diff --git a/api/schemas.py b/api/schemas.py
index 8163799..60035fe 100644
--- a/api/schemas.py
+++ b/api/schemas.py
@@ -51,6 +51,7 @@ class Account(Schema):
     statuses_count: int
     followers_count: int
     following_count: int
+    source: dict | None
 
 
 class MediaAttachment(Schema):
diff --git a/api/views/accounts.py b/api/views/accounts.py
index a49bed2..b401ddd 100644
--- a/api/views/accounts.py
+++ b/api/views/accounts.py
@@ -1,12 +1,15 @@
-from django.http import HttpRequest, HttpResponse
+from django.http import HttpRequest, HttpResponse, QueryDict
+from django.http.multipartparser import MultiPartParser
 from django.shortcuts import get_object_or_404
 from ninja import Field, Schema
 
+from activities.models import Post
 from activities.services import SearchService
 from api import schemas
 from api.decorators import identity_required
 from api.pagination import MastodonPaginator
 from api.views.base import api_router
+from core.models import Config
 from users.models import Identity
 from users.services import IdentityService
 from users.shortcuts import by_handle_or_404
@@ -15,7 +18,62 @@ from users.shortcuts import by_handle_or_404
 @api_router.get("/v1/accounts/verify_credentials", response=schemas.Account)
 @identity_required
 def verify_credentials(request):
-    return request.identity.to_mastodon_json()
+    return request.identity.to_mastodon_json(source=True)
+
+
+@api_router.patch("/v1/accounts/update_credentials", response=schemas.Account)
+@identity_required
+def update_credentials(
+    request,
+):
+    # Django won't load POST and FILES for patch methods, so we do it.
+    if request.content_type == "multipart/form-data":
+        POST, FILES = MultiPartParser(
+            request.META, request, request.upload_handlers, request.encoding
+        ).parse()
+    elif request.content_type == "application/x-www-form-urlencoded":
+        POST = QueryDict(request.body, encoding=request._encoding)
+        FILES = {}
+    else:
+        return HttpResponse(status=400)
+    identity = request.identity
+    service = IdentityService(identity)
+    if "display_name" in POST:
+        identity.name = POST["display_name"]
+    if "note" in POST:
+        service.set_summary(POST["note"])
+    if "discoverable" in POST:
+        identity.discoverable = POST["discoverable"] == "checked"
+    if "source[privacy]" in POST:
+        privacy_map = {
+            "public": Post.Visibilities.public,
+            "unlisted": Post.Visibilities.unlisted,
+            "private": Post.Visibilities.followers,
+            "direct": Post.Visibilities.mentioned,
+        }
+        Config.set_identity(
+            identity,
+            "default_post_visibility",
+            privacy_map[POST["source[privacy]"]],
+        )
+    if "fields_attributes[0][name]" in POST:
+        identity.metadata = []
+        for i in range(4):
+            name_name = f"fields_attributes[{i}][name]"
+            value_name = f"fields_attributes[{i}][value]"
+            if name_name and value_name in POST:
+                # Empty value means delete this item
+                if not POST[value_name]:
+                    break
+                identity.metadata.append(
+                    {"name": POST[name_name], "value": POST[value_name]}
+                )
+    if "avatar" in FILES:
+        service.set_icon(FILES["avatar"])
+    if "header" in FILES:
+        service.set_image(FILES["header"])
+    identity.save()
+    return identity.to_mastodon_json(source=True)
 
 
 @api_router.get("/v1/accounts/relationships", response=list[schemas.Relationship])
diff --git a/templates/identity/_view_menu.html b/templates/identity/_view_menu.html
index a88ff7e..a43a7bc 100644
--- a/templates/identity/_view_menu.html
+++ b/templates/identity/_view_menu.html
@@ -2,7 +2,7 @@
     <div class="actions" role="menubar">
         {% if request.identity == identity %}
             <a href="{% url "settings_profile" %}" class="button" title="Edit Profile">
-                <i class="fa-solid fa-user-edit"></i>
+                <i class="fa-solid fa-user-edit"></i> Edit
             </a>
         {% elif not inbound_block %}
             {% if inbound_follow or outbound_mute %}
diff --git a/users/models/identity.py b/users/models/identity.py
index d38dbaf..4e41949 100644
--- a/users/models/identity.py
+++ b/users/models/identity.py
@@ -13,7 +13,7 @@ from django.utils.functional import lazy
 from lxml import etree
 
 from core.exceptions import ActorMismatchError
-from core.html import ContentRenderer, strip_html
+from core.html import ContentRenderer, html_to_plaintext, strip_html
 from core.ld import (
     canonicalise,
     format_ld_date,
@@ -830,8 +830,8 @@ class Identity(StatorModel):
             "acct": self.handle or "",
         }
 
-    def to_mastodon_json(self, include_counts=True):
-        from activities.models import Emoji
+    def to_mastodon_json(self, source=False, include_counts=True):
+        from activities.models import Emoji, Post
 
         header_image = self.local_image_url()
         missing = StaticAbsoluteUrl("img/missing.png").absolute
@@ -843,7 +843,7 @@ class Identity(StatorModel):
             f"{self.name} {self.summary} {metadata_value_text}", self.domain
         )
         renderer = ContentRenderer(local=False)
-        return {
+        result = {
             "id": self.pk,
             "username": self.username or "",
             "acct": self.handle,
@@ -881,6 +881,25 @@ class Identity(StatorModel):
             "followers_count": self.inbound_follows.count() if include_counts else 0,
             "following_count": self.outbound_follows.count() if include_counts else 0,
         }
+        if source:
+            privacy_map = {
+                Post.Visibilities.public: "public",
+                Post.Visibilities.unlisted: "unlisted",
+                Post.Visibilities.local_only: "unlisted",
+                Post.Visibilities.followers: "private",
+                Post.Visibilities.mentioned: "direct",
+            }
+            result["source"] = {
+                "note": html_to_plaintext(self.summary),
+                "fields": result["fields"],
+                "privacy": privacy_map[
+                    Config.load_identity(self).default_post_visibility
+                ],
+                "sensitive": False,
+                "language": "unk",
+                "follow_requests_count": 0,
+            }
+        return result
 
     ### Cryptography ###
 
diff --git a/users/services/identity.py b/users/services/identity.py
index a6e44b1..3016165 100644
--- a/users/services/identity.py
+++ b/users/services/identity.py
@@ -2,6 +2,7 @@ from django.db import models
 from django.template.defaultfilters import linebreaks_filter
 
 from activities.models import FanOut
+from core.files import resize_image
 from core.html import strip_html
 from users.models import (
     Block,
@@ -185,3 +186,21 @@ class IdentityService:
         else:
             self.identity.summary = None
         self.identity.save()
+
+    def set_icon(self, file):
+        """
+        Sets the user's avatar image
+        """
+        self.identity.icon.save(
+            file.name,
+            resize_image(file, size=(400, 400)),
+        )
+
+    def set_image(self, file):
+        """
+        Sets the user's header image
+        """
+        self.identity.image.save(
+            file.name,
+            resize_image(file, size=(1500, 500)),
+        )
diff --git a/users/views/settings/profile.py b/users/views/settings/profile.py
index 9e4739a..7a2e957 100644
--- a/users/views/settings/profile.py
+++ b/users/views/settings/profile.py
@@ -4,7 +4,6 @@ from django.shortcuts import redirect
 from django.utils.decorators import method_decorator
 from django.views.generic import FormView
 
-from core.files import resize_image
 from core.html import html_to_plaintext
 from core.models.config import Config
 from users.decorators import identity_required
@@ -77,22 +76,17 @@ class ProfilePage(FormView):
     def form_valid(self, form):
         # Update basic info
         identity = self.request.identity
+        service = IdentityService(identity)
         identity.name = form.cleaned_data["name"]
         identity.discoverable = form.cleaned_data["discoverable"]
-        IdentityService(identity).set_summary(form.cleaned_data["summary"])
+        service.set_summary(form.cleaned_data["summary"])
         # Resize images
         icon = form.cleaned_data.get("icon")
         image = form.cleaned_data.get("image")
         if isinstance(icon, File):
-            identity.icon.save(
-                icon.name,
-                resize_image(icon, size=(400, 400)),
-            )
+            service.set_icon(icon)
         if isinstance(image, File):
-            identity.image.save(
-                image.name,
-                resize_image(image, size=(1500, 500)),
-            )
+            service.set_image(image)
         identity.metadata = form.cleaned_data.get("metadata")
 
         # Clear images if specified