Amazon Bedrock Agents Amazon Bedrock AgentCore
Legacy names Amazon Bedrock Agents, Amazon Bedrock Agents Classic
Managed agentic AI platform providing serverless runtime microVMs, managed agent harness, memory, tool gateway, identity, and evaluation for production AI agents.
Naming timeline
- Amazon Bedrock Agents (later renamed Amazon Bedrock Agents Classic)
Launched as a managed capability in Amazon Bedrock for building generative AI agents with action groups and knowledge bases; renamed to Amazon Bedrock Agents Classic and closed to new customers in July 2026.
- Amazon Bedrock AgentCoreCurrent name
Released as the modular agentic successor platform offering AgentCore Runtime, Harness, Memory, Gateway, Browser, Code Interpreter, Identity, and Evaluations.
What replaced Amazon Bedrock Agents?
Amazon Bedrock Agents has been superseded by Amazon Bedrock AgentCore, with the latest change in October 2025 (AgentCore General Availability (Preview July 2025)). Earlier names covered by this entry also include Amazon Bedrock Agents Classic. Managed agentic AI platform providing serverless runtime microVMs, managed agent harness, memory, tool gateway, identity, and evaluation for production AI agents. The underlying legacy API or CLI surface is deprecated, so a technical migration is required.
Also known as
- AgentCore
- Amazon Bedrock AgentCore Runtime
- Amazon Bedrock AgentCore Harness
Technical identifiers
Legacy identifiers deprecated. The underlying API or CLI surface for the legacy name is officially deprecated, so this change requires a technical migration rather than a label update.
| AWS Service APIs / SDKs | bedrock-agentcore bedrock-agentcore-control bedrock-agent bedrock-agent-runtime |
|---|---|
| AWS CLI Commands | agentcore aws bedrock-agentcore aws bedrock-agentcore-control aws bedrock-agent aws bedrock-agent-runtime |
| IAM Actions & Policies | bedrock-agentcore:* BedrockAgentCoreFullAccess bedrock:* |
| Terraform Resources (aws_*) | aws_bedrockagentcore_agent_runtime aws_bedrockagentcore_memory aws_bedrockagentcore_gateway aws_bedrockagent_agent |
Amazon Bedrock Agents (bedrock-agent / aws_bedrockagent_agent) was renamed to Amazon Bedrock Agents Classic and closed to new customers on July 30, 2026 in favor of Amazon Bedrock AgentCore (bedrock-agentcore, bedrock-agentcore-control, agentcore CLI, and bedrock-agentcore:* IAM actions).
Notes & disambiguation
- Launched in general availability on November 28, 2023 as Amazon Bedrock Agents, the first-generation declarative agent builder was renamed to Amazon Bedrock Agents Classic on June 30, 2026 and placed in Maintenance Mode (closed to new customers effective July 30, 2026).
- Official AWS migration guidance directs customers to transition Amazon Bedrock Agents Classic workloads to Amazon Bedrock AgentCore (previewed in July 2025 and generally available in October 2025), using either the config-driven AgentCore Harness or code-defined agents on AgentCore Runtime (supporting Strands Agents, LangGraph, CrewAI, OpenAI Agents SDK, and MCP/A2A).
- Programmatic implementations transition from the legacy bedrock-agent / bedrock-agent-runtime APIs and aws_bedrockagent_agent Terraform resource to the bedrock-agentcore and bedrock-agentcore-control APIs, the agentcore CLI (@aws/agentcore), bedrock-agentcore:* IAM permissions, and aws_bedrockagentcore_* resources.
Sources & official documentation
- Official documentation ↗
- Product page ↗
- Amazon Bedrock Agents Classic maintenance mode & Migration to Amazon Bedrock AgentCore
- Overview - What is Amazon Bedrock AgentCore?
- Release notes for Amazon Bedrock AgentCore
- Document history for the Amazon Bedrock User Guide (Agents Classic availability change)
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