    "proxy-authorization",
+    "range",
+    "referer",
+    "refresh",
+    "retry-after",
+    ":scheme",
+    "server",
+    "set-cookie",
+    "/",
+    "/index.html",
+    ":status",
+    "strict-transport-security",
+    "te",
+    "trailers",
+    "transfer-encoding",
+    "user-agent",
+    "vary",
+    "via",
     "www-authenticate"};
diff --git a/src/core/transport/static_metadata.h b/src/core/transport/static_metadata.h
index a4e53943a8dc381ef355142c3c32249fa66ecddf..4a7bee1da8b8e1116876b16aea3cf740b3db61c3 100644
--- a/src/core/transport/static_metadata.h
+++ b/src/core/transport/static_metadata.h
@@ -46,7 +46,7 @@
 
 #include "src/core/transport/metadata.h"
 
-#define GRPC_STATIC_MDSTR_COUNT 76
+#define GRPC_STATIC_MDSTR_COUNT 79
 extern grpc_mdstr grpc_static_mdstr_table[GRPC_STATIC_MDSTR_COUNT];
 /* "0" */
 #define GRPC_MDSTR_0 (&grpc_static_mdstr_table[0])
@@ -104,102 +104,108 @@ extern grpc_mdstr grpc_static_mdstr_table[GRPC_STATIC_MDSTR_COUNT];
 #define GRPC_MDSTR_COOKIE (&grpc_static_mdstr_table[26])
 /* "date" */
 #define GRPC_MDSTR_DATE (&grpc_static_mdstr_table[27])
+/* "deflate" */
+#define GRPC_MDSTR_DEFLATE (&grpc_static_mdstr_table[28])
 /* "" */
-#define GRPC_MDSTR_EMPTY (&grpc_static_mdstr_table[28])
+#define GRPC_MDSTR_EMPTY (&grpc_static_mdstr_table[29])
 /* "etag" */
-#define GRPC_MDSTR_ETAG (&grpc_static_mdstr_table[29])
+#define GRPC_MDSTR_ETAG (&grpc_static_mdstr_table[30])
 /* "expect" */
-#define GRPC_MDSTR_EXPECT (&grpc_static_mdstr_table[30])
+#define GRPC_MDSTR_EXPECT (&grpc_static_mdstr_table[31])
 /* "expires" */
-#define GRPC_MDSTR_EXPIRES (&grpc_static_mdstr_table[31])
+#define GRPC_MDSTR_EXPIRES (&grpc_static_mdstr_table[32])
 /* "from" */
-#define GRPC_MDSTR_FROM (&grpc_static_mdstr_table[32])
+#define GRPC_MDSTR_FROM (&grpc_static_mdstr_table[33])
 /* "GET" */
-#define GRPC_MDSTR_GET (&grpc_static_mdstr_table[33])
+#define GRPC_MDSTR_GET (&grpc_static_mdstr_table[34])
 /* "grpc" */
-#define GRPC_MDSTR_GRPC (&grpc_static_mdstr_table[34])
+#define GRPC_MDSTR_GRPC (&grpc_static_mdstr_table[35])
 /* "grpc-accept-encoding" */
-#define GRPC_MDSTR_GRPC_ACCEPT_ENCODING (&grpc_static_mdstr_table[35])
+#define GRPC_MDSTR_GRPC_ACCEPT_ENCODING (&grpc_static_mdstr_table[36])
 /* "grpc-encoding" */
-#define GRPC_MDSTR_GRPC_ENCODING (&grpc_static_mdstr_table[36])
+#define GRPC_MDSTR_GRPC_ENCODING (&grpc_static_mdstr_table[37])
 /* "grpc-message" */
-#define GRPC_MDSTR_GRPC_MESSAGE (&grpc_static_mdstr_table[37])
+#define GRPC_MDSTR_GRPC_MESSAGE (&grpc_static_mdstr_table[38])
 /* "grpc-status" */
-#define GRPC_MDSTR_GRPC_STATUS (&grpc_static_mdstr_table[38])
+#define GRPC_MDSTR_GRPC_STATUS (&grpc_static_mdstr_table[39])
 /* "grpc-timeout" */
-#define GRPC_MDSTR_GRPC_TIMEOUT (&grpc_static_mdstr_table[39])
+#define GRPC_MDSTR_GRPC_TIMEOUT (&grpc_static_mdstr_table[40])
+/* "gzip" */
+#define GRPC_MDSTR_GZIP (&grpc_static_mdstr_table[41])
 /* "gzip, deflate" */
-#define GRPC_MDSTR_GZIP_COMMA_DEFLATE (&grpc_static_mdstr_table[40])
+#define GRPC_MDSTR_GZIP_COMMA_DEFLATE (&grpc_static_mdstr_table[42])
 /* "host" */
-#define GRPC_MDSTR_HOST (&grpc_static_mdstr_table[41])
+#define GRPC_MDSTR_HOST (&grpc_static_mdstr_table[43])
 /* "http" */
-#define GRPC_MDSTR_HTTP (&grpc_static_mdstr_table[42])
+#define GRPC_MDSTR_HTTP (&grpc_static_mdstr_table[44])
 /* "https" */
-#define GRPC_MDSTR_HTTPS (&grpc_static_mdstr_table[43])
+#define GRPC_MDSTR_HTTPS (&grpc_static_mdstr_table[45])
+/* "identity" */
+#define GRPC_MDSTR_IDENTITY (&grpc_static_mdstr_table[46])
 /* "if-match" */
-#define GRPC_MDSTR_IF_MATCH (&grpc_static_mdstr_table[44])
+#define GRPC_MDSTR_IF_MATCH (&grpc_static_mdstr_table[47])
 /* "if-modified-since" */
-#define GRPC_MDSTR_IF_MODIFIED_SINCE (&grpc_static_mdstr_table[45])
+#define GRPC_MDSTR_IF_MODIFIED_SINCE (&grpc_static_mdstr_table[48])
 /* "if-none-match" */
-#define GRPC_MDSTR_IF_NONE_MATCH (&grpc_static_mdstr_table[46])
+#define GRPC_MDSTR_IF_NONE_MATCH (&grpc_static_mdstr_table[49])
 /* "if-range" */
-#define GRPC_MDSTR_IF_RANGE (&grpc_static_mdstr_table[47])
+#define GRPC_MDSTR_IF_RANGE (&grpc_static_mdstr_table[50])
 /* "if-unmodified-since" */
-#define GRPC_MDSTR_IF_UNMODIFIED_SINCE (&grpc_static_mdstr_table[48])
+#define GRPC_MDSTR_IF_UNMODIFIED_SINCE (&grpc_static_mdstr_table[51])
 /* "last-modified" */
-#define GRPC_MDSTR_LAST_MODIFIED (&grpc_static_mdstr_table[49])
+#define GRPC_MDSTR_LAST_MODIFIED (&grpc_static_mdstr_table[52])
 /* "link" */
-#define GRPC_MDSTR_LINK (&grpc_static_mdstr_table[50])
+#define GRPC_MDSTR_LINK (&grpc_static_mdstr_table[53])
 /* "location" */
-#define GRPC_MDSTR_LOCATION (&grpc_static_mdstr_table[51])
+#define GRPC_MDSTR_LOCATION (&grpc_static_mdstr_table[54])
 /* "max-forwards" */
-#define GRPC_MDSTR_MAX_FORWARDS (&grpc_static_mdstr_table[52])
+#define GRPC_MDSTR_MAX_FORWARDS (&grpc_static_mdstr_table[55])
 /* ":method" */
-#define GRPC_MDSTR_METHOD (&grpc_static_mdstr_table[53])
+#define GRPC_MDSTR_METHOD (&grpc_static_mdstr_table[56])
 /* ":path" */
-#define GRPC_MDSTR_PATH (&grpc_static_mdstr_table[54])
+#define GRPC_MDSTR_PATH (&grpc_static_mdstr_table[57])
 /* "POST" */
-#define GRPC_MDSTR_POST (&grpc_static_mdstr_table[55])
+#define GRPC_MDSTR_POST (&grpc_static_mdstr_table[58])
 /* "proxy-authenticate" */
-#define GRPC_MDSTR_PROXY_AUTHENTICATE (&grpc_static_mdstr_table[56])
+#define GRPC_MDSTR_PROXY_AUTHENTICATE (&grpc_static_mdstr_table[59])
 /* "proxy-authorization" */
-#define GRPC_MDSTR_PROXY_AUTHORIZATION (&grpc_static_mdstr_table[57])
+#define GRPC_MDSTR_PROXY_AUTHORIZATION (&grpc_static_mdstr_table[60])
 /* "range" */
-#define GRPC_MDSTR_RANGE (&grpc_static_mdstr_table[58])
+#define GRPC_MDSTR_RANGE (&grpc_static_mdstr_table[61])
 /* "referer" */
-#define GRPC_MDSTR_REFERER (&grpc_static_mdstr_table[59])
+#define GRPC_MDSTR_REFERER (&grpc_static_mdstr_table[62])
 /* "refresh" */
-#define GRPC_MDSTR_REFRESH (&grpc_static_mdstr_table[60])
+#define GRPC_MDSTR_REFRESH (&grpc_static_mdstr_table[63])
 /* "retry-after" */
-#define GRPC_MDSTR_RETRY_AFTER (&grpc_static_mdstr_table[61])
+#define GRPC_MDSTR_RETRY_AFTER (&grpc_static_mdstr_table[64])
 /* ":scheme" */
-#define GRPC_MDSTR_SCHEME (&grpc_static_mdstr_table[62])
+#define GRPC_MDSTR_SCHEME (&grpc_static_mdstr_table[65])
 /* "server" */
-#define GRPC_MDSTR_SERVER (&grpc_static_mdstr_table[63])
+#define GRPC_MDSTR_SERVER (&grpc_static_mdstr_table[66])
 /* "set-cookie" */
-#define GRPC_MDSTR_SET_COOKIE (&grpc_static_mdstr_table[64])
+#define GRPC_MDSTR_SET_COOKIE (&grpc_static_mdstr_table[67])
 /* "/" */
-#define GRPC_MDSTR_SLASH (&grpc_static_mdstr_table[65])
+#define GRPC_MDSTR_SLASH (&grpc_static_mdstr_table[68])
 /* "/index.html" */
-#define GRPC_MDSTR_SLASH_INDEX_DOT_HTML (&grpc_static_mdstr_table[66])
+#define GRPC_MDSTR_SLASH_INDEX_DOT_HTML (&grpc_static_mdstr_table[69])
 /* ":status" */
-#define GRPC_MDSTR_STATUS (&grpc_static_mdstr_table[67])
+#define GRPC_MDSTR_STATUS (&grpc_static_mdstr_table[70])
 /* "strict-transport-security" */
-#define GRPC_MDSTR_STRICT_TRANSPORT_SECURITY (&grpc_static_mdstr_table[68])
+#define GRPC_MDSTR_STRICT_TRANSPORT_SECURITY (&grpc_static_mdstr_table[71])
 /* "te" */
-#define GRPC_MDSTR_TE (&grpc_static_mdstr_table[69])
+#define GRPC_MDSTR_TE (&grpc_static_mdstr_table[72])
 /* "trailers" */
-#define GRPC_MDSTR_TRAILERS (&grpc_static_mdstr_table[70])
+#define GRPC_MDSTR_TRAILERS (&grpc_static_mdstr_table[73])
 /* "transfer-encoding" */
-#define GRPC_MDSTR_TRANSFER_ENCODING (&grpc_static_mdstr_table[71])
+#define GRPC_MDSTR_TRANSFER_ENCODING (&grpc_static_mdstr_table[74])
 /* "user-agent" */
-#define GRPC_MDSTR_USER_AGENT (&grpc_static_mdstr_table[72])
+#define GRPC_MDSTR_USER_AGENT (&grpc_static_mdstr_table[75])
 /* "vary" */
-#define GRPC_MDSTR_VARY (&grpc_static_mdstr_table[73])
+#define GRPC_MDSTR_VARY (&grpc_static_mdstr_table[76])
 /* "via" */
-#define GRPC_MDSTR_VIA (&grpc_static_mdstr_table[74])
+#define GRPC_MDSTR_VIA (&grpc_static_mdstr_table[77])
 /* "www-authenticate" */
-#define GRPC_MDSTR_WWW_AUTHENTICATE (&grpc_static_mdstr_table[75])
+#define GRPC_MDSTR_WWW_AUTHENTICATE (&grpc_static_mdstr_table[78])
 
 #define GRPC_STATIC_MDELEM_COUNT 65
 extern grpc_mdelem grpc_static_mdelem_table[GRPC_STATIC_MDELEM_COUNT];
diff --git a/tools/codegen/core/gen_static_metadata.py b/tools/codegen/core/gen_static_metadata.py
index 35543a4f578b60dc0400514ab088c29e87b178f1..0e84a73ea598d2c25a1613ccf98c9d1dd6523c82 100755
--- a/tools/codegen/core/gen_static_metadata.py
+++ b/tools/codegen/core/gen_static_metadata.py
@@ -49,6 +49,9 @@ CONFIG = [
     'host',
     'grpc-message',
     'grpc-status',
+    'gzip',
+    'deflate',
+    'identity',
     '',
     ('grpc-status', '0'),
     ('te', 'trailers'),