diff --git a/src/features/edit-profile/index.tsx b/src/features/edit-profile/index.tsx
index fbcebf02b..03fe961aa 100644
--- a/src/features/edit-profile/index.tsx
+++ b/src/features/edit-profile/index.tsx
@@ -55,6 +55,7 @@ const messages = defineMessages({
   displayNamePlaceholder: { id: 'edit_profile.fields.display_name_placeholder', defaultMessage: 'Name' },
   websitePlaceholder: { id: 'edit_profile.fields.website_placeholder', defaultMessage: 'Display a Link' },
   locationPlaceholder: { id: 'edit_profile.fields.location_placeholder', defaultMessage: 'Location' },
+  nip05Placeholder: { id: 'edit_profile.fields.nip05_placeholder', defaultMessage: 'user@{domain}' },
   cancel: { id: 'common.cancel', defaultMessage: 'Cancel' },
 });
 
@@ -75,6 +76,11 @@ interface AccountCredentialsSource {
   sensitive?: boolean;
   /** Default language to use for authored statuses. (ISO 6391) */
   language?: string;
+  /** Nostr metadata. */
+  nostr?: {
+    /** Nostr NIP-05 identifier. */
+    nip05?: string;
+  };
 }
 
 /**
@@ -120,6 +126,8 @@ interface AccountCredentials {
   location?: string;
   /** User's birthday. */
   birthday?: string;
+  /** Nostr NIP-05 identifier. */
+  nip05?: string;
 }
 
 /** Convert an account into an update_credentials request object. */
@@ -142,6 +150,7 @@ const accountToCredentials = (account: Account): AccountCredentials => {
     website: account.website,
     location: account.location,
     birthday: account.pleroma?.birthday ?? undefined,
+    nip05: account.source?.nostr?.nip05 ?? '',
   };
 };
 
@@ -308,6 +317,19 @@ const EditProfile: React.FC = () => {
           />
         </FormGroup>
 
+        {features.nip05 && (
+          <FormGroup
+            labelText={<FormattedMessage id='edit_profile.fields.nip05_label' defaultMessage='Username' />}
+          >
+            <Input
+              type='text'
+              value={data.nip05}
+              onChange={handleTextChange('nip05')}
+              placeholder={intl.formatMessage(messages.nip05Placeholder, { domain: location.host })}
+            />
+          </FormGroup>
+        )}
+
         {features.birthdays && (
           <FormGroup
             labelText={<FormattedMessage id='edit_profile.fields.birthday_label' defaultMessage='Birthday' />}
diff --git a/src/locales/en.json b/src/locales/en.json
index 6739b3bc7..3bf3aab9b 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -592,6 +592,8 @@
   "edit_profile.fields.meta_fields.content_placeholder": "Content",
   "edit_profile.fields.meta_fields.label_placeholder": "Label",
   "edit_profile.fields.meta_fields_label": "Profile fields",
+  "edit_profile.fields.nip05_label": "Username",
+  "edit_profile.fields.nip05_placeholder": "user@{domain}",
   "edit_profile.fields.stranger_notifications_label": "Block notifications from strangers",
   "edit_profile.fields.website_label": "Website",
   "edit_profile.fields.website_placeholder": "Display a Link",
diff --git a/src/schemas/account.ts b/src/schemas/account.ts
index 725cffefa..6065e6cc5 100644
--- a/src/schemas/account.ts
+++ b/src/schemas/account.ts
@@ -94,6 +94,9 @@ const baseAccountSchema = z.object({
       discoverable: z.boolean().catch(true),
     }).optional().catch(undefined),
     sms_verified: z.boolean().catch(false),
+    nostr: z.object({
+      nip05: z.string().optional().catch(undefined),
+    }).optional().catch(undefined),
   }).optional().catch(undefined),
   statuses_count: z.number().catch(0),
   suspended: z.boolean().catch(false),
diff --git a/src/utils/features.ts b/src/utils/features.ts
index 66aa66854..60c354378 100644
--- a/src/utils/features.ts
+++ b/src/utils/features.ts
@@ -722,6 +722,12 @@ const getInstanceFeatures = (instance: Instance) => {
       v.software === TAKAHE,
     ]),
 
+    /**
+     * Can set a Nostr username.
+     * @see PATCH /api/v1/accounts/update_credentials
+     */
+    nip05: v.software === DITTO,
+
     /**
      * Ability to sign Nostr events over websocket.
      * @see GET /api/v1/streaming?stream=nostr