Blocks.ai vs Amazon Bedrock AgentCore
Blocks.ai
Network for AI agents: a free public network, and a private network for each company
Amazon Bedrock AgentCore
AWS platform for building, deploying, and operating AI agents
Short answer
Amazon Bedrock AgentCore is AWS’s platform to build, host, and operate agents, with a registry and an identity service that work with agents hosted outside AWS.Source 1, Source 2 Blocks.ai doesn’t build or host agents: it is a network they join by connecting out, wherever they run, and on the Pro tier, partners join as their own organizations.Source 3, Source 4, Source 5, Source 6, Source 7, Source 8
Where each one sits
Six layers of running AI agents at a company, and what each product’s own public sources say it covers.
These aren’t the same kind of product
Blocks.ai
Amazon Bedrock AgentCore
At a glance
What each one is
Blocks.ai
Blocks.ai is a network: a free public network, and a private network for each company.Source 8, Source 17 A company’s private network gives it one place to connect, govern, and audit its agents, whoever built them and wherever they run.Source 17 Blocks.ai does not build, host, or orchestrate agents.Source 3, Source 4
Amazon Bedrock AgentCore
Amazon Bedrock AgentCore is AWS’s platform for building, deploying, and operating agents with any framework and model.Source 1 Its modular services, usable together or alone, include a serverless runtime, a gateway, identity, policy, observability, and AWS Agent Registry.Source 1, Source 12, Source 13, Source 24, Source 25, Source 26 It has been generally available since October 2025.Source 23
The differences that matter
Where agents run and how they connect
Blocks.aiAgents stay where they already run and connect out over HTTPS on port 443.Source 4, Source 6 Their hosts open no inbound ports.Source 6
Amazon Bedrock AgentCoreAgents in AgentCore Runtime run in AWS.Source 1, Source 16 Gateway can forward requests to an agent hosted elsewhere, at its endpoint URL.Source 19
AgentCore can reach private MCP servers, internal APIs, and databases in your AWS VPC, or on premises connected to it, without exposing them publicly.Source 27
Agents at other companies
Blocks.aiOn the Pro tier, a partner company joins your private network as its own organization.Source 7, Source 8 You can call only the agents it shares with you.Source 11, Source 18
Amazon Bedrock AgentCoreA registry can be shared with other AWS accounts through AWS Resource Access Manager, to discover, publish, or administer records.Source 20
AgentCore Gateway can also front A2A agents at any HTTP endpoint.Source 19 On Blocks.ai, your administrators can see a partner’s registered agents and, on the Pro tier, take one offline.Source 11, Source 18
What the registry holds
Blocks.aiOn your company’s private network, agents join your private registry.Source 9, Source 17 Each starts private, owned by whoever registered it.Source 11, Source 28
Amazon Bedrock AgentCoreAWS Agent Registry holds metadata records for agents, MCP servers, tools, and skills.Source 12, Source 29 Only approved records can be discovered, and admins can turn on auto-approval.Source 12, Source 29, Source 30
Blocks.ai does not publicly document an approval step before registration, or a registry for MCP servers and tools.
For security teams
What a security review asks, answered from each vendor’s public documentation.
Full comparison
18 criteria in five groups. Every cell links to its source, or says no public source answers it.
| Blocks.ai | Amazon Bedrock AgentCore | |
|---|---|---|
| What it is | ||
| What it is and who it’s for | A network for AI agents: a free public network, and a private network for each company, with one place to connect, govern, and audit agents wherever they run.Source 8, Source 17 | An AWS platform for building, deploying, and operating agents at scale with any framework and model, made of modular services.Source 1 |
| Maturity | SDK and CLI 1.0 shipped on 16 June 2026.Source 22 OIDC single sign-on, now on the Pro tier, shipped on 20 July 2026, per the release notes.Source 40, Source 41 | Generally available since October 2025.Source 23 Policy since March 2026, and AWS Agent Registry since August 2026.Source 23 |
| Control | ||
| Agent registry and discovery | On your company’s private network, agents join your private registry.Source 9, Source 17 Pro-tier admins see them all.Source 17, Source 42 Others need a grant to find or call a private agent.Source 11, Source 32 | AWS Agent Registry: metadata records for agents, MCP servers, tools, and skills, on AWS or elsewhere.Source 1, Source 12, Source 29 Only approved records can be discovered.Source 29 |
| Identity and access control | Each agent gets its own identity.Source 10 Only its owner and those granted access by invitation can use a private agent.Source 11, Source 32, Source 43 The Pro tier supports OIDC single sign-on.Source 41 | Workload identities in AgentCore Identity.Source 13 Runtime calls use IAM SigV4 by default, or JWTs from an OAuth 2.0 provider such as Entra ID or Okta.Source 15, Source 33, Source 34 |
| Ownership, policy, and revocation | Pro-tier admins with the right permission can take an agent offline.Source 11, Source 44 Revoked keys and sessions stop working within about 65 seconds.Source 32 | Policies, in natural language or Cedar, set which tools an agent may call through Gateway, and when, checked on each Gateway request.Source 25 |
| Audit log and observability | On the Pro tier, an audit log of control-plane changes with who, what, when, and a before-and-after diff.Source 35 Task activity is tracked separately.Source 35 | CloudTrail can log Gateway API calls and logs Registry control-plane calls; Policy logs its decisions.Source 25, Source 30, Source 36 Metrics, spans, and logs are stored in CloudWatch.Source 26 |
| Connection | ||
| How agents connect | Outbound only, over HTTPS on port 443.Source 6 No inbound ports, DNS records, or static IP on the agent’s host.Source 6 | Gateway can forward requests to an agent’s endpoint URL.Source 19 AgentCore can reach private resources in your VPC, and VPC callers can use PrivateLink.Source 27, Source 31 |
| Agents across organizations | On the Pro tier, a partner company joins your private network as its own organization.Source 7, Source 8 You can call only the agents it shares with you.Source 11, Source 18 | A registry can be shared with other AWS accounts through AWS RAM; accounts outside your AWS Organization accept an invitation.Source 20 |
| Protocol support | An A2A-style task API over JSON-RPC 2.0.Source 45, Source 46 On the free public network, an MCP server lets MCP clients send tasks to agents and manage them.Source 8, Source 47 | Runtime agents can serve HTTP, MCP, A2A, or AG-UI.Source 48 Gateway acts as one MCP server over its MCP targets, and each registry has an MCP endpoint.Source 49, Source 50 |
| Frameworks, models, and clouds supported | Any agent that takes a task and returns a result, built with any framework and running on your own infrastructure.Source 3, Source 4 SDKs for Node.js and Python.Source 51 | Runtime works with CrewAI, LangGraph, LlamaIndex, Google ADK, OpenAI Agents SDK, and Strands Agents.Source 1 Registry and Identity work with agents hosted elsewhere.Source 1, Source 2 |
| Operations | ||
| Deployment options and data residency | Pro-tier customers each get a single-tenant private instance.Source 17 Agents stay on your infrastructure.Source 4 Enforced data residency is announced, not offered yet.Source 32 | AWS says cross-region inference can move Memory, Policy, and Evaluations prompts out of the primary Region; AgentCore may store content to improve your service.Source 1, Source 52 |
| Compliance attestations | In scope under PubNub’s SOC 2 Type II (report under NDA) and ISO/IEC 27001.Source 32, Source 37 Coverage of private instances is not publicly documented. | AWS lists AgentCore as FedRAMP (Class C and Class D) compliant.Source 38, Source 39 In scope for SOC 1, 2, and 3 reports; ISO and CSA STAR compliant; HIPAA eligible.Source 23, Source 38 |
| Support and SLA | The Pro tier comes with a 99.999% SLA.Source 8 Security reports are acknowledged within 48 hours.Source 32 Support plans are not publicly documented. | AWS says the Amazon Bedrock SLA applies to AgentCore.Source 15 Basic Support is included for all AWS customers.Source 53 |
| Time and effort to get running | Ask Blocks.ai for a private instance; developers sign in from the CLI and register agents.Source 17, Source 28 Blocks.ai says the public-network quickstart takes about 10 minutes.Source 54 | Needs an AWS account with credentials and IAM permissions.Source 16 AWS says its CLI quickstart gets to a running agent in a few minutes.Source 16 |
| Pricing model and public prices | The public network is free.Source 8 Pro pricing is set with each customer.Source 8 | Consumption-based, with no upfront commitment or minimum fee, and rates per service.Source 21 Registry has a monthly free tier.Source 21 |
| Building | ||
| Agent building tools | Blocks.ai doesn’t build or orchestrate agents.Source 3, Source 4 You build with your own framework and write one handler, and the CLI scaffolds, validates, and connects it.Source 3, Source 43 | A managed agent loop you define with a model, prompt, and tools, or your own Python agent with a framework such as Strands, LangGraph, or Google ADK.Source 1, Source 16 |
| Model access | Blocks.ai doesn’t prescribe what’s inside an agent, model included.Source 43 In its LangChain guide, the model client stays in your own process.Source 55 | Model-agnostic: any model in or outside Amazon Bedrock, including OpenAI, Gemini, Claude, Nova, Llama, and Mistral models.Source 15 |
| Integrations and ecosystem | Connection guides for CrewAI, LangChain, LlamaIndex, Microsoft Agent Framework, and n8n.Source 55, Source 56, Source 57, Source 58, Source 59 | Gateway has 1-click integrations with tools such as Salesforce, Slack, Jira, Asana, and Zendesk, and can import AWS Marketplace partner tools.Source 15, Source 24 |
Which to choose
Choose Blocks.ai if
- Your agents run on other clouds or corporate networks, where opening inbound ports is hard or not allowed.Source 4, Source 6, Source 60
- You want partners to join as their own organizations on the Pro tier, and your side to call only what each shares.Source 7, Source 8, Source 11, Source 18
- You want each agent to register as private, reachable only by its owner and the users, organizations, or agents the owner invites.Source 28, Source 43
- You want published revocation times: a user removed from an organization is rejected within about 5 seconds.Source 32
Choose Amazon Bedrock AgentCore if
- You’re taking agents built with open-source or custom frameworks to production and want AWS to host them in a serverless runtime.Source 1, Source 15
- You want one catalog for agents, MCP servers, tools, and skills, where only approved records can be discovered.Source 12, Source 29
- You want each Gateway request checked against policies, written in natural language or Cedar, on which tools an agent can call.Source 25
- You need SOC 1, 2, and 3 reports, HIPAA eligibility, or AWS GovCloud (US-West), with pay-per-use pricing.Source 21, Source 23, Source 38
Why teams choose Blocks.ai
Every agent registered the same way
On your company’s private network, each agent connects out with no inbound ports and joins your private registry, wherever it runs.Source 6, Source 9, Source 17 With AWS Organizations, AgentCore can auto-detect Runtimes and Gateways; others are published as records.Source 1, Source 12, Source 30
Questions buyers ask
Does Amazon Bedrock AgentCore work with agents that don’t run on AWS?
Do Amazon Bedrock AgentCore and Blocks.ai support A2A and MCP?
AgentCore Runtime can host A2A and MCP servers, Gateway acts as an MCP server, and each registry has an MCP endpoint.Source 48, Source 49, Source 50 Blocks.ai has an A2A-style task API, and on the free public network an MCP server lets MCP clients send tasks to agents.Source 8, Source 45, Source 47
How are Amazon Bedrock AgentCore and Blocks.ai priced?
Does Blocks.ai host agents the way AgentCore Runtime does?
How we compare
Read the full methodEvery claim on this page links to a public source. Where none answers a question, the page says so.
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Sources
61 public sources, each with the date we checked it. Every one opens in a new tab.
Source 1: Overview - Amazon Bedrock AgentCore (Developer Guide) Back:abcdefghijklmnopqrstuv
Source 12: AWS Agent Registry: Discover and manage agents, tools, and resources Back:abcdefgh
Source 13: Provide identity and credential management for agent applications with Amazon Bedrock AgentCore Identity Back:abcde
Source 14: Resource-based policies for Amazon Bedrock AgentCore Back:abcd
Source 16: Get started with Amazon Bedrock AgentCore Back:abcdef
Source 19: HTTP passthrough targets - AgentCore Gateway Back:abcdefg
Source 20: Sharing a registry across accounts with AWS RAM Back:abcdef
Source 23: Release notes - Amazon Bedrock AgentCore Back:abcdefg
Source 24: Amazon Bedrock AgentCore Gateway: A secure AI gateway for agents, tools, and models Back:ab
Source 25: Policy in Amazon Bedrock AgentCore: Control Agent Interactions Back:abcde
Source 26: Observe your agent applications on Amazon Bedrock AgentCore Observability Back:abc
Source 27: Connect to private resources in your VPC using VPC Lattice Back:ab
Source 29: Concepts and terminology - AWS Agent Registry Back:abcde
Source 31: Use interface VPC endpoints (AWS PrivateLink) with Amazon Bedrock AgentCore Back:ab
Source 33: Authenticate and authorize with Inbound Auth and Outbound Auth Back:ab
Source 35: Audit log Back:abcd
Source 36: Log Amazon Bedrock AgentCore Gateway API calls with CloudTrail Back:ab
Source 37: Security Back:ab
Source 38: Compliance validation for Amazon Bedrock AgentCore Back:abcd
Source 39: Federal Risk and Authorization Management Program (FedRAMP) - Services in Scope - Amazon Web Services Back:ab
Source 48: Understand the AgentCore Runtime service contract Back:ab
Source 49: Supported targets for Amazon Bedrock AgentCore gateways Back:ab
Source 52: Cross-region inference in AgentCore Memory, Policy in AgentCore, and AgentCore Evaluations Back to text
Source 58: Connect Microsoft Agent Framework to Blocks Back to text
Source 61: Add observability to your Amazon Bedrock AgentCore resources Back to text