diff --git a/apps/api/src/modules/pricing/routes/admin-pricing-routes.js b/apps/api/src/modules/pricing/routes/admin-pricing-routes.js
index fb29e76..0d4f889 100644
--- a/apps/api/src/modules/pricing/routes/admin-pricing-routes.js
+++ b/apps/api/src/modules/pricing/routes/admin-pricing-routes.js
@@ -36,6 +36,7 @@ export async function registerAdminPricingRoutes(app, options) {
   });
 
   app.post('/inventory/:id/valuation', async (request, reply) => {
+    await authorizeUnsafeRequest?.(request.cookies[sessionCookieName], request.headers['x-csrf-token']);
     const valuation = await pricingService.calculate({ sellerId: request.admin.sellerId, inventoryItemId: request.params.id });
     return reply.code(200).send({ data: toAdminMarketValuationDto(valuation) });
   });
diff --git a/apps/api/tests/http/pricing-routes.test.js b/apps/api/tests/http/pricing-routes.test.js
index 4ff6712..9057c3d 100644
--- a/apps/api/tests/http/pricing-routes.test.js
+++ b/apps/api/tests/http/pricing-routes.test.js
@@ -24,5 +24,5 @@ test('accepts a protected pricing observation and valuation request', async (tes
   assert.equal(observationResponse.statusCode, 201);
   assert.equal(valuationResponse.statusCode, 200);
   assert.equal(valuationResponse.json().data.valueMinor, 2500);
-  assert.equal(csrfChecks, 1);
+  assert.equal(csrfChecks, 2);
 });
\ No newline at end of file
diff --git a/apps/web/src/pages/AdminHomePage.vue b/apps/web/src/pages/AdminHomePage.vue
index ffbc4a3..e625f47 100644
--- a/apps/web/src/pages/AdminHomePage.vue
+++ b/apps/web/src/pages/AdminHomePage.vue
@@ -9,6 +9,7 @@ import { createAdminListing, listAdminListings, markListingPending, publishAdmin
 import { createAdminSale, listAdminSales, voidAdminSale } from '@/services/admin-sale-service.js';
 import { createAdminAcquisition, listAdminAcquisitions } from '@/services/admin-acquisition-service.js';
 import { getAdminDashboard } from '@/services/admin-dashboard-service.js';
+import { addAdminPricingObservation, calculateAdminValuation } from '@/services/admin-pricing-service.js';
 
 const { principal } = useAuth();
 const products = ref([]);
@@ -17,6 +18,7 @@ const listings = ref([]);
 const sales = ref([]);
 const acquisitions = ref([]);
 const dashboard = ref(null);
+const valuations = ref({});
 const categories = ref([]);
 const conditions = ref([]);
 const isLoading = ref(true);
@@ -38,6 +40,10 @@ const acquisitionCost = ref('');
 const acquisitionShipping = ref('');
 const acquisitionTax = ref('');
 const acquisitionDate = ref(new Date().toISOString().slice(0, 10));
+const pricingInventoryId = ref('');
+const pricingProvider = ref('manual');
+const pricingSource = ref('');
+const pricingPrice = ref('');
 const voidReasons = ref({});
 
 function csrfToken() {
@@ -132,6 +138,19 @@ async function recordAcquisition() {
   finally { isSaving.value = false; }
 }
 
+async function calculatePricing() {
+  isSaving.value = true;
+  try {
+    const item = inventory.value.find(({ id }) => id === pricingInventoryId.value);
+    await addAdminPricingObservation({ productId: item.productId, inventoryItemId: item.id, providerId: pricingProvider.value, priceMinor: Number(pricingPrice.value), sourceIdentifier: pricingSource.value, conditionId: item.conditionId }, csrfToken());
+    const valuation = await calculateAdminValuation(item.id, csrfToken());
+    valuations.value = { ...valuations.value, [item.id]: valuation };
+    pricingSource.value = '';
+    pricingPrice.value = '';
+  } catch (requestError) { error.value = requestError; }
+  finally { isSaving.value = false; }
+}
+
 async function voidSale(saleId) {
   isSaving.value = true;
   try {
@@ -241,6 +260,21 @@ onMounted(load);
         <input id="acquisition-tax" v-model="acquisitionTax" class="fixture-input" type="number" min="0" />
         <button class="button button--primary" type="submit" :disabled="isSaving">Record acquisition</button>
       </form>
+      <form class="showcase-panel" @submit.prevent="calculatePricing">
+        <h2>Calculate market value</h2>
+        <label class="fixture-label" for="pricing-inventory">Inventory copy</label>
+        <select id="pricing-inventory" v-model="pricingInventoryId" class="fixture-input" required>
+          <option value="" disabled>Select a copy</option>
+          <option v-for="item in inventory" :key="item.id" :value="item.id">{{ item.id }}</option>
+        </select>
+        <label class="fixture-label" for="pricing-provider">Provider</label>
+        <input id="pricing-provider" v-model="pricingProvider" class="fixture-input" required />
+        <label class="fixture-label" for="pricing-source">Source identifier</label>
+        <input id="pricing-source" v-model="pricingSource" class="fixture-input" required />
+        <label class="fixture-label" for="pricing-price">Observed price (cents)</label>
+        <input id="pricing-price" v-model="pricingPrice" class="fixture-input" type="number" min="1" required />
+        <button class="button button--primary" type="submit" :disabled="isSaving">Add observation and calculate</button>
+      </form>
     </div>
 
     <section class="admin-list" aria-labelledby="products-title">
@@ -252,6 +286,9 @@ onMounted(load);
       <h2 id="inventory-title">Physical inventory</h2>
       <p v-if="!inventory.length && !isLoading" class="state state--empty">No physical copies yet.</p>
       <ul v-else><li v-for="item in inventory" :key="item.id" :data-product-id="item.productId"><span>{{ item.id }}</span> · {{ item.status }} <RouterLink :to="{ name: 'admin-image-manager', params: { id: item.id } }">Manage images</RouterLink></li></ul>
+      <ul v-if="Object.keys(valuations).length" aria-label="Market valuations">
+        <li v-for="(valuation, inventoryItemId) in valuations" :key="inventoryItemId">{{ inventoryItemId }} · Market value ${{ (valuation.valueMinor / 100).toFixed(2) }} · {{ valuation.confidence }} confidence · {{ valuation.sourceCount }} source{{ valuation.sourceCount === 1 ? '' : 's' }}</li>
+      </ul>
     </section>
     <section class="admin-list" aria-labelledby="listings-title">
       <h2 id="listings-title">Listings</h2>
diff --git a/apps/web/src/services/admin-pricing-service.js b/apps/web/src/services/admin-pricing-service.js
new file mode 100644
index 0000000..621ebe6
--- /dev/null
+++ b/apps/web/src/services/admin-pricing-service.js
@@ -0,0 +1,27 @@
+const apiBaseUrl = import.meta.env?.VITE_API_BASE_URL ?? '/api/v1';
+
+async function request(path, options = {}) {
+  const response = await fetch(`${apiBaseUrl}${path}`, {
+    credentials: 'include',
+    ...options,
+    headers: { ...(options.body ? { 'content-type': 'application/json' } : {}), ...options.headers },
+  });
+  const payload = await response.json().catch(() => null);
+  if (!response.ok) throw new Error(payload?.error?.message ?? 'Pricing request failed.');
+  return payload?.data;
+}
+
+export function addAdminPricingObservation(input, csrfToken) {
+  return request('/admin/pricing/observations', {
+    method: 'POST',
+    headers: { 'x-csrf-token': csrfToken },
+    body: JSON.stringify(input),
+  });
+}
+
+export function calculateAdminValuation(inventoryItemId, csrfToken) {
+  return request(`/admin/inventory/${encodeURIComponent(inventoryItemId)}/valuation`, {
+    method: 'POST',
+    headers: { 'x-csrf-token': csrfToken },
+  });
+}
diff --git a/apps/web/tests/e2e/admin-catalog-workflow.spec.js b/apps/web/tests/e2e/admin-catalog-workflow.spec.js
index 7f99e3c..6cff0ad 100644
--- a/apps/web/tests/e2e/admin-catalog-workflow.spec.js
+++ b/apps/web/tests/e2e/admin-catalog-workflow.spec.js
@@ -43,6 +43,11 @@ test('signs in and publishes a listing after adding an inventory image', async (
   await page.getByLabel('Tax (cents)').fill('50');
   await page.getByRole('button', { name: 'Record acquisition' }).click();
   await expect(page.locator('section[aria-labelledby="acquisitions-title"] li').first()).toContainText('Basis $11.50');
+  await page.locator('#pricing-inventory').selectOption(createdInventoryId);
+  await page.getByLabel('Source identifier').fill('browser-price-1');
+  await page.getByLabel('Observed price (cents)').fill('2500');
+  await page.getByRole('button', { name: 'Add observation and calculate' }).click();
+  await expect(page.getByRole('list', { name: 'Market valuations' })).toContainText('Market value $25.00');
   await inventoryLink.click();
   await expect(page).toHaveURL(/\/admin\/inventory\/[^/]+\/images$/);
   await expect(page.getByRole('heading', { name: 'Manage images' })).toBeVisible();