diff --git a/docs/changelog/compatibility-guide.mdx b/docs/changelog/compatibility-guide.mdx
index 33e01f7f..719ea184 100644
--- a/docs/changelog/compatibility-guide.mdx
+++ b/docs/changelog/compatibility-guide.mdx
@@ -4,27 +4,23 @@ description: "Compatibility guide for Honcho's SDKs and API"
 icon: "shield-check"
 ---
 
-This guide helps you understand which versions of Honcho's API are compatible with which SDK versions.
+This guide helps you match the right SDK version to your Honcho API version. Newer SDK patch versions are always backward-compatible within the same major version — install the latest patch for your range.
 
-## Version Compatibility
-
-### Honcho API v3.0.2 (Current)
+## Current Versions
 
 <CardGroup cols={2}>
   <Card title="TypeScript SDK" icon="js">
-    **Compatible Version:** v2.0.0
+    **Latest:** v2.0.1
 
-    Install with:
     ```bash
-    npm install @honcho-ai/sdk@2.0.0
+    npm install @honcho-ai/sdk
     ```
   </Card>
   <Card title="Python SDK" icon="python">
-    **Compatible Version:** v2.0.0
+    **Latest:** v2.0.1
 
-    Install with:
     ```bash
-    pip install honcho-ai==2.0.0
+    pip install honcho-ai
     ```
   </Card>
 </CardGroup>
@@ -34,9 +30,9 @@ This guide helps you understand which versions of Honcho's API are compatible wi
 
 | Honcho API Version | TypeScript SDK | Python SDK |
 |-------------------|---------------|------------|
-| v3.0.2 (Current) | v2.0.0 | v2.0.0 |
-| v3.0.1 | v2.0.0 | v2.0.0 |
-| v3.0.0 | v2.0.0 | v2.0.0 |
+| v3.0.2 (Current) | v2.0.0+ | v2.0.0+ |
+| v3.0.1 | v2.0.0+ | v2.0.0+ |
+| v3.0.0 | v2.0.0+ | v2.0.0+ |
 | v2.5.1 | v1.6.0 | v1.6.0 |
 | v2.5.0 | v1.6.0 | v1.6.0 |
 | v2.4.3 | v1.5.0 | v1.5.0 |
diff --git a/sdks/python/pyproject.toml b/sdks/python/pyproject.toml
index 20204d04..dd389d96 100644
--- a/sdks/python/pyproject.toml
+++ b/sdks/python/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "honcho-ai"
-version = "2.0.0"
+version = "2.0.1"
 description = "Official DX Optimized Python SDK for Honcho"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/sdks/python/src/honcho/__init__.py b/sdks/python/src/honcho/__init__.py
index cf8d8bb5..35f42dce 100644
--- a/sdks/python/src/honcho/__init__.py
+++ b/sdks/python/src/honcho/__init__.py
@@ -66,7 +66,7 @@ from .types import (
     DialecticStreamResponse,
 )
 
-__version__ = "2.0.0"
+__version__ = "2.0.1"
 __author__ = "Plastic Labs"
 __email__ = "hello@plasticlabs.ai"
 
diff --git a/sdks/python/src/honcho/aio.py b/sdks/python/src/honcho/aio.py
index 1d72946a..2d02418e 100644
--- a/sdks/python/src/honcho/aio.py
+++ b/sdks/python/src/honcho/aio.py
@@ -604,6 +604,25 @@ class PeerAio(AsyncMetadataConfigMixin):
         response = PeerCardResponse.model_validate(data)
         return response.peer_card
 
+    @validate_call(config=ConfigDict(arbitrary_types_allowed=True))
+    async def set_card(
+        self,
+        peer_card: list[str],
+        target: str | PeerBase | None = None,
+    ) -> list[str] | None:
+        """Set the peer card asynchronously."""
+        await self._peer._honcho._ensure_workspace_async()
+        target_id = resolve_id(target)
+
+        query = {"target": target_id} if target_id else None
+        data = await self._peer._honcho._async_http_client.put(
+            routes.peer_card(self._peer.workspace_id, self._peer.id),
+            body={"peer_card": peer_card},
+            query=query,
+        )
+        response = PeerCardResponse.model_validate(data)
+        return response.peer_card
+
     @validate_call(config=ConfigDict(arbitrary_types_allowed=True))
     async def representation(
         self,
diff --git a/sdks/python/src/honcho/peer.py b/sdks/python/src/honcho/peer.py
index ea71fc79..f53542c1 100644
--- a/sdks/python/src/honcho/peer.py
+++ b/sdks/python/src/honcho/peer.py
@@ -476,6 +476,38 @@ class Peer(PeerBase, MetadataConfigMixin):
 
         return response.peer_card
 
+    @validate_call(config=ConfigDict(arbitrary_types_allowed=True))
+    def set_card(
+        self,
+        peer_card: list[str],
+        target: str | PeerBase | None = None,
+    ) -> list[str] | None:
+        """
+        Set the peer card for this peer.
+
+        Makes an API call to set the peer card. If a target is provided, sets this
+        peer's local card of the target peer.
+
+        Args:
+            peer_card: A list of strings to set as the peer card.
+            target: Optional target peer for local card. If provided, sets this
+                    peer's card of the target peer. Can be a Peer object or peer ID string.
+
+        Returns:
+            A list of strings representing the updated peer card, or None if none is available
+        """
+        self._honcho._ensure_workspace()
+        target_id = resolve_id(target)
+
+        query = {"target": target_id} if target_id else None
+        data = self._honcho._http.put(
+            routes.peer_card(self.workspace_id, self.id),
+            body={"peer_card": peer_card},
+            query=query,
+        )
+        response = PeerCardResponse.model_validate(data)
+        return response.peer_card
+
     @validate_call(config=ConfigDict(arbitrary_types_allowed=True))
     def representation(
         self,
diff --git a/sdks/typescript/__tests__/peer.test.ts b/sdks/typescript/__tests__/peer.test.ts
index 9a3b3b61..35f0b32e 100644
--- a/sdks/typescript/__tests__/peer.test.ts
+++ b/sdks/typescript/__tests__/peer.test.ts
@@ -430,6 +430,48 @@ describe('Peer', () => {
     })
   })
 
+  // ===========================================================================
+  // Set Peer Card (PUT /peers/:id/card)
+  // ===========================================================================
+
+  describe('PUT /peers/:id/card', () => {
+    test('setCard sets and returns peer card', async () => {
+      const peer = await client.peer('setcard-peer')
+
+      const cardData = ['fact one', 'fact two']
+      const result = await peer.setCard(cardData)
+
+      expect(result).toEqual(cardData)
+
+      // Verify with get
+      const card = await peer.card()
+      expect(card).toEqual(cardData)
+    })
+
+    test('setCard with target peer', async () => {
+      const observer = await client.peer('setcard-observer')
+      const observed = await client.peer('setcard-observed')
+
+      const cardData = ['target likes TypeScript', 'target is clever']
+      const result = await observer.setCard(cardData, observed)
+
+      expect(result).toEqual(cardData)
+
+      // Verify with get
+      const card = await observer.card(observed)
+      expect(card).toEqual(cardData)
+    })
+
+    test('setCard with target ID string', async () => {
+      const peer = await client.peer('setcard-string-peer')
+
+      const cardData = ['some fact']
+      const result = await peer.setCard(cardData, 'setcard-string-target')
+
+      expect(result).toEqual(cardData)
+    })
+  })
+
   // ===========================================================================
   // Peer Context (POST /peers/:id/context)
   // ===========================================================================
diff --git a/sdks/typescript/package.json b/sdks/typescript/package.json
index 956066ed..618a0acf 100644
--- a/sdks/typescript/package.json
+++ b/sdks/typescript/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@honcho-ai/sdk",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "Official DX Optimized TypeScript SDK for Honcho",
   "author": "Plastic Labs <hello@plasticlabs.ai>",
   "license": "Apache-2.0",
diff --git a/sdks/typescript/src/peer.ts b/sdks/typescript/src/peer.ts
index 2ce07468..9d81453b 100644
--- a/sdks/typescript/src/peer.ts
+++ b/sdks/typescript/src/peer.ts
@@ -295,6 +295,18 @@ export class Peer {
     )
   }
 
+  private async _setCard(params: {
+    peer_card: string[]
+    target?: string
+  }): Promise<PeerCardResponse> {
+    await this._ensureWorkspace()
+    const { peer_card, ...query } = params
+    return this._http.put<PeerCardResponse>(
+      `/${API_VERSION}/workspaces/${this.workspaceId}/peers/${this.id}/card`,
+      { body: { peer_card }, query }
+    )
+  }
+
   // ===========================================================================
   // Public Methods
   // ===========================================================================
@@ -662,6 +674,30 @@ export class Peer {
     return response.peer_card
   }
 
+  /**
+   * Set the peer card for this peer.
+   *
+   * Makes an API call to set the peer card. If a target is provided, sets this
+   * peer's local card of the target peer.
+   *
+   * @param peerCard - An array of strings to set as the peer card.
+   * @param target - Optional target peer for local card. If provided, sets this
+   *                 peer's card of the target peer. Can be a Peer object or peer ID string.
+   * @returns Promise resolving to an array of strings containing the updated peer card items,
+   *          or null if no peer card exists
+   */
+  async setCard(
+    peerCard: string[],
+    target?: string | Peer
+  ): Promise<string[] | null> {
+    const validatedTarget = CardTargetSchema.parse(target)
+    const response = await this._setCard({
+      peer_card: peerCard,
+      target: validatedTarget,
+    })
+    return response.peer_card
+  }
+
   /**
    * Get a subset of Honcho's Representation of a peer.
    *
diff --git a/tests/routes/test_peers.py b/tests/routes/test_peers.py
index 84f23887..c8047f02 100644
--- a/tests/routes/test_peers.py
+++ b/tests/routes/test_peers.py
@@ -909,3 +909,52 @@ async def test_get_peer_card_with_data(
     assert response.status_code == 200
     data = response.json()
     assert data["peer_card"] == target_card_content
+
+
+def test_set_peer_card(client: TestClient, sample_data: tuple[Workspace, Peer]):
+    """Test setting peer cards via the PUT endpoint."""
+    test_workspace, observer_peer = sample_data
+
+    # Create a target peer
+    target_peer_name = str(generate_nanoid())
+    response = client.post(
+        f"/v3/workspaces/{test_workspace.name}/peers",
+        json={"name": target_peer_name},
+    )
+    assert response.status_code in [200, 201]
+
+    # Set the observer's own card
+    self_card = ["I am a test peer", "I like writing tests"]
+    response = client.put(
+        f"/v3/workspaces/{test_workspace.name}/peers/{observer_peer.name}/card",
+        json={"peer_card": self_card},
+    )
+    assert response.status_code == 200
+    data = response.json()
+    assert data["peer_card"] == self_card
+
+    # Verify with GET
+    response = client.get(
+        f"/v3/workspaces/{test_workspace.name}/peers/{observer_peer.name}/card"
+    )
+    assert response.status_code == 200
+    assert response.json()["peer_card"] == self_card
+
+    # Set a card for the target peer
+    target_card = ["Target is helpful", "Target knows Python"]
+    response = client.put(
+        f"/v3/workspaces/{test_workspace.name}/peers/{observer_peer.name}/card",
+        params={"target": target_peer_name},
+        json={"peer_card": target_card},
+    )
+    assert response.status_code == 200
+    data = response.json()
+    assert data["peer_card"] == target_card
+
+    # Verify with GET
+    response = client.get(
+        f"/v3/workspaces/{test_workspace.name}/peers/{observer_peer.name}/card",
+        params={"target": target_peer_name},
+    )
+    assert response.status_code == 200
+    assert response.json()["peer_card"] == target_card
diff --git a/tests/sdk/sdk_integration_test.py b/tests/sdk/sdk_integration_test.py
index f5a14fe8..cffe6b1c 100644
--- a/tests/sdk/sdk_integration_test.py
+++ b/tests/sdk/sdk_integration_test.py
@@ -104,3 +104,37 @@ def test_message_and_chat_operations(honcho_test_client: Honcho):
 
     # This is a mock response from the agent
     _response = user.chat("What did I ask about?")
+
+
+def test_peer_card_operations(honcho_test_client: Honcho):
+    """
+    Tests setting and getting peer cards.
+    """
+    peer = honcho_test_client.peer(id="card-test-peer")
+    target = honcho_test_client.peer(id="card-test-target")
+
+    # Initially card should be None
+    card = peer.card()
+    assert card is None
+
+    # Set own card
+    own_card = ["I am a helpful assistant", "I enjoy learning"]
+    result = peer.set_card(own_card)
+    assert result == own_card
+
+    # Verify with get
+    card = peer.card()
+    assert card == own_card
+
+    # Set card for target
+    target_card = ["Target likes Python", "Target is friendly"]
+    result = peer.set_card(target_card, target=target)
+    assert result == target_card
+
+    # Verify with get
+    card = peer.card(target=target)
+    assert card == target_card
+
+    # Own card should still be unchanged
+    card = peer.card()
+    assert card == own_card
diff --git a/uv.lock b/uv.lock
index 634827d0..6af5c365 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1136,7 +1136,7 @@ dev = [
 
 [[package]]
 name = "honcho-ai"
-version = "2.0.0"
+version = "2.0.1"
 source = { editable = "sdks/python" }
 dependencies = [
     { name = "httpx" },