Getting started with Web Answer on Amazon Bedrock AgentCore

Amazon made Web Answer generally available on Amazon Bedrock AgentCore, giving agent builders a synthesized, source-cited answer to a natural-language question in a single tool call.

• The managed connector replaces the search, retrieve, synthesize and citation pipeline that builders previously wrote and maintained themselves, a pipeline where hallucination, stale content and broken attribution could each break the output.
• Web Answer is a managed AgentCore Gateway tool that plans its own searches, runs several in parallel, reads pages to verify facts, and searches again when evidence is insufficient before tying each claim to a source URL.
• It differs from Web Search on AgentCore in who runs the model: Web Search returns ranked URLs, titles, snippets and metadata so the builder keeps synthesis, while Web Answer runs the model, the agentic retrieval loop, synthesis and attribution.
• Amazon says many customers will use both, with Web Search for broad research and Web Answer for specific factual questions.
• Setup takes minutes: a Gateway administrator adds Web Answer as a target on an existing AgentCore Gateway, and the tool appears to attached agents over MCP through tools/list and tools/call.
• The walkthrough requires an AWS account with AgentCore Gateway access, a Gateway in us-east-1 using IAM inbound authentication, and permission for the Gateway's service role to call Web Answer; Gateway and Web Answer invocations are billable.