𝐇𝐨𝐰 𝐭𝐨 𝐄𝐱𝐩𝐨𝐬𝐞 𝐀𝐖𝐒 𝐋𝐚𝐦𝐛𝐝𝐚 𝐚𝐬 𝐚𝐧 𝐌𝐂𝐏 𝐓𝐨𝐨𝐥 𝐰𝐢𝐭𝐡 Bedrock 𝐀𝐠𝐞𝐧𝐭𝐂𝐨𝐫𝐞 𝐆𝐚𝐭𝐞𝐰𝐚𝐲

Most enterprises already have dozens (if not hundreds) of AWS Lambda functions powering business logic.
But here’s the problem:
👉 How do you make those functions easily consumable by AI agents in a secure, standardized way?
That’s where Amazon Bedrock AgentCore Gateway + Model Context Protocol (MCP) come in.
Think of the Gateway as a universal adapter that lets your Lambda “speak MCP,” so any agent can discover and call it as a tool.

𝐀𝐦𝐚𝐳𝐨𝐧 𝐁𝐞𝐝𝐫𝐨𝐜𝐤 𝐀𝐠𝐞𝐧𝐭𝐂𝐨𝐫𝐞 𝐆𝐚𝐭𝐞𝐰𝐚𝐲
1️⃣ One-stop bridge for agents → Turn APIs, Lambda functions, or existing services into MCP-compatible tools with just a few lines of config.
2️⃣ Scale with security → Built-in ingress auth (who can call) + egress auth (how Gateway connects to backends).
3️⃣ Developer speed → No weeks of glue code or infra provisioning — Gateway handles it.
4️⃣ Broad support → Works with OpenAPI, Smithy, and Lambda as input types.

What I did in this example:

● Created a simple Lambda function (get_order, update_order) to simulate order lookups and updates.
● Used AgentCore Gateway to expose that Lambda as MCP tools.
● Configured Cognito for inbound OAuth2 authentication and an IAM role for outbound authorization.
● Connected with an MCP client to listTools and callTool, and got back real Lambda responses.

After wiring everything up, my MCP client returned:
🔧 get_order_tool
📝 Action: Fetch order status
📦 Result: { "orderId": "123", "status": "SHIPPED" }

🔧 update_order_tool
📝 Action: Update order status
📦 Result: { "orderId": "123", "status": "UPDATED" }

💻 Want to try this example yourself?
I’ve published the full working code here:
👉 https://lnkd.in/gdrhHFDs

This is just the beginning — next, I’ll explore exposing APIs (OpenAPI/Smithy) and chaining multiple tools together for richer agent workflows.

Reference: Learn More About AgentCore Gateway
To get a deeper understanding of how Amazon Bedrock AgentCore Gateway simplifies tool integration for AI agents, check out the official docs:

https://lnkd.in/gGTB3EJD