diff --git a/packages/protocol-utils-evm/src/endpoint/sdk.ts b/packages/protocol-utils-evm/src/endpoint/sdk.ts
index 51f7c9fa1..3f64cc71f 100644
--- a/packages/protocol-utils-evm/src/endpoint/sdk.ts
+++ b/packages/protocol-utils-evm/src/endpoint/sdk.ts
@@ -1,26 +1,27 @@
 import type { IEndpoint } from '@layerzerolabs/protocol-utils'
 import { formatEid, type Address, type OmniTransaction } from '@layerzerolabs/utils'
 import type { EndpointId } from '@layerzerolabs/lz-definitions'
-import { ignoreZero, makeZeroAddress, omniContractToPoint, type OmniContract } from '@layerzerolabs/utils-evm'
+import { ignoreZero, makeZeroAddress, OmniSDK } from '@layerzerolabs/utils-evm'
 
-export class Endpoint implements IEndpoint {
-    constructor(public readonly contract: OmniContract) {}
-
-    async getDefaultReceiveLibrary(eid: EndpointId): Promise<string | undefined> {
+export class Endpoint extends OmniSDK implements IEndpoint {
+    async getDefaultReceiveLibrary(eid: EndpointId): Promise<Address | undefined> {
         return ignoreZero(await this.contract.contract.defaultReceiveLibrary(eid))
     }
 
-    async getSendLibrary(sender: Address, dstEid: EndpointId): Promise<string | undefined> {
+    async getSendLibrary(sender: Address, dstEid: EndpointId): Promise<Address | undefined> {
         return ignoreZero(await this.contract.contract.getSendLibrary(sender, dstEid))
     }
 
-    async getReceiveLibrary(receiver: Address, srcEid: EndpointId): Promise<[string | undefined, boolean]> {
+    async getReceiveLibrary(
+        receiver: Address,
+        srcEid: EndpointId
+    ): Promise<[address: Address | undefined, isDefault: boolean]> {
         return await this.contract.contract.getReceiveLibrary(receiver, srcEid)
     }
 
     async setDefaultReceiveLibrary(
         eid: EndpointId,
-        lib: string | null | undefined,
+        lib: Address | null | undefined,
         gracePeriod: number = 0
     ): Promise<OmniTransaction> {
         const data = this.contract.contract.interface.encodeFunctionData('setDefaultReceiveLibrary', [
@@ -35,7 +36,7 @@ export class Endpoint implements IEndpoint {
         }
     }
 
-    async getDefaultSendLibrary(eid: EndpointId): Promise<string | undefined> {
+    async getDefaultSendLibrary(eid: EndpointId): Promise<Address | undefined> {
         return ignoreZero(await this.contract.contract.defaultSendLibrary(eid))
     }
 
@@ -55,7 +56,7 @@ export class Endpoint implements IEndpoint {
         return this.contract.contract.isRegisteredLibrary(lib)
     }
 
-    async registerLibrary(lib: string): Promise<OmniTransaction> {
+    async registerLibrary(lib: Address): Promise<OmniTransaction> {
         const data = this.contract.contract.interface.encodeFunctionData('registerLibrary', [lib])
 
         return {
@@ -63,11 +64,4 @@ export class Endpoint implements IEndpoint {
             description: `Registering library ${lib}`,
         }
     }
-
-    protected createTransaction(data: string): OmniTransaction {
-        return {
-            point: omniContractToPoint(this.contract),
-            data,
-        }
-    }
 }
diff --git a/packages/protocol-utils-evm/src/uln302/sdk.ts b/packages/protocol-utils-evm/src/uln302/sdk.ts
index 54928a94f..24ab124df 100644
--- a/packages/protocol-utils-evm/src/uln302/sdk.ts
+++ b/packages/protocol-utils-evm/src/uln302/sdk.ts
@@ -1,12 +1,10 @@
 import type { EndpointId } from '@layerzerolabs/lz-definitions'
 import type { IUln302, Uln302ExecutorConfig, Uln302UlnConfig } from '@layerzerolabs/protocol-utils'
 import { Address, formatEid, type OmniTransaction } from '@layerzerolabs/utils'
-import { omniContractToPoint, type OmniContract, makeZeroAddress } from '@layerzerolabs/utils-evm'
+import { makeZeroAddress, OmniSDK } from '@layerzerolabs/utils-evm'
 import { Uln302ExecutorConfigSchema, Uln302UlnConfigInputSchema, Uln302UlnConfigSchema } from './schema'
 
-export class Uln302 implements IUln302 {
-    constructor(public readonly contract: OmniContract) {}
-
+export class Uln302 extends OmniSDK implements IUln302 {
     async getUlnConfig(eid: EndpointId, address?: Address | null | undefined): Promise<Uln302UlnConfig> {
         const config = await this.contract.contract.getUlnConfig(makeZeroAddress(address), eid)
 
@@ -51,11 +49,4 @@ export class Uln302 implements IUln302 {
             description: `Setting default ULN config for ${formatEid(eid)}: ${JSON.stringify(serializedConfig)}`,
         }
     }
-
-    protected createTransaction(data: string): OmniTransaction {
-        return {
-            point: omniContractToPoint(this.contract),
-            data,
-        }
-    }
 }
diff --git a/packages/protocol-utils/src/endpoint/types.ts b/packages/protocol-utils/src/endpoint/types.ts
index 93b80c4f9..4789f8dea 100644
--- a/packages/protocol-utils/src/endpoint/types.ts
+++ b/packages/protocol-utils/src/endpoint/types.ts
@@ -1,7 +1,14 @@
-import type { Address, OmniGraph, OmniPointBasedFactory, OmniTransaction } from '@layerzerolabs/utils'
+import type {
+    Address,
+    OmniGraph,
+    OmniPointBasedFactory,
+    OmniTransaction,
+    IOmniSDK,
+    Bytes32,
+} from '@layerzerolabs/utils'
 import type { EndpointId } from '@layerzerolabs/lz-definitions'
 
-export interface IEndpoint {
+export interface IEndpoint extends IOmniSDK {
     getDefaultReceiveLibrary(eid: EndpointId): Promise<Address | undefined>
     setDefaultReceiveLibrary(
         eid: EndpointId,
@@ -15,8 +22,11 @@ export interface IEndpoint {
     isRegisteredLibrary(lib: Address): Promise<boolean>
     registerLibrary(lib: Address): Promise<OmniTransaction>
 
-    getSendLibrary(sender: Address, dstEid: EndpointId): Promise<string | undefined>
-    getReceiveLibrary(receiver: Address, srcEid: EndpointId): Promise<[string | undefined, boolean]>
+    getSendLibrary(sender: Address, dstEid: EndpointId): Promise<Address | undefined>
+    getReceiveLibrary(
+        receiver: Address,
+        srcEid: EndpointId
+    ): Promise<[address: Bytes32 | undefined, isDefault: boolean]>
 }
 
 export interface EndpointEdgeConfig {
diff --git a/packages/protocol-utils/src/uln302/types.ts b/packages/protocol-utils/src/uln302/types.ts
index 1e59bb93f..f5b5ee3f0 100644
--- a/packages/protocol-utils/src/uln302/types.ts
+++ b/packages/protocol-utils/src/uln302/types.ts
@@ -1,7 +1,7 @@
-import type { Address, OmniGraph, OmniPointBasedFactory, OmniTransaction } from '@layerzerolabs/utils'
+import type { Address, OmniGraph, OmniPointBasedFactory, OmniTransaction, IOmniSDK } from '@layerzerolabs/utils'
 import type { EndpointId } from '@layerzerolabs/lz-definitions'
 
-export interface IUln302 {
+export interface IUln302 extends IOmniSDK {
     getUlnConfig(eid: EndpointId, address?: Address | null | undefined): Promise<Uln302UlnConfig>
     getExecutorConfig(eid: EndpointId, address?: Address | null | undefined): Promise<Uln302ExecutorConfig>
     setDefaultExecutorConfig(eid: EndpointId, config: Uln302ExecutorConfig): Promise<OmniTransaction>
diff --git a/packages/ua-utils-evm/src/oapp/sdk.ts b/packages/ua-utils-evm/src/oapp/sdk.ts
index 0d9a26a2b..b7ebeea82 100644
--- a/packages/ua-utils-evm/src/oapp/sdk.ts
+++ b/packages/ua-utils-evm/src/oapp/sdk.ts
@@ -1,8 +1,7 @@
 import type { IOApp } from '@layerzerolabs/ua-utils'
 import type { Bytes32, Address, OmniTransaction } from '@layerzerolabs/utils'
 import {
-    omniContractToPoint,
-    OmniContract,
+    type OmniContract,
     ignoreZero,
     makeBytes32,
     areBytes32Equal,
@@ -11,12 +10,15 @@ import {
 } from '@layerzerolabs/utils-evm'
 import type { EndpointId } from '@layerzerolabs/lz-definitions'
 import type { EndpointFactory, IEndpoint } from '@layerzerolabs/protocol-utils'
+import { OmniSDK } from '@layerzerolabs/utils-evm'
 
-export class OApp implements IOApp {
+export class OApp extends OmniSDK implements IOApp {
     constructor(
-        public readonly contract: OmniContract,
+        contract: OmniContract,
         private readonly endpointFactory: EndpointFactory
-    ) {}
+    ) {
+        super(contract)
+    }
 
     async getEndpoint(): Promise<IEndpoint> {
         let address: string
@@ -53,11 +55,4 @@ export class OApp implements IOApp {
         const data = this.contract.contract.interface.encodeFunctionData('setPeer', [eid, makeBytes32(address)])
         return this.createTransaction(data)
     }
-
-    protected createTransaction(data: string): OmniTransaction {
-        return {
-            point: omniContractToPoint(this.contract),
-            data,
-        }
-    }
 }
diff --git a/packages/ua-utils/src/oapp/types.ts b/packages/ua-utils/src/oapp/types.ts
index 320e5f2a7..dc3c177a7 100644
--- a/packages/ua-utils/src/oapp/types.ts
+++ b/packages/ua-utils/src/oapp/types.ts
@@ -1,10 +1,10 @@
 import type { EndpointId } from '@layerzerolabs/lz-definitions'
 import type { IEndpoint } from '@layerzerolabs/protocol-utils'
-import type { Address, OmniGraph, OmniTransaction } from '@layerzerolabs/utils'
+import type { Address, OmniGraph, OmniTransaction, IOmniSDK } from '@layerzerolabs/utils'
 import type { Bytes32 } from '@layerzerolabs/utils'
 import type { OmniPointBasedFactory } from '@layerzerolabs/utils'
 
-export interface IOApp {
+export interface IOApp extends IOmniSDK {
     getEndpoint(): Promise<IEndpoint>
     getPeer(eid: EndpointId): Promise<Bytes32 | undefined>
     hasPeer(eid: EndpointId, address: Bytes32 | Address | null | undefined): Promise<boolean>
diff --git a/packages/utils-evm/src/omnigraph/index.ts b/packages/utils-evm/src/omnigraph/index.ts
index 01b288f65..911698dcd 100644
--- a/packages/utils-evm/src/omnigraph/index.ts
+++ b/packages/utils-evm/src/omnigraph/index.ts
@@ -1,3 +1,4 @@
 export * from './coordinates'
 export * from './format'
+export * from './sdk'
 export * from './types'
diff --git a/packages/utils-evm/src/omnigraph/sdk.ts b/packages/utils-evm/src/omnigraph/sdk.ts
new file mode 100644
index 000000000..6c669f099
--- /dev/null
+++ b/packages/utils-evm/src/omnigraph/sdk.ts
@@ -0,0 +1,22 @@
+import { OmniPoint, OmniTransaction } from '@layerzerolabs/utils'
+import { IOmniSDK, OmniContract } from './types'
+import { omniContractToPoint } from './coordinates'
+
+/**
+ * Base class for all EVM SDKs, providing some common functionality
+ * to reduce the boilerplate
+ */
+export abstract class OmniSDK implements IOmniSDK {
+    constructor(public readonly contract: OmniContract) {}
+
+    get point(): OmniPoint {
+        return omniContractToPoint(this.contract)
+    }
+
+    protected createTransaction(data: string): OmniTransaction {
+        return {
+            point: this.point,
+            data,
+        }
+    }
+}
diff --git a/packages/utils-evm/src/omnigraph/types.ts b/packages/utils-evm/src/omnigraph/types.ts
index b5950bf48..1edde4a17 100644
--- a/packages/utils-evm/src/omnigraph/types.ts
+++ b/packages/utils-evm/src/omnigraph/types.ts
@@ -1,8 +1,15 @@
 import type { Contract } from '@ethersproject/contracts'
-import type { OmniPoint, WithEid } from '@layerzerolabs/utils'
+import type { IOmniSDK as IOmniSDKAbstract, OmniPoint, WithEid } from '@layerzerolabs/utils'
 
 export type OmniContract<TContract extends Contract = Contract> = WithEid<{
     contract: TContract
 }>
 
 export type OmniContractFactory = (point: OmniPoint) => OmniContract | Promise<OmniContract>
+
+/**
+ * Base interface for all EVM SDKs, adding the EVM specific attributes
+ */
+export interface IOmniSDK extends IOmniSDKAbstract {
+    contract: OmniContract
+}
diff --git a/packages/utils/src/omnigraph/types.ts b/packages/utils/src/omnigraph/types.ts
index 2782d646e..abfdb15ad 100644
--- a/packages/utils/src/omnigraph/types.ts
+++ b/packages/utils/src/omnigraph/types.ts
@@ -68,3 +68,10 @@ export type OmniPointBasedFactory<TValue> = (point: OmniPoint) => TValue | Promi
  * Helper type that adds eid property to an underlying type
  */
 export type WithEid<TValue> = TValue & { eid: EndpointId }
+
+/**
+ * Base interface for all SDKs
+ */
+export interface IOmniSDK {
+    point: OmniPoint
+}