Connecting MCP servers to Amazon Bedrock AgentCore Gateway using Authorization Code flow
TL;DR
Amazon Bedrock AgentCore Gateway acts as a centralized layer for managing how AI agents connect to tools and MCP servers across an organization.
Key Points
- A new AWS blog post walks through configuring AgentCore Gateway to connect to an OAuth-protected MCP server using the Authorization Code flow.
- The Authorization Code flow is the standard OAuth 2.0 pattern for user-consent scenarios, here adapted for agent-to-tool communication.
- AgentCore Gateway handles token management and authentication centrally, removing the need for each agent to implement its own auth logic.
Nauti's Take
AWS is methodically building a control plane around MCP – and that is a strategically sharp move. Whoever owns the gateway layer owns the policy for which agents can reach which tools, and that is exactly the governance lever enterprise customers need.
The Authorization Code flow is arguably over-engineered for purely machine-to-machine communication, but it signals serious interoperability intent rather than another proprietary silo. For teams already invested in Bedrock this is a genuine win; for everyone else it is one more reason why the MCP standard is gaining real momentum.
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