diff --git a/foundry.toml b/foundry.toml
index 13aecee3f..26aaaf67d 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -38,6 +38,16 @@ paths = "src/imports/MetaMorphoImport.sol"
 optimizer_runs = 200
 evm_version = "cancun"
 
+# The registries are deployed on-chain with verified bytecode compiled in the
+# standalone morpho-org/vault-v2-adapter-registries repo (optimizer_runs = 999999).
+# vault-v2's default is 100000, so they need the standalone repo's setting to keep
+# identical bytecode. All other bytecode-relevant settings already match
+# (solc 0.8.28, via_ir, optimizer, cancun, bytecode_hash = "none").
+[[profile.default.compilation_restrictions]]
+paths = "src/periphery/registries/**"
+optimizer_runs = 999999
+evm_version = "cancun"
+
 # For every restriction above there must be some compatible foundry profile.
 # The first matching profile will be used. For clarity, all profiles below should be incompatible with each other.
 
@@ -51,4 +61,9 @@ name = "200-cancun"
 optimizer_runs = 200
 evm_version = "cancun"
 
+[[profile.default.additional_compiler_profiles]]
+name = "999999-cancun"
+optimizer_runs = 999999
+evm_version = "cancun"
+
 # See more config options https://github.com/foundry-rs/foundry/blob/master/crates/config/README.md#all-options
diff --git a/src/periphery/README.md b/src/periphery/README.md
index 2a9d23d61..7d55d8d3e 100644
--- a/src/periphery/README.md
+++ b/src/periphery/README.md
@@ -3,6 +3,7 @@
 Peripheral, non-core contracts that build on top of Vault V2.
 Blue public allocator contracts are in [blue-public-allocator](./blue-public-allocator/).
 Gate contracts are in [gates](./gates/).
+Adapter registry contracts are in [registries](./registries/).
 
 ## Blue Public Allocator
 
@@ -22,3 +23,10 @@ If an account transfers shares to another account, for example into another prot
 `WhitelistSendAssetsGate` is an implementation of the vault's `sendAssetsGate`.
 It restricts who can send assets into the vault on deposits and mints.
 Whitelisted accounts can still deposit assets that originally belong to non-whitelisted accounts, so this gate does not fully restrict whose funds can enter the vault.
+
+## Registries
+
+Adapter registries implement the vault's `IAdapterRegistry` interface (`isInRegistry(address)`) so a vault can validate the adapters it uses.
+`RegistryList` is an owner-controlled, append-only list of sub-registries; an adapter is in the registry if it is in any sub-registry.
+`MorphoMarketV1RegistryV2` validates adapters created by the `MorphoMarketV1AdapterV2Factory`.
+`MorphoVaultV1Registry` validates adapters created by the `MorphoVaultV1AdapterFactory` whose underlying MetaMorpho vault was created by the MetaMorpho factory.
diff --git a/src/periphery/registries/MorphoMarketV1RegistryV2.sol b/src/periphery/registries/MorphoMarketV1RegistryV2.sol
new file mode 100644
index 000000000..4b792bbec
--- /dev/null
+++ b/src/periphery/registries/MorphoMarketV1RegistryV2.sol
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2026 Morpho Association
+pragma solidity 0.8.28;
+
+import {IMorphoMarketV1AdapterV2Factory} from "../../adapters/interfaces/IMorphoMarketV1AdapterV2Factory.sol";
+import {IMorphoMarketV1RegistryV2} from "./interfaces/IMorphoMarketV1RegistryV2.sol";
+
+contract MorphoMarketV1RegistryV2 is IMorphoMarketV1RegistryV2 {
+    address public immutable morphoMarketV1AdapterV2Factory;
+
+    constructor(address _morphoMarketV1AdapterV2Factory) {
+        morphoMarketV1AdapterV2Factory = _morphoMarketV1AdapterV2Factory;
+    }
+
+    function isInRegistry(address adapter) external view returns (bool) {
+        return IMorphoMarketV1AdapterV2Factory(morphoMarketV1AdapterV2Factory).isMorphoMarketV1AdapterV2(adapter);
+    }
+}
diff --git a/src/periphery/registries/MorphoVaultV1Registry.sol b/src/periphery/registries/MorphoVaultV1Registry.sol
new file mode 100644
index 000000000..7c4a249ef
--- /dev/null
+++ b/src/periphery/registries/MorphoVaultV1Registry.sol
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2026 Morpho Association
+pragma solidity 0.8.28;
+
+import {IMetaMorphoFactory} from "../../../lib/metamorpho/src/interfaces/IMetaMorphoFactory.sol";
+import {IMorphoVaultV1AdapterFactory} from "../../adapters/interfaces/IMorphoVaultV1AdapterFactory.sol";
+import {IMorphoVaultV1Adapter} from "../../adapters/interfaces/IMorphoVaultV1Adapter.sol";
+import {IMorphoVaultV1Registry} from "./interfaces/IMorphoVaultV1Registry.sol";
+
+contract MorphoVaultV1Registry is IMorphoVaultV1Registry {
+    address public immutable morphoVaultV1AdapterFactory;
+    address public immutable morphoVaultV1Factory;
+
+    constructor(address _morphoVaultV1AdapterFactory, address _morphoVaultV1Factory) {
+        morphoVaultV1AdapterFactory = _morphoVaultV1AdapterFactory;
+        morphoVaultV1Factory = _morphoVaultV1Factory;
+    }
+
+    function isInRegistry(address adapter) external view returns (bool) {
+        return IMorphoVaultV1AdapterFactory(morphoVaultV1AdapterFactory).isMorphoVaultV1Adapter(adapter)
+            && IMetaMorphoFactory(morphoVaultV1Factory).isMetaMorpho(IMorphoVaultV1Adapter(adapter).morphoVaultV1());
+    }
+}
diff --git a/src/periphery/registries/RegistryList.sol b/src/periphery/registries/RegistryList.sol
new file mode 100644
index 000000000..a4a044001
--- /dev/null
+++ b/src/periphery/registries/RegistryList.sol
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2026 Morpho Association
+pragma solidity 0.8.28;
+
+import {IRegistryList} from "./interfaces/IRegistryList.sol";
+import {IAdapterRegistry} from "../../interfaces/IAdapterRegistry.sol";
+
+contract RegistryList is IRegistryList {
+    address public owner;
+
+    /// @dev Owner controlled append-only list of registries.
+    /// @dev This registry is effectively "add-only" only if all sub-registries are also "add-only".
+    address[] public subRegistries;
+
+    event Constructor(address indexed owner);
+    event SetOwner(address indexed newOwner);
+    event AddSubRegistry(address indexed subRegistry);
+
+    function subRegistriesLength() external view returns (uint256) {
+        return subRegistries.length;
+    }
+
+    constructor() {
+        owner = msg.sender;
+        emit Constructor(msg.sender);
+    }
+
+    function setOwner(address newOwner) external {
+        require(msg.sender == owner, "Not owner");
+        owner = newOwner;
+        emit SetOwner(newOwner);
+    }
+
+    /// @dev Adding a subRegistry that reverts or makes looping too gas consuming will make new registries uneffective
+    /// (vaults will not be able to validate adapters that would be validated by registries that have been added after).
+    function addSubRegistry(address subRegistry) external {
+        require(msg.sender == owner, "Not owner");
+        subRegistries.push(subRegistry);
+        emit AddSubRegistry(subRegistry);
+    }
+
+    function isInRegistry(address adapter) public view returns (bool) {
+        for (uint256 i = 0; i < subRegistries.length; i++) {
+            if (IAdapterRegistry(subRegistries[i]).isInRegistry(adapter)) return true;
+        }
+        return false;
+    }
+}
diff --git a/src/periphery/registries/interfaces/IMorphoMarketV1RegistryV2.sol b/src/periphery/registries/interfaces/IMorphoMarketV1RegistryV2.sol
new file mode 100644
index 000000000..5aaa36952
--- /dev/null
+++ b/src/periphery/registries/interfaces/IMorphoMarketV1RegistryV2.sol
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2026 Morpho Association
+pragma solidity >=0.5.0;
+
+import {IAdapterRegistry} from "../../../interfaces/IAdapterRegistry.sol";
+
+interface IMorphoMarketV1RegistryV2 is IAdapterRegistry {
+    function morphoMarketV1AdapterV2Factory() external view returns (address);
+}
diff --git a/src/periphery/registries/interfaces/IMorphoVaultV1Registry.sol b/src/periphery/registries/interfaces/IMorphoVaultV1Registry.sol
new file mode 100644
index 000000000..b72270732
--- /dev/null
+++ b/src/periphery/registries/interfaces/IMorphoVaultV1Registry.sol
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2026 Morpho Association
+pragma solidity >=0.5.0;
+
+import {IAdapterRegistry} from "../../../interfaces/IAdapterRegistry.sol";
+
+interface IMorphoVaultV1Registry is IAdapterRegistry {
+    function morphoVaultV1AdapterFactory() external view returns (address);
+    function morphoVaultV1Factory() external view returns (address);
+}
diff --git a/src/periphery/registries/interfaces/IRegistryList.sol b/src/periphery/registries/interfaces/IRegistryList.sol
new file mode 100644
index 000000000..db6104af1
--- /dev/null
+++ b/src/periphery/registries/interfaces/IRegistryList.sol
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2026 Morpho Association
+pragma solidity >=0.5.0;
+
+import {IAdapterRegistry} from "../../../interfaces/IAdapterRegistry.sol";
+
+interface IRegistryList is IAdapterRegistry {
+    function owner() external view returns (address);
+    function subRegistries(uint256 index) external view returns (address);
+    function subRegistriesLength() external view returns (uint256);
+    function setOwner(address newOwner) external;
+    function addSubRegistry(address subRegistry) external;
+}
diff --git a/test/periphery/MorphoMarketV1RegistryV2Test.sol b/test/periphery/MorphoMarketV1RegistryV2Test.sol
new file mode 100644
index 000000000..39962f558
--- /dev/null
+++ b/test/periphery/MorphoMarketV1RegistryV2Test.sol
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2026 Morpho Association
+pragma solidity ^0.8.28;
+
+import {Test} from "forge-std/Test.sol";
+import {MorphoMarketV1RegistryV2} from "../../src/periphery/registries/MorphoMarketV1RegistryV2.sol";
+import {IMorphoMarketV1RegistryV2} from "../../src/periphery/registries/interfaces/IMorphoMarketV1RegistryV2.sol";
+
+contract MorphoMarketV1RegistryV2Test is Test {
+    IMorphoMarketV1RegistryV2 registry;
+    address morphoMarketV1AdapterV2Factory = address(0x1001);
+
+    function setUp() public {
+        registry = IMorphoMarketV1RegistryV2(address(new MorphoMarketV1RegistryV2(morphoMarketV1AdapterV2Factory)));
+    }
+
+    function testConstructor() public view {
+        assertEq(registry.morphoMarketV1AdapterV2Factory(), morphoMarketV1AdapterV2Factory);
+    }
+
+    function testIsInRegistry(address adapter, bool isMorphoMarketV1AdapterV2) public {
+        vm.assume(adapter != address(vm));
+        vm.mockCall(
+            morphoMarketV1AdapterV2Factory,
+            abi.encodeWithSignature("isMorphoMarketV1AdapterV2(address)", adapter),
+            abi.encode(isMorphoMarketV1AdapterV2)
+        );
+
+        assertEq(registry.isInRegistry(adapter), isMorphoMarketV1AdapterV2);
+    }
+}
diff --git a/test/periphery/MorphoVaultV1RegistryTest.sol b/test/periphery/MorphoVaultV1RegistryTest.sol
new file mode 100644
index 000000000..cd4342cf1
--- /dev/null
+++ b/test/periphery/MorphoVaultV1RegistryTest.sol
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2026 Morpho Association
+pragma solidity ^0.8.28;
+
+import {Test} from "forge-std/Test.sol";
+import {MorphoVaultV1Registry} from "../../src/periphery/registries/MorphoVaultV1Registry.sol";
+import {IMorphoVaultV1Registry} from "../../src/periphery/registries/interfaces/IMorphoVaultV1Registry.sol";
+
+contract MorphoVaultV1RegistryTest is Test {
+    IMorphoVaultV1Registry registry;
+    address morphoVaultV1Factory = address(0x1001);
+    address morphoVaultV1AdapterFactory = address(0x1002);
+
+    function setUp() public {
+        registry = IMorphoVaultV1Registry(
+            address(new MorphoVaultV1Registry(morphoVaultV1AdapterFactory, morphoVaultV1Factory))
+        );
+    }
+
+    function testConstructor() public view {
+        assertEq(registry.morphoVaultV1AdapterFactory(), morphoVaultV1AdapterFactory);
+        assertEq(registry.morphoVaultV1Factory(), morphoVaultV1Factory);
+    }
+
+    function testIsInRegistry(address adapter, address morphoVaultV1, bool isMorphoVaultV1Adapter, bool isMetaMorpho)
+        public
+    {
+        vm.assume(adapter != address(vm));
+        vm.mockCall(
+            morphoVaultV1AdapterFactory,
+            abi.encodeWithSignature("isMorphoVaultV1Adapter(address)", adapter),
+            abi.encode(isMorphoVaultV1Adapter)
+        );
+
+        if (isMorphoVaultV1Adapter) {
+            vm.mockCall(adapter, abi.encodeWithSignature("morphoVaultV1()"), abi.encode(morphoVaultV1));
+            vm.mockCall(
+                morphoVaultV1Factory,
+                abi.encodeWithSignature("isMetaMorpho(address)", morphoVaultV1),
+                abi.encode(isMetaMorpho)
+            );
+        }
+
+        bool expected = isMorphoVaultV1Adapter && isMetaMorpho;
+        assertEq(registry.isInRegistry(adapter), expected);
+    }
+
+    // check that if the adapter isn't a vault adapter, it doesn't revert (basically checks the order of execution of
+    // solidity).
+    function testNoObscureRevert(address adapter) public {
+        vm.mockCall(
+            morphoVaultV1AdapterFactory,
+            abi.encodeWithSignature("isMorphoVaultV1Adapter(address)", adapter),
+            abi.encode(false)
+        );
+
+        registry.isInRegistry(adapter);
+    }
+}
diff --git a/test/periphery/RegistryListTest.sol b/test/periphery/RegistryListTest.sol
new file mode 100644
index 000000000..1a08fdd63
--- /dev/null
+++ b/test/periphery/RegistryListTest.sol
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2026 Morpho Association
+pragma solidity ^0.8.28;
+
+import {Test} from "forge-std/Test.sol";
+import {RegistryList} from "../../src/periphery/registries/RegistryList.sol";
+import {IRegistryList} from "../../src/periphery/registries/interfaces/IRegistryList.sol";
+
+contract RegistryListTest is Test {
+    IRegistryList registry;
+    address user = address(0x1);
+
+    function setUp() public {
+        registry = IRegistryList(address(new RegistryList()));
+    }
+
+    function testConstructor() public view {
+        assertEq(registry.owner(), address(this));
+        assertEq(registry.subRegistriesLength(), 0);
+    }
+
+    function testConstructorEvent() public {
+        vm.expectEmit(true, false, false, false);
+        emit RegistryList.Constructor(address(this));
+        new RegistryList();
+    }
+
+    function testSetOwner(address newOwner) public {
+        vm.expectEmit(true, false, false, false);
+        emit RegistryList.SetOwner(newOwner);
+
+        registry.setOwner(newOwner);
+        assertEq(registry.owner(), newOwner);
+    }
+
+    function testSetOwnerOnlyOwner() public {
+        vm.prank(user);
+        vm.expectRevert("Not owner");
+        registry.setOwner(address(0x123));
+    }
+
+    function testAddSubRegistry(address subRegistry) public {
+        vm.expectEmit(true, false, false, false);
+        emit RegistryList.AddSubRegistry(subRegistry);
+
+        registry.addSubRegistry(subRegistry);
+
+        assertEq(registry.subRegistriesLength(), 1);
+        assertEq(registry.subRegistries(0), subRegistry);
+    }
+
+    function testAddRegistrySubRegistryOnlyOwner() public {
+        vm.prank(user);
+        vm.expectRevert("Not owner");
+        registry.addSubRegistry(address(0x1002));
+    }
+
+    function testIsInRegistryWithSubRegistries(address adapter, bool subRegistry1Result, bool subRegistry2Result)
+        public
+    {
+        address subRegistry1 = address(0x1001);
+        address subRegistry2 = address(0x1002);
+
+        registry.addSubRegistry(subRegistry1);
+        registry.addSubRegistry(subRegistry2);
+
+        vm.mockCall(
+            subRegistry1, abi.encodeWithSignature("isInRegistry(address)", adapter), abi.encode(subRegistry1Result)
+        );
+        vm.mockCall(
+            subRegistry2, abi.encodeWithSignature("isInRegistry(address)", adapter), abi.encode(subRegistry2Result)
+        );
+
+        bool expected = subRegistry1Result || subRegistry2Result;
+        assertEq(registry.isInRegistry(adapter), expected);
+    }
+
+    function testIsInRegistryNoSubRegistries(address adapter) public view {
+        assertFalse(registry.isInRegistry(adapter));
+    }
+
+    function testAddingRevertingSubRegistry(address adapter, address legitSubRegistry, address revertingSubRegistry)
+        public
+    {
+        assumeAddressIsNot(legitSubRegistry, AddressType.ForgeAddress);
+        vm.assume(legitSubRegistry != revertingSubRegistry);
+        vm.assume(legitSubRegistry != address(0));
+
+        registry.addSubRegistry(legitSubRegistry);
+        registry.addSubRegistry(revertingSubRegistry);
+
+        vm.mockCall(legitSubRegistry, abi.encodeWithSignature("isInRegistry(address)", adapter), abi.encode(true));
+
+        assertTrue(registry.isInRegistry(adapter));
+    }
+}