diff --git a/Cargo.lock b/Cargo.lock
index d30fc72cc..bec79acd5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -134,6 +134,15 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "async-mutex"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "479db852db25d9dbf6204e6cb6253698f175c15726470f78af0d918e99d6156e"
+dependencies = [
+ "event-listener",
+]
+
 [[package]]
 name = "async-native-tls"
 version = "0.4.0"
@@ -216,6 +225,54 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
+[[package]]
+name = "axum"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2cc6e8e8c993cb61a005fab8c1e5093a29199b7253b05a6883999312935c1ff"
+dependencies = [
+ "async-trait",
+ "axum-core",
+ "base64 0.13.0",
+ "bitflags",
+ "bytes",
+ "futures-util",
+ "http",
+ "http-body",
+ "hyper",
+ "itoa 1.0.2",
+ "matchit",
+ "memchr",
+ "mime",
+ "percent-encoding",
+ "pin-project-lite",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "sha-1 0.10.0",
+ "sync_wrapper",
+ "tokio",
+ "tokio-tungstenite",
+ "tower",
+ "tower-http",
+ "tower-layer",
+ "tower-service",
+]
+
+[[package]]
+name = "axum-core"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf4d047478b986f14a13edad31a009e2e05cb241f9805d0d75e4cba4e129ad4d"
+dependencies = [
+ "async-trait",
+ "bytes",
+ "futures-util",
+ "http",
+ "http-body",
+ "mime",
+]
+
 [[package]]
 name = "backtrace"
 version = "0.3.65"
@@ -512,6 +569,12 @@ version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e4c78c047431fee22c1a7bb92e00ad095a02a983affe4d8a72e2a2c62c1b94f3"
 
+[[package]]
+name = "convert_case"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb4a24b1aaf0fd0ce8b45161144d6f42cd91677fd5940fd431183eb023b3a2b8"
+
 [[package]]
 name = "core-foundation"
 version = "0.9.3"
@@ -706,8 +769,28 @@ version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0d706e75d87e35569db781a9b5e2416cff1236a47ed380831f959382ccd5f858"
 dependencies = [
- "darling_core",
- "darling_macro",
+ "darling_core 0.10.2",
+ "darling_macro 0.10.2",
+]
+
+[[package]]
+name = "darling"
+version = "0.13.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a01d95850c592940db9b8194bc39f4bc0e89dee5c4265e4b1807c34a9aba453c"
+dependencies = [
+ "darling_core 0.13.4",
+ "darling_macro 0.13.4",
+]
+
+[[package]]
+name = "darling"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4529658bdda7fd6769b8614be250cdcfc3aeb0ee72fe66f9e41e5e5eb73eac02"
+dependencies = [
+ "darling_core 0.14.1",
+ "darling_macro 0.14.1",
 ]
 
 [[package]]
@@ -720,7 +803,35 @@ dependencies = [
  "ident_case",
  "proc-macro2",
  "quote",
- "strsim",
+ "strsim 0.9.3",
+ "syn",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.13.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "859d65a907b6852c9361e3185c862aae7fafd2887876799fa55f5f99dc40d610"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim 0.10.0",
+ "syn",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "649c91bc01e8b1eac09fb91e8dbc7d517684ca6be8ebc75bb9cafc894f9fdb6f"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim 0.10.0",
  "syn",
 ]
 
@@ -730,7 +841,29 @@ version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d9b5a2f4ac4969822c62224815d069952656cadc7084fdca9751e6d959189b72"
 dependencies = [
- "darling_core",
+ "darling_core 0.10.2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.13.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c972679f83bdf9c42bd905396b6c3588a843a17f0f16dfcfa3e2c5d57441835"
+dependencies = [
+ "darling_core 0.13.4",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ddfc69c5bfcbd2fc09a0f38451d2daf0e372e367986a83906d1b0dbc88134fb5"
+dependencies = [
+ "darling_core 0.14.1",
  "quote",
  "syn",
 ]
@@ -752,7 +885,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat"
-version = "1.89.0"
+version = "1.87.0"
 dependencies = [
  "ansi_term",
  "anyhow",
@@ -822,6 +955,26 @@ dependencies = [
  "uuid 1.1.2",
 ]
 
+[[package]]
+name = "deltachat-jsonrpc"
+version = "1.86.0"
+dependencies = [
+ "anyhow",
+ "async-channel",
+ "axum",
+ "deltachat",
+ "env_logger 0.9.0",
+ "futures",
+ "log",
+ "num-traits",
+ "serde",
+ "serde_json",
+ "tempfile",
+ "tokio",
+ "typescript-type-def",
+ "yerpc",
+]
+
 [[package]]
 name = "deltachat_derive"
 version = "2.0.0"
@@ -832,10 +985,11 @@ dependencies = [
 
 [[package]]
 name = "deltachat_ffi"
-version = "1.89.0"
+version = "1.87.0"
 dependencies = [
  "anyhow",
  "deltachat",
+ "deltachat-jsonrpc",
  "human-panic",
  "libc",
  "num-traits",
@@ -863,7 +1017,7 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2658621297f2cf68762a6f7dc0bb7e1ff2cfd6583daef8ee0fed6f7ec468ec0"
 dependencies = [
- "darling",
+ "darling 0.10.2",
  "derive_builder_core",
  "proc-macro2",
  "quote",
@@ -876,7 +1030,7 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2791ea3e372c8495c0bc2033991d76b512cd799d07491fbd6890124db9458bef"
 dependencies = [
- "darling",
+ "darling 0.10.2",
  "proc-macro2",
  "quote",
  "syn",
@@ -1130,7 +1284,20 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
 dependencies = [
  "atty",
- "humantime",
+ "humantime 1.3.0",
+ "log",
+ "regex",
+ "termcolor",
+]
+
+[[package]]
+name = "env_logger"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b2cf0344971ee6c64c31be0d530793fba457d322dfec2810c453d0ef228f9c3"
+dependencies = [
+ "atty",
+ "humantime 2.1.0",
  "log",
  "regex",
  "termcolor",
@@ -1544,6 +1711,12 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "http-range-header"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0bfe8eed0a9285ef776bb792479ea3834e8b94e13d615c2f66d03dd50a435a29"
+
 [[package]]
 name = "httparse"
 version = "1.7.1"
@@ -1586,6 +1759,12 @@ dependencies = [
  "quick-error 1.2.3",
 ]
 
+[[package]]
+name = "humantime"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
+
 [[package]]
 name = "hyper"
 version = "0.14.19"
@@ -1880,6 +2059,12 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3e378b66a060d48947b590737b30a1be76706c8dd7b8ba0f2fe3989c68a853f"
 
+[[package]]
+name = "matchit"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73cbba799671b762df5a175adf59ce145165747bb891505c43d09aefbbf38beb"
+
 [[package]]
 name = "md-5"
 version = "0.9.1"
@@ -2406,7 +2591,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "926d36b9553851b8b0005f1275891b392ee4d2d833852c417ed025477350fb9d"
 dependencies = [
- "env_logger",
+ "env_logger 0.7.1",
  "log",
 ]
 
@@ -3045,6 +3230,15 @@ dependencies = [
  "opaque-debug",
 ]
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e51e73328dc4ac0c7ccbda3a494dfa03df1de2f46018127f60c693f2648455b0"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "signature"
 version = "1.5.0"
@@ -3125,6 +3319,12 @@ version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6446ced80d6c486436db5c078dde11a9f73d42b57fb273121e160b84f63d894c"
 
+[[package]]
+name = "strsim"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+
 [[package]]
 name = "strum"
 version = "0.24.1"
@@ -3161,6 +3361,12 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "sync_wrapper"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "20518fe4a4c9acf048008599e464deb21beeae3d3578418951a189c235a7a9a8"
+
 [[package]]
 name = "synstructure"
 version = "0.12.6"
@@ -3292,6 +3498,7 @@ dependencies = [
  "once_cell",
  "parking_lot",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2",
  "tokio-macros",
  "winapi",
@@ -3344,6 +3551,18 @@ dependencies = [
  "xattr",
 ]
 
+[[package]]
+name = "tokio-tungstenite"
+version = "0.17.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06cda1232a49558c46f8a504d5b93101d42c0bf7f911f12a105ba48168f821ae"
+dependencies = [
+ "futures-util",
+ "log",
+ "tokio",
+ "tungstenite",
+]
+
 [[package]]
 name = "tokio-util"
 version = "0.7.3"
@@ -3367,6 +3586,47 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "tower"
+version = "0.4.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8fa9be0de6cf49e536ce1851f987bd21a43b771b09473c3549a6c853db37c1c"
+dependencies = [
+ "futures-core",
+ "futures-util",
+ "pin-project",
+ "pin-project-lite",
+ "tokio",
+ "tower-layer",
+ "tower-service",
+ "tracing",
+]
+
+[[package]]
+name = "tower-http"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c530c8675c1dbf98facee631536fa116b5fb6382d7dd6dc1b118d970eafe3ba"
+dependencies = [
+ "bitflags",
+ "bytes",
+ "futures-core",
+ "futures-util",
+ "http",
+ "http-body",
+ "http-range-header",
+ "pin-project-lite",
+ "tower",
+ "tower-layer",
+ "tower-service",
+]
+
+[[package]]
+name = "tower-layer"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "343bc9466d3fe6b0f960ef45960509f84480bf4fd96f92901afe7ff3df9d3a62"
+
 [[package]]
 name = "tower-service"
 version = "0.3.2"
@@ -3380,10 +3640,23 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a400e31aa60b9d44a52a8ee0343b5b18566b03a8321e0d321f695cf56e940160"
 dependencies = [
  "cfg-if",
+ "log",
  "pin-project-lite",
+ "tracing-attributes",
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-attributes"
+version = "0.1.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11c75893af559bc8e10716548bdef5cb2b983f8e637db9d0e15126b61b484ee2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tracing-core"
 version = "0.1.28"
@@ -3444,6 +3717,25 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
 
+[[package]]
+name = "tungstenite"
+version = "0.17.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d96a2dea40e7570482f28eb57afbe42d97551905da6a9400acc5c328d24004f5"
+dependencies = [
+ "base64 0.13.0",
+ "byteorder",
+ "bytes",
+ "http",
+ "httparse",
+ "log",
+ "rand 0.8.5",
+ "sha-1 0.10.0",
+ "thiserror",
+ "url",
+ "utf-8",
+]
+
 [[package]]
 name = "twofish"
 version = "0.6.0"
@@ -3461,6 +3753,30 @@ version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
 
+[[package]]
+name = "typescript-type-def"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b4d7f4a1cf8923b722bd56456e0dd560869a37fb849169f18b848f261f01b96"
+dependencies = [
+ "serde_json",
+ "typescript-type-def-derive",
+]
+
+[[package]]
+name = "typescript-type-def-derive"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8a8b246d662eb07a8627513dc78bad0b79da6d05e8224ecd559963efc597af0"
+dependencies = [
+ "darling 0.13.4",
+ "ident_case",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "unicode-bidi"
 version = "0.3.8"
@@ -3521,6 +3837,12 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "utf-8"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
+
 [[package]]
 name = "utf8parse"
 version = "0.2.0"
@@ -3809,6 +4131,41 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "yerpc"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d1baa6fce4cf16d1cff91b557baceac3e363106f66e555fff906a7f82dce8153"
+dependencies = [
+ "anyhow",
+ "async-channel",
+ "async-mutex",
+ "async-trait",
+ "axum",
+ "futures",
+ "futures-util",
+ "log",
+ "serde",
+ "serde_json",
+ "tokio",
+ "tracing",
+ "typescript-type-def",
+ "yerpc_derive",
+]
+
+[[package]]
+name = "yerpc_derive"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e70f944ca6789bc55ddc86839478f6d49c9d2a66e130f69fd1f8d171b3108990"
+dependencies = [
+ "convert_case",
+ "darling 0.14.1",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "zeroize"
 version = "1.5.6"
diff --git a/node/constants.js b/node/constants.js
index a3adb32d9..71861f015 100644
--- a/node/constants.js
+++ b/node/constants.js
@@ -83,7 +83,6 @@ module.exports = {
   DC_MSG_GIF: 21,
   DC_MSG_ID_DAYMARKER: 9,
   DC_MSG_ID_LAST_SPECIAL: 9,
-  DC_MSG_ID_MARKER1: 1,
   DC_MSG_IMAGE: 20,
   DC_MSG_STICKER: 23,
   DC_MSG_TEXT: 10,
diff --git a/node/lib/chat.ts b/node/lib/chat.ts
index 18ec2eb26..7ab068e8e 100644
--- a/node/lib/chat.ts
+++ b/node/lib/chat.ts
@@ -79,6 +79,10 @@ export class Chat {
     return this.getType() === C.DC_CHAT_TYPE_GROUP
   }
 
+  isBroadcast(): boolean {
+    return this.getType() === C.DC_CHAT_TYPE_BROADCAST
+  }
+
   isMuted(): boolean {
     return Boolean(binding.dcn_chat_is_muted(this.dc_chat))
   }
diff --git a/node/lib/constants.ts b/node/lib/constants.ts
index 61bbbe28e..ff88f5d1c 100644
--- a/node/lib/constants.ts
+++ b/node/lib/constants.ts
@@ -83,7 +83,6 @@ export enum C {
   DC_MSG_GIF = 21,
   DC_MSG_ID_DAYMARKER = 9,
   DC_MSG_ID_LAST_SPECIAL = 9,
-  DC_MSG_ID_MARKER1 = 1,
   DC_MSG_IMAGE = 20,
   DC_MSG_STICKER = 23,
   DC_MSG_TEXT = 10,
diff --git a/node/lib/types.ts b/node/lib/types.ts
index feb6e981e..e42fd0ee5 100644
--- a/node/lib/types.ts
+++ b/node/lib/types.ts
@@ -5,6 +5,7 @@ export type ChatTypes =
   | C.DC_CHAT_TYPE_MAILINGLIST
   | C.DC_CHAT_TYPE_SINGLE
   | C.DC_CHAT_TYPE_UNDEFINED
+  | C.DC_CHAT_TYPE_BROADCAST
 
 export interface ChatJSON {
   archived: boolean