diff --git a/src/api.ml b/src/api.ml
index 96c11e50..0f245fff 100644
--- a/src/api.ml
+++ b/src/api.ml
@@ -1,6 +1,6 @@
 (* TODO
-   option:
-     - correct use opt_mem or Jsont.option
+   payto_uri
+   option: correct use opt_mem or Jsont.option
    number
      - number is "float", but we probably want int everywhere instead
      - numeric values capped at 2^53 -1 inclusive because json
@@ -1131,3 +1131,50 @@ module AccountRestriction = struct
     |> case_mem "type" Jsont.string ~enc:Fun.id ~enc_case cases
     |> finish
 end
+
+module ExchangeWireAccount = struct
+  type t = {
+    payto_uri: string;
+    conversion_url: string option;
+    credit_restrictions: AccountRestriction.t list;
+    debit_restrictions: AccountRestriction.t list;
+    master_sig: MasterWireDetailsPS.t;
+    bank_label: string option;
+    priority: int option;
+  }
+
+  let jsont =
+    let make payto_uri conversion_url credit_restrictions debit_restrictions
+        master_sig bank_label priority =
+      {
+        payto_uri;
+        conversion_url;
+        credit_restrictions;
+        debit_restrictions;
+        master_sig;
+        bank_label;
+        priority;
+      }
+    in
+    let payto_uri v = v.payto_uri in
+    let conversion_url v = v.conversion_url in
+    let credit_restrictions v = v.credit_restrictions in
+    let debit_restrictions v = v.debit_restrictions in
+    let master_sig v = v.master_sig in
+    let bank_label v = v.bank_label in
+    let priority v = v.priority in
+    let open Jsont.Object in
+    map ~kind:"ExchangeWireAccount" make
+    |> mem "payto_uri" Jsont.string ~enc:payto_uri
+    |> opt_mem "conversion_url" Jsont.string ~enc:conversion_url
+    |> mem "credit_restrictions"
+         (Jsont.list AccountRestriction.jsont)
+         ~enc:credit_restrictions
+    |> mem "debit_restrictions"
+         (Jsont.list AccountRestriction.jsont)
+         ~enc:debit_restrictions
+    |> mem "master_sig" MasterWireDetailsPS.jsont ~enc:master_sig
+    |> opt_mem "bank_label" Jsont.string ~enc:bank_label
+    |> opt_mem "priority" Jsont.int ~enc:priority
+    |> finish
+end