AgentOS vs AWS Bedrock AgentCore
AgentCore is the closest hyperscaler analog to AgentOS — framework-agnostic runtime, identity primitives, an MCP-speaking gateway, real observability. Take it seriously. The difference is sovereignty: AgentCore roots everything in AWS IAM and runs in AWS. AgentOS roots governance in your directory and your policy engines, on any Kubernetes, across clouds.
Choose AgentCore for an AWS-committed estate that wants managed agent infrastructure with real primitives. Choose AgentOS when agents must be governed as a workforce across clouds and vendors — humans and agents in one directory, expiring standing authority, budgets and evidence that don’t stop at the AWS account boundary.
For the security & risk owner
| Dimension | AgentOS | AWS Bedrock AgentCore |
|---|---|---|
| Agent identity | ✓ Every agent is a named principal in your directory; credentials issued per worker, never shared | ◐ AgentCore Identity — real primitives, rooted in AWS IAM, AWS-scoped |
| Delegated authority | ✓ Subject/actor chain on every hop; an orchestrator can never exceed the requester | ◐ AgentCore Identity acts on behalf of users with pre-authorized consent, brokering OAuth tokens and working with Cognito, Okta and Entra ID |
| Authorization | ✓ Externalized OPA policy + SpiceDB relationship graph, fail-closed, enforced at the resource — not in prompt text | ◐ IAM policies and guardrails — AWS-scope, not engines you run |
| Human approvals | ✓ Durable platform primitive — survives restarts, waits days, lands in the audit ledger | ◐ Temporal policies at the gateway can require a recorded human approval for a significant action, with prerequisite steps and escalation triggers |
| Scheduled autonomy | ✓ Standing authority that expires: permissions re-resolve at every fire, originators recertify every 30 days, and a target that drifted refuses to run | ◐ EventBridge schedules fire under IAM roles indefinitely; nothing expires or recertifies |
| Cost governance | ✓ Per-action attribution, windowed quotas, budget envelopes that travel with delegated work | ◐ Rate limiting caps consumption per user across every tool, model and agent — requests, tokens and connection time; billing is metered per capability |
| Audit & evidence | ✓ Correlated governance-grade ledger — even a skipped scheduled fire is a record; SIEM export, evidence packs | ◐ CloudTrail + AgentCore observability — infrastructure-grade |
For the platform architect
| Dimension | AgentOS | AWS Bedrock AgentCore |
|---|---|---|
| Build model | ✓ Build here or bring your own — a no-code builder and governed build service in the platform, plus any framework (LangGraph, CrewAI, plain code) over open contracts | ✓ Framework-agnostic runtime — the closest hyperscaler stance to ours; real credit |
| Integrations | ◐ Governed connector layer — fewer connectors, every one policy-checked with provenance | ◐ Gateway turns APIs into tools — good, AWS-hosted |
| MCP | ✓ MCP servers as first-class governed connectors: brokered egress so no credential reaches the agent, per-caller tool visibility, per-principal OAuth binding | ✓ The gateway speaks MCP natively and follows the MCP authorization specification, with OAuth on inbound tool calls |
| Multi-agent | ✓ Open A2A mesh with authorization-bound edges; mutual TLS with SPIFFE-issued workload identities | ◐ A2A support emerging; trust rooted in AWS IAM |
| Long-running work | ✓ Durable orchestration — workflows survive restarts mid-approval | ✓ Long-running serverless sessions — genuinely built for extended work |
| Knowledge access | ✓ Tenant-scoped retrieval with provenance; the egress gate replays the requester's entitlement on the way out | ◐ Bedrock Knowledge Bases — solid, AWS-hosted |
| Applications | ✓ Governed app registry — vertical apps launch same-domain with SSO, enabled per tenant, every enablement audited | ✗ Not a governed app registry |
| Deployment | ✓ Your Kubernetes, any cloud, federated to your IdP; first-class multi-tenancy | ✗ AWS only — the coupling is the point |
Where AWS Bedrock AgentCore is the right choice
- An AWS-committed estate that wants managed, serverless agent infrastructure without running a platform.
- The MCP-native gateway and long-running sessions are genuinely good engineering.
- Teams for whom AWS IAM already is the organizational root of trust.
The honest architecture: AgentCore validates our thesis — agents need identity, gateways and observability as first-class infrastructure. The remaining question is who those primitives answer to: an AWS account, or your enterprise. AgentOS exists for the second answer.
Questions prospects actually ask
Same shape, different root and reach. AgentCore identity is AWS-scoped workload identity; AgentOS puts agents beside your people in your directory, with delegation chains, expiring standing authority and human approvals as platform primitives.
If that’s durable and total, AgentCore may serve you well. In practice workforces sprawl — SaaS agents, another cloud, on-prem — and an account-rooted control plane can’t follow. A directory-rooted one can.
Yes to both — AgentOS runs on your EKS, and Bedrock is simply a governed model channel with per-channel attribution and deterministic fallback beside your other channels.
Don't take a comparison table's word for it.
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