diff --git a/docs/v3/documentation/reference/sdk.mdx b/docs/v3/documentation/reference/sdk.mdx
index 967f39ff..7016b840 100644
--- a/docs/v3/documentation/reference/sdk.mdx
+++ b/docs/v3/documentation/reference/sdk.mdx
@@ -280,6 +280,12 @@ metadata = alice.get_metadata()
 metadata["location"] = "Paris"
 alice.set_metadata(metadata)
 
+# Peer card management
+card = alice.get_card()                          # Get peer card
+card = alice.get_card(target="bob")              # Get card about another peer
+updated = alice.set_card(["Likes Python", "Lives in NYC"])  # Set peer card
+updated = alice.set_card(["Works at Acme"], target="bob")   # Set card about another peer
+
 # Get peer context (representation + peer card in one call)
 context = alice.context()
 context = alice.context(target="bob")  # What alice knows about bob
@@ -334,6 +340,12 @@ await alice.setMetadata({
   location: "Paris"
 });
 
+// Peer card management
+const card = await alice.getCard();                              // Get peer card
+const targetCard = await alice.getCard("bob");                   // Get card about another peer
+const updated = await alice.setCard(["Likes TypeScript", "Lives in NYC"]);  // Set peer card
+const updatedTarget = await alice.setCard(["Works at Acme"], "bob");        // Set card about another peer
+
 // Get peer context (representation + peer card in one call)
 const context = await alice.context();
 const targetContext = await alice.context({ target: "bob" });  // What alice knows about bob
@@ -396,6 +408,46 @@ const searchedContext = await alice.context({
 ```
 </CodeGroup>
 
+### Peer Card
+
+The peer card contains stable biographical facts about a peer (name, preferences, background). Use `get_card()` / `getCard()` to retrieve it and `set_card()` / `setCard()` to overwrite it:
+
+<CodeGroup>
+```python Python
+# Get peer's own card
+card = alice.get_card()
+print(card)  # ["Likes Python", "Lives in NYC", ...]
+
+# Get card about another peer (local representation)
+bob_card = alice.get_card(target="bob")
+
+# Set peer's own card
+updated = alice.set_card(["Likes Python", "Lives in NYC"])
+
+# Set card about another peer
+updated = alice.set_card(["Works at Acme", "Enjoys hiking"], target="bob")
+```
+
+```typescript TypeScript
+// Get peer's own card
+const card = await alice.getCard();
+console.log(card);  // ["Likes TypeScript", "Lives in NYC", ...]
+
+// Get card about another peer (local representation)
+const bobCard = await alice.getCard("bob");
+
+// Set peer's own card
+const updated = await alice.setCard(["Likes TypeScript", "Lives in NYC"]);
+
+// Set card about another peer
+const updatedBob = await alice.setCard(["Works at Acme", "Enjoys hiking"], "bob");
+```
+</CodeGroup>
+
+<Info>
+Peer cards are automatically maintained by the deriver agent during message processing. Use `set_card()` / `setCard()` when you need to manually override or seed the card — the peer will be created automatically if it doesn't already exist.
+</Info>
+
 ### Conclusions
 
 Peers can access their conclusions (facts derived from messages) through the `conclusions` property and `conclusions_of()` method:
diff --git a/docs/v3/guides/migrations/mem0.mdx b/docs/v3/guides/migrations/mem0.mdx
index 6a2bbd22..1d56bde6 100644
--- a/docs/v3/guides/migrations/mem0.mdx
+++ b/docs/v3/guides/migrations/mem0.mdx
@@ -274,7 +274,7 @@ Additional features with **no Mem0 equivalent**:
 
 | Honcho Method | Description | Use Case |
 |---------------|-------------|----------|
-| `peer.card()` | Stable biographical facts (name, preferences, background) | User profiles, personalization |
+| `peer.get_card()` / `peer.set_card()` | Stable biographical facts (name, preferences, background) | User profiles, personalization |
 | `session.representation(peer)` | Cached psychological analysis (mental state, intentions) | Real-time adaptation |
 | `session.summaries()` | Auto-generated short/long session summaries | Conversation continuity |
 | `SessionPeerConfig` | Configure observation settings (who learns about whom) | Privacy controls, role-based learning |
diff --git a/docs/v3/migrations/from-mem0.mdx b/docs/v3/migrations/from-mem0.mdx
index 6a2bbd22..1d56bde6 100644
--- a/docs/v3/migrations/from-mem0.mdx
+++ b/docs/v3/migrations/from-mem0.mdx
@@ -274,7 +274,7 @@ Additional features with **no Mem0 equivalent**:
 
 | Honcho Method | Description | Use Case |
 |---------------|-------------|----------|
-| `peer.card()` | Stable biographical facts (name, preferences, background) | User profiles, personalization |
+| `peer.get_card()` / `peer.set_card()` | Stable biographical facts (name, preferences, background) | User profiles, personalization |
 | `session.representation(peer)` | Cached psychological analysis (mental state, intentions) | Real-time adaptation |
 | `session.summaries()` | Auto-generated short/long session summaries | Conversation continuity |
 | `SessionPeerConfig` | Configure observation settings (who learns about whom) | Privacy controls, role-based learning |
diff --git a/tests/sdk/test_peer.py b/tests/sdk/test_peer.py
index dae19398..62b3a54f 100644
--- a/tests/sdk/test_peer.py
+++ b/tests/sdk/test_peer.py
@@ -93,7 +93,7 @@ async def test_peer_card_global(client_fixture: tuple[Honcho, str]):
         await session.aio.add_messages([peer.message("I like pizza")])
 
         # Get global peer card
-        card_response = await peer.aio.card()
+        card_response = await peer.aio.get_card()
         assert card_response is None or isinstance(card_response, list)
     else:
         peer = honcho_client.peer(id="test-card-global-peer")
@@ -103,7 +103,7 @@ async def test_peer_card_global(client_fixture: tuple[Honcho, str]):
         session.add_messages([peer.message("I like pizza")])
 
         # Get global peer card
-        card_response = peer.card()
+        card_response = peer.get_card()
         assert card_response is None or isinstance(card_response, list)
 
 
@@ -125,11 +125,11 @@ async def test_peer_card_local(client_fixture: tuple[Honcho, str]):
         )
 
         # Get local peer card with target as Peer object
-        card_response = await observer.aio.card(target=target)
+        card_response = await observer.aio.get_card(target=target)
         assert card_response is None or isinstance(card_response, list)
 
         # Get local peer card with target as string
-        card_response = await observer.aio.card(target=target.id)
+        card_response = await observer.aio.get_card(target=target.id)
         assert card_response is None or isinstance(card_response, list)
     else:
         observer = honcho_client.peer(id="test-card-local-observer")
@@ -140,11 +140,11 @@ async def test_peer_card_local(client_fixture: tuple[Honcho, str]):
         session.add_messages([observer.message("Hello"), target.message("Hi there")])
 
         # Get local peer card with target as Peer object
-        card_response = observer.card(target=target)
+        card_response = observer.get_card(target=target)
         assert card_response is None or isinstance(card_response, list)
 
         # Get local peer card with target as string
-        card_response = observer.card(target=target.id)
+        card_response = observer.get_card(target=target.id)
         assert card_response is None or isinstance(card_response, list)
 
 
@@ -161,13 +161,13 @@ async def test_peer_card_with_empty_target(client_fixture: tuple[Honcho, str]):
         peer = await honcho_client.aio.peer(id="test-card-validation-peer")
 
         # Empty target is treated as no target (same as None)
-        result = await peer.aio.card(target="")
+        result = await peer.aio.get_card(target="")
         assert result is None or isinstance(result, list)
     else:
         peer = honcho_client.peer(id="test-card-validation-peer")
 
         # Empty target is treated as no target (same as None)
-        result = peer.card(target="")
+        result = peer.get_card(target="")
         assert result is None or isinstance(result, list)
 
 
diff --git a/tests/unified/runner.py b/tests/unified/runner.py
index 2168d1c4..0d07d5fe 100644
--- a/tests/unified/runner.py
+++ b/tests/unified/runner.py
@@ -345,7 +345,7 @@ class UnifiedTestExecutor:
                 raise ValueError("peer_id required for get_peer_card")
 
             peer = await self.client.aio.peer(id=step.observer_peer_id)
-            card = await peer.aio.card(
+            card = await peer.aio.get_card(
                 step.observed_peer_id
                 if step.observed_peer_id
                 else step.observer_peer_id