diff --git a/deltachat-jsonrpc/src/api/mod.rs b/deltachat-jsonrpc/src/api/mod.rs
index a54f19e0d..20bc39bb7 100644
--- a/deltachat-jsonrpc/src/api/mod.rs
+++ b/deltachat-jsonrpc/src/api/mod.rs
@@ -22,6 +22,7 @@ pub mod events;
 pub mod types;
 
 use crate::api::types::chat_list::{get_chat_list_item_by_id, ChatListItemFetchResult};
+use crate::api::types::QrObject;
 
 use types::account::Account;
 use types::chat::FullChat;
@@ -202,6 +203,13 @@ impl CommandApi {
         qr::set_config_from_qr(&ctx, &qr_content).await
     }
 
+    async fn check_qr(&self, account_id: u32, qr_content: String) -> Result<QrObject> {
+        let ctx = self.get_context(account_id).await?;
+        let qr = qr::check_qr(&ctx, &qr_content).await?;
+        let qr_object = QrObject::from(qr);
+        Ok(qr_object)
+    }
+
     async fn get_config(&self, account_id: u32, key: String) -> Result<Option<String>> {
         let ctx = self.get_context(account_id).await?;
         get_config(&ctx, &key).await
diff --git a/deltachat-jsonrpc/src/api/types/account.rs b/deltachat-jsonrpc/src/api/types/account.rs
index 9a2d88100..8e0f80aef 100644
--- a/deltachat-jsonrpc/src/api/types/account.rs
+++ b/deltachat-jsonrpc/src/api/types/account.rs
@@ -19,9 +19,7 @@ pub enum Account {
         color: String,
     },
     #[serde(rename_all = "camelCase")]
-    Unconfigured {
-        id: u32,
-    },
+    Unconfigured { id: u32 },
 }
 
 impl Account {
diff --git a/deltachat-jsonrpc/src/api/types/mod.rs b/deltachat-jsonrpc/src/api/types/mod.rs
index cb9d63f09..59440de83 100644
--- a/deltachat-jsonrpc/src/api/types/mod.rs
+++ b/deltachat-jsonrpc/src/api/types/mod.rs
@@ -1,3 +1,7 @@
+use deltachat::qr::Qr;
+use serde::Serialize;
+use typescript_type_def::TypeDef;
+
 pub mod account;
 pub mod chat;
 pub mod chat_list;
@@ -17,3 +21,208 @@ fn maybe_empty_string_to_option(string: String) -> Option<String> {
         Some(string)
     }
 }
+
+#[derive(Serialize, TypeDef)]
+#[serde(rename = "Qr", rename_all = "camelCase")]
+#[serde(tag = "type")]
+pub enum QrObject {
+    AskVerifyContact {
+        contact_id: u32,
+        fingerprint: String,
+        invitenumber: String,
+        authcode: String,
+    },
+    AskVerifyGroup {
+        grpname: String,
+        grpid: String,
+        contact_id: u32,
+        fingerprint: String,
+        invitenumber: String,
+        authcode: String,
+    },
+    FprOk {
+        contact_id: u32,
+    },
+    FprMismatch {
+        contact_id: Option<u32>,
+    },
+    FprWithoutAddr {
+        fingerprint: String,
+    },
+    Account {
+        domain: String,
+    },
+    WebrtcInstance {
+        domain: String,
+        instance_pattern: String,
+    },
+    Addr {
+        contact_id: u32,
+    },
+    Url {
+        url: String,
+    },
+    Text {
+        text: String,
+    },
+    WithdrawVerifyContact {
+        contact_id: u32,
+        fingerprint: String,
+        invitenumber: String,
+        authcode: String,
+    },
+    WithdrawVerifyGroup {
+        grpname: String,
+        grpid: String,
+        contact_id: u32,
+        fingerprint: String,
+        invitenumber: String,
+        authcode: String,
+    },
+    ReviveVerifyContact {
+        contact_id: u32,
+        fingerprint: String,
+        invitenumber: String,
+        authcode: String,
+    },
+    ReviveVerifyGroup {
+        grpname: String,
+        grpid: String,
+        contact_id: u32,
+        fingerprint: String,
+        invitenumber: String,
+        authcode: String,
+    },
+}
+
+impl From<Qr> for QrObject {
+    fn from(qr: Qr) -> Self {
+        match qr {
+            Qr::AskVerifyContact {
+                contact_id,
+                fingerprint,
+                invitenumber,
+                authcode,
+            } => {
+                let contact_id = contact_id.to_u32();
+                let fingerprint = fingerprint.to_string();
+                QrObject::AskVerifyContact {
+                    contact_id,
+                    fingerprint,
+                    invitenumber,
+                    authcode,
+                }
+            }
+            Qr::AskVerifyGroup {
+                grpname,
+                grpid,
+                contact_id,
+                fingerprint,
+                invitenumber,
+                authcode,
+            } => {
+                let contact_id = contact_id.to_u32();
+                let fingerprint = fingerprint.to_string();
+                QrObject::AskVerifyGroup {
+                    grpname,
+                    grpid,
+                    contact_id,
+                    fingerprint,
+                    invitenumber,
+                    authcode,
+                }
+            }
+            Qr::FprOk { contact_id } => {
+                let contact_id = contact_id.to_u32();
+                QrObject::FprOk { contact_id }
+            }
+            Qr::FprMismatch { contact_id } => {
+                let contact_id = contact_id.map(|contact_id| contact_id.to_u32());
+                QrObject::FprMismatch { contact_id }
+            }
+            Qr::FprWithoutAddr { fingerprint } => QrObject::FprWithoutAddr { fingerprint },
+            Qr::Account { domain } => QrObject::Account { domain },
+            Qr::WebrtcInstance {
+                domain,
+                instance_pattern,
+            } => QrObject::WebrtcInstance {
+                domain,
+                instance_pattern,
+            },
+            Qr::Addr { contact_id } => {
+                let contact_id = contact_id.to_u32();
+                QrObject::Addr { contact_id }
+            }
+            Qr::Url { url } => QrObject::Url { url },
+            Qr::Text { text } => QrObject::Text { text },
+            Qr::WithdrawVerifyContact {
+                contact_id,
+                fingerprint,
+                invitenumber,
+                authcode,
+            } => {
+                let contact_id = contact_id.to_u32();
+                let fingerprint = fingerprint.to_string();
+                QrObject::WithdrawVerifyContact {
+                    contact_id,
+                    fingerprint,
+                    invitenumber,
+                    authcode,
+                }
+            }
+            Qr::WithdrawVerifyGroup {
+                grpname,
+                grpid,
+                contact_id,
+                fingerprint,
+                invitenumber,
+                authcode,
+            } => {
+                let contact_id = contact_id.to_u32();
+                let fingerprint = fingerprint.to_string();
+                QrObject::WithdrawVerifyGroup {
+                    grpname,
+                    grpid,
+                    contact_id,
+                    fingerprint,
+                    invitenumber,
+                    authcode,
+                }
+            }
+            Qr::ReviveVerifyContact {
+                contact_id,
+                fingerprint,
+                invitenumber,
+                authcode,
+            } => {
+                let contact_id = contact_id.to_u32();
+                let fingerprint = fingerprint.to_string();
+                QrObject::ReviveVerifyContact {
+                    contact_id,
+                    fingerprint,
+                    invitenumber,
+                    authcode,
+                }
+            }
+            Qr::ReviveVerifyGroup {
+                grpname,
+                grpid,
+                contact_id,
+                fingerprint,
+                invitenumber,
+                authcode,
+            } => {
+                let contact_id = contact_id.to_u32();
+                let fingerprint = fingerprint.to_string();
+                QrObject::ReviveVerifyGroup {
+                    grpname,
+                    grpid,
+                    contact_id,
+                    fingerprint,
+                    invitenumber,
+                    authcode,
+                }
+            }
+        }
+    }
+}
diff --git a/deltachat-jsonrpc/typescript/generated/client.ts b/deltachat-jsonrpc/typescript/generated/client.ts
index 5b3fcbeed..c278417da 100644
--- a/deltachat-jsonrpc/typescript/generated/client.ts
+++ b/deltachat-jsonrpc/typescript/generated/client.ts
@@ -123,6 +123,11 @@ export class RawClient {
   }
 
 
+  public checkQr(accountId: T.U32, qrContent: string): Promise<T.Qr> {
+    return (this._transport.request('check_qr', [accountId, qrContent] as RPC.Params)) as Promise<T.Qr>;
+  }
+
+
   public getConfig(accountId: T.U32, key: string): Promise<(string|null)> {
     return (this._transport.request('get_config', [accountId, key] as RPC.Params)) as Promise<(string|null)>;
   }
diff --git a/deltachat-jsonrpc/typescript/generated/types.ts b/deltachat-jsonrpc/typescript/generated/types.ts
index 9d07b0036..076541d45 100644
--- a/deltachat-jsonrpc/typescript/generated/types.ts
+++ b/deltachat-jsonrpc/typescript/generated/types.ts
@@ -1,97 +1,385 @@
 // AUTO-GENERATED by typescript-type-def
 
-export type U32=number;
-export type Account=(({"type":"Configured";}&{"id":U32;"displayName":(string|null);"addr":(string|null);"profileImage":(string|null);"color":string;})|({"type":"Unconfigured";}&{"id":U32;}));
-export type ProviderInfo={"beforeLoginHint":string;"overviewPage":string;"status":U32;};
-export type Usize=number;
-export type ChatListEntry=[U32,U32];
-export type I64=number;
-export type ChatListItemFetchResult=(({"type":"ChatListItem";}&{"id":U32;"name":string;"avatarPath":(string|null);"color":string;"lastUpdated":(I64|null);"summaryText1":string;"summaryText2":string;"summaryStatus":U32;"isProtected":boolean;"isGroup":boolean;"freshMessageCounter":Usize;"isSelfTalk":boolean;"isDeviceTalk":boolean;"isSendingLocation":boolean;"isSelfInGroup":boolean;"isArchived":boolean;"isPinned":boolean;"isMuted":boolean;"isContactRequest":boolean;
-/**
- * contact id if this is a dm chat (for view profile entry in context menu)
- */
-"dmChatContact":(U32|null);})|{"type":"ArchiveLink";}|({"type":"Error";}&{"id":U32;"error":string;}));
-export type Contact={"address":string;"color":string;"authName":string;"status":string;"displayName":string;"id":U32;"name":string;"profileImage":(string|null);"nameAndAddr":string;"isBlocked":boolean;"isVerified":boolean;};
-export type FullChat={"id":U32;"name":string;"isProtected":boolean;"profileImage":(string|null);"archived":boolean;"chatType":U32;"isUnpromoted":boolean;"isSelfTalk":boolean;"contacts":(Contact)[];"contactIds":(U32)[];"color":string;"freshMessageCounter":Usize;"isContactRequest":boolean;"isDeviceChat":boolean;"selfInGroup":boolean;"isMuted":boolean;"ephemeralTimer":U32;"canSend":boolean;};
-export type Viewtype=("Unknown"|
-/**
- * Text message.
- */
-"Text"|
-/**
- * Image message.
- * If the image is an animated GIF, the type `Viewtype.Gif` should be used.
- */
-"Image"|
-/**
- * Animated GIF message.
- */
-"Gif"|
-/**
- * Message containing a sticker, similar to image.
- * If possible, the ui should display the image without borders in a transparent way.
- * A click on a sticker will offer to install the sticker set in some future.
- */
-"Sticker"|
-/**
- * Message containing an Audio file.
- */
-"Audio"|
-/**
- * A voice message that was directly recorded by the user.
- * For all other audio messages, the type `Viewtype.Audio` should be used.
- */
-"Voice"|
-/**
- * Video messages.
- */
-"Video"|
-/**
- * Message containing any file, eg. a PDF.
- */
-"File"|
-/**
- * Message is an invitation to a videochat.
- */
-"VideochatInvitation"|
-/**
- * Message is an webxdc instance.
- */
-"Webxdc");
-export type I32=number;
-export type U64=number;
-export type Message={"id":U32;"chatId":U32;"fromId":U32;"quotedText":(string|null);"quotedMessageId":(U32|null);"text":(string|null);"hasLocation":boolean;"hasHtml":boolean;"viewType":Viewtype;"state":U32;"timestamp":I64;"sortTimestamp":I64;"receivedTimestamp":I64;"hasDeviatingTimestamp":boolean;"subject":string;"showPadlock":boolean;"isSetupmessage":boolean;"isInfo":boolean;"isForwarded":boolean;"duration":I32;"dimensionsHeight":I32;"dimensionsWidth":I32;"videochatType":(U32|null);"videochatUrl":(string|null);"overrideSenderName":(string|null);"sender":Contact;"setupCodeBegin":(string|null);"file":(string|null);"fileMime":(string|null);"fileBytes":U64;"fileName":(string|null);};
-export type WebxdcMessageInfo={
-/**
- * The name of the app.
- * 
- * Defaults to the filename if not set in the manifest.
- */
-"name":string;
-/**
- * App icon file name.
- * Defaults to an standard icon if nothing is set in the manifest.
- * 
- * To get the file, use dc_msg_get_webxdc_blob(). (not yet in jsonrpc, use rust api or cffi for it)
- * 
- * App icons should should be square,
- * the implementations will add round corners etc. as needed.
- */
-"icon":string;
-/**
- * if the Webxdc represents a document, then this is the name of the document
- */
-"document":(string|null);
-/**
- * short string describing the state of the app,
- * sth. as "2 votes", "Highscore: 123",
- * can be changed by the apps
- */
-"summary":(string|null);
-/**
- * URL where the source code of the Webxdc and other information can be found;
- * defaults to an empty string.
- * Implementations may offer an menu or a button to open this URL.
- */
-"sourceCodeUrl":(string|null);};
-export type __AllTyps=[string,boolean,Record<string,string>,U32,U32,null,(U32)[],U32,null,(U32|null),(Account)[],U32,Account,U32,string,(ProviderInfo|null),U32,boolean,U32,Record<string,string>,U32,string,(string|null),null,U32,Record<string,(string|null)>,null,U32,string,null,U32,string,(string|null),U32,(string)[],Record<string,(string|null)>,U32,null,U32,null,U32,(U32)[],U32,U32,Usize,U32,string,U32,U32,string,null,U32,(U32|null),(string|null),(U32|null),(ChatListEntry)[],U32,(ChatListEntry)[],Record<U32,ChatListItemFetchResult>,U32,U32,FullChat,U32,U32,null,U32,U32,null,U32,string,string,U32,U32,U32,U32,(U32)[],U32,U32,Message,U32,(U32)[],Record<U32,Message>,U32,U32,Contact,U32,string,(string|null),U32,U32,U32,U32,U32,U32,null,U32,U32,null,U32,(Contact)[],U32,U32,(string|null),(U32)[],U32,U32,(string|null),(Contact)[],U32,(U32)[],Record<U32,Contact>,U32,U32,Viewtype,(Viewtype|null),(Viewtype|null),(U32)[],U32,U32,string,string,null,U32,U32,U32,string,U32,U32,WebxdcMessageInfo,U32,string,U32,U32];
+export type U32 = number;
+export type Account =
+  | ({ type: "Configured" } & {
+      id: U32;
+      displayName: string | null;
+      addr: string | null;
+      profileImage: string | null;
+      color: string;
+    })
+  | ({ type: "Unconfigured" } & { id: U32 });
+export type ProviderInfo = {
+  beforeLoginHint: string;
+  overviewPage: string;
+  status: U32;
+};
+export type Qr =
+  | ({ type: "askVerifyContact" } & {
+      contact_id: U32;
+      fingerprint: string;
+      invitenumber: string;
+      authcode: string;
+    })
+  | ({ type: "askVerifyGroup" } & {
+      grpname: string;
+      grpid: string;
+      contact_id: U32;
+      fingerprint: string;
+      invitenumber: string;
+      authcode: string;
+    })
+  | ({ type: "fprOk" } & { contact_id: U32 })
+  | ({ type: "fprMismatch" } & { contact_id: U32 | null })
+  | ({ type: "fprWithoutAddr" } & { fingerprint: string })
+  | ({ type: "account" } & { domain: string })
+  | ({ type: "webrtcInstance" } & { domain: string; instance_pattern: string })
+  | ({ type: "addr" } & { contact_id: U32 })
+  | ({ type: "url" } & { url: string })
+  | ({ type: "text" } & { text: string })
+  | ({ type: "withdrawVerifyContact" } & {
+      contact_id: U32;
+      fingerprint: string;
+      invitenumber: string;
+      authcode: string;
+    })
+  | ({ type: "withdrawVerifyGroup" } & {
+      grpname: string;
+      grpid: string;
+      contact_id: U32;
+      fingerprint: string;
+      invitenumber: string;
+      authcode: string;
+    })
+  | ({ type: "reviveVerifyContact" } & {
+      contact_id: U32;
+      fingerprint: string;
+      invitenumber: string;
+      authcode: string;
+    })
+  | ({ type: "reviveVerifyGroup" } & {
+      grpname: string;
+      grpid: string;
+      contact_id: U32;
+      fingerprint: string;
+      invitenumber: string;
+      authcode: string;
+    });
+export type Usize = number;
+export type ChatListEntry = [U32, U32];
+export type I64 = number;
+export type ChatListItemFetchResult =
+  | ({ type: "ChatListItem" } & {
+      id: U32;
+      name: string;
+      avatarPath: string | null;
+      color: string;
+      lastUpdated: I64 | null;
+      summaryText1: string;
+      summaryText2: string;
+      summaryStatus: U32;
+      isProtected: boolean;
+      isGroup: boolean;
+      freshMessageCounter: Usize;
+      isSelfTalk: boolean;
+      isDeviceTalk: boolean;
+      isSendingLocation: boolean;
+      isSelfInGroup: boolean;
+      isArchived: boolean;
+      isPinned: boolean;
+      isMuted: boolean;
+      isContactRequest: boolean;
+      /**
+       * contact id if this is a dm chat (for view profile entry in context menu)
+       */
+      dmChatContact: U32 | null;
+    })
+  | { type: "ArchiveLink" }
+  | ({ type: "Error" } & { id: U32; error: string });
+export type Contact = {
+  address: string;
+  color: string;
+  authName: string;
+  status: string;
+  displayName: string;
+  id: U32;
+  name: string;
+  profileImage: string | null;
+  nameAndAddr: string;
+  isBlocked: boolean;
+  isVerified: boolean;
+};
+export type FullChat = {
+  id: U32;
+  name: string;
+  isProtected: boolean;
+  profileImage: string | null;
+  archived: boolean;
+  chatType: U32;
+  isUnpromoted: boolean;
+  isSelfTalk: boolean;
+  contacts: Contact[];
+  contactIds: U32[];
+  color: string;
+  freshMessageCounter: Usize;
+  isContactRequest: boolean;
+  isDeviceChat: boolean;
+  selfInGroup: boolean;
+  isMuted: boolean;
+  ephemeralTimer: U32;
+  canSend: boolean;
+};
+export type Viewtype =
+  | "Unknown"
+  /**
+   * Text message.
+   */
+  | "Text"
+  /**
+   * Image message.
+   * If the image is an animated GIF, the type `Viewtype.Gif` should be used.
+   */
+  | "Image"
+  /**
+   * Animated GIF message.
+   */
+  | "Gif"
+  /**
+   * Message containing a sticker, similar to image.
+   * If possible, the ui should display the image without borders in a transparent way.
+   * A click on a sticker will offer to install the sticker set in some future.
+   */
+  | "Sticker"
+  /**
+   * Message containing an Audio file.
+   */
+  | "Audio"
+  /**
+   * A voice message that was directly recorded by the user.
+   * For all other audio messages, the type `Viewtype.Audio` should be used.
+   */
+  | "Voice"
+  /**
+   * Video messages.
+   */
+  | "Video"
+  /**
+   * Message containing any file, eg. a PDF.
+   */
+  | "File"
+  /**
+   * Message is an invitation to a videochat.
+   */
+  | "VideochatInvitation"
+  /**
+   * Message is an webxdc instance.
+   */
+  | "Webxdc";
+export type I32 = number;
+export type U64 = number;
+export type Message = {
+  id: U32;
+  chatId: U32;
+  fromId: U32;
+  quotedText: string | null;
+  quotedMessageId: U32 | null;
+  text: string | null;
+  hasLocation: boolean;
+  hasHtml: boolean;
+  viewType: Viewtype;
+  state: U32;
+  timestamp: I64;
+  sortTimestamp: I64;
+  receivedTimestamp: I64;
+  hasDeviatingTimestamp: boolean;
+  subject: string;
+  showPadlock: boolean;
+  isSetupmessage: boolean;
+  isInfo: boolean;
+  isForwarded: boolean;
+  duration: I32;
+  dimensionsHeight: I32;
+  dimensionsWidth: I32;
+  videochatType: U32 | null;
+  videochatUrl: string | null;
+  overrideSenderName: string | null;
+  sender: Contact;
+  setupCodeBegin: string | null;
+  file: string | null;
+  fileMime: string | null;
+  fileBytes: U64;
+  fileName: string | null;
+};
+export type WebxdcMessageInfo = {
+  /**
+   * The name of the app.
+   *
+   * Defaults to the filename if not set in the manifest.
+   */
+  name: string;
+  /**
+   * App icon file name.
+   * Defaults to an standard icon if nothing is set in the manifest.
+   *
+   * To get the file, use dc_msg_get_webxdc_blob(). (not yet in jsonrpc, use rust api or cffi for it)
+   *
+   * App icons should should be square,
+   * the implementations will add round corners etc. as needed.
+   */
+  icon: string;
+  /**
+   * if the Webxdc represents a document, then this is the name of the document
+   */
+  document: string | null;
+  /**
+   * short string describing the state of the app,
+   * sth. as "2 votes", "Highscore: 123",
+   * can be changed by the apps
+   */
+  summary: string | null;
+  /**
+   * URL where the source code of the Webxdc and other information can be found;
+   * defaults to an empty string.
+   * Implementations may offer an menu or a button to open this URL.
+   */
+  sourceCodeUrl: string | null;
+};
+export type __AllTyps = [
+  string,
+  boolean,
+  Record<string, string>,
+  U32,
+  U32,
+  null,
+  U32[],
+  U32,
+  null,
+  U32 | null,
+  Account[],
+  U32,
+  Account,
+  U32,
+  string,
+  ProviderInfo | null,
+  U32,
+  boolean,
+  U32,
+  Record<string, string>,
+  U32,
+  string,
+  string | null,
+  null,
+  U32,
+  Record<string, string | null>,
+  null,
+  U32,
+  string,
+  null,
+  U32,
+  string,
+  Qr,
+  U32,
+  string,
+  string | null,
+  U32,
+  string[],
+  Record<string, string | null>,
+  U32,
+  null,
+  U32,
+  null,
+  U32,
+  U32[],
+  U32,
+  U32,
+  Usize,
+  U32,
+  string,
+  U32,
+  U32,
+  string,
+  null,
+  U32,
+  U32 | null,
+  string | null,
+  U32 | null,
+  ChatListEntry[],
+  U32,
+  ChatListEntry[],
+  Record<U32, ChatListItemFetchResult>,
+  U32,
+  U32,
+  FullChat,
+  U32,
+  U32,
+  null,
+  U32,
+  U32,
+  null,
+  U32,
+  string,
+  string,
+  U32,
+  U32,
+  U32,
+  U32,
+  U32[],
+  U32,
+  U32,
+  Message,
+  U32,
+  U32[],
+  Record<U32, Message>,
+  U32,
+  U32,
+  Contact,
+  U32,
+  string,
+  string | null,
+  U32,
+  U32,
+  U32,
+  U32,
+  U32,
+  U32,
+  null,
+  U32,
+  U32,
+  null,
+  U32,
+  Contact[],
+  U32,
+  U32,
+  string | null,
+  U32[],
+  U32,
+  U32,
+  string | null,
+  Contact[],
+  U32,
+  U32[],
+  Record<U32, Contact>,
+  U32,
+  U32,
+  Viewtype,
+  Viewtype | null,
+  Viewtype | null,
+  U32[],
+  U32,
+  U32,
+  string,
+  string,
+  null,
+  U32,
+  U32,
+  U32,
+  string,
+  U32,
+  U32,
+  WebxdcMessageInfo,
+  U32,
+  string,
+  U32,
+  U32
+];