diff --git a/Cargo.lock b/Cargo.lock
index d186d0c17..2d7ac9ab5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1242,6 +1242,7 @@ dependencies = [
  "log",
  "num-traits",
  "sanitize-filename",
+ "schemars",
  "serde",
  "serde_json",
  "tempfile",
@@ -1514,6 +1515,12 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "dyn-clone"
+version = "1.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68b0cf012f1230e43cd00ebb729c6bb58707ecfa8ad08b52ef3a4ccd2697fc30"
+
 [[package]]
 name = "ecdsa"
 version = "0.14.8"
@@ -4248,6 +4255,30 @@ dependencies = [
  "windows-sys 0.42.0",
 ]
 
+[[package]]
+name = "schemars"
+version = "0.8.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02c613288622e5f0c3fdc5dbd4db1c5fbe752746b1d1a56a0630b78fd00de44f"
+dependencies = [
+ "dyn-clone",
+ "schemars_derive",
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "schemars_derive"
+version = "0.8.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "109da1e6b197438deb6db99952990c7f959572794b80ff93707d55a232545e7c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "serde_derive_internals",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
@@ -4368,6 +4399,17 @@ dependencies = [
  "syn 2.0.15",
 ]
 
+[[package]]
+name = "serde_derive_internals"
+version = "0.26.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85bf8229e7920a9f636479437026331ce11aa132b4dde37d121944a44d6e5f3c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "serde_json"
 version = "1.0.96"
@@ -5799,9 +5841,9 @@ dependencies = [
 
 [[package]]
 name = "yerpc"
-version = "0.4.4"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2c26a804eaa30c1ff1a296dc6dd1a7d7c622750dafcd0d6b2ed5e3c5c3beb22"
+checksum = "30fc983d32883ecb563227a2dcdcbe8567decd9c533b5ecca7e3099e2f7d4c96"
 dependencies = [
  "anyhow",
  "async-channel",
@@ -5811,6 +5853,7 @@ dependencies = [
  "futures",
  "futures-util",
  "log",
+ "schemars",
  "serde",
  "serde_json",
  "tokio",
@@ -5821,9 +5864,9 @@ dependencies = [
 
 [[package]]
 name = "yerpc_derive"
-version = "0.4.3"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bd53ff9053698697b92c2535bf7ecb983fd5d546d690b7c725e5070d6d9a620"
+checksum = "6d6b8ce490e8719fe84d7d80ad4d58572b2ea9d7a83d156f6afd6ab3ad5cfb94"
 dependencies = [
  "convert_case 0.5.0",
  "darling 0.14.3",
diff --git a/deltachat-ffi/Cargo.toml b/deltachat-ffi/Cargo.toml
index 5ccf92bcb..5d97eb66b 100644
--- a/deltachat-ffi/Cargo.toml
+++ b/deltachat-ffi/Cargo.toml
@@ -25,7 +25,7 @@ anyhow = "1"
 thiserror = "1"
 rand = "0.8"
 once_cell = "1.17.0"
-yerpc = { version = "0.4.4", features = ["anyhow_expose"] }
+yerpc = { version = "0.5.1", features = ["anyhow_expose"] }
 
 [features]
 default = ["vendored"]
diff --git a/deltachat-jsonrpc/Cargo.toml b/deltachat-jsonrpc/Cargo.toml
index 767a0ee90..14d01f29a 100644
--- a/deltachat-jsonrpc/Cargo.toml
+++ b/deltachat-jsonrpc/Cargo.toml
@@ -15,13 +15,14 @@ required-features = ["webserver"]
 anyhow = "1"
 deltachat = { path = ".." }
 num-traits = "0.2"
+schemars = "0.8.11"
 serde = { version = "1.0", features = ["derive"] }
 tempfile = "3.3.0"
 log = "0.4"
 async-channel = { version = "1.8.0" }
 futures = { version = "0.3.28" }
 serde_json = "1.0.96"
-yerpc = { version = "0.4.4", features = ["anyhow_expose"] }
+yerpc = { version = "0.5.1", features = ["anyhow_expose", "openrpc"] }
 typescript-type-def = { version = "0.5.5", features = ["json_value"] }
 tokio = { version = "1.28.0" }
 sanitize-filename = "0.4"
diff --git a/deltachat-jsonrpc/src/api/mod.rs b/deltachat-jsonrpc/src/api/mod.rs
index b71718299..fca691f29 100644
--- a/deltachat-jsonrpc/src/api/mod.rs
+++ b/deltachat-jsonrpc/src/api/mod.rs
@@ -144,7 +144,11 @@ impl CommandApi {
     }
 }
 
-#[rpc(all_positional, ts_outdir = "typescript/generated")]
+#[rpc(
+    all_positional,
+    ts_outdir = "typescript/generated",
+    openrpc_outdir = "openrpc"
+)]
 impl CommandApi {
     /// Test function.
     async fn sleep(&self, delay: f64) {
diff --git a/deltachat-jsonrpc/src/api/types/account.rs b/deltachat-jsonrpc/src/api/types/account.rs
index 8e0f80aef..d27a53723 100644
--- a/deltachat-jsonrpc/src/api/types/account.rs
+++ b/deltachat-jsonrpc/src/api/types/account.rs
@@ -6,7 +6,7 @@ use typescript_type_def::TypeDef;
 
 use super::color_int_to_hex_string;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(tag = "type")]
 pub enum Account {
     #[serde(rename_all = "camelCase")]
diff --git a/deltachat-jsonrpc/src/api/types/chat.rs b/deltachat-jsonrpc/src/api/types/chat.rs
index a658e26f3..d5f0b8c0b 100644
--- a/deltachat-jsonrpc/src/api/types/chat.rs
+++ b/deltachat-jsonrpc/src/api/types/chat.rs
@@ -13,7 +13,7 @@ use typescript_type_def::TypeDef;
 use super::color_int_to_hex_string;
 use super::contact::ContactObject;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename_all = "camelCase")]
 pub struct FullChat {
     id: u32,
@@ -121,7 +121,7 @@ impl FullChat {
 /// - can_send
 ///
 /// used when you only need the basic metadata of a chat like type, name, profile picture
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename_all = "camelCase")]
 pub struct BasicChat {
     id: u32,
@@ -166,7 +166,7 @@ impl BasicChat {
     }
 }
 
-#[derive(Clone, Serialize, Deserialize, TypeDef)]
+#[derive(Clone, Serialize, Deserialize, TypeDef, schemars::JsonSchema)]
 pub enum MuteDuration {
     NotMuted,
     Forever,
@@ -191,7 +191,7 @@ impl MuteDuration {
     }
 }
 
-#[derive(Clone, Serialize, Deserialize, TypeDef)]
+#[derive(Clone, Serialize, Deserialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename = "ChatVisibility")]
 pub enum JSONRPCChatVisibility {
     Normal,
diff --git a/deltachat-jsonrpc/src/api/types/chat_list.rs b/deltachat-jsonrpc/src/api/types/chat_list.rs
index 5c63b5def..c7603de46 100644
--- a/deltachat-jsonrpc/src/api/types/chat_list.rs
+++ b/deltachat-jsonrpc/src/api/types/chat_list.rs
@@ -8,13 +8,16 @@ use deltachat::{
     chatlist::Chatlist,
 };
 use num_traits::cast::ToPrimitive;
-use serde::Serialize;
+use serde::{Deserialize, Serialize};
 use typescript_type_def::TypeDef;
 
 use super::color_int_to_hex_string;
 use super::message::MessageViewtype;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Deserialize, Serialize, TypeDef, schemars::JsonSchema)]
+pub struct ChatListEntry(pub u32, pub u32);
+
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(tag = "type")]
 pub enum ChatListItemFetchResult {
     #[serde(rename_all = "camelCase")]
diff --git a/deltachat-jsonrpc/src/api/types/contact.rs b/deltachat-jsonrpc/src/api/types/contact.rs
index d67fc7fb1..53b0ef67c 100644
--- a/deltachat-jsonrpc/src/api/types/contact.rs
+++ b/deltachat-jsonrpc/src/api/types/contact.rs
@@ -6,7 +6,7 @@ use typescript_type_def::TypeDef;
 
 use super::color_int_to_hex_string;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename = "Contact", rename_all = "camelCase")]
 pub struct ContactObject {
     address: String,
diff --git a/deltachat-jsonrpc/src/api/types/events.rs b/deltachat-jsonrpc/src/api/types/events.rs
index 37e8c6317..892302a4f 100644
--- a/deltachat-jsonrpc/src/api/types/events.rs
+++ b/deltachat-jsonrpc/src/api/types/events.rs
@@ -2,7 +2,7 @@ use deltachat::{Event as CoreEvent, EventType as CoreEventType};
 use serde::Serialize;
 use typescript_type_def::TypeDef;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename_all = "camelCase")]
 pub struct Event {
     /// Event payload.
@@ -21,7 +21,7 @@ impl From<CoreEvent> for Event {
     }
 }
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(tag = "type")]
 pub enum EventType {
     /// The library-user may write an informational string to the log.
diff --git a/deltachat-jsonrpc/src/api/types/http.rs b/deltachat-jsonrpc/src/api/types/http.rs
index 3b9d29509..9121a677e 100644
--- a/deltachat-jsonrpc/src/api/types/http.rs
+++ b/deltachat-jsonrpc/src/api/types/http.rs
@@ -2,7 +2,7 @@ use deltachat::net::HttpResponse as CoreHttpResponse;
 use serde::Serialize;
 use typescript_type_def::TypeDef;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 pub struct HttpResponse {
     /// base64-encoded response body.
     blob: String,
diff --git a/deltachat-jsonrpc/src/api/types/location.rs b/deltachat-jsonrpc/src/api/types/location.rs
index 374e408d8..f610b42d3 100644
--- a/deltachat-jsonrpc/src/api/types/location.rs
+++ b/deltachat-jsonrpc/src/api/types/location.rs
@@ -2,7 +2,7 @@ use deltachat::location::Location;
 use serde::Serialize;
 use typescript_type_def::TypeDef;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename = "Location", rename_all = "camelCase")]
 pub struct JsonrpcLocation {
     pub location_id: u32,
diff --git a/deltachat-jsonrpc/src/api/types/message.rs b/deltachat-jsonrpc/src/api/types/message.rs
index b030e7616..7ebcccc46 100644
--- a/deltachat-jsonrpc/src/api/types/message.rs
+++ b/deltachat-jsonrpc/src/api/types/message.rs
@@ -10,8 +10,7 @@ use deltachat::message::MsgId;
 use deltachat::message::Viewtype;
 use deltachat::reaction::get_msg_reactions;
 use num_traits::cast::ToPrimitive;
-use serde::Deserialize;
-use serde::Serialize;
+use serde::{Deserialize, Serialize};
 use typescript_type_def::TypeDef;
 
 use super::color_int_to_hex_string;
@@ -19,14 +18,14 @@ use super::contact::ContactObject;
 use super::reactions::JSONRPCReactions;
 use super::webxdc::WebxdcMessageInfo;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename_all = "camelCase", tag = "variant")]
 pub enum MessageLoadResult {
     Message(MessageObject),
     LoadingError { error: String },
 }
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename = "Message", rename_all = "camelCase")]
 pub struct MessageObject {
     id: u32,
@@ -86,7 +85,7 @@ pub struct MessageObject {
     reactions: Option<JSONRPCReactions>,
 }
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(tag = "kind")]
 enum MessageQuote {
     JustText {
@@ -238,7 +237,7 @@ impl MessageObject {
     }
 }
 
-#[derive(Serialize, Deserialize, TypeDef)]
+#[derive(Serialize, Deserialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename = "Viewtype")]
 pub enum MessageViewtype {
     Unknown,
@@ -314,7 +313,7 @@ impl From<MessageViewtype> for Viewtype {
     }
 }
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 pub enum DownloadState {
     Done,
     Available,
@@ -333,7 +332,7 @@ impl From<download::DownloadState> for DownloadState {
     }
 }
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 pub enum SystemMessageType {
     Unknown,
     GroupNameChanged,
@@ -388,7 +387,7 @@ impl From<deltachat::mimeparser::SystemMessage> for SystemMessageType {
     }
 }
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename_all = "camelCase")]
 pub struct MessageNotificationInfo {
     id: u32,
@@ -446,7 +445,7 @@ impl MessageNotificationInfo {
     }
 }
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename_all = "camelCase")]
 pub struct MessageSearchResult {
     id: u32,
@@ -507,7 +506,7 @@ impl MessageSearchResult {
     }
 }
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename_all = "camelCase", rename = "MessageListItem", tag = "kind")]
 pub enum JSONRPCMessageListItem {
     Message {
@@ -533,7 +532,7 @@ impl From<ChatItem> for JSONRPCMessageListItem {
     }
 }
 
-#[derive(Deserialize, TypeDef)]
+#[derive(Deserialize, Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename_all = "camelCase")]
 pub struct MessageData {
     pub text: Option<String>,
@@ -545,7 +544,7 @@ pub struct MessageData {
     pub quoted_message_id: Option<u32>,
 }
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename_all = "camelCase")]
 pub struct MessageReadReceipt {
     pub contact_id: u32,
diff --git a/deltachat-jsonrpc/src/api/types/provider_info.rs b/deltachat-jsonrpc/src/api/types/provider_info.rs
index 1cc5a7d46..43b868444 100644
--- a/deltachat-jsonrpc/src/api/types/provider_info.rs
+++ b/deltachat-jsonrpc/src/api/types/provider_info.rs
@@ -3,7 +3,7 @@ use num_traits::cast::ToPrimitive;
 use serde::Serialize;
 use typescript_type_def::TypeDef;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename_all = "camelCase")]
 pub struct ProviderInfo {
     pub before_login_hint: String,
diff --git a/deltachat-jsonrpc/src/api/types/qr.rs b/deltachat-jsonrpc/src/api/types/qr.rs
index 607b495ec..d53ebeab5 100644
--- a/deltachat-jsonrpc/src/api/types/qr.rs
+++ b/deltachat-jsonrpc/src/api/types/qr.rs
@@ -2,7 +2,7 @@ use deltachat::qr::Qr;
 use serde::Serialize;
 use typescript_type_def::TypeDef;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename = "Qr", rename_all = "camelCase")]
 #[serde(tag = "type")]
 pub enum QrObject {
diff --git a/deltachat-jsonrpc/src/api/types/reactions.rs b/deltachat-jsonrpc/src/api/types/reactions.rs
index d068b23c5..37739c848 100644
--- a/deltachat-jsonrpc/src/api/types/reactions.rs
+++ b/deltachat-jsonrpc/src/api/types/reactions.rs
@@ -6,7 +6,7 @@ use serde::Serialize;
 use typescript_type_def::TypeDef;
 
 /// A single reaction emoji.
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename = "Reaction", rename_all = "camelCase")]
 pub struct JSONRPCReaction {
     /// Emoji.
@@ -20,7 +20,7 @@ pub struct JSONRPCReaction {
 }
 
 /// Structure representing all reactions to a particular message.
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename = "Reactions", rename_all = "camelCase")]
 pub struct JSONRPCReactions {
     /// Map from a contact to it's reaction to message.
diff --git a/deltachat-jsonrpc/src/api/types/webxdc.rs b/deltachat-jsonrpc/src/api/types/webxdc.rs
index f89310667..71db9ed93 100644
--- a/deltachat-jsonrpc/src/api/types/webxdc.rs
+++ b/deltachat-jsonrpc/src/api/types/webxdc.rs
@@ -8,7 +8,7 @@ use typescript_type_def::TypeDef;
 
 use super::maybe_empty_string_to_option;
 
-#[derive(Serialize, TypeDef)]
+#[derive(Serialize, TypeDef, schemars::JsonSchema)]
 #[serde(rename = "WebxdcMessageInfo", rename_all = "camelCase")]
 pub struct WebxdcMessageInfo {
     /// The name of the app.
diff --git a/deltachat-rpc-server/Cargo.toml b/deltachat-rpc-server/Cargo.toml
index b1f8151fb..48146f39b 100644
--- a/deltachat-rpc-server/Cargo.toml
+++ b/deltachat-rpc-server/Cargo.toml
@@ -21,7 +21,7 @@ serde_json = "1.0.96"
 serde = { version = "1.0", features = ["derive"] }
 tokio = { version = "1.28.0", features = ["io-std"] }
 tokio-util = "0.7.8"
-yerpc = { version = "0.4.0", features = ["anyhow_expose"] }
+yerpc = { version = "0.5.1", features = ["anyhow_expose"] }
 
 [features]
 default = ["vendored"]